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Technologies utilisées
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Archives
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Installer le projet
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Installer le projet (avancé)
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|
|
<span class="md-ellipsis">
|
|
Configurer son éditeur
|
|
</span>
|
|
|
|
|
|
</a>
|
|
</li>
|
|
|
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|
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|
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<li class="md-nav__item">
|
|
<a href="../../tutorial/structure/" class="md-nav__link">
|
|
|
|
|
|
<span class="md-ellipsis">
|
|
Structure du projet
|
|
</span>
|
|
|
|
|
|
</a>
|
|
</li>
|
|
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|
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|
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<li class="md-nav__item">
|
|
<a href="../../tutorial/perms/" class="md-nav__link">
|
|
|
|
|
|
<span class="md-ellipsis">
|
|
Gestion des permissions
|
|
</span>
|
|
|
|
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
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|
|
<li class="md-nav__item">
|
|
<a href="../../tutorial/groups/" class="md-nav__link">
|
|
|
|
|
|
<span class="md-ellipsis">
|
|
Gestion des groupes
|
|
</span>
|
|
|
|
|
|
</a>
|
|
</li>
|
|
|
|
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|
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|
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|
|
<li class="md-nav__item">
|
|
<a href="../../tutorial/etransaction/" class="md-nav__link">
|
|
|
|
|
|
<span class="md-ellipsis">
|
|
Etransactions
|
|
</span>
|
|
|
|
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
</ul>
|
|
</nav>
|
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</li>
|
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|
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|
|
<li class="md-nav__item md-nav__item--active md-nav__item--nested">
|
|
|
|
|
|
|
|
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_4" checked>
|
|
|
|
|
|
<label class="md-nav__link" for="__nav_4" id="__nav_4_label" tabindex="0">
|
|
|
|
|
|
<span class="md-ellipsis">
|
|
How-to
|
|
</span>
|
|
|
|
|
|
<span class="md-nav__icon md-icon"></span>
|
|
</label>
|
|
|
|
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_4_label" aria-expanded="true">
|
|
<label class="md-nav__title" for="__nav_4">
|
|
<span class="md-nav__icon md-icon"></span>
|
|
How-to
|
|
</label>
|
|
<ul class="md-nav__list" data-md-scrollfix>
|
|
|
|
|
|
|
|
|
|
|
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|
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|
|
<li class="md-nav__item">
|
|
<a href="../querysets/" class="md-nav__link">
|
|
|
|
|
|
<span class="md-ellipsis">
|
|
L'ORM de Django
|
|
</span>
|
|
|
|
|
|
</a>
|
|
</li>
|
|
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|
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<li class="md-nav__item md-nav__item--active">
|
|
|
|
<input class="md-nav__toggle md-toggle" type="checkbox" id="__toc">
|
|
|
|
|
|
|
|
<label class="md-nav__link md-nav__link--active" for="__toc">
|
|
|
|
|
|
<span class="md-ellipsis">
|
|
Gérer les migrations
|
|
</span>
|
|
|
|
|
|
<span class="md-nav__icon md-icon"></span>
|
|
</label>
|
|
|
|
<a href="./" class="md-nav__link md-nav__link--active">
|
|
|
|
|
|
<span class="md-ellipsis">
|
|
Gérer les migrations
|
|
</span>
|
|
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<nav class="md-nav md-nav--secondary" aria-label="Table des matières">
|
|
|
|
|
|
|
|
|
|
<label class="md-nav__title" for="__toc">
|
|
<span class="md-nav__icon md-icon"></span>
|
|
Table des matières
|
|
</label>
|
|
<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#quest-ce-quune-migration" class="md-nav__link">
|
|
<span class="md-ellipsis">
|
|
Qu'est-ce qu'une migration ?
|
|
</span>
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#appliquer-les-migrations" class="md-nav__link">
|
|
<span class="md-ellipsis">
|
|
Appliquer les migrations
|
|
</span>
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#creer-une-migration" class="md-nav__link">
|
|
<span class="md-ellipsis">
|
|
Créer une migration
|
|
</span>
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#revenir-a-une-migration-anterieure" class="md-nav__link">
|
|
<span class="md-ellipsis">
|
|
Revenir à une migration antérieure
|
|
</span>
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#customiser-une-migration" class="md-nav__link">
|
|
<span class="md-ellipsis">
|
|
Customiser une migration
|
|
</span>
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#fusionner-des-migrations" class="md-nav__link">
|
|
<span class="md-ellipsis">
|
|
Fusionner des migrations
|
|
</span>
|
|
</a>
|
|
|
|
</li>
|
|
|
|
</ul>
|
|
|
|
</nav>
|
|
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../translation/" class="md-nav__link">
|
|
|
|
|
|
<span class="md-ellipsis">
|
|
Gérer les traductions
|
|
</span>
|
|
|
|
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../statics/" class="md-nav__link">
|
|
|
|
|
|
<span class="md-ellipsis">
|
|
Gérer les statics
|
|
</span>
|
|
|
|
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../js-import-paths/" class="md-nav__link">
|
|
|
|
|
|
<span class="md-ellipsis">
|
|
Ajouter un chemin d'import javascript
|
|
</span>
|
|
|
|
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../prod/" class="md-nav__link">
|
|
|
|
|
|
<span class="md-ellipsis">
|
|
Configurer pour la production
|
|
</span>
|
|
|
|
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../logo/" class="md-nav__link">
|
|
|
|
|
|
<span class="md-ellipsis">
|
|
Ajouter un logo de promo
|
|
</span>
|
|
|
|
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../subscriptions/" class="md-nav__link">
|
|
|
|
|
|
<span class="md-ellipsis">
|
|
Ajouter une cotisation
|
|
</span>
|
|
|
|
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../weekmail/" class="md-nav__link">
|
|
|
|
|
|
<span class="md-ellipsis">
|
|
Modifier le weekmail
|
|
</span>
|
|
|
|
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../terminal/" class="md-nav__link">
|
|
|
|
|
|
<span class="md-ellipsis">
|
|
Terminal
|
|
</span>
|
|
|
|
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
<li class="md-nav__item">
|
|
<a href="../direnv/" class="md-nav__link">
|
|
|
|
|
|
<span class="md-ellipsis">
|
|
Direnv
|
|
</span>
|
|
|
|
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
</ul>
|
|
</nav>
|
|
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item md-nav__item--nested">
|
|
|
|
|
|
|
|
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_5" >
|
|
|
|
|
|
<label class="md-nav__link" for="__nav_5" id="__nav_5_label" tabindex="0">
|
|
|
|
|
|
<span class="md-ellipsis">
|
|
Reference
|
|
</span>
|
|
|
|
|
|
<span class="md-nav__icon md-icon"></span>
|
|
</label>
|
|
|
|
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_5_label" aria-expanded="false">
|
|
<label class="md-nav__title" for="__nav_5">
|
|
<span class="md-nav__icon md-icon"></span>
|
|
Reference
|
|
</label>
|
|
<ul class="md-nav__list" data-md-scrollfix>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item md-nav__item--nested">
|
|
|
|
|
|
|
|
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_5_1" >
|
|
|
|
|
|
<label class="md-nav__link" for="__nav_5_1" id="__nav_5_1_label" tabindex="0">
|
|
|
|
|
|
<span class="md-ellipsis">
|
|
accounting
|
|
</span>
|
|
|
|
|
|
<span class="md-nav__icon md-icon"></span>
|
|
</label>
|
|
|
|
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_5_1_label" aria-expanded="false">
|
|
<label class="md-nav__title" for="__nav_5_1">
|
|
<span class="md-nav__icon md-icon"></span>
|
|
accounting
|
|
</label>
|
|
<ul class="md-nav__list" data-md-scrollfix>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../../reference/accounting/models/" class="md-nav__link">
|
|
|
|
|
|
<span class="md-ellipsis">
|
|
Models
|
|
</span>
|
|
|
|
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../../reference/accounting/views/" class="md-nav__link">
|
|
|
|
|
|
<span class="md-ellipsis">
|
|
Views
|
|
</span>
|
|
|
|
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
</ul>
|
|
</nav>
|
|
|
|
</li>
|
|
|
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|
|
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|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item md-nav__item--nested">
|
|
|
|
|
|
|
|
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_5_2" >
|
|
|
|
|
|
<label class="md-nav__link" for="__nav_5_2" id="__nav_5_2_label" tabindex="0">
|
|
|
|
|
|
<span class="md-ellipsis">
|
|
antispam
|
|
</span>
|
|
|
|
|
|
<span class="md-nav__icon md-icon"></span>
|
|
</label>
|
|
|
|
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_5_2_label" aria-expanded="false">
|
|
<label class="md-nav__title" for="__nav_5_2">
|
|
<span class="md-nav__icon md-icon"></span>
|
|
antispam
|
|
</label>
|
|
<ul class="md-nav__list" data-md-scrollfix>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../../reference/antispam/models/" class="md-nav__link">
|
|
|
|
|
|
<span class="md-ellipsis">
|
|
Models
|
|
</span>
|
|
|
|
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../../reference/antispam/forms/" class="md-nav__link">
|
|
|
|
|
|
<span class="md-ellipsis">
|
|
Forms
|
|
</span>
|
|
|
|
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
</ul>
|
|
</nav>
|
|
|
|
</li>
|
|
|
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|
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|
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|
|
|
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|
|
|
|
|
|
|
|
|
<li class="md-nav__item md-nav__item--nested">
|
|
|
|
|
|
|
|
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_5_3" >
|
|
|
|
|
|
<label class="md-nav__link" for="__nav_5_3" id="__nav_5_3_label" tabindex="0">
|
|
|
|
|
|
<span class="md-ellipsis">
|
|
club
|
|
</span>
|
|
|
|
|
|
<span class="md-nav__icon md-icon"></span>
|
|
</label>
|
|
|
|
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_5_3_label" aria-expanded="false">
|
|
<label class="md-nav__title" for="__nav_5_3">
|
|
<span class="md-nav__icon md-icon"></span>
|
|
club
|
|
</label>
|
|
<ul class="md-nav__list" data-md-scrollfix>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../../reference/club/models/" class="md-nav__link">
|
|
|
|
|
|
<span class="md-ellipsis">
|
|
Models
|
|
</span>
|
|
|
|
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../../reference/club/views/" class="md-nav__link">
|
|
|
|
|
|
<span class="md-ellipsis">
|
|
Views
|
|
</span>
|
|
|
|
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
</ul>
|
|
</nav>
|
|
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item md-nav__item--nested">
|
|
|
|
|
|
|
|
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_5_4" >
|
|
|
|
|
|
<label class="md-nav__link" for="__nav_5_4" id="__nav_5_4_label" tabindex="0">
|
|
|
|
|
|
<span class="md-ellipsis">
|
|
com
|
|
</span>
|
|
|
|
|
|
<span class="md-nav__icon md-icon"></span>
|
|
</label>
|
|
|
|
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_5_4_label" aria-expanded="false">
|
|
<label class="md-nav__title" for="__nav_5_4">
|
|
<span class="md-nav__icon md-icon"></span>
|
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<span class="md-ellipsis">
|
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Views
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</span>
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</a>
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</li>
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</ul>
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</nav>
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</li>
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<li class="md-nav__item md-nav__item--nested">
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<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_5_13" >
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<label class="md-nav__link" for="__nav_5_13" id="__nav_5_13_label" tabindex="0">
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<span class="md-ellipsis">
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pedagogy
|
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</span>
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<span class="md-nav__icon md-icon"></span>
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</label>
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<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_5_13_label" aria-expanded="false">
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<label class="md-nav__title" for="__nav_5_13">
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<span class="md-nav__icon md-icon"></span>
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pedagogy
|
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</label>
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<ul class="md-nav__list" data-md-scrollfix>
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<li class="md-nav__item">
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<a href="../../reference/pedagogy/models/" class="md-nav__link">
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<span class="md-ellipsis">
|
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Models
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</span>
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../../reference/pedagogy/views/" class="md-nav__link">
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<span class="md-ellipsis">
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Views
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</span>
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../../reference/pedagogy/schemas/" class="md-nav__link">
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<span class="md-ellipsis">
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Schemas
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</span>
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</a>
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</li>
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</ul>
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</nav>
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<li class="md-nav__item md-nav__item--nested">
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<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_5_14" >
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<label class="md-nav__link" for="__nav_5_14" id="__nav_5_14_label" tabindex="0">
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<span class="md-ellipsis">
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rootplace
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</span>
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<span class="md-nav__icon md-icon"></span>
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</label>
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<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_5_14_label" aria-expanded="false">
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<label class="md-nav__title" for="__nav_5_14">
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<span class="md-nav__icon md-icon"></span>
|
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rootplace
|
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</label>
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<ul class="md-nav__list" data-md-scrollfix>
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<li class="md-nav__item">
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<a href="../../reference/rootplace/models/" class="md-nav__link">
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<span class="md-ellipsis">
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Models
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</span>
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../../reference/rootplace/views/" class="md-nav__link">
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<span class="md-ellipsis">
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Views
|
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</span>
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</a>
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</li>
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</ul>
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</nav>
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</li>
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<li class="md-nav__item md-nav__item--nested">
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<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_5_15" >
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<label class="md-nav__link" for="__nav_5_15" id="__nav_5_15_label" tabindex="0">
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<span class="md-ellipsis">
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sas
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</span>
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<span class="md-nav__icon md-icon"></span>
|
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</label>
|
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<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_5_15_label" aria-expanded="false">
|
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<label class="md-nav__title" for="__nav_5_15">
|
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<span class="md-nav__icon md-icon"></span>
|
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sas
|
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</label>
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<ul class="md-nav__list" data-md-scrollfix>
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<li class="md-nav__item">
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<a href="../../reference/sas/models/" class="md-nav__link">
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<span class="md-ellipsis">
|
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Models
|
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</span>
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../../reference/sas/views/" class="md-nav__link">
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<span class="md-ellipsis">
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Views
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</span>
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../../reference/sas/schemas/" class="md-nav__link">
|
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<span class="md-ellipsis">
|
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Schemas
|
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</span>
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</a>
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</li>
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</ul>
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</nav>
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</li>
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<li class="md-nav__item md-nav__item--nested">
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<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_5_16" >
|
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<label class="md-nav__link" for="__nav_5_16" id="__nav_5_16_label" tabindex="0">
|
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<span class="md-ellipsis">
|
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staticfiles
|
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</span>
|
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<span class="md-nav__icon md-icon"></span>
|
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</label>
|
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|
|
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_5_16_label" aria-expanded="false">
|
|
<label class="md-nav__title" for="__nav_5_16">
|
|
<span class="md-nav__icon md-icon"></span>
|
|
staticfiles
|
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</label>
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<ul class="md-nav__list" data-md-scrollfix>
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<li class="md-nav__item">
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<a href="../../reference/staticfiles/apps/" class="md-nav__link">
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<span class="md-ellipsis">
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Apps
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</span>
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../../reference/staticfiles/storage/" class="md-nav__link">
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<span class="md-ellipsis">
|
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Storage
|
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</span>
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../../reference/staticfiles/finders/" class="md-nav__link">
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<span class="md-ellipsis">
|
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Finders
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</span>
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../../reference/staticfiles/processors/" class="md-nav__link">
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<span class="md-ellipsis">
|
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Processors
|
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</span>
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</a>
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</li>
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</ul>
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</nav>
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</li>
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<li class="md-nav__item md-nav__item--nested">
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<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_5_17" >
|
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<label class="md-nav__link" for="__nav_5_17" id="__nav_5_17_label" tabindex="0">
|
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<span class="md-ellipsis">
|
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subscription
|
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</span>
|
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<span class="md-nav__icon md-icon"></span>
|
|
</label>
|
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|
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<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_5_17_label" aria-expanded="false">
|
|
<label class="md-nav__title" for="__nav_5_17">
|
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<span class="md-nav__icon md-icon"></span>
|
|
subscription
|
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</label>
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<ul class="md-nav__list" data-md-scrollfix>
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<li class="md-nav__item">
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<a href="../../reference/subscription/models/" class="md-nav__link">
|
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<span class="md-ellipsis">
|
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Models
|
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</span>
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../../reference/subscription/views/" class="md-nav__link">
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<span class="md-ellipsis">
|
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Views
|
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</span>
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</a>
|
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</li>
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</ul>
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</nav>
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</li>
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<li class="md-nav__item md-nav__item--nested">
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<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_5_18" >
|
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<label class="md-nav__link" for="__nav_5_18" id="__nav_5_18_label" tabindex="0">
|
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|
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<span class="md-ellipsis">
|
|
trombi
|
|
</span>
|
|
|
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|
|
<span class="md-nav__icon md-icon"></span>
|
|
</label>
|
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|
|
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_5_18_label" aria-expanded="false">
|
|
<label class="md-nav__title" for="__nav_5_18">
|
|
<span class="md-nav__icon md-icon"></span>
|
|
trombi
|
|
</label>
|
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<ul class="md-nav__list" data-md-scrollfix>
|
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<li class="md-nav__item">
|
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<a href="../../reference/trombi/models/" class="md-nav__link">
|
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<span class="md-ellipsis">
|
|
Models
|
|
</span>
|
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</a>
|
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</li>
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<li class="md-nav__item">
|
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<a href="../../reference/trombi/views/" class="md-nav__link">
|
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|
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|
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<span class="md-ellipsis">
|
|
Views
|
|
</span>
|
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|
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</a>
|
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</li>
|
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</ul>
|
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</nav>
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</li>
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</ul>
|
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</nav>
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</li>
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</ul>
|
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</nav>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
|
|
|
|
|
|
<div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="toc" >
|
|
<div class="md-sidebar__scrollwrap">
|
|
<div class="md-sidebar__inner">
|
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|
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<nav class="md-nav md-nav--secondary" aria-label="Table des matières">
|
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<label class="md-nav__title" for="__toc">
|
|
<span class="md-nav__icon md-icon"></span>
|
|
Table des matières
|
|
</label>
|
|
<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#quest-ce-quune-migration" class="md-nav__link">
|
|
<span class="md-ellipsis">
|
|
Qu'est-ce qu'une migration ?
|
|
</span>
|
|
</a>
|
|
|
|
</li>
|
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|
|
<li class="md-nav__item">
|
|
<a href="#appliquer-les-migrations" class="md-nav__link">
|
|
<span class="md-ellipsis">
|
|
Appliquer les migrations
|
|
</span>
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#creer-une-migration" class="md-nav__link">
|
|
<span class="md-ellipsis">
|
|
Créer une migration
|
|
</span>
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#revenir-a-une-migration-anterieure" class="md-nav__link">
|
|
<span class="md-ellipsis">
|
|
Revenir à une migration antérieure
|
|
</span>
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#customiser-une-migration" class="md-nav__link">
|
|
<span class="md-ellipsis">
|
|
Customiser une migration
|
|
</span>
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#fusionner-des-migrations" class="md-nav__link">
|
|
<span class="md-ellipsis">
|
|
Fusionner des migrations
|
|
</span>
|
|
</a>
|
|
|
|
</li>
|
|
|
|
</ul>
|
|
|
|
</nav>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
|
|
|
|
|
|
<div class="md-content" data-md-component="content">
|
|
<article class="md-content__inner md-typeset">
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<h1>Gérer les migrations</h1>
|
|
|
|
<h2 id="quest-ce-quune-migration">Qu'est-ce qu'une migration ?<a class="headerlink" href="#quest-ce-quune-migration" title="Permanent link">¶</a></h2>
|
|
<p>Une migration est un fichier Python qui contient
|
|
des instructions pour modifier la base de données.
|
|
Une base de données évolue au cours du temps,
|
|
et les migrations permettent de garder une trace
|
|
de ces modifications.</p>
|
|
<p>Grâce à elles, on peut également apporter des modifications
|
|
à la base de données sans être obligées de la recréer.
|
|
On applique seulement les modifications nécessaires.</p>
|
|
<h2 id="appliquer-les-migrations">Appliquer les migrations<a class="headerlink" href="#appliquer-les-migrations" title="Permanent link">¶</a></h2>
|
|
<p>Pour appliquer les migrations, exécutez la commande suivante :</p>
|
|
<div class="language-bash highlight"><pre><span></span><code><span id="__span-0-1"><a id="__codelineno-0-1" name="__codelineno-0-1" href="#__codelineno-0-1"></a>python<span class="w"> </span>./manage.py<span class="w"> </span>migrate
|
|
</span></code></pre></div>
|
|
<p>Vous remarquerez peut-être que cette commande
|
|
a été utilisée dans la section
|
|
<a href="../../tutorial/install/">Installation</a>.
|
|
En effet, en partant d'une base de données vierge
|
|
et en appliquant toutes les migrations, on arrive
|
|
à l'état actuel de la base de données.
|
|
Logique.</p>
|
|
<p>Si vous utilisez cette commande sur une base de données
|
|
sur laquelle toutes les migrations ont été appliquées,
|
|
elle ne fera rien.</p>
|
|
<p>Si vous utilisez cette commande sur une base de données
|
|
sur laquelle seule une partie des migrations ont été appliquées,
|
|
seules les migrations manquantes seront appliquées.</p>
|
|
<h2 id="creer-une-migration">Créer une migration<a class="headerlink" href="#creer-une-migration" title="Permanent link">¶</a></h2>
|
|
<p>Pour créer une migration, exécutez la commande suivante :</p>
|
|
<div class="language-bash highlight"><pre><span></span><code><span id="__span-1-1"><a id="__codelineno-1-1" name="__codelineno-1-1" href="#__codelineno-1-1"></a>python<span class="w"> </span>./manage.py<span class="w"> </span>makemigrations
|
|
</span></code></pre></div>
|
|
<p>Cette commande comparera automatiquement le contenu
|
|
des classes de modèles et le comparera avec les
|
|
migrations déjà appliquées.
|
|
A partir de cette comparaison, elle générera
|
|
automatiquement une nouvelle migration.</p>
|
|
<div class="admonition note">
|
|
<p class="admonition-title">Note</p>
|
|
<p>La commande <code>makemigrations</code> ne fait que
|
|
générer les fichiers de migration.
|
|
Elle ne modifie pas la base de données.
|
|
Pour appliquer la migration, n'oubliez pas la
|
|
commande <code>migrate</code>.</p>
|
|
</div>
|
|
<p>Un fichier de migration ressemble à ça : </p>
|
|
<div class="language-python highlight"><pre><span></span><code><span id="__span-2-1"><a id="__codelineno-2-1" name="__codelineno-2-1" href="#__codelineno-2-1"></a><span class="kn">from</span> <span class="nn">django.db</span> <span class="kn">import</span> <span class="n">migrations</span>
|
|
</span><span id="__span-2-2"><a id="__codelineno-2-2" name="__codelineno-2-2" href="#__codelineno-2-2"></a>
|
|
</span><span id="__span-2-3"><a id="__codelineno-2-3" name="__codelineno-2-3" href="#__codelineno-2-3"></a>
|
|
</span><span id="__span-2-4"><a id="__codelineno-2-4" name="__codelineno-2-4" href="#__codelineno-2-4"></a><span class="k">class</span> <span class="nc">Migration</span><span class="p">(</span><span class="n">migrations</span><span class="o">.</span><span class="n">Migration</span><span class="p">):</span>
|
|
</span><span id="__span-2-5"><a id="__codelineno-2-5" name="__codelineno-2-5" href="#__codelineno-2-5"></a>
|
|
</span><span id="__span-2-6"><a id="__codelineno-2-6" name="__codelineno-2-6" href="#__codelineno-2-6"></a> <span class="n">dependencies</span> <span class="o">=</span> <span class="p">[</span>
|
|
</span><span id="__span-2-7"><a id="__codelineno-2-7" name="__codelineno-2-7" href="#__codelineno-2-7"></a> <span class="c1"># liste des autres migrations à appliquer avant celle-ci</span>
|
|
</span><span id="__span-2-8"><a id="__codelineno-2-8" name="__codelineno-2-8" href="#__codelineno-2-8"></a> <span class="p">]</span>
|
|
</span><span id="__span-2-9"><a id="__codelineno-2-9" name="__codelineno-2-9" href="#__codelineno-2-9"></a>
|
|
</span><span id="__span-2-10"><a id="__codelineno-2-10" name="__codelineno-2-10" href="#__codelineno-2-10"></a> <span class="n">operations</span> <span class="o">=</span> <span class="p">[</span>
|
|
</span><span id="__span-2-11"><a id="__codelineno-2-11" name="__codelineno-2-11" href="#__codelineno-2-11"></a> <span class="c1"># liste des opérations à appliquer sur la db</span>
|
|
</span><span id="__span-2-12"><a id="__codelineno-2-12" name="__codelineno-2-12" href="#__codelineno-2-12"></a> <span class="p">]</span>
|
|
</span></code></pre></div>
|
|
<p>Grâce à la liste des dépendances, Django sait dans
|
|
quel ordre les migrations doivent être appliquées.
|
|
Grâce à la liste des opérations, Django sait quelles
|
|
sont les opérations à appliquer durant cette migration.</p>
|
|
<h2 id="revenir-a-une-migration-anterieure">Revenir à une migration antérieure<a class="headerlink" href="#revenir-a-une-migration-anterieure" title="Permanent link">¶</a></h2>
|
|
<p>Lorsque vous développez, il peut arriver que vous vouliez
|
|
revenir à une migration antérieure.
|
|
Pour cela, il suffit d'appliquer la commande <code>migrate</code>
|
|
en spécifiant le nom de la migration à laquelle vous
|
|
voulez revenir :</p>
|
|
<div class="language-bash highlight"><pre><span></span><code><span id="__span-3-1"><a id="__codelineno-3-1" name="__codelineno-3-1" href="#__codelineno-3-1"></a>python<span class="w"> </span>./manage.py<span class="w"> </span>migrate<span class="w"> </span><application><span class="w"> </span><numéro<span class="w"> </span>de<span class="w"> </span>la<span class="w"> </span>migration>
|
|
</span></code></pre></div>
|
|
<p>Par exemple, si vous voulez revenir à la migration <code>0001_initial</code>
|
|
de l'application <code>customer</code>, vous pouvez exécuter la commande suivante :</p>
|
|
<div class="language-bash highlight"><pre><span></span><code><span id="__span-4-1"><a id="__codelineno-4-1" name="__codelineno-4-1" href="#__codelineno-4-1"></a>python<span class="w"> </span>./manage.py<span class="w"> </span>migrate<span class="w"> </span>customer<span class="w"> </span><span class="m">0001</span>
|
|
</span></code></pre></div>
|
|
<h2 id="customiser-une-migration">Customiser une migration<a class="headerlink" href="#customiser-une-migration" title="Permanent link">¶</a></h2>
|
|
<p>Il peut arriver que vous ayez besoin de modifier
|
|
le fichier de migration généré par Django.
|
|
Par exemple, si vous voulez exécuter un script Python
|
|
lors de l'application de la migration.</p>
|
|
<p>Dans ce cas, vous pouvez trouver les fichiers de migration
|
|
dans le dossier <code>migrations</code> de chaque application.
|
|
Vous pouvez modifier le fichier Python correspondant
|
|
à la migration que vous voulez modifier.</p>
|
|
<p>Ajoutez l'opération que vous voulez effectuer
|
|
dans l'attribut <code>operations</code> de la classe <code>Migration</code>.</p>
|
|
<p>Par exemple :</p>
|
|
<div class="language-python highlight"><pre><span></span><code><span id="__span-5-1"><a id="__codelineno-5-1" name="__codelineno-5-1" href="#__codelineno-5-1"></a><span class="kn">from</span> <span class="nn">django.db</span> <span class="kn">import</span> <span class="n">migrations</span>
|
|
</span><span id="__span-5-2"><a id="__codelineno-5-2" name="__codelineno-5-2" href="#__codelineno-5-2"></a>
|
|
</span><span id="__span-5-3"><a id="__codelineno-5-3" name="__codelineno-5-3" href="#__codelineno-5-3"></a><span class="k">def</span> <span class="nf">forwards_func</span><span class="p">(</span><span class="n">apps</span><span class="p">,</span> <span class="n">schema_editor</span><span class="p">):</span>
|
|
</span><span id="__span-5-4"><a id="__codelineno-5-4" name="__codelineno-5-4" href="#__codelineno-5-4"></a> <span class="nb">print</span><span class="p">(</span><span class="s2">"Appplication de la migration"</span><span class="p">)</span>
|
|
</span><span id="__span-5-5"><a id="__codelineno-5-5" name="__codelineno-5-5" href="#__codelineno-5-5"></a>
|
|
</span><span id="__span-5-6"><a id="__codelineno-5-6" name="__codelineno-5-6" href="#__codelineno-5-6"></a><span class="k">def</span> <span class="nf">reverse_func</span><span class="p">(</span><span class="n">apps</span><span class="p">,</span> <span class="n">schema_editor</span><span class="p">):</span>
|
|
</span><span id="__span-5-7"><a id="__codelineno-5-7" name="__codelineno-5-7" href="#__codelineno-5-7"></a> <span class="nb">print</span><span class="p">(</span><span class="s2">"Annulation de la migration"</span><span class="p">)</span>
|
|
</span><span id="__span-5-8"><a id="__codelineno-5-8" name="__codelineno-5-8" href="#__codelineno-5-8"></a>
|
|
</span><span id="__span-5-9"><a id="__codelineno-5-9" name="__codelineno-5-9" href="#__codelineno-5-9"></a><span class="k">class</span> <span class="nc">Migration</span><span class="p">(</span><span class="n">migrations</span><span class="o">.</span><span class="n">Migration</span><span class="p">):</span>
|
|
</span><span id="__span-5-10"><a id="__codelineno-5-10" name="__codelineno-5-10" href="#__codelineno-5-10"></a>
|
|
</span><span id="__span-5-11"><a id="__codelineno-5-11" name="__codelineno-5-11" href="#__codelineno-5-11"></a> <span class="n">dependencies</span> <span class="o">=</span> <span class="p">[]</span>
|
|
</span><span id="__span-5-12"><a id="__codelineno-5-12" name="__codelineno-5-12" href="#__codelineno-5-12"></a>
|
|
</span><span id="__span-5-13"><a id="__codelineno-5-13" name="__codelineno-5-13" href="#__codelineno-5-13"></a> <span class="n">operations</span> <span class="o">=</span> <span class="p">[</span>
|
|
</span><span id="__span-5-14"><a id="__codelineno-5-14" name="__codelineno-5-14" href="#__codelineno-5-14"></a> <span class="n">migrations</span><span class="o">.</span><span class="n">RunPython</span><span class="p">(</span><span class="n">forwards_func</span><span class="p">,</span> <span class="n">reverse_func</span><span class="p">),</span>
|
|
</span><span id="__span-5-15"><a id="__codelineno-5-15" name="__codelineno-5-15" href="#__codelineno-5-15"></a> <span class="p">]</span>
|
|
</span></code></pre></div>
|
|
<div class="admonition warning">
|
|
<p class="admonition-title">Script d'annulation de la migration</p>
|
|
<p>Lorsque vous incluez un script Python dans une migration,
|
|
incluez toujours aussi un script d'annulation,
|
|
sinon Django ne pourra pas annuler la migration
|
|
après son application.</p>
|
|
<p>Vous ne pourrez donc pas revenir à un état antérieur
|
|
de la db, à moins de la recréer de zéro.</p>
|
|
</div>
|
|
<h2 id="fusionner-des-migrations">Fusionner des migrations<a class="headerlink" href="#fusionner-des-migrations" title="Permanent link">¶</a></h2>
|
|
<p>Quand on travaille sur une fonctionnalité
|
|
qui nécessite une modification de la base de données,
|
|
les fichiers de migration sont comme toute chose :
|
|
on peut se rendre compte que les changements
|
|
apportés pourraient être meilleurs.</p>
|
|
<p>Par exemple, supposons que nous voulons créer un modèle
|
|
représentant une UE suivie par un étudiant
|
|
(ne demandez pas pourquoi on voudrait faire ça,
|
|
c'est juste pour l'exemple).
|
|
Un tel modèle aurait besoin des informations suivantes :</p>
|
|
<ul>
|
|
<li>l'utilisateur</li>
|
|
<li>le code de l'UE</li>
|
|
</ul>
|
|
<p>On écrirait donc, dans l'application <code>pedagogy</code> :
|
|
<div class="language-python highlight"><pre><span></span><code><span id="__span-6-1"><a id="__codelineno-6-1" name="__codelineno-6-1" href="#__codelineno-6-1"></a><span class="kn">from</span> <span class="nn">django.db</span> <span class="kn">import</span> <span class="n">models</span>
|
|
</span><span id="__span-6-2"><a id="__codelineno-6-2" name="__codelineno-6-2" href="#__codelineno-6-2"></a><span class="kn">from</span> <span class="nn">core.models</span> <span class="kn">import</span> <span class="n">User</span>
|
|
</span><span id="__span-6-3"><a id="__codelineno-6-3" name="__codelineno-6-3" href="#__codelineno-6-3"></a>
|
|
</span><span id="__span-6-4"><a id="__codelineno-6-4" name="__codelineno-6-4" href="#__codelineno-6-4"></a><span class="k">class</span> <span class="nc">UserUe</span><span class="p">(</span><span class="n">models</span><span class="o">.</span><span class="n">Model</span><span class="p">):</span>
|
|
</span><span id="__span-6-5"><a id="__codelineno-6-5" name="__codelineno-6-5" href="#__codelineno-6-5"></a> <span class="n">user</span> <span class="o">=</span> <span class="n">models</span><span class="o">.</span><span class="n">ForeignKey</span><span class="p">(</span><span class="n">User</span><span class="p">,</span> <span class="n">on_delete</span><span class="o">=</span><span class="n">models</span><span class="o">.</span><span class="n">CASCADE</span><span class="p">)</span>
|
|
</span><span id="__span-6-6"><a id="__codelineno-6-6" name="__codelineno-6-6" href="#__codelineno-6-6"></a> <span class="n">ue</span> <span class="o">=</span> <span class="n">models</span><span class="o">.</span><span class="n">CharField</span><span class="p">(</span><span class="n">max_length</span><span class="o">=</span><span class="mi">10</span><span class="p">)</span>
|
|
</span></code></pre></div></p>
|
|
<p>Et nous aurions le fichier de migration suivant :
|
|
<div class="language-python highlight"><pre><span></span><code><span id="__span-7-1"><a id="__codelineno-7-1" name="__codelineno-7-1" href="#__codelineno-7-1"></a><span class="kn">from</span> <span class="nn">django.db</span> <span class="kn">import</span> <span class="n">migrations</span><span class="p">,</span> <span class="n">models</span>
|
|
</span><span id="__span-7-2"><a id="__codelineno-7-2" name="__codelineno-7-2" href="#__codelineno-7-2"></a><span class="kn">from</span> <span class="nn">django.conf</span> <span class="kn">import</span> <span class="n">settings</span>
|
|
</span><span id="__span-7-3"><a id="__codelineno-7-3" name="__codelineno-7-3" href="#__codelineno-7-3"></a>
|
|
</span><span id="__span-7-4"><a id="__codelineno-7-4" name="__codelineno-7-4" href="#__codelineno-7-4"></a><span class="k">class</span> <span class="nc">Migration</span><span class="p">(</span><span class="n">migrations</span><span class="o">.</span><span class="n">Migration</span><span class="p">):</span>
|
|
</span><span id="__span-7-5"><a id="__codelineno-7-5" name="__codelineno-7-5" href="#__codelineno-7-5"></a> <span class="n">dependencies</span> <span class="o">=</span> <span class="p">[</span>
|
|
</span><span id="__span-7-6"><a id="__codelineno-7-6" name="__codelineno-7-6" href="#__codelineno-7-6"></a> <span class="n">migrations</span><span class="o">.</span><span class="n">swappable_dependency</span><span class="p">(</span><span class="n">settings</span><span class="o">.</span><span class="n">AUTH_USER_MODEL</span><span class="p">),</span>
|
|
</span><span id="__span-7-7"><a id="__codelineno-7-7" name="__codelineno-7-7" href="#__codelineno-7-7"></a> <span class="p">(</span><span class="s2">"pedagogy"</span><span class="p">,</span> <span class="s2">"0003_alter_uv_language"</span><span class="p">),</span>
|
|
</span><span id="__span-7-8"><a id="__codelineno-7-8" name="__codelineno-7-8" href="#__codelineno-7-8"></a> <span class="p">]</span>
|
|
</span><span id="__span-7-9"><a id="__codelineno-7-9" name="__codelineno-7-9" href="#__codelineno-7-9"></a>
|
|
</span><span id="__span-7-10"><a id="__codelineno-7-10" name="__codelineno-7-10" href="#__codelineno-7-10"></a> <span class="n">operations</span> <span class="o">=</span> <span class="p">[</span>
|
|
</span><span id="__span-7-11"><a id="__codelineno-7-11" name="__codelineno-7-11" href="#__codelineno-7-11"></a> <span class="n">migrations</span><span class="o">.</span><span class="n">CreateModel</span><span class="p">(</span>
|
|
</span><span id="__span-7-12"><a id="__codelineno-7-12" name="__codelineno-7-12" href="#__codelineno-7-12"></a> <span class="n">name</span><span class="o">=</span><span class="s2">"UserUe"</span><span class="p">,</span>
|
|
</span><span id="__span-7-13"><a id="__codelineno-7-13" name="__codelineno-7-13" href="#__codelineno-7-13"></a> <span class="n">fields</span><span class="o">=</span><span class="p">[</span>
|
|
</span><span id="__span-7-14"><a id="__codelineno-7-14" name="__codelineno-7-14" href="#__codelineno-7-14"></a> <span class="p">(</span>
|
|
</span><span id="__span-7-15"><a id="__codelineno-7-15" name="__codelineno-7-15" href="#__codelineno-7-15"></a> <span class="s2">"id"</span><span class="p">,</span>
|
|
</span><span id="__span-7-16"><a id="__codelineno-7-16" name="__codelineno-7-16" href="#__codelineno-7-16"></a> <span class="n">models</span><span class="o">.</span><span class="n">AutoField</span><span class="p">(</span>
|
|
</span><span id="__span-7-17"><a id="__codelineno-7-17" name="__codelineno-7-17" href="#__codelineno-7-17"></a> <span class="n">auto_created</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span>
|
|
</span><span id="__span-7-18"><a id="__codelineno-7-18" name="__codelineno-7-18" href="#__codelineno-7-18"></a> <span class="n">primary_key</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span>
|
|
</span><span id="__span-7-19"><a id="__codelineno-7-19" name="__codelineno-7-19" href="#__codelineno-7-19"></a> <span class="n">serialize</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span>
|
|
</span><span id="__span-7-20"><a id="__codelineno-7-20" name="__codelineno-7-20" href="#__codelineno-7-20"></a> <span class="n">verbose_name</span><span class="o">=</span><span class="s2">"ID"</span><span class="p">,</span>
|
|
</span><span id="__span-7-21"><a id="__codelineno-7-21" name="__codelineno-7-21" href="#__codelineno-7-21"></a> <span class="p">),</span>
|
|
</span><span id="__span-7-22"><a id="__codelineno-7-22" name="__codelineno-7-22" href="#__codelineno-7-22"></a> <span class="p">),</span>
|
|
</span><span id="__span-7-23"><a id="__codelineno-7-23" name="__codelineno-7-23" href="#__codelineno-7-23"></a> <span class="p">(</span><span class="s2">"ue"</span><span class="p">,</span> <span class="n">models</span><span class="o">.</span><span class="n">CharField</span><span class="p">(</span><span class="n">max_length</span><span class="o">=</span><span class="mi">10</span><span class="p">)),</span>
|
|
</span><span id="__span-7-24"><a id="__codelineno-7-24" name="__codelineno-7-24" href="#__codelineno-7-24"></a> <span class="p">(</span>
|
|
</span><span id="__span-7-25"><a id="__codelineno-7-25" name="__codelineno-7-25" href="#__codelineno-7-25"></a> <span class="s2">"user"</span><span class="p">,</span>
|
|
</span><span id="__span-7-26"><a id="__codelineno-7-26" name="__codelineno-7-26" href="#__codelineno-7-26"></a> <span class="n">models</span><span class="o">.</span><span class="n">ForeignKey</span><span class="p">(</span>
|
|
</span><span id="__span-7-27"><a id="__codelineno-7-27" name="__codelineno-7-27" href="#__codelineno-7-27"></a> <span class="n">on_delete</span><span class="o">=</span><span class="n">models</span><span class="o">.</span><span class="n">deletion</span><span class="o">.</span><span class="n">CASCADE</span><span class="p">,</span>
|
|
</span><span id="__span-7-28"><a id="__codelineno-7-28" name="__codelineno-7-28" href="#__codelineno-7-28"></a> <span class="n">to</span><span class="o">=</span><span class="n">settings</span><span class="o">.</span><span class="n">AUTH_USER_MODEL</span><span class="p">,</span>
|
|
</span><span id="__span-7-29"><a id="__codelineno-7-29" name="__codelineno-7-29" href="#__codelineno-7-29"></a> <span class="p">),</span>
|
|
</span><span id="__span-7-30"><a id="__codelineno-7-30" name="__codelineno-7-30" href="#__codelineno-7-30"></a> <span class="p">),</span>
|
|
</span><span id="__span-7-31"><a id="__codelineno-7-31" name="__codelineno-7-31" href="#__codelineno-7-31"></a> <span class="p">],</span>
|
|
</span><span id="__span-7-32"><a id="__codelineno-7-32" name="__codelineno-7-32" href="#__codelineno-7-32"></a> <span class="p">),</span>
|
|
</span><span id="__span-7-33"><a id="__codelineno-7-33" name="__codelineno-7-33" href="#__codelineno-7-33"></a> <span class="p">]</span>
|
|
</span></code></pre></div></p>
|
|
<p>On finit son travail, on soumet la PR.
|
|
Mais là, quelqu'un fait remarquer qu'il existe déjà
|
|
un modèle pour représenter une UE.
|
|
On modifie donc le modèle :</p>
|
|
<div class="language-python highlight"><pre><span></span><code><span id="__span-8-1"><a id="__codelineno-8-1" name="__codelineno-8-1" href="#__codelineno-8-1"></a><span class="kn">from</span> <span class="nn">django.db</span> <span class="kn">import</span> <span class="n">models</span>
|
|
</span><span id="__span-8-2"><a id="__codelineno-8-2" name="__codelineno-8-2" href="#__codelineno-8-2"></a><span class="kn">from</span> <span class="nn">core.models</span> <span class="kn">import</span> <span class="n">User</span>
|
|
</span><span id="__span-8-3"><a id="__codelineno-8-3" name="__codelineno-8-3" href="#__codelineno-8-3"></a><span class="kn">from</span> <span class="nn">pedagogy.models</span> <span class="kn">import</span> <span class="n">UV</span>
|
|
</span><span id="__span-8-4"><a id="__codelineno-8-4" name="__codelineno-8-4" href="#__codelineno-8-4"></a>
|
|
</span><span id="__span-8-5"><a id="__codelineno-8-5" name="__codelineno-8-5" href="#__codelineno-8-5"></a><span class="k">class</span> <span class="nc">UserUe</span><span class="p">(</span><span class="n">models</span><span class="o">.</span><span class="n">Model</span><span class="p">):</span>
|
|
</span><span id="__span-8-6"><a id="__codelineno-8-6" name="__codelineno-8-6" href="#__codelineno-8-6"></a> <span class="n">user</span> <span class="o">=</span> <span class="n">models</span><span class="o">.</span><span class="n">ForeignKey</span><span class="p">(</span><span class="n">User</span><span class="p">,</span> <span class="n">on_delete</span><span class="o">=</span><span class="n">models</span><span class="o">.</span><span class="n">CASCADE</span><span class="p">)</span>
|
|
</span><span id="__span-8-7"><a id="__codelineno-8-7" name="__codelineno-8-7" href="#__codelineno-8-7"></a> <span class="n">ue</span> <span class="o">=</span> <span class="n">models</span><span class="o">.</span><span class="n">ForeignKey</span><span class="p">(</span><span class="n">UV</span><span class="p">,</span> <span class="n">on_delete</span><span class="o">=</span><span class="n">models</span><span class="o">.</span><span class="n">CASCADE</span><span class="p">)</span>
|
|
</span></code></pre></div>
|
|
<p>On refait la commande <code>makemigrations</code> et on obtient :
|
|
<div class="language-python highlight"><pre><span></span><code><span id="__span-9-1"><a id="__codelineno-9-1" name="__codelineno-9-1" href="#__codelineno-9-1"></a><span class="kn">from</span> <span class="nn">django.db</span> <span class="kn">import</span> <span class="n">migrations</span><span class="p">,</span> <span class="n">models</span>
|
|
</span><span id="__span-9-2"><a id="__codelineno-9-2" name="__codelineno-9-2" href="#__codelineno-9-2"></a>
|
|
</span><span id="__span-9-3"><a id="__codelineno-9-3" name="__codelineno-9-3" href="#__codelineno-9-3"></a>
|
|
</span><span id="__span-9-4"><a id="__codelineno-9-4" name="__codelineno-9-4" href="#__codelineno-9-4"></a><span class="k">class</span> <span class="nc">Migration</span><span class="p">(</span><span class="n">migrations</span><span class="o">.</span><span class="n">Migration</span><span class="p">):</span>
|
|
</span><span id="__span-9-5"><a id="__codelineno-9-5" name="__codelineno-9-5" href="#__codelineno-9-5"></a> <span class="n">dependencies</span> <span class="o">=</span> <span class="p">[</span>
|
|
</span><span id="__span-9-6"><a id="__codelineno-9-6" name="__codelineno-9-6" href="#__codelineno-9-6"></a> <span class="p">(</span><span class="s2">"pedagogy"</span><span class="p">,</span> <span class="s2">"0004_userue"</span><span class="p">),</span>
|
|
</span><span id="__span-9-7"><a id="__codelineno-9-7" name="__codelineno-9-7" href="#__codelineno-9-7"></a> <span class="p">]</span>
|
|
</span><span id="__span-9-8"><a id="__codelineno-9-8" name="__codelineno-9-8" href="#__codelineno-9-8"></a>
|
|
</span><span id="__span-9-9"><a id="__codelineno-9-9" name="__codelineno-9-9" href="#__codelineno-9-9"></a> <span class="n">operations</span> <span class="o">=</span> <span class="p">[</span>
|
|
</span><span id="__span-9-10"><a id="__codelineno-9-10" name="__codelineno-9-10" href="#__codelineno-9-10"></a> <span class="n">migrations</span><span class="o">.</span><span class="n">AlterField</span><span class="p">(</span>
|
|
</span><span id="__span-9-11"><a id="__codelineno-9-11" name="__codelineno-9-11" href="#__codelineno-9-11"></a> <span class="n">model_name</span><span class="o">=</span><span class="s2">"userue"</span><span class="p">,</span>
|
|
</span><span id="__span-9-12"><a id="__codelineno-9-12" name="__codelineno-9-12" href="#__codelineno-9-12"></a> <span class="n">name</span><span class="o">=</span><span class="s2">"ue"</span><span class="p">,</span>
|
|
</span><span id="__span-9-13"><a id="__codelineno-9-13" name="__codelineno-9-13" href="#__codelineno-9-13"></a> <span class="n">field</span><span class="o">=</span><span class="n">models</span><span class="o">.</span><span class="n">ForeignKey</span><span class="p">(</span>
|
|
</span><span id="__span-9-14"><a id="__codelineno-9-14" name="__codelineno-9-14" href="#__codelineno-9-14"></a> <span class="n">on_delete</span><span class="o">=</span><span class="n">models</span><span class="o">.</span><span class="n">deletion</span><span class="o">.</span><span class="n">CASCADE</span><span class="p">,</span> <span class="n">to</span><span class="o">=</span><span class="s2">"pedagogy.uv"</span>
|
|
</span><span id="__span-9-15"><a id="__codelineno-9-15" name="__codelineno-9-15" href="#__codelineno-9-15"></a> <span class="p">),</span>
|
|
</span><span id="__span-9-16"><a id="__codelineno-9-16" name="__codelineno-9-16" href="#__codelineno-9-16"></a> <span class="p">),</span>
|
|
</span><span id="__span-9-17"><a id="__codelineno-9-17" name="__codelineno-9-17" href="#__codelineno-9-17"></a> <span class="p">]</span>
|
|
</span></code></pre></div></p>
|
|
<p>Sauf que maintenant, nous avons deux fichiers de migration,
|
|
alors qu'en réalité, on ne souhaite faire qu'une seule migration,
|
|
une fois qu'on aura expédié le code en prod.
|
|
Certes, ça fonctionnerait d'appliquer les deux, mais ça pose
|
|
un problème d'encombrement.</p>
|
|
<p>Plus il y a de fichiers de migrations, plus il y a de migrations
|
|
à résoudre au moment de l'installation du projet chez quelqu'un,
|
|
plus c'est embêtant à gérer et plus Django prendra du temps
|
|
à résoudre les migrations.</p>
|
|
<p>C'est pourquoi il est bon de respecter le principe :
|
|
une PR = un fichier de migration maximum par application.</p>
|
|
<p>Nous voulons donc fusionner les deux, pour n'en garder qu'une.
|
|
Pour ça, deux manières de procéder :</p>
|
|
<ul>
|
|
<li>le faire à la main</li>
|
|
<li>utiliser la commande squashmigrations</li>
|
|
</ul>
|
|
<p>Pour la méthode manuelle, on ne pourrait pas vous dire exhaustivement
|
|
comment faire.
|
|
Mais ne vous inquiétez pas, ce n'est pas très dur.
|
|
Regardez bien quelles sont les instructions utilisées par django
|
|
pour les opérations de migrations,
|
|
et avec un peu d'astuce et quelques copier-coller,
|
|
vous vous en sortirez comme des chefs.</p>
|
|
<p>Pour la méthode <code>squashmigrations</code>, exécutez la commande </p>
|
|
<div class="language-bash highlight"><pre><span></span><code><span id="__span-10-1"><a id="__codelineno-10-1" name="__codelineno-10-1" href="#__codelineno-10-1"></a>python<span class="w"> </span>./manage.py<span class="w"> </span>squasmigrations<span class="w"> </span><app><span class="w"> </span><migration<span class="w"> </span>de<span class="w"> </span>début<span class="w"> </span><span class="o">(</span>incluse<span class="o">)</span>><span class="w"> </span><migration<span class="w"> </span>de<span class="w"> </span>fin<span class="w"> </span><span class="o">(</span>incluse<span class="o">)</span>><span class="w"> </span>
|
|
</span></code></pre></div>
|
|
<p>Par exemple, dans notre cas, ça donnera :</p>
|
|
<div class="language-bash highlight"><pre><span></span><code><span id="__span-11-1"><a id="__codelineno-11-1" name="__codelineno-11-1" href="#__codelineno-11-1"></a>python<span class="w"> </span>./manage.py<span class="w"> </span>squasmigrations<span class="w"> </span>pedagogy<span class="w"> </span><span class="m">0004</span><span class="w"> </span><span class="m">0005</span><span class="w"> </span>
|
|
</span></code></pre></div>
|
|
<p>La commande vous donnera ceci :
|
|
<div class="language-python highlight"><pre><span></span><code><span id="__span-12-1"><a id="__codelineno-12-1" name="__codelineno-12-1" href="#__codelineno-12-1"></a><span class="kn">from</span> <span class="nn">django.conf</span> <span class="kn">import</span> <span class="n">settings</span>
|
|
</span><span id="__span-12-2"><a id="__codelineno-12-2" name="__codelineno-12-2" href="#__codelineno-12-2"></a><span class="kn">from</span> <span class="nn">django.db</span> <span class="kn">import</span> <span class="n">migrations</span><span class="p">,</span> <span class="n">models</span>
|
|
</span><span id="__span-12-3"><a id="__codelineno-12-3" name="__codelineno-12-3" href="#__codelineno-12-3"></a>
|
|
</span><span id="__span-12-4"><a id="__codelineno-12-4" name="__codelineno-12-4" href="#__codelineno-12-4"></a><span class="k">class</span> <span class="nc">Migration</span><span class="p">(</span><span class="n">migrations</span><span class="o">.</span><span class="n">Migration</span><span class="p">):</span>
|
|
</span><span id="__span-12-5"><a id="__codelineno-12-5" name="__codelineno-12-5" href="#__codelineno-12-5"></a> <span class="n">replaces</span> <span class="o">=</span> <span class="p">[(</span><span class="s2">"pedagogy"</span><span class="p">,</span> <span class="s2">"0004_userue"</span><span class="p">),</span> <span class="p">(</span><span class="s2">"pedagogy"</span><span class="p">,</span> <span class="s2">"0005_alter_userue_ue"</span><span class="p">)]</span>
|
|
</span><span id="__span-12-6"><a id="__codelineno-12-6" name="__codelineno-12-6" href="#__codelineno-12-6"></a>
|
|
</span><span id="__span-12-7"><a id="__codelineno-12-7" name="__codelineno-12-7" href="#__codelineno-12-7"></a> <span class="n">dependencies</span> <span class="o">=</span> <span class="p">[</span>
|
|
</span><span id="__span-12-8"><a id="__codelineno-12-8" name="__codelineno-12-8" href="#__codelineno-12-8"></a> <span class="p">(</span><span class="s2">"pedagogy"</span><span class="p">,</span> <span class="s2">"0003_alter_uv_language"</span><span class="p">),</span>
|
|
</span><span id="__span-12-9"><a id="__codelineno-12-9" name="__codelineno-12-9" href="#__codelineno-12-9"></a> <span class="n">migrations</span><span class="o">.</span><span class="n">swappable_dependency</span><span class="p">(</span><span class="n">settings</span><span class="o">.</span><span class="n">AUTH_USER_MODEL</span><span class="p">),</span>
|
|
</span><span id="__span-12-10"><a id="__codelineno-12-10" name="__codelineno-12-10" href="#__codelineno-12-10"></a> <span class="p">]</span>
|
|
</span><span id="__span-12-11"><a id="__codelineno-12-11" name="__codelineno-12-11" href="#__codelineno-12-11"></a>
|
|
</span><span id="__span-12-12"><a id="__codelineno-12-12" name="__codelineno-12-12" href="#__codelineno-12-12"></a> <span class="n">operations</span> <span class="o">=</span> <span class="p">[</span>
|
|
</span><span id="__span-12-13"><a id="__codelineno-12-13" name="__codelineno-12-13" href="#__codelineno-12-13"></a> <span class="n">migrations</span><span class="o">.</span><span class="n">CreateModel</span><span class="p">(</span>
|
|
</span><span id="__span-12-14"><a id="__codelineno-12-14" name="__codelineno-12-14" href="#__codelineno-12-14"></a> <span class="n">name</span><span class="o">=</span><span class="s2">"UserUe"</span><span class="p">,</span>
|
|
</span><span id="__span-12-15"><a id="__codelineno-12-15" name="__codelineno-12-15" href="#__codelineno-12-15"></a> <span class="n">fields</span><span class="o">=</span><span class="p">[</span>
|
|
</span><span id="__span-12-16"><a id="__codelineno-12-16" name="__codelineno-12-16" href="#__codelineno-12-16"></a> <span class="p">(</span>
|
|
</span><span id="__span-12-17"><a id="__codelineno-12-17" name="__codelineno-12-17" href="#__codelineno-12-17"></a> <span class="s2">"id"</span><span class="p">,</span>
|
|
</span><span id="__span-12-18"><a id="__codelineno-12-18" name="__codelineno-12-18" href="#__codelineno-12-18"></a> <span class="n">models</span><span class="o">.</span><span class="n">AutoField</span><span class="p">(</span>
|
|
</span><span id="__span-12-19"><a id="__codelineno-12-19" name="__codelineno-12-19" href="#__codelineno-12-19"></a> <span class="n">auto_created</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span>
|
|
</span><span id="__span-12-20"><a id="__codelineno-12-20" name="__codelineno-12-20" href="#__codelineno-12-20"></a> <span class="n">primary_key</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span>
|
|
</span><span id="__span-12-21"><a id="__codelineno-12-21" name="__codelineno-12-21" href="#__codelineno-12-21"></a> <span class="n">serialize</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span>
|
|
</span><span id="__span-12-22"><a id="__codelineno-12-22" name="__codelineno-12-22" href="#__codelineno-12-22"></a> <span class="n">verbose_name</span><span class="o">=</span><span class="s2">"ID"</span><span class="p">,</span>
|
|
</span><span id="__span-12-23"><a id="__codelineno-12-23" name="__codelineno-12-23" href="#__codelineno-12-23"></a> <span class="p">),</span>
|
|
</span><span id="__span-12-24"><a id="__codelineno-12-24" name="__codelineno-12-24" href="#__codelineno-12-24"></a> <span class="p">),</span>
|
|
</span><span id="__span-12-25"><a id="__codelineno-12-25" name="__codelineno-12-25" href="#__codelineno-12-25"></a> <span class="p">(</span>
|
|
</span><span id="__span-12-26"><a id="__codelineno-12-26" name="__codelineno-12-26" href="#__codelineno-12-26"></a> <span class="s2">"ue"</span><span class="p">,</span>
|
|
</span><span id="__span-12-27"><a id="__codelineno-12-27" name="__codelineno-12-27" href="#__codelineno-12-27"></a> <span class="n">models</span><span class="o">.</span><span class="n">ForeignKey</span><span class="p">(</span>
|
|
</span><span id="__span-12-28"><a id="__codelineno-12-28" name="__codelineno-12-28" href="#__codelineno-12-28"></a> <span class="n">on_delete</span><span class="o">=</span><span class="n">models</span><span class="o">.</span><span class="n">deletion</span><span class="o">.</span><span class="n">CASCADE</span><span class="p">,</span> <span class="n">to</span><span class="o">=</span><span class="s2">"pedagogy.uv"</span>
|
|
</span><span id="__span-12-29"><a id="__codelineno-12-29" name="__codelineno-12-29" href="#__codelineno-12-29"></a> <span class="p">),</span>
|
|
</span><span id="__span-12-30"><a id="__codelineno-12-30" name="__codelineno-12-30" href="#__codelineno-12-30"></a> <span class="p">),</span>
|
|
</span><span id="__span-12-31"><a id="__codelineno-12-31" name="__codelineno-12-31" href="#__codelineno-12-31"></a> <span class="p">(</span>
|
|
</span><span id="__span-12-32"><a id="__codelineno-12-32" name="__codelineno-12-32" href="#__codelineno-12-32"></a> <span class="s2">"user"</span><span class="p">,</span>
|
|
</span><span id="__span-12-33"><a id="__codelineno-12-33" name="__codelineno-12-33" href="#__codelineno-12-33"></a> <span class="n">models</span><span class="o">.</span><span class="n">ForeignKey</span><span class="p">(</span>
|
|
</span><span id="__span-12-34"><a id="__codelineno-12-34" name="__codelineno-12-34" href="#__codelineno-12-34"></a> <span class="n">on_delete</span><span class="o">=</span><span class="n">models</span><span class="o">.</span><span class="n">deletion</span><span class="o">.</span><span class="n">CASCADE</span><span class="p">,</span>
|
|
</span><span id="__span-12-35"><a id="__codelineno-12-35" name="__codelineno-12-35" href="#__codelineno-12-35"></a> <span class="n">to</span><span class="o">=</span><span class="n">settings</span><span class="o">.</span><span class="n">AUTH_USER_MODEL</span><span class="p">,</span>
|
|
</span><span id="__span-12-36"><a id="__codelineno-12-36" name="__codelineno-12-36" href="#__codelineno-12-36"></a> <span class="p">),</span>
|
|
</span><span id="__span-12-37"><a id="__codelineno-12-37" name="__codelineno-12-37" href="#__codelineno-12-37"></a> <span class="p">),</span>
|
|
</span><span id="__span-12-38"><a id="__codelineno-12-38" name="__codelineno-12-38" href="#__codelineno-12-38"></a> <span class="p">],</span>
|
|
</span><span id="__span-12-39"><a id="__codelineno-12-39" name="__codelineno-12-39" href="#__codelineno-12-39"></a> <span class="p">),</span>
|
|
</span><span id="__span-12-40"><a id="__codelineno-12-40" name="__codelineno-12-40" href="#__codelineno-12-40"></a> <span class="p">]</span>
|
|
</span></code></pre></div></p>
|
|
<p>Vous pouvez alors supprimer les deux autres fichiers.</p>
|
|
<p>Vous remarquerez peut-être la présence de la ligne suivante :
|
|
<div class="language-python highlight"><pre><span></span><code><span id="__span-13-1"><a id="__codelineno-13-1" name="__codelineno-13-1" href="#__codelineno-13-1"></a><span class="n">replaces</span> <span class="o">=</span> <span class="p">[(</span><span class="s2">"pedagogy"</span><span class="p">,</span> <span class="s2">"0004_userue"</span><span class="p">),</span> <span class="p">(</span><span class="s2">"pedagogy"</span><span class="p">,</span> <span class="s2">"0005_alter_userue_ue"</span><span class="p">)]</span>
|
|
</span></code></pre></div></p>
|
|
<p>Cela sert à dire que cette migration doit être appliquée
|
|
à la place des deux autres.
|
|
Une fois que vous aurez supprimé les deux fichiers,
|
|
supprimez également cette ligne.</p>
|
|
<div class="admonition warning">
|
|
<p class="admonition-title">Warning</p>
|
|
<p>Django sait quelles migrations ont été appliquées,
|
|
en les stockant dans une table de la db.
|
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Si une migration est enregistrée en db, sans que le fichier
|
|
de migration correspondant existe,
|
|
la commande <code>migrate</code> échoue.</p>
|
|
<p>Quand vous faites un <code>squashmigrations</code>,
|
|
pensez donc à appliquer la commande <code>migrate</code>
|
|
juste après (mais avant la suppression des anciens fichiers),
|
|
pour que Django supprime de la base de données
|
|
les migrations devenues inutiles.</p>
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