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Merge pull request #782 from ae-utbm/ajax-navigation-history
Ajax navigation history in uv guide
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commit
68d0a16d1c
@ -74,6 +74,7 @@ const initialUrlParams = new URLSearchParams(window.location.search);
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* @enum {number}
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*/
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const History = {
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NONE: 0,
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PUSH: 1,
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REPLACE: 2,
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};
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@ -82,9 +83,12 @@ const History = {
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* @param {string} key
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* @param {string | string[] | null} value
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* @param {History} action
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* @param {URL | null} url
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*/
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function update_query_string(key, value, action = History.REPLACE) {
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const url = new URL(window.location.href);
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function update_query_string(key, value, action = History.REPLACE, url = null) {
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if (!url){
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url = new URL(window.location.href);
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}
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if (!value) {
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// If the value is null, undefined or empty => delete it
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url.searchParams.delete(key)
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@ -96,8 +100,10 @@ function update_query_string(key, value, action = History.REPLACE) {
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}
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if (action === History.PUSH) {
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history.pushState(null, document.title, url.toString());
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history.pushState(null, "", url.toString());
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} else if (action === History.REPLACE) {
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history.replaceState(null, document.title, url.toString());
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history.replaceState(null, "", url.toString());
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}
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return url;
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}
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@ -116,6 +116,46 @@
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{% endif %}
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{% endmacro %}
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{% macro paginate_alpine(page, nb_pages) %}
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{# Add pagination buttons for ajax based content with alpine
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Notes:
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This can only be used in the scope of your alpine datastore
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Notes:
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You might need to listen to the "popstate" event in your code
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to update the current page you are on when the user goes back in
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it's browser history with the back arrow
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Parameters:
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page (str): name of the alpine page variable in your datastore
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nb_page (str): call to a javascript function or variable returning
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the maximum number of pages to paginate
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#}
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<nav class="pagination" x-show="{{ nb_pages }} > 1">
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{# Adding the prevent here is important, because otherwise,
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clicking on the pagination buttons could submit the picture management form
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and reload the page #}
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<button
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@click.prevent="{{ page }}--"
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:disabled="{{ page }} <= 1"
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@keyup.right.window="{{ page }} = Math.min({{ nb_pages }}, {{ page }} + 1)"
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>
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<i class="fa fa-caret-left"></i>
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</button>
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<template x-for="i in {{ nb_pages }}">
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<button x-text="i" @click.prevent="{{ page }} = i" :class="{active: {{ page }} === i}"></button>
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</template>
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<button
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@click.prevent="{{ page }}++"
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:disabled="{{ page }} >= {{ nb_pages }}"
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@keyup.left.window="{{ page }} = Math.max(1, {{ page }} - 1)"
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>
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<i class="fa fa-caret-right"></i>
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</button>
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</nav>
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{% endmacro %}
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{% macro paginate(page_obj, paginator, js_action) %}
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{% set js = js_action|default('') %}
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{% if page_obj.has_previous() or page_obj.has_next() %}
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@ -1,4 +1,5 @@
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{% extends "core/base.jinja" %}
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{% from 'core/macros.jinja' import paginate_alpine %}
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{% block title %}
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{% trans %}UV Guide{% endtrans %}
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@ -113,17 +114,7 @@
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</template>
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</tbody>
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</table>
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<nav class="pagination" x-show="max_page() > 1">
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<button @click="page--" :disabled="page <= 1">
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<i class="fa fa-caret-left"></i>
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</button>
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<template x-for="i in max_page()">
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<button x-text="i" @click="page = i" :class="(page === i) && 'active'"></button>
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</template>
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<button @click="page++" :disabled="page >= max_page()">
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<i class="fa fa-caret-right"></i>
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</button>
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</nav>
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{{ paginate_alpine("page", "max_page()") }}
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</div>
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<script>
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{#
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@ -141,36 +132,76 @@
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Alpine.data("uv_search", () => ({
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uvs: [],
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loading: false,
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page: parseInt(initialUrlParams.get("page")) || page_default,
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page_size: parseInt(initialUrlParams.get("page_size")) || page_size_default,
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search: initialUrlParams.get("search") || "",
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department: initialUrlParams.getAll("department"),
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credit_type: initialUrlParams.getAll("credit_type"),
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{# The semester is easier to use on the backend as an enum (spring/autumn/both/none)
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and easier to use on the frontend as an array ([spring, autumn]).
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Thus there is some conversion involved when both communicate together #}
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semester: initialUrlParams.has("semester") ?
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initialUrlParams.get("semester").split("_AND_") : [],
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page: page_default,
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page_size: page_size_default,
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search: "",
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department: [],
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credit_type: [],
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semester: [],
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to_change: [],
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pushstate: History.PUSH,
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update: undefined,
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async initialize_args() {
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let url = new URLSearchParams(window.location.search);
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this.pushstate = History.REPLACE;
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this.page = parseInt(url.get("page")) || page_default;;
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this.page_size = parseInt(url.get("page_size")) || page_size_default;
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this.search = url.get("search") || "";
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this.department = url.getAll("department");
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this.credit_type = url.getAll("credit_type");
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{# The semester is easier to use on the backend as an enum (spring/autumn/both/none)
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and easier to use on the frontend as an array ([spring, autumn]).
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Thus there is some conversion involved when both communicate together #}
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this.semester = url.has("semester") ?
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url.get("semester").split("_AND_") : [];
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this.update()
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},
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async init() {
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this.update = Alpine.debounce(async () => {
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{# Create the whole url before changing everything all at once #}
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let first = this.to_change.shift();
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let url = update_query_string(first.param, first.value, History.NONE);
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this.to_change.forEach((value) => {
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url = update_query_string(value.param, value.value, History.NONE, url);
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})
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update_query_string(first.param, first.value, this.pushstate, url);
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await this.fetch_data(); {# reload data on form change #}
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this.to_change = [];
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this.pushstate = History.PUSH;
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}, 50);
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let search_params = ["search", "department", "credit_type", "semester"];
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let pagination_params = ["semester", "page"];
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let pagination_params = ["page", "page_size"];
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search_params.forEach((param) => {
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this.$watch(param, async () => {
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{# Reset pagination on search #}
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this.$watch(param, async (value) => {
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if (this.pushstate != History.PUSH){
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{# This means that we are doing a mass param edit #}
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return;
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}
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{# Reset pagination on search #}
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this.page = page_default;
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this.page_size = page_size_default;
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});
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});
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search_params.concat(pagination_params).forEach((param) => {
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this.$watch(param, async (value) => {
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update_query_string(param, value);
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await this.fetch_data(); {# reload data on form change #}
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this.to_change.push({ param: param, value: value })
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this.update();
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});
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});
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await this.fetch_data(); {# load initial data #}
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window.addEventListener("popstate", async (event) => {
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await this.initialize_args();
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});
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await this.initialize_args();
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},
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async fetch_data() {
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this.loading = true;
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const url = "{{ url("api:fetch_uvs") }}" + window.location.search;
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@ -1,4 +1,5 @@
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{% extends "core/base.jinja" %}
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{% from 'core/macros.jinja' import paginate_alpine %}
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{%- block additional_css -%}
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<link rel="stylesheet" href="{{ scss('sas/album.scss') }}">
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@ -83,28 +84,7 @@
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</a>
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</template>
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</div>
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<nav class="pagination" x-show="nb_pages() > 1">
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{# Adding the prevent here is important, because otherwise,
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clicking on the pagination buttons could submit the picture management form
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and reload the page #}
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<button
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@click.prevent="page--"
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:disabled="page <= 1"
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@keyup.right.window="page = Math.min(nb_pages(), page + 1)"
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>
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<i class="fa fa-caret-left"></i>
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</button>
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<template x-for="i in nb_pages()">
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<button x-text="i" @click.prevent="page = i" :class="{active: page === i}"></button>
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</template>
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<button
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@click.prevent="page++"
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:disabled="page >= nb_pages()"
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@keyup.left.window="page = Math.max(1, page - 1)"
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>
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<i class="fa fa-caret-right"></i>
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</button>
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</nav>
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{{ paginate_alpine("page", "nb_pages()") }}
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</div>
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{% if is_sas_admin %}
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