completely ajaxify the picture page

core/models.py

@@ -991,8 +991,8 @@ class SithFile(models.Model):
             return user.is_board_member
         if user.is_com_admin:
             return True
-        if self.is_in_sas and user.is_in_group(pk=settings.SITH_GROUP_SAS_ADMIN_ID):
+        if self.is_in_sas:
-            return True
+            return user.is_in_group(pk=settings.SITH_GROUP_SAS_ADMIN_ID)
         return user.id == self.owner_id
 
     def can_be_viewed_by(self, user):

core/static/core/js/script.js

@@ -107,3 +107,35 @@ function update_query_string(key, value, action = History.REPLACE, url = null) {
 
     return url;
 }
+
+
+/**
+ * Given a paginated endpoint, fetch all the items of this endpoint,
+ * performing multiple API calls if necessary.
+ * @param {string} url The paginated endpoint to fetch
+ * @return {Promise<Object[]>}
+ */
+async function fetch_paginated(url) {
+  const max_per_page = 199;
+  const paginated_url = new URL(url, document.location.origin);
+  paginated_url.searchParams.set("page_size", max_per_page.toString());
+  paginated_url.searchParams.set("page", "1");
+
+  let first_page = (await ( await fetch(paginated_url)).json());
+  let results = first_page.results;
+
+  const nb_pictures = first_page.count
+  const nb_pages = Math.ceil(nb_pictures / max_per_page);
+
+  if (nb_pages > 1) {
+      let promises = [];
+      for (let i = 2; i <= nb_pages; i++) {
+        paginated_url.searchParams.set("page", i.toString());
+        promises.push(
+          fetch(paginated_url).then(res => res.json().then(json => json.results))
+        );
+      }
+      results.push(...await Promise.all(promises))
+  }
+  return results;
+}

core/templates/core/user_pictures.jinja

@@ -65,17 +65,29 @@
 
   {{ super() }}
   <script>
+      /**
+       * @typedef UserProfile
+       * @property {number} id
+       * @property {string} first_name
+       * @property {string} last_name
+       * @property {string} nick_name
+       * @property {string} display_name
+       * @property {string} profile_url
+       * @property {string} profile_pict
+       */
     /**
      * @typedef Picture
      * @property {number} id
      * @property {string} name
      * @property {number} size
      * @property {string} date
-     * @property {Object} author
+     * @property {UserProfile} owner
      * @property {string} full_size_url
      * @property {string} compressed_url
      * @property {string} thumb_url
      * @property {string} album
+     * @property {boolean} is_moderated
+     * @property {boolean} asked_for_removal
      */
 
     document.addEventListener("alpine:init", () => {
@@ -86,7 +98,7 @@
         albums: {},
 
         async init() {
-          this.pictures = await this.get_pictures();
+          this.pictures = await fetch_paginated("{{ url("api:pictures") }}" + "?users_identified={{ object.id }}");
           this.albums = this.pictures.reduce((acc, picture) => {
             if (!acc[picture.album]){
               acc[picture.album] = [];
@@ -97,34 +109,6 @@
           this.loading = false;
         },
 
-        /**
-         * @return {Promise<Picture[]>}
-         */
-        async get_pictures() {
-          {# The API forbids to get more than 199 items at once
-           from paginated routes.
-           In order to download all the user pictures, it may be needed
-           to performs multiple requests #}
-          const max_per_page = 199;
-          const url = "{{ url("api:pictures") }}"
-          + "?users_identified={{ object.id }}"
-          + `&page_size=${max_per_page}`;
-
-          let first_page = (await ( await fetch(url)).json());
-          let promises = [first_page.results];
-
-          const nb_pictures = first_page.count
-          const nb_pages = Math.ceil(nb_pictures / max_per_page);
-
-          for (let i = 2; i <= nb_pages; i++) {
-            promises.push(
-              fetch(url + `&page=${i}`).then(res => res.json().then(json => json.results))
-            );
-          }
-          return (await Promise.all(promises)).flat()
-        },
-
-
         async download_zip(){
           this.is_downloading = true;
           const bar = this.$refs.progress;

locale/fr/LC_MESSAGES/djangojs.po

@@ -7,7 +7,7 @@
 msgid ""
 msgstr ""
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2024-09-17 11:54+0200\n"
+"POT-Creation-Date: 2024-09-03 15:22+0200\n"
 "PO-Revision-Date: 2024-09-17 11:54+0200\n"
 "Last-Translator: Sli <antoine@bartuccio.fr>\n"
 "Language-Team: AE info <ae.info@utbm.fr>\n"
@@ -19,3 +19,6 @@ msgstr ""
 #: core/static/user/js/family_graph.js:230
 msgid "family_tree.%(extension)s"
 msgstr "arbre_genealogique.%(extension)s"
+#: sas/static/sas/js/picture.js:52
+msgid "Couldn't delete picture"
+msgstr "Echec de la suppression de la photo"

sas/api.py

@@ -9,14 +9,10 @@ from ninja_extra.permissions import IsAuthenticated
 from ninja_extra.schemas import PaginatedResponseSchema
 from pydantic import NonNegativeInt
 
-from core.api_permissions import CanView
+from core.api_permissions import CanView, IsOwner
 from core.models import Notification, User
 from sas.models import PeoplePictureRelation, Picture
-from sas.schemas import (
+from sas.schemas import IdentifiedUserSchema, PictureFilterSchema, PictureSchema
-    IdentifiedUserSchema,
-    PictureFilterSchema,
-    PictureSchema,
-)
 
 
 @api_controller("/sas/picture")
@@ -51,6 +47,7 @@ class PicturesController(ControllerBase):
             filters.filter(Picture.objects.viewable_by(user))
             .distinct()
             .order_by("-parent__date", "date")
+            .select_related("owner")
             .annotate(album=F("parent__name"))
         )
 
@@ -88,6 +85,18 @@ class PicturesController(ControllerBase):
                 },
             )
 
+    @route.delete("/{picture_id}", permissions=[IsOwner])
+    def delete_picture(self, picture_id: int):
+        self.get_object_or_exception(Picture, pk=picture_id).delete()
+
+    @route.patch("/{picture_id}/moderate", permissions=[IsOwner])
+    def moderate_picture(self, picture_id: int):
+        picture = self.get_object_or_exception(Picture, pk=picture_id)
+        picture.is_moderated = True
+        picture.moderator = self.context.request.user
+        picture.asked_for_removal = False
+        picture.save()
+
 
 @api_controller("/sas/relation", tags="User identification on SAS pictures")
 class UsersIdentifiedController(ControllerBase):

sas/schemas.py

@@ -17,8 +17,9 @@ class PictureFilterSchema(FilterSchema):
 class PictureSchema(ModelSchema):
     class Meta:
         model = Picture
-        fields = ["id", "name", "date", "size", "is_moderated"]
+        fields = ["id", "name", "date", "size", "is_moderated", "asked_for_removal"]
 
+    owner: UserProfileSchema
     full_size_url: str
     compressed_url: str
     thumb_url: str

sas/static/sas/css/picture.scss

@@ -72,44 +72,30 @@
       aspect-ratio: 16/9;
       background: #333333;
 
-      > a {
+      position: relative;
+
+      img {
+        width: 100%;
+        height: 100%;
+        object-fit: cover;
+        opacity: 70%;
+      }
+      .overlay {
+        position: absolute;
+        top: 50%;
+        left: 50%;
+        transform: translate(-50%, -50%);
+        color: white;
+        font-size: 40px;
+      }
+
+      > div {
         display: flex;
         position: relative;
         width: 100%;
         height: 100%;
-
-        > div {
-          width: 100%;
-          height: 100%;
-          display: flex;
-          justify-content: center;
-          align-items: center;
-          font-size: 30px;
-          color: white;
-
-          background-repeat: no-repeat;
-          background-position: center center;
-          background-size: cover;
-
-          &::before {
-            position: absolute;
-            width: 100%;
-            height: 100%;
-            display: flex;
-            align-items: center;
-            justify-content: center;
-            background-color: rgba(0, 0, 0, .3);
-          }
-        }
       }
     }
-
-    > #prev > a > div::before {
-      content: '←';
-    }
-    > #next > a > div::before {
-      content: '→';
-    }
   }
 
   > .tags {
@@ -304,20 +290,3 @@
     }
   }
 }
-
-.moderation {
-  box-sizing: border-box;
-  width: 100%;
-  border: 2px solid coral;
-  border-radius: 2px;
-  padding: 10px;
-  display: flex;
-  flex-direction: row;
-  justify-content: space-between;
-  align-items: center;
-
-  > div:last-child {
-    display: flex;
-    gap: 20px;
-  }
-}

sas/static/sas/js/picture.js

@@ -0,0 +1,167 @@
+/**
+ * @typedef PictureIdentification
+ * @property {number} id The actual id of the identification
+ * @property {UserProfile} user The identified user
+ */
+
+
+document.addEventListener("alpine:init", () => {
+  Alpine.data("picture_viewer", () => ({
+    /**
+     * All the pictures that can be displayed on this picture viewer
+     * @type Picture[]
+     * */
+    pictures: [],
+    /**
+     * The users identified on the currently displayed picture
+     * @type PictureIdentification[]
+     */
+    identifications: [],
+    /**
+     * The currently displayed picture
+     * @type Picture
+     * */
+    current_picture: undefined,
+    /**
+     * The picture which will be displayed next if the user press the "next" button
+     * @type ?Picture
+     * */
+    next_picture: null,
+    /**
+     * The picture which will be dispalyed next if the user press the "previous" button
+     * @type ?Picture
+     * */
+    previous_picture: null,
+    /**
+     * The select2 component used to identify users
+     */
+    selector: undefined,
+    /**
+     * true if the page is in a loading state, else false
+     */
+    loading: true,
+    /**
+     * Error message when a moderation operation fails
+     * @type string
+     */
+    moderation_error: "",
+
+    async init() {
+      this.pictures = await fetch_paginated(picture_endpoint);
+      this.selector = sithSelect2({
+        element: $(this.$refs.search),
+        data_source: remote_data_source("/api/user/search", {
+          excluded: () => [...this.identifications.map((i) => i.user.id)],
+          result_converter: (obj) => Object({ ...obj, text: obj.display_name }),
+        }),
+        picture_getter: (user) => user.profile_pict,
+      });
+      this.current_picture = this.pictures.find(
+        (i) => i.id === first_picture_id,
+      );
+      this.$watch("current_picture", () => this.update_picture());
+      await this.update_picture();
+    },
+
+    /**
+     * Update the page.
+     * Called when the `current_picture` property changes.
+     *
+     * The url is modified without reloading the page,
+     * and the previous picture, the next picture and
+     * the list of identified users are updated.
+     */
+    async update_picture() {
+      this.loading = true;
+      window.history.pushState(
+        {},
+        "",
+        `/sas/picture/${this.current_picture.id}/`,
+      );
+      this.moderation_error = "";
+      const index = this.pictures.indexOf(this.current_picture);
+      this.previous_picture = this.pictures[index - 1] || null;
+      this.next_picture = this.pictures[index + 1] || null;
+      this.identifications = await (
+        await fetch(`/api/sas/picture/${this.current_picture.id}/identified`)
+      ).json();
+      this.loading = false;
+    },
+
+    async moderate_picture() {
+      const res = await fetch(
+        `/api/sas/picture/${this.current_picture.id}/moderate`,
+        {
+          method: "PATCH",
+        },
+      );
+      if (!res.ok) {
+        this.moderation_error =
+          gettext("Couldn't moderate picture") + " : " + res.statusText;
+        return;
+      }
+      this.current_picture.is_moderated = true;
+      this.current_picture.asked_for_removal = false;
+    },
+
+    async delete_picture() {
+      const res = await fetch(`/api/sas/picture/${this.current_picture}/`, {
+        method: "DELETE",
+      });
+      if (!res.ok) {
+        this.moderation_error =
+          gettext("Couldn't delete picture") + " : " + res.statusText;
+        return;
+      }
+      this.pictures.splice(this.pictures.indexOf(this.current_picture), 1);
+      if (this.pictures.length === 0) {
+        // The deleted picture was the only one in the list.
+        // As the album is now empty, go back to the parent page
+        document.location.href = album_url;
+      }
+      this.current_picture = this.next_picture || this.previous_picture;
+    },
+
+    /**
+     * Send the identification request and update the list of identified users.
+     */
+    async submit_identification() {
+      this.loading = true;
+      const url = `/api/sas/picture/${this.current_picture.id}/identified`;
+      await fetch(url, {
+        method: "PUT",
+        body: JSON.stringify(this.selector.val().map((i) => parseInt(i))),
+      });
+      // refresh the identified users list
+      this.identifications = await (await fetch(url)).json();
+      this.selector.empty().trigger("change");
+      this.loading = false;
+    },
+
+    /**
+     * Check if an identification can be removed by the currently logged user
+     * @param {PictureIdentification} identification
+     * @return {boolean}
+     */
+    can_be_removed(identification) {
+      return user_is_sas_admin || identification.user.id === user_id;
+    },
+
+    /**
+     * Untag a user from the current picture
+     * @param {PictureIdentification} identification
+     */
+    async remove_identification(identification) {
+      this.loading = true;
+      const res = await fetch(`/api/sas/relation/${identification.id}`, {
+        method: "DELETE",
+      });
+      if (res.ok) {
+        this.identifications = this.identifications.filter(
+          (i) => i.id !== identification.id,
+        );
+      }
+      this.loading = false;
+    },
+  }));
+});

sas/static/sas/js/relation.js

@@ -1,52 +0,0 @@
-document.addEventListener("alpine:init", () => {
-  Alpine.data("user_identification", () => ({
-    identifications: [],
-    selector: undefined,
-
-    async init() {
-      this.loading = true;
-      this.identifications = await (
-        await fetch(`/api/sas/picture/${picture_id}/identified`)
-      ).json();
-      this.selector = sithSelect2({
-        element: $(this.$refs.search),
-        data_source: remote_data_source("/api/user/search", {
-          excluded: () => [...this.identifications.map((i) => i.user.id)],
-          result_converter: (obj) => Object({ ...obj, text: obj.display_name }),
-        }),
-        picture_getter: (user) => user.profile_pict,
-      });
-      this.loading = false;
-    },
-
-    async submit_identification() {
-      this.loading = true;
-      const url = `/api/sas/picture/${picture_id}/identified`;
-      await fetch(url, {
-        method: "PUT",
-        body: JSON.stringify(this.selector.val().map((i) => parseInt(i))),
-      });
-      // refresh the identified users list
-      this.identifications = await (await fetch(url)).json();
-      this.selector.empty().trigger("change");
-      this.loading = false;
-    },
-
-    can_be_removed(item) {
-      return user_is_sas_admin || item.user.id === user_id;
-    },
-
-    async remove(item) {
-      this.loading = true;
-      const res = await fetch(`/api/sas/relation/${item.id}`, {
-        method: "DELETE",
-      });
-      if (res.ok) {
-        this.identifications = this.identifications.filter(
-          (i) => i.id !== item.id,
-        );
-      }
-      this.loading = false;
-    },
-  }));
-});

sas/templates/sas/picture.jinja

@@ -5,7 +5,7 @@
 {%- endblock -%}
 
 {%- block additional_js -%}
-  <script src="{{ static("sas/js/relation.js") }}"></script>
+  <script defer src="{{ static("sas/js/picture.js") }}"></script>
 {%- endblock -%}
 
 {% block title %}
@@ -15,152 +15,157 @@
 {% from "sas/macros.jinja" import print_path %}
 
 {% block content %}
-  <code>
+  <main x-data="picture_viewer">
-    <a href="{{ url('sas:main') }}">SAS</a> / {{ print_path(picture.parent) }} {{ picture.get_display_name() }}
+    <code>
-  </code>
+      <a href="{{ url('sas:main') }}">SAS</a> / {{ print_path(album) }} <span x-text="current_picture.name"></span>
+    </code>
 
-  <br>
+    <br>
 
-  <div class="title">
+    <div class="title">
-    <h3>{{ picture.get_display_name() }}</h3>
+      <h3 x-text="current_picture.name"></h3>
-    <h4>{{ picture.parent.children.filter(id__lte=picture.id).count() }}
+      <h4 x-text="`${pictures.indexOf(current_picture)} / ${pictures.length}`"></h4>
-      / {{ picture.parent.children.count() }}</h4>
-  </div>
-  <br>
-
-  {% if not picture.is_moderated %}
-    {% set next = picture.get_next() %}
-    {% if not next %}
-      {% set next = url('sas:moderation') %}
-    {% else %}
-      {% set next = next.get_absolute_url() + "#pict" %}
-    {% endif %}
-
-    <div class="moderation">
-      <div>
-        {% if picture.asked_for_removal %}
-          <span class="important">{% trans %}Asked for removal{% endtrans %}</span>
-        {% else %}
-          &nbsp;
-        {% endif %}
-      </div>
-      <div>
-        <a href="{{ url('core:file_moderate', file_id=picture.id) }}?next={{ next }}">
-          {% trans %}Moderate{% endtrans %}
-        </a>
-        <a href="{{ url('core:file_delete', file_id=picture.id) }}?next={{ next }}">
-          {% trans %}Delete{% endtrans %}
-        </a>
-      </div>
     </div>
-  {% endif %}
+    <br>
 
-  <div class="container" id="pict">
+    <template x-if="!current_picture.is_moderated">
-    <div class="main">
+      <div class="alert alert-red">
-
+        <div class="alert-main">
-      <div class="photo">
+          <template x-if="current_picture.asked_for_removal">
-        <img src="{{ picture.get_download_compressed_url() }}" alt="{{ picture.get_display_name() }}"/>
+            <span class="important">{% trans %}Asked for removal{% endtrans %}</span>
-      </div>
+          </template>
-
+          <p>
-      <div class="general">
+            {% trans trimmed %}
-        <div class="infos">
+              This picture can be viewed only by root users and by SAS admins.
-          <h5>{% trans %}Infos{% endtrans %}</h5>
+              It will be hidden to other users until it has been moderated.
+            {% endtrans %}
+          </p>
+        </div>
+        <div>
           <div>
-            <div>
+            <button class="btn btn-blue" @click="moderate_picture()">
-              <span>{% trans %}Date: {% endtrans %}</span>
+              {% trans %}Moderate{% endtrans %}
-              <span>{{ picture.date|date(DATETIME_FORMAT) }}</span>
+            </button>
-            </div>
+            <button class="btn btn-red" @click.prevent="delete_picture()">
-            <div>
+              {% trans %}Delete{% endtrans %}
-              <span>{% trans %}Owner: {% endtrans %}</span>
+            </button>
-              <a href="{{ picture.owner.get_absolute_url() }}">{{ picture.owner.get_short_name() }}</a>
+          </div>
-            </div>
+          <p x-show="!!moderation_error" x-text="moderation_error"></p>
+        </div>
+      </div>
+    </template>
 
-            {% if picture.moderator %}
+    <div class="container" id="pict">
+      <div class="main">
+
+        <div class="photo" :aria-busy="loading">
+          <img :src="current_picture.compressed_url" :alt="current_picture.name"/>
+        </div>
+
+        <div class="general">
+          <div class="infos">
+            <h5>{% trans %}Infos{% endtrans %}</h5>
+            <div>
               <div>
-                <span>{% trans %}Moderator: {% endtrans %}</span>
+                <span>{% trans %}Date: {% endtrans %}</span>
-                <a href="{{ picture.moderator.get_absolute_url() }}">{{ picture.moderator.get_short_name() }}</a>
+                <span
+                  x-text="Intl.DateTimeFormat(
+                          '{{ LANGUAGE_CODE }}', {dateStyle: 'long'}
+                          ).format(new Date(current_picture.date))"
+                >
+                </span>
               </div>
-            {% endif %}
+              <div>
+                <span>{% trans %}Owner: {% endtrans %}</span>
+                <a :href="current_picture.owner.profile_url" x-text="current_picture.owner.display_name"></a>
+              </div>
+            </div>
           </div>
-        </div>
 
-        <div class="tools">
+          <div class="tools">
-          <h5>{% trans %}Tools{% endtrans %}</h5>
+            <h5>{% trans %}Tools{% endtrans %}</h5>
-          <div>
             <div>
-              <a class="text" href="{{ picture.get_download_url() }}">
+              <div>
-                {% trans %}HD version{% endtrans %}
+                <a class="text" :href="current_picture.full_size_url">
-              </a>
+                  {% trans %}HD version{% endtrans %}
-              <br>
+                </a>
-              <a class="text danger" href="?ask_removal">{% trans %}Ask for removal{% endtrans %}</a>
+                <br>
-            </div>
+                <a class="text danger" href="?ask_removal">{% trans %}Ask for removal{% endtrans %}</a>
-            <div class="buttons">
+              </div>
-              <a class="button" href="{{ url('sas:picture_edit', picture_id=picture.id) }}">✏️</a>
+              <div class="buttons">
-              <a class="button" href="?rotate_left">↺</a>
+                <a class="button" :href="`/sas/picture/${current_picture.id}/edit/`">✏️</a>
-              <a class="button" href="?rotate_right">↻</a>
+                <a class="button" href="?rotate_left">↺</a>
+                <a class="button" href="?rotate_right">↻</a>
+              </div>
             </div>
           </div>
         </div>
       </div>
-    </div>
 
-    <div class="subsection">
+      <div class="subsection">
-      <div class="navigation" x-data>
+        <div class="navigation">
-        <div id="prev">
+          <div id="prev" class="clickable">
-          {% if previous_pict %}
+            <template x-if="previous_picture">
-            <a
+              <div
-              href="{{ url( 'sas:picture', picture_id=previous_pict.id) }}#pict"
+                @keyup.left.window="current_picture = previous_picture"
-              @keyup.left.window="$el.click()"
+                @click="current_picture = previous_picture"
-            >
+              >
-              <div style="background-image: url('{{ previous_pict.get_download_thumb_url() }}');"></div>
+                <img :src="previous_picture.thumb_url" alt="{% trans %}Previous picture{% endtrans %}"/>
-            </a>
+                <div class="overlay">←</div>
-          {% endif %}
+              </div>
+            </template>
+          </div>
+          <div id="next" class="clickable">
+            <template x-if="next_picture">
+              <div
+                @keyup.right.window="current_picture = next_picture"
+                @click="current_picture = next_picture"
+              >
+                <img :src="next_picture.thumb_url" alt="{% trans %}Previous picture{% endtrans %}"/>
+                <div class="overlay">→</div>
+              </div>
+            </template>
+          </div>
         </div>
-        <div id="next">
+
-          {% if next_pict %}
+        <div class="tags">
-            <a
+          <h5>{% trans %}People{% endtrans %}</h5>
-              href="{{ url( 'sas:picture', picture_id=next_pict.id) }}#pict"
+          {% if user.was_subscribed %}
-              @keyup.right.window="$el.click()"
+            <form @submit.prevent="submit_identification" x-show="!!selector">
-            >
+              <select x-ref="search" multiple="multiple"></select>
-              <div style="background-image: url('{{ next_pict.get_download_thumb_url() }}');"></div>
+              <input type="submit" value="{% trans %}Go{% endtrans %}"/>
-            </a>
+            </form>
           {% endif %}
+          <ul>
+            <template x-for="identification in identifications" :key="identification.id">
+              <li>
+                <a class="user" :href="identification.user.profile_url">
+                  <img class="profile-pic" :src="identification.user.profile_pict" alt="image de profil"/>
+                  <span x-text="identification.user.display_name"></span>
+                </a>
+                <template x-if="can_be_removed(identification)">
+                  <a class="delete clickable" @click="remove_identification(identification)">❌</a>
+                </template>
+              </li>
+            </template>
+            <template x-if="loading">
+                {# shadow element that exists only to put the loading wheel below
+                the list of identified people #}
+              <li class="loader" aria-busy="true"></li>
+            </template>
+          </ul>
         </div>
       </div>
-
-      <div class="tags" x-data="user_identification">
-        <h5>{% trans %}People{% endtrans %}</h5>
-        {% if user.was_subscribed %}
-          <form @submit.prevent="submit_identification" x-show="!!selector">
-            <select x-ref="search" multiple="multiple"></select>
-            <input type="submit" value="{% trans %}Go{% endtrans %}"/>
-          </form>
-        {% endif %}
-        <ul>
-          <template x-for="identification in identifications" :key="identification.id">
-            <li>
-              <a class="user" :href="identification.user.profile_url">
-                <img class="profile-pic" :src="identification.user.profile_pict" alt="image de profil"/>
-                <span x-text="identification.user.display_name"></span>
-              </a>
-              <template x-if="can_be_removed(identification)">
-                <a class="delete clickable" @click="remove(identification)">❌</a>
-              </template>
-            </li>
-          </template>
-          <template x-if="loading">
-            <li class="loader" aria-busy="true"></li>
-          </template>
-        </ul>
-      </div>
     </div>
-  </div>
+  </main>
 {% endblock %}
 
 {% block script %}
   {{ super() }}
   <script>
-    const picture_id = {{ picture.id }};
+    const picture_endpoint = "{{ url("api:pictures") + "?album_id=" + album.id|string }}";
+    const album_url = "{{ album.get_absolute_url() }}";
+    const first_picture_id = {{ picture.id }};  {# id of the first picture to show after page load #}
     const user_id = {{ user.id }};
     const user_is_sas_admin = {{ (user.is_root or user.is_in_group(pk = settings.SITH_GROUP_SAS_ADMIN_ID))|tojson }}
   </script>

sas/views.py

@@ -146,17 +146,9 @@ class PictureView(CanViewMixin, DetailView):
         return super().get(request, *args, **kwargs)
 
     def get_context_data(self, **kwargs):
-        kwargs = super().get_context_data(**kwargs)
+        return super().get_context_data(**kwargs) | {
-        pictures_qs = Picture.objects.filter(
+            "album": Album.objects.get(children=self.object)
-            parent_id=self.object.parent_id
+        }
-        ).viewable_by(self.request.user)
-        kwargs["next_pict"] = (
-            pictures_qs.filter(id__gt=self.object.id).order_by("id").first()
-        )
-        kwargs["previous_pict"] = (
-            pictures_qs.filter(id__lt=self.object.id).order_by("-id").first()
-        )
-        return kwargs
 
 
 def send_album(request, album_id):