get photos from server, optimize creating thumbs, add buttons

fet2020/gallery/models.py

@@ -10,7 +10,7 @@ class Album(models.Model):
     title = models.CharField(verbose_name="Titel", max_length=200)
     slug = models.SlugField(unique=True, null=True, blank=True)
 
-    folder_path = models.CharField(verbose_name="Ordner Path", max_length=200)
+    folder_name = models.CharField(verbose_name="Ordner Name", max_length=200)
     thumbnail = models.CharField(
         verbose_name="Thumbnail", max_length=200, null=True, blank=True
     )
@@ -27,8 +27,8 @@ class Album(models.Model):
     )
     status = models.CharField(max_length=2, choices=STATUS, default="10")
 
-    public_date = models.DateField(
+    event_date = models.DateField(
-        verbose_name="Veröffentlichung", null=True, blank=True, default=timezone.now
+        verbose_name="Event Datum", null=True, blank=True, default=timezone.now
     )
 
     # Managers

fet2020/gallery/urls.py

@@ -6,4 +6,5 @@ from . import views
 urlpatterns = [
     path("", views.index, name="gallery"),
     path("<slug:slug>/", views.show_album, name="album"),
+    path("draft/<slug:slug>/", views.show_draft_album, name="draft-album"),
 ]

fet2020/gallery/utils.py

@@ -0,0 +1,74 @@
+import logging
+import os
+from PIL import Image, ExifTags, ImageOps
+
+
+logger = logging.getLogger(__name__)
+valid_images = [".jpg", ".png"]
+
+
+def get_image_list(file_path):
+    img_list = []
+
+    if os.path.exists(file_path):
+        for f in os.listdir(file_path):
+            ext = os.path.splitext(f)[1]
+            if ext.lower() not in valid_images:
+                continue
+
+            img_list.append(f)
+
+    return img_list
+
+
+def create_thumbs(folder_path):
+    _base_dir = "/home/project/fet2020/fet2020"
+    _path = "/files/uploads/gallery"
+    _thumb_path = "/files/uploads/gallery_thumb"
+
+    file_path = os.path.join(_base_dir + _path, folder_path)
+    thumb_path = os.path.join(_base_dir + _thumb_path, folder_path)
+
+    if os.path.exists(file_path):
+        os.makedirs(thumb_path, exist_ok=True)
+
+        for f in os.listdir(file_path):
+            logger.info(f"Bild {f} wird bearbeitet.")
+            thumb_file_path = os.path.join(thumb_path, f"thumb_{f}")
+            if os.path.exists(thumb_file_path):
+                continue
+
+            ext = os.path.splitext(f)[1]
+            if ext.lower() not in valid_images:
+                continue
+
+            image_path = os.path.join(file_path, f)
+
+            with Image.open(str(image_path), "r") as image:
+                if image._getexif() is not None:
+                    for orientation in ExifTags.TAGS.keys():
+                        if ExifTags.TAGS[orientation] == "Orientation":
+                            break
+                        exif = dict(image._getexif().items())
+
+                    if exif[orientation] == 3:
+                        image = image.rotate(180, expand=True)
+                    elif exif[orientation] == 6:
+                        image = image.rotate(270, expand=True)
+                    elif exif[orientation] == 8:
+                        image = image.rotate(90, expand=True)
+
+                thumb = ImageOps.fit(image, (256, 256), Image.ANTIALIAS)
+                thumb.save(thumb_file_path)
+
+
+def get_thumb(folder_path, img):
+    _base_dir = "/home/project/fet2020/fet2020"
+    _thumb_path = "/files/uploads/gallery_thumb"
+
+    thumb_path = os.path.join(_base_dir + _thumb_path, folder_path)
+    thumb_file_path = os.path.join(thumb_path, f"thumb_{img}")
+    if os.path.exists(thumb_file_path):
+        return f"thumb_{img}"
+
+    return img

fet2020/gallery/views.py

@@ -1,47 +1,59 @@
 import os
-
 from collections import deque
+from random import randint
+
 from django.http import Http404, HttpResponse
-from django.shortcuts import render
+from django.shortcuts import render, redirect
+from django.utils.text import slugify
 
+from authentications.decorators import unauthenticated_user, authenticated_user
 from .models import Album
-
+from .utils import get_image_list, create_thumbs, get_thumb
-
-def __get_image_list(file_path):
-    img_list = []
-    valid_images = [".jpg", ".png"]
-
-    if os.path.exists(file_path):
-        for f in os.listdir(file_path):
-            ext = os.path.splitext(f)[1]
-            if ext.lower() not in valid_images:
-                continue
-
-            img_list.append(f)
-
-    return img_list
 
 
 def index(request):
-
     _base_dir = "/home/project/fet2020/fet2020"
-    _path = "/static/images/"
+    _path = "/files/uploads/gallery"
+
+    folders = next(os.walk(_base_dir + _path))[1]
 
     if request.user.is_authenticated:
-        albums = deque(Album.objects.all())
+        albums = deque(Album.objects.all().order_by("-event_date"))
     else:
         # show only PUBLIC albums ("20" -> PUBLIC)
-        albums = deque(Album.objects.filter(status="20"))
+        albums = deque(Album.objects.filter(status="20").order_by("-event_date"))
 
     for album in list(albums):
         if not album.thumbnail:
-            file_path = os.path.join(_base_dir + _path, album.folder_path)
+            file_path = os.path.join(_base_dir + _path, album.folder_name)
-            img_list = __get_image_list(file_path)
+            img_list = get_image_list(file_path)
             if img_list:
-                album.thumbnail = img_list[0]
+                album.thumbnail = get_thumb(
+                    album.folder_name, img_list[randint(0, len(img_list) - 1)]
+                )
             else:
                 albums.remove(album)
 
+    if request.user.is_authenticated:
+        for folder in folders:
+            if not Album.objects.filter(folder_name=folder):
+                album = Album(
+                    title=folder,
+                    slug=slugify(folder),
+                    folder_name=folder,
+                    event_date=None,
+                )
+
+                file_path = os.path.join(_base_dir + _path, album.folder_name)
+                img_list = get_image_list(file_path)
+
+                if img_list:
+                    album.thumbnail = get_thumb(
+                        album.folder_name, img_list[randint(0, len(img_list) - 1)]
+                    )
+
+                albums.append(album)
+
     context = {
         "albums": albums,
         "path": _path,
@@ -51,16 +63,28 @@ def index(request):
 
 
 def show_album(request, slug):
-
     _base_dir = "/home/project/fet2020/fet2020"
-    _path = "/static/images/"
+    _path = "/files/uploads/gallery"
 
     album = Album.objects.filter(slug=slug).first()
     if not album:
+        folders = next(os.walk(_base_dir + _path))[1]
+        for folder in folders:
+            if slug in slugify(folder):
+                album = Album(
+                    title=folder,
+                    slug=slugify(folder),
+                    folder_name=folder,
+                    event_date=None,
+                )
+                break
+        else:
             raise Http404("wrong album slug")
 
-    file_path = os.path.join(_base_dir + _path, album.folder_path)
+    file_path = os.path.join(_base_dir + _path, album.folder_name)
-    img_list = __get_image_list(file_path)
+    img_list = get_image_list(file_path)
+
+    create_thumbs(album.folder_name)
 
     context = {
         "album": album,
@@ -69,3 +93,8 @@ def show_album(request, slug):
     }
 
     return render(request, "gallery/album.html", context)
+
+
+@authenticated_user
+def show_draft_album(request, slug):
+    return show_album(request, slug)

fet2020/templates/gallery/album.html

@@ -1,6 +1,5 @@
 {% extends 'layout.html' %}
 {% load static %}
-{% load thumbnail %}
 
 {% block galleryheader %}
     <link rel="stylesheet" href="{% static 'Gallery-3.3.0/css/blueimp-gallery.min.css' %}">
@@ -9,24 +8,38 @@
 {% block content %}
 
 <div class="grid-container">
-
     <div class="grid-x padding-top-1">
         <a class="button" href="{% url 'gallery' %}">Zurück</a>
     </div>
     <hr>
 
     <div class="grid-x">
+        {% if request.user.is_authenticated %}
+            {% if album.id %}
+                <div class="cell large-3 medium-4 small-12">
+                    <a class="button" href="{% url 'admin:gallery_album_change' album.id %}">Album bearbeiten</a>
+                </div>
+            {% else %}
+                <div class="cell large-3 medium-4 small-12">
+                    <a class="button" href="{% url 'admin:gallery_album_add' %}">neues Album hinzufügen</a>
+                </div>
+            {% endif %}
+        {% endif %}
+
         <div class="cell">
+            {{ album.title }}<br>
             {% if album.photographer %}
                 Fotograf:<a href="{% url 'member' album.photographer.id %}"> {{ album.photographer | capfirst }}</a><br>
             {% endif %}
-            Datum: {{ album.public_date }}<br>
+            {% if album.event_date %}
+                Datum: {{ album.event_date }}<br>
+            {% endif %}
             {% if album.status == "10" %}
                 DRAFT<br>
             {% endif %}
             {% if album.description %}
                 <p>
-                {{ album.description }}
+                {{ album.description|safe }}
             {% endif %}
         </div>
     </div>
@@ -45,8 +58,8 @@
 
     <div id="links" class="grid-x">
         {% for image in images %}
-            <a id="{{ image }}" href="{{ path }}{{ album.folder_path }}/{{ image }}" title="{{ image }}" class="cell large-2 medium-3 small-12">
+            <a id="{{ image }}" href="{{ path }}/{{ album.folder_name }}/{{ image }}" title="{{ image }}" class="cell large-2 medium-3 small-12">
-                <img src="{{ path }}{{ album.folder_path }}/{{ image }}" alt="{{ image }}">
+                <img src="{{ path }}_thumb/{{ album.folder_name }}/thumb_{{ image }}" alt="{{ image }}">
             </a>
         {% endfor %}
     </div>

fet2020/templates/gallery/index.html

@@ -4,19 +4,29 @@
 {% block content %}
 
 <div class="grid-container">
+    <div class="grid-x padding-top-1">
+        {% if request.user.is_authenticated %}
+            <div class="cell large-3 medium-4 small-12">
+                <a class="button" href="{% url 'admin:gallery_album_add' %}">neues Album hinzufügen</a>
+            </div>
+        {% endif %}
+    </div>
+
     <div class="grid-x">
-
         {% for album in albums %}
-        <div class="cell large-2 medium-3 small-12">
+        <div class="cell large-2 medium-3 small-12" {% if album.status == "10" %}style="background-color:red;"{% endif %}>
 
+            {% if album.status == "10" %}
+                <a href="{% url 'draft-album' album.slug %}">               
+            {% else %}
                 <a href="{% url 'album' album.slug %}">
-            <img src="{{ path }}{{ album.folder_path }}/{{ album.thumbnail }}">
+            {% endif %}
+                    <img src="{{ path }}_thumb/{{ album.folder_name }}/{{ album.thumbnail }}">
                     {{ album.title }}
                 </a>
 
         </div>
         {% endfor %}
-
     </div>
 </div>