generate covers in migration

diff --git a/apps/catalogue/migrations/0021_build_covers.py b/apps/catalogue/migrations/0021_build_covers.py
new file mode 100644 (file)
index 0000000..126417d
--- /dev/null
+++ b/apps/catalogue/migrations/0021_build_covers.py
@@ -0,0 +1,132 @@
+# encoding: utf-8
+import datetime
+from south.db import db
+from south.v2 import DataMigration
+from django.db import models
+
+class Migration(DataMigration):
+
+    def forwards(self, orm):
+        "Write your forwards methods here."
+        from StringIO import StringIO
+        from django.core.files.base import ContentFile
+        from librarian.cover import WLCover
+        from librarian.dcparser import BookInfo
+
+        for book in orm.Book.objects.filter(cover=''):
+            book_info = BookInfo.from_file(book.xml_file.path)
+            cover = WLCover(book_info).image()
+            imgstr = StringIO()
+            cover.save(imgstr, 'png')
+            book.cover.save('book/png/%s.png' % book.slug,
+                    ContentFile(imgstr.getvalue()))
+
+
+    def backwards(self, orm):
+        "Write your backwards methods here."
+
+
+    models = {
+        'auth.group': {
+            'Meta': {'object_name': 'Group'},
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '80'}),
+            'permissions': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Permission']", 'symmetrical': 'False', 'blank': 'True'})
+        },
+        'auth.permission': {
+            'Meta': {'ordering': "('content_type__app_label', 'content_type__model', 'codename')", 'unique_together': "(('content_type', 'codename'),)", 'object_name': 'Permission'},
+            'codename': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'content_type': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['contenttypes.ContentType']"}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '50'})
+        },
+        'auth.user': {
+            'Meta': {'object_name': 'User'},
+            'date_joined': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}),
+            'email': ('django.db.models.fields.EmailField', [], {'max_length': '75', 'blank': 'True'}),
+            'first_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}),
+            'groups': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Group']", 'symmetrical': 'False', 'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'is_active': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
+            'is_staff': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'is_superuser': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'last_login': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}),
+            'last_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}),
+            'password': ('django.db.models.fields.CharField', [], {'max_length': '128'}),
+            'user_permissions': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Permission']", 'symmetrical': 'False', 'blank': 'True'}),
+            'username': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '30'})
+        },
+        'catalogue.book': {
+            'Meta': {'ordering': "('sort_key',)", 'unique_together': "[['slug', 'language']]", 'object_name': 'Book'},
+            'changed_at': ('django.db.models.fields.DateTimeField', [], {'auto_now': 'True', 'db_index': 'True', 'blank': 'True'}),
+            'cover': ('django.db.models.fields.files.FileField', [], {'max_length': '100', 'null': 'True', 'blank': 'True'}),
+            'created_at': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'db_index': 'True', 'blank': 'True'}),
+            'description': ('django.db.models.fields.TextField', [], {'blank': 'True'}),
+            'epub_file': ('django.db.models.fields.files.FileField', [], {'max_length': '100', 'blank': 'True'}),
+            'extra_info': ('catalogue.fields.JSONField', [], {'default': "'{}'"}),
+            'gazeta_link': ('django.db.models.fields.CharField', [], {'max_length': '240', 'blank': 'True'}),
+            'html_file': ('django.db.models.fields.files.FileField', [], {'max_length': '100', 'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'language': ('django.db.models.fields.CharField', [], {'default': "'pol'", 'max_length': '3', 'db_index': 'True'}),
+            'mobi_file': ('django.db.models.fields.files.FileField', [], {'max_length': '100', 'blank': 'True'}),
+            'parent': ('django.db.models.fields.related.ForeignKey', [], {'blank': 'True', 'related_name': "'children'", 'null': 'True', 'to': "orm['catalogue.Book']"}),
+            'parent_number': ('django.db.models.fields.IntegerField', [], {'default': '0'}),
+            'pdf_file': ('django.db.models.fields.files.FileField', [], {'max_length': '100', 'blank': 'True'}),
+            'slug': ('django.db.models.fields.SlugField', [], {'max_length': '120', 'db_index': 'True'}),
+            'sort_key': ('django.db.models.fields.CharField', [], {'max_length': '120', 'db_index': 'True'}),
+            'title': ('django.db.models.fields.CharField', [], {'max_length': '120'}),
+            'txt_file': ('django.db.models.fields.files.FileField', [], {'max_length': '100', 'blank': 'True'}),
+            'wiki_link': ('django.db.models.fields.CharField', [], {'max_length': '240', 'blank': 'True'}),
+            'xml_file': ('django.db.models.fields.files.FileField', [], {'max_length': '100', 'blank': 'True'})
+        },
+        'catalogue.bookmedia': {
+            'Meta': {'ordering': "('type', 'name')", 'object_name': 'BookMedia'},
+            'book': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'media'", 'to': "orm['catalogue.Book']"}),
+            'extra_info': ('catalogue.fields.JSONField', [], {'default': "'{}'"}),
+            'file': ('catalogue.fields.OverwritingFileField', [], {'max_length': '100'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': "'100'"}),
+            'source_sha1': ('django.db.models.fields.CharField', [], {'max_length': '40', 'null': 'True', 'blank': 'True'}),
+            'type': ('django.db.models.fields.CharField', [], {'max_length': "'100'"}),
+            'uploaded_at': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'blank': 'True'})
+        },
+        'catalogue.fragment': {
+            'Meta': {'ordering': "('book', 'anchor')", 'object_name': 'Fragment'},
+            'anchor': ('django.db.models.fields.CharField', [], {'max_length': '120'}),
+            'book': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'fragments'", 'to': "orm['catalogue.Book']"}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'short_text': ('django.db.models.fields.TextField', [], {}),
+            'text': ('django.db.models.fields.TextField', [], {})
+        },
+        'catalogue.tag': {
+            'Meta': {'ordering': "('sort_key',)", 'unique_together': "(('slug', 'category'),)", 'object_name': 'Tag'},
+            'book_count': ('django.db.models.fields.IntegerField', [], {'null': 'True', 'blank': 'True'}),
+            'category': ('django.db.models.fields.CharField', [], {'max_length': '50', 'db_index': 'True'}),
+            'changed_at': ('django.db.models.fields.DateTimeField', [], {'auto_now': 'True', 'db_index': 'True', 'blank': 'True'}),
+            'created_at': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'db_index': 'True', 'blank': 'True'}),
+            'description': ('django.db.models.fields.TextField', [], {'blank': 'True'}),
+            'gazeta_link': ('django.db.models.fields.CharField', [], {'max_length': '240', 'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '50', 'db_index': 'True'}),
+            'slug': ('django.db.models.fields.SlugField', [], {'max_length': '120', 'db_index': 'True'}),
+            'sort_key': ('django.db.models.fields.CharField', [], {'max_length': '120', 'db_index': 'True'}),
+            'user': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['auth.User']", 'null': 'True', 'blank': 'True'}),
+            'wiki_link': ('django.db.models.fields.CharField', [], {'max_length': '240', 'blank': 'True'})
+        },
+        'catalogue.tagrelation': {
+            'Meta': {'unique_together': "(('tag', 'content_type', 'object_id'),)", 'object_name': 'TagRelation', 'db_table': "'catalogue_tag_relation'"},
+            'content_type': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['contenttypes.ContentType']"}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'object_id': ('django.db.models.fields.PositiveIntegerField', [], {'db_index': 'True'}),
+            'tag': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'items'", 'to': "orm['catalogue.Tag']"})
+        },
+        'contenttypes.contenttype': {
+            'Meta': {'ordering': "('name',)", 'unique_together': "(('app_label', 'model'),)", 'object_name': 'ContentType', 'db_table': "'django_content_type'"},
+            'app_label': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'model': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '100'})
+        }
+    }
+
+    complete_apps = ['catalogue']

diff --git a/wolnelektury/templates/catalogue/book_mini_box.html b/wolnelektury/templates/catalogue/book_mini_box.html
index 43ca2a5..6728be8 100755 (executable)
--- a/wolnelektury/templates/catalogue/book_mini_box.html
+++ b/wolnelektury/templates/catalogue/book_mini_box.html
@@ -2,13 +2,15 @@
 {% load thumbnail %}
 <div class="book-mini-box">
     <a href="{{ book.get_absolute_url }}">
-        <img src="
-            {% thumbnail book.cover "216x288" as thumb %}
-                {{ thumb.url }}
-            {% empty %}
-                {{ book.cover.url }}
-            {% endthumbnail %}
-        " alt="{% trans "Book cover" %}" />
+        {% if book.cover %}
+            <img src="
+                {% thumbnail book.cover "216x288" as thumb %}
+                    {{ thumb.url }}
+                {% empty %}
+                    {{ book.cover.url }}
+                {% endthumbnail %}
+            " alt="{% trans "Book cover" %}" />
+        {% endif %}
         {% for author in authors %}
             <div class="mono author">{{ author }}</div>
             {{ book.title }}