Update helpers.py

Author: minhajuddin2510

ckanext/showcase/logic/helpers.py

@@ -34,3 +34,26 @@ def get_site_statistics():
 
 def showcase_get_wysiwyg_editor():
     return tk.config.get('ckanext.showcase.editor', '')
+
+
+def get_value_from_showcase_extras(extras, key):
+    value = ''
+    for item in extras:
+        if item.get('key') == key:
+            value = item.get('value')
+    return value
+
+# look for a thumbnail image for image found at path image_url and returns the thumbnail url if it exists
+# if no thumbnail exists, the original image_fp is returned
+def get_thumbnail( image_name ):
+
+    # convert image url to file path
+    #image_fp = tk.config.get("ckan.storage_path") + '/storage' + image_name
+
+    # convert image_fp to thumb_fp by adding -thumbnail before the file extension
+    thumb_name =  "{0}-{2}.{1}".format(*image_name.rsplit('.', 1) + ['thumbnail'])
+
+    if exists( tk.config.get("ckan.storage_path") + '/storage/uploads/showcase/' + thumb_name ):
+        return thumb_name
+    else:
+        return image_name