Add list support for static asset settings (#189)

Co-authored-by: Johannes Maron <[email protected]>

django_select2/conf.py

@@ -55,32 +55,32 @@ class Select2Conf(AppConf):
     It has set `select2_` as a default value, which you can change if needed.
     """
 
-    JS = "admin/js/vendor/select2/select2.full.min.js"
+    JS = ["admin/js/vendor/select2/select2.full.min.js"]
     """
     The URI for the Select2 JS file. By default this points to version shipped with Django.
 
     If you want to select the version of the JS library used, or want to serve it from
     the local 'static' resources, add a line to your settings.py like so::
 
-        SELECT2_JS = 'assets/js/select2.min.js'
+        SELECT2_JS = ['assets/js/select2.min.js']
 
     If you provide your own JS and would not like Django-Select2 to load any, change
     this setting to a blank string like so::
 
-        SELECT2_JS = ''
+        SELECT2_JS = []
 
     .. tip:: Change this setting to a local asset in your development environment to
         develop without an Internet connection.
     """
 
-    CSS = "admin/css/vendor/select2/select2.min.css"
+    CSS = ["admin/css/vendor/select2/select2.min.css"]
     """
     The URI for the Select2 CSS file. By default this points to version shipped with Django.
 
     If you want to select the version of the library used, or want to serve it from
     the local 'static' resources, add a line to your settings.py like so::
 
-        SELECT2_CSS = 'assets/css/select2.css'
+        SELECT2_CSS = ['assets/css/select2.css']
 
     If you want to add more css (usually used in select2 themes), add a line
     in settings.py like this::
@@ -93,7 +93,7 @@ class Select2Conf(AppConf):
     If you provide your own CSS and would not like Django-Select2 to load any, change
     this setting to a blank string like so::
 
-        SELECT2_CSS = ''
+        SELECT2_CSS = []
 
     .. tip:: Change this setting to a local asset in your development environment to
         develop without an Internet connection.

django_select2/forms.py

@@ -127,9 +127,11 @@ def media(self):
         .. Note:: For more information visit
             https://docs.djangoproject.com/en/stable/topics/forms/media/#media-as-a-dynamic-property
         """
-        select2_js = [settings.SELECT2_JS] if settings.SELECT2_JS else []
+        select2_js = settings.SELECT2_JS if settings.SELECT2_JS else []
         select2_css = settings.SELECT2_CSS if settings.SELECT2_CSS else []
 
+        if isinstance(select2_js, str):
+            select2_js = [select2_js]
         if isinstance(select2_css, str):
             select2_css = [select2_css]