Anfänglicher Commit: Producion Version Stand: Oktober 2014

htdocs/grappelli/js/jquery.grp_related_fk.js

@@ -0,0 +1,66 @@
+/**
+ * GRAPPELLI RELATED FK
+ * foreign-key lookup
+ */
+
+(function($){
+    
+    var methods = {
+        init: function(options) {
+            options = $.extend({}, $.fn.grp_related_fk.defaults, options);
+            return this.each(function() {
+                var $this = $(this);
+                var $parent = $this.parent();
+                // remove djangos object representation
+                if ($parent.find('a.related-lookup').next().is('strong')) {
+                    $parent.find('a.related-lookup').get(0).nextSibling.nodeValue="";
+                    $parent.find('a.related-lookup').next('strong').remove();
+                }
+                // add placeholder
+                $parent.find('a.related-lookup').after(options.placeholder);
+                // add related class
+                $this.addClass('grp-has-related-lookup');
+                // lookup
+                lookup_id($this, options); // lookup when loading page
+                $this.bind("change focus keyup", function() { // id-handler
+                    lookup_id($this, options);
+                });
+            });
+        }
+    };
+    
+    $.fn.grp_related_fk = function(method) {
+        if (methods[method]) {
+            return methods[method].apply(this, Array.prototype.slice.call(arguments, 1));
+        } else if (typeof method === 'object' || ! method) {
+            return methods.init.apply(this, arguments);
+        } else {
+            $.error('Method ' +  method + ' does not exist on jQuery.grp_related_fk');
+        }
+        return false;
+    };
+    
+    var lookup_id = function(elem, options) {
+        var text = elem.parent().find('.grp-placeholder-related-fk');
+        $.getJSON(options.lookup_url, {
+            object_id: elem.val(),
+            app_label: grappelli.get_app_label(elem),
+            model_name: grappelli.get_model_name(elem),
+            query_string: grappelli.get_query_string(elem)
+        }, function(data) {
+            if (data[0].label === "") {
+                text.hide();
+            } else {
+                text.show();
+            }
+            text.html('<span class="grp-placeholder-label">' + data[0].label + '</span>');
+        });
+    };
+    
+    $.fn.grp_related_fk.defaults = {
+        placeholder: '<div class="grp-placeholder-related-fk"></div>',
+        repr_max_length: 30,
+        lookup_url: ''
+    };   
+    
+})(grp.jQuery);