app: add spawn method to multiply records based on array in record

js/erp5_loader.js

@@ -2882,7 +2882,7 @@
     return config;
   };
 
-  // TODO: remove, should be handled by content.set
+  // TODO: remove, should be handled by content.set!!!
   // TODO: why is this not done on click, when we can get the href > element
   // from the link attribute?
   /**
@@ -2928,6 +2928,7 @@
             element.appendChild(content);
           })
           .then(function () {
+            // need this call otherwise loaded content is not enhanced
             $el = $(element).enhanceWithin();
 
             // TODO: un-jQuery eventually...
@@ -6308,13 +6309,12 @@
         };
 
         // TODO: determine value to query based on URL (this stinks...)
-        if (lib.layout_level > 0) {
+        // NOTE: picking value from URL if specified
+        if (lib.layout_level > 0 &&
+          dict.property_dict.initial_query_url_identifier) {
           last = lib.fragment_list.slice(-1)[0];
+          pass.data_dict.value = lib.fragment_list[lib.layout_level];
 
-          if (!lib.mode || last !== lib.mode) {
-            pass.data_dict.value =
-                lib.fragment_list[lib.layout_level];
-          }
         }
 
         // generate query object
@@ -6733,9 +6733,14 @@
         if (is_parameter) {
           kid = app.util.setParam(kid, wrapper);
         }
-        // ===================================================================
 
+        // spawn children based on trigger field (must be array)
+        if (kid.property_dict && kid.property_dict.spawn_on) {
+          kid.children = app.util.spawn(kid.children, kid.property_dict.spawn_on);
+          kid.property_dict.total_rows = kid.children.length;
+        }
 
+        // ===================================================================
 
         if (quirk_dict.update !== true || is_dynamic || quirk_dict.dynamic) {
           // for content loaded via href, generate URL dict and undefine kid
@@ -6960,6 +6965,37 @@
   /* ********************************************************************** */
   app.util = {};
 
+  /** Spawn (multiply children based on an array (so far only used when
+   * an item returns an array of strings and we need items for every string
+   * (carousel)
+   * @method  spawn
+   * @param   {Array}   kids Original array
+   * @param   {String}  trig Trigger field
+   * @returns {Array}   new Array
+   */
+  // TODO: really necessary like this...? Store data differently!
+  // Like store image urls and make a query on "items"
+  app.util.spawn = function (kids, trig) {
+    var i, j, trig_len, len, kid, arr, clone, new_kids, new_kid;
+
+    new_kids = [];
+    for (i = 0, len = kids.length; i < len; i += 1) {
+      kid = kids[i];
+      arr = kid.doc[trig];
+
+      if (Array.isArray(arr)) {
+        for (j = 0, trig_len = arr.length; j < trig_len; j += 1) {
+          new_kid = util.cloneObject(kid);
+          new_kid.doc[trig] = arr[j];
+          new_kids.push(new_kid);
+        }
+      } else {
+        new_kids.push(kid);
+      }
+    }
+    return new_kids;
+  };
+
   /** Fetch a subordinate record to set values of an object
    * @method setSubordinate
    * @method setParam