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   1  /**
   2   * JavaScript for form editing grouping conditions.
   3   *
   4   * @module moodle-availability_grouping-form
   5   */
   6  M.availability_grouping = M.availability_grouping || {};
   7  
   8  /**
   9   * @class M.availability_grouping.form
  10   * @extends M.core_availability.plugin
  11   */
  12  M.availability_grouping.form = Y.Object(M.core_availability.plugin);
  13  
  14  /**
  15   * Groupings available for selection (alphabetical order).
  16   *
  17   * @property groupings
  18   * @type Array
  19   */
  20  M.availability_grouping.form.groupings = null;
  21  
  22  /**
  23   * Initialises this plugin.
  24   *
  25   * @method initInner
  26   * @param {Array} groupings Array of objects containing groupingid => name
  27   */
  28  M.availability_grouping.form.initInner = function(groupings) {
  29      this.groupings = groupings;
  30  };
  31  
  32  M.availability_grouping.form.getNode = function(json) {
  33      // Create HTML structure.
  34      var strings = M.str.availability_grouping;
  35      var html = '<label>' + strings.title + ' <span class="availability-group">' +
  36              '<select name="id">' +
  37              '<option value="choose">' + M.str.moodle.choosedots + '</option>';
  38      for (var i = 0; i < this.groupings.length; i++) {
  39          var grouping = this.groupings[i];
  40          // String has already been escaped using format_string.
  41          html += '<option value="' + grouping.id + '">' + grouping.name + '</option>';
  42      }
  43      html += '</select></span></label>';
  44      var node = Y.Node.create('<span>' + html + '</span>');
  45  
  46      // Set initial value if specified.
  47      if (json.id !== undefined &&
  48              node.one('select[name=id] > option[value=' + json.id + ']')) {
  49          node.one('select[name=id]').set('value', '' + json.id);
  50      }
  51  
  52      // Add event handlers (first time only).
  53      if (!M.availability_grouping.form.addedEvents) {
  54          M.availability_grouping.form.addedEvents = true;
  55          var root = Y.one('#fitem_id_availabilityconditionsjson');
  56          root.delegate('change', function() {
  57              // Just update the form fields.
  58              M.core_availability.form.update();
  59          }, '.availability_grouping select');
  60      }
  61  
  62      return node;
  63  };
  64  
  65  M.availability_grouping.form.fillValue = function(value, node) {
  66      var selected = node.one('select[name=id]').get('value');
  67      if (selected === 'choose') {
  68          value.id = 'choose';
  69      } else {
  70          value.id = parseInt(selected, 10);
  71      }
  72  };
  73  
  74  M.availability_grouping.form.fillErrors = function(errors, node) {
  75      var value = {};
  76      this.fillValue(value, node);
  77  
  78      // Check grouping item id.
  79      if (value.id === 'choose') {
  80          errors.push('availability_grouping:error_selectgrouping');
  81      }
  82  };