Ext.Base.prototype.callSuper documentation

gistfile1.txt

/**
 * This method is used by an override to call the superclass method but bypass any
 * overridden method. This is often done to "patch" a method that contains a bug
 * but for whatever reason cannot be fixed directly.
 *
 * Consider:
 *
 *      Ext.define('Ext.some.Class', {
 *          method: function () {
 *              console.log('Good');
 *          }
 *      });
 *
 *      Ext.define('Ext.some.DerivedClass', {
 *          extend : 'Ext.some.Class', // <-- This line is currently missing from the current docs 
 *                                  
 *          method: function () {
 *              console.log('Bad');
 *
 *              // ... logic but with a bug ...
 *
 *              this.callParent();
 *          }
 *      });
 *
 * To patch the bug in `DerivedClass.method`, the typical solution is to create an
 * override:
 *
 *      Ext.define('App.patches.DerivedClass', { // "patches" is written as "paches" in the current docs
 *          override: 'Ext.some.DerivedClass',
 *
 *          method: function () {
 *              console.log('Fixed');
 *
 *              // ... logic but with bug fixed ...
 *
 *              this.callSuper();
 *          }
 *      });