Extjs Store FAQs

While using Extjs store you will come across some common questions like how to reload a store or change its url etc.

Below is the listing of some of the extjs store FAQs and their answers.

Change store url dynamically :

store.proxy.url = newUrl;

Update or add store baseparams : 

store.baseParams = {

    sort : "name",

    selectedUser : store.getById(userId).data.userName

}

or

store.baseParams.selectedUser :  store.getById("10").data.userName;

Load store from another store : 

store2.loadData(store1.reader.xmlData);

//to load store with json data use store1.reader.jsonData

Reload the store :

 store.reload(store.lastOptions);

Load store with the value stored in local (javascript) variable :

store.loadData(localVariable); 

// localVariable contains the data to be loaded into the store.

Append data to existing store :

store.loadData(newData, true) //newData contains the data to be appended

Iterate over store records :

store.each(function(currentRecord) {

    alert(currentRecord.id); 

    // alerts record id for each store record

});

Remove a record from the store :

store.remove(recordToRemove);

//recordToRemove is the record object to be removed from store.

//This can also be an array if you want to remove multiple records.

//Use store.removeAll() to remove all the records

//If you know index of the record then use store.removeAt(recordIndex)