ExtJs4 - Store baseParams config property?
Solution 1
You need to use the 'extraParams' proxy property in place of the baseParams one from Ext 3. An equivalent JsonStore in ExtJS 4 looks like this:
Ext.define('YourModel', {
extend: 'Ext.data.Model',
fields: ['field1', 'field2']
});
var store = new Ext.data.Store({
model: 'YourModel',
proxy: {
type: 'ajax',
url : 'Time/Timesheet',
root: 'Data',
extraParams: {
StartDate: '',
EndDate: ''
}
}
});
As far as I know, the HTTP transport method is set automatically according to RESTful principles according to what you're trying to accomplish. For example, if you load the store a GET request is used; creating a new record uses a POST, etc.
You can override this if necessary though, by overriding the actionMethods property of the proxy:
var store = new Ext.data.Store({
model: 'YourModel',
proxy: {
type: 'ajax',
url : 'Time/Timesheet',
root: 'Data',
actionMethods: {
read: 'POST'
},
extraParams: {
StartDate: '',
EndDate: ''
}
}
});
Solution 2
Problem with proxy extra params: proxy is common to all stores created with this proxy! Example:
var countries1, countries2;
countries1 = Ext.create("MyApp.store.Countries");
countries1.getProxy().setExtraParam("countriesId", 1) // add parameter 'countriesId' = 1
countries1.load();
countries2 = Ext.create("MyApp.store.Countries");
countries2.getProxy().setExtraParam("countriesId", 2) // add parameter 'countriesId' = 2
countries2.load({
callback: function(){
countries1.load(); // 'countriesId' is no more 1, but 2 !!!
}
});
I advise you to create your own store class which implements base parameters if you want to set parameters before calling 'load' function with several stores of the same type.
Ext.define("MyStore",{
extend: "Ext.data.Store",
baseParams: null,
/**
* add base parameter to store.baseParams
* @param {Object} key/value object: {key: value}
*/
addBaseParam: function(obj){
Ext.apply(this.baseParams, obj);
},
/**
* add several base parameters to store.baseParams
* @param {Array}: array of key/value object: [{key1: value1, key2: value2,...}]
*/
addBaseParams: function(objects){
var me = this;
if (Ext.isArray(objects)){
Ext.each(objects, function(obj){
me.addBaseParam(obj);
})
} else if (objects){
me.addBaseParam(objects);
}
},
/**
* reset base parameters
*/
resetBaseParams: function(){
this.baseParams = {};
},
/**
* constructor
* @param {object} config
*/
constructor: function(config) {
var me = this;
// manage base params
me.baseParams = me.baseParams || {};
// call parent
me.callParent(arguments);
},
/**
* override load method to add base params to request params
* @param {Object} options
*/
load: function(options){
var me = this;
options = options || {};
options.params = options.params || {};
Ext.applyIf(options.params, me.baseParams);
me.callParent([options]);
}
});
Solution 3
var DataStore = new Ext.data.Store({
model: 'TestItem',
id: 'DataStore',
proxy: {
type: 'ajax',
url : 'db_categoria.php',
actionMethods: {
read: 'POST'
},
extraParams: {
task: 'LISTING',
},
reader: {
root: 'results',
totalProperty: 'total',
id: 'id'
}
}
});
DataStore.load({params: {start: 0, limit: 20}});
Comments
-
shane87 over 3 years
In extjs3.x I used the stores
baseParams
config property to specify parameters used to load the store.
This property no longer exists in extjs 4. What should I do instead of this?Also in extjs3 I was able to specify wether the stores proxy was a
GET
or aPOST
method by using the proxymethod
config property. What should I do instead of this?My ExtJs 3 code ->
var store = new Ext.data.JsonStore({ root: 'Data', baseParams: { StartDate: '', EndDate: ''' },//baseParams proxy: new Ext.data.HttpProxy({ url: 'Time/Timesheet', method: 'POST' })//proxy });//new Ext.data.JsonStore
-
shane87 about 13 yearsThanks for your response. I caould see that from the API about the automatic setting of the HTTP transport method. I need a way to override this as I want to use a POST request to load my store as the GET request is restricted in length. Any ideas? and Thanks again.
-
Craig about 13 years@shane87 Yep, did some digging through the docs and looks like there's a way to override it. I've updated the answer.