blocks|key|895402|text|您需要使用'extraParams‘代理属性来代替Ext3中的baseParams代理属性。ExtJS+4中的等效JsonStore如下所示：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|895403|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:+''
++++++++}
++++}
});|code-block|syntax|javascript|895404|据我所知，HTTP传输方法是根据您要完成的任务，根据RESTful原则自动设置的。例如，如果加载存储，则使用GET请求；创建新记录时使用POST，等等。|895405|但是，如果需要，您可以通过覆盖代理的actionMethods属性来覆盖此属性：|895406|var+store+=+new+Ext.data.Store({
++++model:+'YourModel',
++++proxy:+{
++++++++type:+'ajax',
++++++++url+:+'Time/Timesheet',
++++++++root:+'Data',
++++++++actionMethods:+{
++++++++++++read:+'POST'
++++++++},
++++++++extraParams:+{
++++++++++++StartDate:+'',
++++++++++++EndDate:+''
++++++++}
++++}
});|895407|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|D|7|S|8|@]|9|@]|A|$E|F]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

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:

<pre><code>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: ''
 }
 }
});
</code></pre>

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:

<pre><code>var store = new Ext.data.Store({
 model: 'YourModel',
 proxy: {
 type: 'ajax',
 url : 'Time/Timesheet',
 root: 'Data',
 actionMethods: {
 read: 'POST'
 },
 extraParams: {
 StartDate: '',
 EndDate: ''
 }
 }
});
</code></pre>

blocks|key|895420|text|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}});|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|895421|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>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}});
</code></pre>

blocks|key|678650|text|proxy额外参数的问题:+proxy对于使用此代理创建的所有商店都是通用的！示例：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|678651|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+!!!
++++}
});++++|code-block|syntax|javascript|678652|我建议你创建自己的存储类来实现基本参数，如果你想在调用同一类型的几个存储之前设置参数。|678653|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+%7C%7C+{};
++++++++//+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+%7C%7C+{};
++++++++options.params+=+options.params+%7C%7C+{};
++++++++Ext.applyIf(options.params,+me.baseParams);
++++++++me.callParent([options]);
++++}
});|678654|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Problem with proxy extra params: proxy is common to all stores created with this proxy!
Example:

<pre><code>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 !!!
 }
}); 
</code></pre>

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.

<pre><code>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]);
 }
});
</code></pre>

In extjs3.x I used the stores <code>baseParams</code> 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 <code>GET</code> or a <code>POST</code> method by using the proxy <code>method</code> config property. What should I do instead of this? 

My ExtJs 3 code -> 

<pre><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
</code></pre>

ExtJs4 - Store baseParams config property?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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在extjs3.x中，我使用stores的baseParams配置属性来指定用于加载存储的参数。这个属性在extjs 4中已经不存在了，我应该怎么做来代替它呢？另外，在extjs3中，我可以通过使用代理method配置属性来指定存储代理是GET还是POST方法。我应该怎么做而不是这样呢？我的ExtJs3代码->   v...

问ExtJs4 -存储baseParams配置属性？
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问ExtJs4 -存储baseParams配置属性？
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