DataStoreManager.js
3.47 KB
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Ext.define('treps.controller.Data.Store.DataStoreManager', {
singleton : true,
constructor: function() {
},
pushField : function(fields, fieldName, fieldType, timeFormat)
{
if (fieldType == 'float')
fields.push(Ext.create('Ext.data.Field', {
name: fieldName,
type: 'float',
convert: function(v, record)
{
return parseFloat(v);
}
}));
else if (fieldType == 'int')
fields.push(Ext.create('Ext.data.Field', {
name: fieldName,
type: 'int',
convert: function(v, record)
{
return parseInt(v);
}
}));
else
fields.push(Ext.create('Ext.data.Field', {name: fieldName}));
},
//create an array of data fields
createModelFields : function(fields)
{
var me = this;
var modelFields = [];
Ext.each(fields,function(field)
{
if (field.dimensions.length == 0)
me.pushField(modelFields,field.id,field.type,field.timeformat);
else
for (var i = 0; i < field.dimensions[0].size; ++i)
//create one field for each components
me.pushField(modelFields,field.id+"_TREPSID"+i,field.type,field.timeformat);
});
return modelFields;
},
//get a model from model name
getModel : function(modelName)
{
if (!Ext.ClassManager.isCreated(modelName))
return null;
return Ext.ModelManager.getModel(modelName);
},
//define a new model or re-use the existing one and set new fields
defineModel : function(modelName, modelFields)
{
var model = this.getModel(modelName);
if (model != null)
{
//if the model exist, just set new fields
model.setFields(modelFields);
return;
}
//Create new model
Ext.define(modelName, {
extend: 'Ext.data.Model',
fields: modelFields
});
},
//get store from store id
getStore : function(storeId)
{
return Ext.getStore(storeId);
},
//
reconfigureStore : function(storeId, modelName, directAPIRead, onLoad)
{
var model = this.getModel(modelName);
if (model == null)
{
treps.Messages.showError('Undefined model '+modelName);
return null;
}
var store = this.getStore(storeId);
if (store != null)
{
store.removeAll();
store.clearListeners();
Ext.StoreManager.unregister(storeId);
delete store;
}
store = Ext.create('Ext.data.Store', {
model : model,
storeId : storeId,
buffered: true,
leadingBufferZone: treps.Constants.GRID_BUFF_LEADINGZONE,
pageSize: treps.Constants.GRID_BUFF_PAGESIZE,
purgePageCount: 0,
autoLoad: true,
listeners: {
load : function(store, records, successful, eOpts)
{
if (onLoad != null)
onLoad.call(this, store, records, successful, eOpts);
},
prefetch : function(store, records, successful, operation, eOpts)
{
if (!successful || (operation == null) || (operation.response == null) || (operation.response.result == null))
{
//treps.Messages.showError("Error occured during get data process - Cannot get request answer.");
return;
}
if (!operation.response.result.success)
{
if (operation.response.result.error != null)
treps.Messages.showError("Error occured during get data process - "+operation.response.result.error);
else
treps.Messages.showError("Error occured during get data process - Unknown error");
}
}
},
proxy: {
type: 'direct',
extraParams: {id: treps.model.Session.get('id')},
reader : {
type : 'json',
root : 'data',
totalProperty : 'total'
},
api: {
read : directAPIRead
}
}
});
return store;
}
});