在数据对象中添加项目
Add items in data object
你好,我有这种格式的数据:
{
"data": [
{
"id": 1,
"title": "some title",
"body": "some body",
"coordinate": [
{
"id": 1,
"x": 10,
"y": 20,
"z": 30
},
{
"id": 2,
"x": 30,
"y": 20,
"z": 30
},
{
"id": 3,
"x": 20,
"y": 30,
"z": 30
},
{
"id": 4,
"x": 50,
"y": 40,
"z": 20
}
]
}
]
}
并拥有这个数据模型:
Ext.define('Book.model.Shops', {
extend: 'Ext.data.Model',
fields: [
{ name: 'id', type: 'int' },
{ name: 'title', type: 'string' },
{ name: 'body', type: 'string' },
{ name: 'coordinate', type: 'auto' },
]
})
我想在 "coordinate" 对象内的当前记录中添加新项目,但我不知道该怎么做。
当添加新记录时,我是这样的:
newRec = {
title: newTitle,
body: newBody,
};
store.add(newRec)
但是如何在对象中添加项目到当前记录"coordinate"&
你可以使用很多这样的模型
Ext.define("Book.model.Cordinate", {
扩展:'Ext.data.Model',
fields: [
{ name: 'id', type: 'int' },
{ name: 'y', type: 'string' },
{ name: 'y', type: 'string' },
{ name: 'z', type: 'string' }
]
});
Ext.define('Book.model.Shops', {
extend: 'Ext.data.Model',
fields: [
{ name: 'id', type: 'int' },
{ name: 'title', type: 'string' },
{ name: 'body', type: 'string' }
],
hasMany: {model: 'Book.model.Cordinate', name: 'coordinate'}
});
var shops = Ext.create('Book.model.Shops', {id: 1, title: 'some title'});
var coordinate = Ext.create('Book.model.Cordinate', {id: 1, y: 'test'});
var lcoordinate = shops.coordinate();
lcoordinate.add(coordinate);
Ext.Msg.alert(shops.get('title'));
Ext.Msg.alert(shops.coordinate().first().get('y'));
http://docs.sencha.com/extjs/4.1.2/#!/api/Ext.data.association.HasMany
你好,我有这种格式的数据:
{
"data": [
{
"id": 1,
"title": "some title",
"body": "some body",
"coordinate": [
{
"id": 1,
"x": 10,
"y": 20,
"z": 30
},
{
"id": 2,
"x": 30,
"y": 20,
"z": 30
},
{
"id": 3,
"x": 20,
"y": 30,
"z": 30
},
{
"id": 4,
"x": 50,
"y": 40,
"z": 20
}
]
}
]
}
并拥有这个数据模型:
Ext.define('Book.model.Shops', {
extend: 'Ext.data.Model',
fields: [
{ name: 'id', type: 'int' },
{ name: 'title', type: 'string' },
{ name: 'body', type: 'string' },
{ name: 'coordinate', type: 'auto' },
]
})
我想在 "coordinate" 对象内的当前记录中添加新项目,但我不知道该怎么做。 当添加新记录时,我是这样的:
newRec = {
title: newTitle,
body: newBody,
};
store.add(newRec)
但是如何在对象中添加项目到当前记录"coordinate"&
你可以使用很多这样的模型
Ext.define("Book.model.Cordinate", { 扩展:'Ext.data.Model',
fields: [
{ name: 'id', type: 'int' },
{ name: 'y', type: 'string' },
{ name: 'y', type: 'string' },
{ name: 'z', type: 'string' }
]
});
Ext.define('Book.model.Shops', {
extend: 'Ext.data.Model',
fields: [
{ name: 'id', type: 'int' },
{ name: 'title', type: 'string' },
{ name: 'body', type: 'string' }
],
hasMany: {model: 'Book.model.Cordinate', name: 'coordinate'}
});
var shops = Ext.create('Book.model.Shops', {id: 1, title: 'some title'});
var coordinate = Ext.create('Book.model.Cordinate', {id: 1, y: 'test'});
var lcoordinate = shops.coordinate();
lcoordinate.add(coordinate);
Ext.Msg.alert(shops.get('title'));
Ext.Msg.alert(shops.coordinate().first().get('y'));
http://docs.sencha.com/extjs/4.1.2/#!/api/Ext.data.association.HasMany