Breeze 使用dataproperties数组的addentitytype不工作
我正在和breeze一起玩打字脚本。我正在尝试使用以下typescript代码创建类型:Breeze 使用dataproperties数组的addentitytype不工作,breeze,Breeze,我正在和breeze一起玩打字脚本。我正在尝试使用以下typescript代码创建类型: var eto = <breeze.EntityTypeOptions>new Object(); eto.shortName = "type1"; eto.namespace = "mod1"; eto.dataProperties = new Array(); eto.autoGeneratedKeyType = breeze.AutoGeneratedKeyT
var eto = <breeze.EntityTypeOptions>new Object();
eto.shortName = "type1";
eto.namespace = "mod1";
eto.dataProperties = new Array();
eto.autoGeneratedKeyType = breeze.AutoGeneratedKeyType.Identity;
var dpo = <breeze.DataPropertyOptions>new Object();
dpo.name = "id";
dpo.dataType = breeze.DataType.Int32;
dpo.isNullable = false;
dpo.isPartOfKey = true;
var dp = new breeze.DataProperty(dpo);
eto.dataProperties.push(dp);
dpo = <breeze.DataPropertyOptions>new Object();
dpo.name = "prop1";
dpo.dataType = breeze.DataType.Int32;
dpo.isNullable = false;
dpo.isPartOfKey = false;
dp = new breeze.DataProperty(dpo);
eto.dataProperties.push(dp);
var et = new breeze.EntityType(eto);
store.addEntityType(et);
store.registerEntityTypeCtor(et.shortName, type1);
当“dataProperties”是一个数组(如上所述)而不是一个对象时,似乎会出现问题。。。我是一个javascript新手,所以我怀疑我做错了什么。。。但我怀疑breeze的代码如下,特别是第行:
propObj.forEach(entityType.addProperty);
将永远不会工作,因为addProperty方法的实现使用了“this”上下文。。。同样,我可能错了,如果有人能帮我一把,我将不胜感激。多谢各位
// Used by both ComplexType and EntityType
function addProperties(entityType, propObj, ctor) {
if (!propObj) return;
if (Array.isArray(propObj)) {
propObj.forEach(entityType.addProperty);
} else if (typeof (propObj) === 'object') {
for (var key in propObj) {
if (__hasOwnProperty(propObj, key)) {
var value = propObj[key];
value.name = key;
var prop = new ctor(value);
entityType.addProperty(prop);
}
}
} else {
throw new Error("The 'dataProperties' or 'navigationProperties' values must be either an array of data/nav properties or an object where each property defines a data/nav property");
}
}
编辑:从第1.3.5版开始,该问题已得到解决,现在可用
好的,这是一个bug,将在今天晚些时候或明天发布的版本中修复。。。。感谢您的发现和报告。:) 与此同时,有一个简单的解决办法。只需在添加属性之前创建EntityType。i、 (使用原始js而不是TypeScript,但你会明白的)
// Used by both ComplexType and EntityType
function addProperties(entityType, propObj, ctor) {
if (!propObj) return;
if (Array.isArray(propObj)) {
propObj.forEach(entityType.addProperty);
} else if (typeof (propObj) === 'object') {
for (var key in propObj) {
if (__hasOwnProperty(propObj, key)) {
var value = propObj[key];
value.name = key;
var prop = new ctor(value);
entityType.addProperty(prop);
}
}
} else {
throw new Error("The 'dataProperties' or 'navigationProperties' values must be either an array of data/nav properties or an object where each property defines a data/nav property");
}
}
var eto = {}
eto.shortName = "type1";
eto.namespace = "mod1";
eto.dataProperties = new Array();
eto.autoGeneratedKeyType = breeze.AutoGeneratedKeyType.Identity;
var et = new breeze.EntityType(eto);
var dpo = {};
dpo.name = "id";
dpo.dataType = breeze.DataType.Int32;
dpo.isNullable = false;
dpo.isPartOfKey = true;
var dp = new breeze.DataProperty(dpo);
et.addProperty(dp);
dpo = {};
dpo.name = "prop1";
dpo.dataType = breeze.DataType.Int32;
dpo.isNullable = false;
dpo.isPartOfKey = false;
dp = new breeze.DataProperty(dpo);
et.addProperty(dp);
store.addEntityType(et);