sumeru
Version:
A Realtime Javascript RIA Framework For Mobile WebApp
416 lines (364 loc) • 20.3 kB
JavaScript
var runnable = function(fw, getDbCollectionHandler , ObjectId){
//FIXME 引入library库能力
//var objUtils = require(__dirname + '/../library/obj.js');
var serverCollection = function(modelName){
if (typeof modelName == 'undefined') {
return null;
};
//publish基于的上层modelName
this.baseModel = modelName;
}
serverCollection.prototype = {
ObjectId : ObjectId,
_getWhereCondition : function(whereMap){
var _whereMap = {};
if(typeof whereMap == 'undefined'){
} else if(Object.prototype.toString.call(whereMap) == '[object Object]'){ //否则就是包含多个key value的object
_whereMap = whereMap;
}
return _whereMap;
},
resolveRef : function(items, callback){
//标记本层递归是否存在引用。
var that = this,
hasRef = false,
refCount = 0;
for (var i = 0, l = items.length; i < l; i++){
for (var j in items[i]){
//refence只会存放在数组或object对象里
if (Object.prototype.toString.call(items[i][j]) != '[object Array]'
&&Object.prototype.toString.call(items[i][j]) != '[object Object]') {
continue;
};
var candidate = items[i][j],
refInfo;
if (Object.prototype.toString.call(items[i][j]) == '[object Array]'){
for (var k = 0; k < candidate.length; k++) {
if (candidate[k].isReference && candidate[k].val) {
refInfo = candidate[k].val.split('::');
if(refInfo.length == 4 && refInfo[0] == '' && refInfo[1] == 'referenceID'){
hasRef = true;
refCount++;
var refModel = refInfo[2].replace(/Model\./, ''),
refId = refInfo[3];
(function(i, j, k, refModel, refId){
var item = items[i][j][k];
getDbCollectionHandler(refModel, function onGetDBCollectionHandler(err, handler){
if (err != null) {
throw err;
}
if (handler == null) {
throw new ReferenceError("'handler' is null");
}
handler.find({smr_id : ObjectId(refId)},{}/*,{limit:1}*/).toArray(function(err, subItems){
if(err){
return callback(err, []);
}
that.resolveRef(subItems, function(err, results){
if (results.length == 0) {
items[i][j][k] = '';
} else {
items[i][j][k] = results[0];
}
if (--refCount == 0) {
callback(err, items);
};
});
});
});
})(i, j, k, refModel, refId);
}
} //end if.isReference
};
}else{
if (candidate.isReference && candidate.val) {
refInfo = candidate.val.split('::');
if(refInfo.length == 4
&& refInfo[0] == ''
&& refInfo[1] == 'referenceID'){
hasRef = true;
refCount++;
var refModel = refInfo[2].replace(/Model\./, ''),
refId = refInfo[3];
(function(i, j, refModel, refId){
var item = items[i][j];
getDbCollectionHandler(refModel, function onGetDBCollectionHandler(err, handler){
if (err != null) {
throw err;
}
if (handler == null) {
throw new ReferenceError("'handler' is null");
}
handler.find({smr_id : ObjectId(refId)}, {}/*, {limit:1}*/).toArray(function(err, subItems){
if(err){
return callback(err, []);
}
that.resolveRef(subItems, function(err, results){
if (results.length == 0) {
items[i][j] = '';
} else {
items[i][j] = results[0];
}
if (--refCount == 0) {
callback(err, items);
};
});
});
});
})(i, j, refModel, refId);
}
} //end if.isReference
}
}
}
if (hasRef === false) {
callback(null, items);
};
},
/**
* @param options {sort : {'time' : -1}, limit : (pagesize + 1) * 5, skip : pagesize * 5}
*/
find : function(whereMap, options, callback, modelName){
if (arguments.length == 2) {
callback = options;
options = {};
};
var where = this._getWhereCondition.call(this, whereMap),
that = this;
getDbCollectionHandler(modelName?modelName:this.baseModel, function onGetDBCollectionHandler(err, handler){
if (err != null) {
faildCallback.call(this, "data_write_from_server_dberror", err);
throw err;
}
if (handler == null) {
faildCallback.call(this, "data_write_from_server_dberror", "'handler' is null");
throw new ReferenceError("'handler' is null");
}
handler.find(where, {}, options).toArray(function(err, items){
if (err) {
return callback(err, []);
};
//fw.dev('before resolve', JSON.stringify(items));
that.resolveRef(items, callback);
});
});
return true;
},
/**
* External Find, 三方数据查询
*
*/
extfind : function(/** pubname, arg1, arg2, arg3, callback */){
var args = Array.prototype.slice.call(arguments);
var modelName = this.baseModel;
var pubname = args.shift();
var callback = args.pop();
fw.external.doFetch(modelName, pubname, args, callback);
},
count : function(whereMap, callback, modelName){
var where = this._getWhereCondition.call(this, whereMap),
that = this;
getDbCollectionHandler(modelName?modelName:this.baseModel, function onGetDBCollectionHandler(err, handler){
if (err != null) {
faildCallback.call(this, "data_write_from_server_dberror", err);
throw err;
}
if (handler == null) {
faildCallback.call(this, "data_write_from_server_dberror", "'handler' is null");
throw new ReferenceError("'handler' is null");
}
handler.count(where, function(err, count){
if (err) {
return callback(err, 0);
};
callback(null, count);
});
});
return true;
},
insert: function(structData, successCallback, faildCallback, modelName){
var modelName = modelName || this.baseModel;
var doIt = (function(getDbCollectionHandler,modelName,faildCallback,successCallback,structData){
return function(){
getDbCollectionHandler(modelName, function onGetDBCollectionHandler(err, handler){
if (err != null) {
faildCallback.call(this, "data_write_from_server_dberror", err);
throw err;
}
if (handler == null) {
faildCallback.call(this, "data_write_from_server_dberror", "'handler' is null");
throw new ReferenceError("'handler' is null");
}
handler.insert(structData, null, successCallback);
});
};
})(getDbCollectionHandler,modelName,faildCallback,successCallback,structData);
this.runWithValidation(structData, modelName, doIt, faildCallback);
},
update: function(selector, structData, successCallback, faildCallback, modelName){
//fw.dev("updata::",structData);
var modelName = modelName || this.baseModel;
var doIt = (function(getDbCollectionHandler,modelName,faildCallback,successCallback,structData){
return function(){
getDbCollectionHandler(modelName, function onGetDBCollectionHandler(err, handler){
if (err != null) {
faildCallback.call(this, "data_write_from_server_dberror", err);
throw err;
}
if (handler == null) {
faildCallback.call(this, "data_write_from_server_dberror", "'handler' is null");
throw new ReferenceError("'handler' is null");
}
handler.update(selector, {
$set : structData
}, null, successCallback);
});
};
})(getDbCollectionHandler,modelName,faildCallback,successCallback,structData);
this.runWithValidation(structData, modelName, doIt, faildCallback);
},
remove: function(selector, successCallback, faildCallback, modelName){
var modelName = modelName || this.baseModel;
getDbCollectionHandler(modelName, function onGetDBCollectionHandler(err, handler){
if (err != null) {
throw err;
}
if (handler == null) {
throw new ReferenceError("'handler' is null");
}
handler.remove(selector, null, successCallback);
});
},
getDbCollectionHandler: function(){
return getDbCollectionHandler;
},
/**
* 返回验证失败的key value validation
*/
runWithValidation : function(dataMap, modelName, successCallback, faildCallback){
if(!fw.config.get('serverValidation')){successCallback();return;};
var successObjs = [],//successObjs 现在暂时存下来，不发送到客户端。
faildObjs = [];
//validation分同步/异步，DB操作 和 validation结果 需要在同步和异步validation都结束之后才能做。
var cbHandler = Library.asyncCallbackHandler.create(
function(){
if(faildObjs.length>0){
for(var i=0,ilen=faildObjs.length;i<ilen;i++){
faildObjs[i][fw.idField] = dataMap[fw.idField];
}
fw.log("validation faild");
faildCallback.call(this, "data_write_from_server_validation", faildObjs);
}else{
fw.dev("validation success");
faildCallback.call(this, "data_write_from_server_validation", faildObjs);
successCallback();
}
}
);
cbHandler.add();//
var oneField,label,validations,validation,validationMsg,type,value,resultObj;
var _model = fw.server_model.getModelTemp(modelName);
var createFaildObj = function(key,value,validationResult){
var _obj = {};
_obj["key"] = key;
_obj["value"] = value;
_obj["msg"] = validationResult["msg"];
return _obj;
};
for(var p in dataMap){
oneField = _model[p];
if(typeof oneField != 'undefined'){
label = oneField["label"]||p;
validation = oneField["validation"];
validationMsg = oneField["validationMsg"];
type = oneField["type"];
value = dataMap[p];
if(validation){
if(Library.objUtils.isString(validation)){
validations = validation.split("|");
}else{
validations = [validation];
}
for(var i=0,len = validations.length;i<len;i++){
var _validation = validations[i];
//由于length是有参数的所以单独处理
var _lengthMatch = (new RegExp("([min,max]*length)\\[([0-9]+)[\\,]*([0-9]*)\\]")).exec(_validation);
if(_lengthMatch){
if(_lengthMatch.length>=3){
_lengthMatch.shift();
_lengthMatch.unshift(value);
_lengthMatch.unshift(p);
_lengthMatch.unshift(label);
var validationResult = fw.validation._svalidation.apply(this,_lengthMatch);
if(validationResult){//这个分支不可能有asyn
faildObjs.push(createFaildObj(p,value,validationResult));
}
}
}else{
if(fw.validation._isasynvali(_validation)){
cbHandler.add();
getDbCollectionHandler(modelName, (function(label,p,value,_validation,modelObj){
return function onGetDBCollectionHandler(err, handler){
if (err != null) {
cbHandler.decrease();
throw err;
}else if (handler == null) {
cbHandler.decrease();
throw new ReferenceError("'handler' is null");
}else{
fw.validation._svalidation.call(handler,label,p,value,_validation, function(err,validationResult){
if(!err){
fw.dev("asyn validation end");
if(validationResult === true){
//验证通过
//faildCallback.call(this, "data_write_from_server_validation", validationResult);
}else{
var resultObj = {};
resultObj.value = validationResult;
resultObj.msg = fw.validation._getvalidationmsg(validationResult,label,_validation);
faildObjs.push(createFaildObj(p,value,resultObj))
}
}else{
faildCallback.call(this, "data_write_from_server_dberror", validationResult);
}
cbHandler.decrease();
},modelObj);
}
}
})(label,p,value,_validation,Library.objUtils.extend({},dataMap)));
}else{
var validationResult = fw.validation._svalidation.call(this,label,p,value,_validation);
if(validationResult){
faildObjs.push(createFaildObj(p,value,validationResult));
}
}
}
}
}else if(type=="model"){
/*server 上暂无级联验证
}*/
}
}else{
/**
var value = dataMap[p];
faildObjs.push(createFaildObj(p,value,'没有定义这个字段。'));
*/
delete dataMap[p];
fw.dev("validation engine delete the undefined field "+p);
}
};
fw.dev("_+_+______________________+_+_+_+_+_+_+__++");
fw.dev(JSON.stringify(cbHandler));
fw.dev("_+_+______________________+_+_+_+_+_+_+__++");
cbHandler.enableCallback();
cbHandler.decrease();
}
};
exports.create = serverCollection;
}
if(typeof module !='undefined' && module.exports){
module.exports = function(fw, getDbCollectionHandler , ObjectId){
runnable(fw, getDbCollectionHandler , ObjectId);
return exports;
}
}