Question

我们正在尝试在JSONStore中存储任务列表，并在用户点击fetch按钮时检索它。

观察到的行为：我们间歇地看到JSONStore抛出exception并且根本不会获取存储的任务。相同的源代码，重新部署时工作正常。意思是，任务按预期存储和提取。

抛出异常消息为{"src":"find","err":22,"msg":"INVALID_SEARCH_FIELD","col":"CollectionTasksName","usr":"jsonstore","doc":{},"res":{}}

我们的写作和阅读功能如下：

/**
* Function to add data to JSONStore collection
* @param collName: Collection name to add to
* @param dataToStore: data to store
* @param flag: flag for operation, if CLEAR, collection is cleared before adding the new data
* @param returnFunc: callback function for results handling 
*/
function Storage_add(collName,dataToStore,flag,returnFunc) {
WL.Logger.debug('SU: Storage add function called.');
console.log('SU: Storage add function called.');

var result = {'result': true};
var collections = {};
collections[collName] = {
        searchFields: {'id': 'string', 'processId' : 'string'}
};
var addFunc = function(collectn,data2Store,returnFunc) {
    WL.JSONStore.init(collections)
    .then(function() {
        WL.Logger.debug('Inside addFunc while adding to collection:'+collName);
        console.log('Inside addFunc while adding to collection:'+collName);
        WL.JSONStore.get(collName).add(data2Store, {push:true})
            .then(function (dataAdded) {
                WL.Logger.debug('Data added to the collection '+collName+'--Success');
                console.log('Data added to the collection '+collName+'--Success');
                returnFunc({'result': true});
            })
            .fail(function (errorObject) {
                // Handle failure for any of the previous JSONStore operations (init, add).
                WL.Logger.debug('Error adding data to the collection:'+collectn);
                console.log('Error adding data to the collection:'+collectn);
                returnFunc({'error':'Error adding the data'});
            });     
    })
    .fail(function (errobject) {
        WL.Logger.debug(errobject.toString());
        console.log(errobject.toString());
        returnFunc({'error':'JSONStore Error adding the data'});
    });
};
if(flag=='CLEAR') {
    WL.JSONStore.init(collections)
    .then(function() {
        WL.Logger.debug('With flag clear, opened collection:'+collName);
        console.log('With flag clear, opened collection:'+collName);
        WL.JSONStore.get(collName).removeCollection()
            .then(function () {
                WL.Logger.debug('Cleared collection --Success');
                console.log('Cleared collection --Success');
                // Handle success.
                addFunc(collName,dataToStore,returnFunc);
            })
            .fail(function (errorObject) {
                // Handle failure for any of the previous JSONStore operations (init, add).
                WL.Logger.debug('Error clearing collection:'+collName);
                console.log('Error clearing collection:'+collName);
                returnFunc({'error':'Error clearing the data'});
            });     
    });

} else {
    WL.Logger.debug('flag is not set as clear. About to call addFunc');
    console.log('flag is not set as clear. About to call addFunc');
    addFunc(collName,dataToStore,returnFunc);
}
   }

阅读功能：

/**
* Function to fetch a collection data in array form using its name
* @param collName
* @param returnFunc: callback function for results handling
*/
function Storage_getArray(collName,returnFunc) {
console.log('SU: Storage get collection Array called for Collection:'+collName);
WL.Logger.debug('SU: Storage get collection Array called for Collection:'+collName);
var returnArray = [];

var collectionName = collName;
var JSONStoreCollections = {};
JSONStoreCollections[collectionName] = {};
JSONStoreCollections[collectionName].searchFields = {'id': 'string', 'processId' : 'string'};

var funcRes = function(res) {
    WL.Logger.debug('SU: Inside funcRes. No. of results:'+res.length);
    console.log('no. of results:'+res.length);
    WL.Logger.debug('res stringified:'+JSON.stringify(res));
    console.log('res stringified:'+JSON.stringify(res));
    if (res.length >= 1) {
        console.log('res has values.');
        $.each(res, function (index, val) {
            returnArray.push(val.json); //push values here
        });
    }
    WL.Logger.debug('SU: About to returnArray with length:'+returnArray.length);
    console.log('About to returnArray with length:'+returnArray.length);
    returnFunc(returnArray);
};

WL.Logger.debug('SU: About to start Collection '+collName+'. collections var:'+JSON.stringify(JSONStoreCollections));
console.log('SU: About to start Collection '+collName+'. collections var:'+JSON.stringify(JSONStoreCollections));
WL.JSONStore.init(JSONStoreCollections)
.then(function () {
          //WL.Logger.debug('ts Init done');
        WL.Logger.debug('SU: Collection init done. about to find all');
        console.log('SU: Collection init done. about to find all');
      return WL.JSONStore.get(collName).findAll();
 })
.then(funcRes)
.fail(function (err) {
        WL.Logger.debug('SU: Error caught for JSONStore init for collection:'+collName+'. err:'+err.toString());
        console.log('SU: Error caught for JSONStore init for collection:'+collName+'. err:'+err.toString());
        var retErr = {"error": "JSONStore"};
        returnFunc(err);
});
}

Answer 1

此问题可能是产品中的缺陷，并作为支持票据/ PMR号码28639,756,000的一部分处理。如果需要，将在未来的iFix版本中提供修复。

JSON Store在MobileFIrst混合应用程序中间歇性地失败

1 个答案: