I am trying to delete multiple lines from the table. But I am getting a mime error.
Please help me to resolve it.
eg: enter link description here
Thanks and Regards,
Vicky.
I changed your code a little bit so it can be running in JSBin.
The service http://services.odata.org/V2/(S(2pxev2v2zqtidlzbqzhncots))/OData/OData.svc/Categories does not support batch request for DELETE. See the response body. If you want to do multiple deletion, you can send multiple DELETE question one by one using ODataModel.remove
<?xml version="1.0" encoding="utf-8" standalone="yes"?>
<error xmlns="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata">
<code/>
<message xml:lang="en-US">
Content is unexpected for the Delete operation.
</message>
</error>
Also For submitBatch(fnSuccess?, fnError?, bAsync?), the document indicates:
{function} fnSuccess?
a callback function which is called when the batch request has been successfully sent. Note: There might have errors occured in the single batch operations. These errors can be accessed in the aErrorResponses parameter in the callback handler. The handler can have the following parameters: oData, oResponse and aErrorResponses.
You have to check the parameter aErrorResponses in the success function callback to see if there is any error occurred. See the following for batch delete and check error responses.
var indices = oTable.getSelectedIndices();
if (indices.length == 0) {
alert("Please Select a row to Delete");
return;
} else {
alert("selected " + indices);
var batchChanges = [];
for (var i = 0; i < indices.length; i++) {
var selectedRow = oTable.getRows()[i];
var selectedId = selectedRow.getCells()[0].getValue();
var selectedName = selectedRow.getCells()[1].getValue();
var del = m.createBatchOperation(
"Categories(" + selectedId + ")",
"DELETE"
);
batchChanges.push(del);
}
m.addBatchChangeOperations(batchChanges);
m.submitBatch(function(oData, oResponse, aErrorResponses) {
if (aErrorResponses.length > 0) {
alert(aErrorResponses[0].response.body);
} else {
m.refresh();
m.clearBatch();
alert("success");
}
}, function(err) {
alert("error occured");
});
}
Related
In the below cloud code i would like to get a feedback of the saveAll function but after calling the code from my client in the parse Logs page i can only see:
I2014-10-08T15:28:32.930Z] v249: Ran cloud function acceptMeetingBis for user dyGu143Xho with:
Input: {"meetingId":"bUSTGNhOer"}
Result: Meeting accepted
Here is my cloud code:
Parse.Cloud.define("acceptMeetingBis", function(request, response) {
var userAcceptingTheMeeting = request.user;
var meetingId = request.params.meetingId;
var changedObjects = [];
var queryForMeeting = new Parse.Query("MeetingObject");
queryForMeeting.equalTo("objectId", meetingId);
queryForMeeting.first({
success: function(meeting) {
var userCreatorOfMeeting = meeting.get("user");
userAcceptingTheMeeting.increment("acceptedMeetings", +1);
changedObjects.push(userAcceptingTheMeeting);
meeting.add("participantsObjectId", userAcceptingTheMeeting.id);
if (meeting.get("participantsObjectId").length === meeting.get("meetingNumberOfPersons")) {
meeting.set("isAvailable", false);
}
changedObjects.push(meeting);
Parse.Object.saveAll(changedObjects, {
success: function(objects) {
console.log("Successfully saved objects"); //this line doesn't show up
response.success("objects saved");
},
error: function(error) {
// An error occurred while saving one of the objects.
response.error(error);
}
});
//future query and push notifications will go here
response.success("Meeting accepted");
},
error: function() {
response.error("Failed to accept the meeting");
}
});
});
I will also need to add some push and another nested query after the saveAll() but before doing/trying that i would like to know if this is the right method to use or if i have to build the code in a different way. I'm new to javascript and honestly i'm struggling to understand some concepts, like promises. Any help would be much appreciated.
Your call to
Parse.Object.saveAll
is asynchronous, and you call
response.success("Meeting accepted")
immediately after making the asynchronous call, which ends the cloud code running of the method. If you simply replace the
response.success("objects saved")
with
response.success("Meeting accepted")
you should get what you want.
I didn't see the rest of your question about promises. You should check out Parse's documentation on chaining promises, which is what you want here.
Essentially, here's what you'll want to do:
Parse.Cloud.define("acceptMeetingBis", function(request, response) {
var userAcceptingTheMeeting = request.user;
var meetingId = request.params.meetingId;
var changedObjects = [];
var meetingToAccept;
var queryForMeeting = new Parse.Query("MeetingObject");
queryForMeeting.get(meetingId).then(function(meeting) {
meetingToAccept = meeting;
var userCreatorOfMeeting = meeting.get("user");
userAcceptingTheMeeting.increment("acceptedMeetings", +1);
return userAcceptingTheMeeting.save();
}).then(function(userWhoAcceptedMeetingNowSaved) {
meetingToAccept.add("participantsObjectId", userWhoAcceptedMeetingNowSaved.id);
if (meetingToAccept.get("participantsObjectId").length === meetingToAccept.get("meetingNumberOfPersons")) {
meetingToAccept.set("isAvailable", false);
}
return meetingToAccept.save();
}).then(function(savedMeeting) {
response.success("Meeting accepted");
}, function(error) {
response.error("Failed to accept the meeting");
});
});
For each asynchronous action you want to do, perform it at the end of one of the .then functions and return the result (it returns a promise). Keep adding .then functions until you're done all the work you want to do, at which point call response.success.
My Parse cloud code is structured like so:
Parse.Cloud.define("eBayCategorySearch", function(request, response) {
url = 'http://svcs.ebay.com/services/search/FindingService/v1?SECURITY-APPNAME=*APP ID GOES HERE*';
Parse.Cloud.httpRequest({
url: url,
params: {
'OPERATION-NAME' : findItemsByKeywords,
'SERVICE-VERSION' : '1.12.0',
'RESPONSE-DATA-FORMAT' : JSON,
'callback' : _cb_findItemsByKeywords,
'itemFilter(3).name=ListingType' : 'itemFilter(3).value=FixedPrice',
'keywords' : request.params.item,
// your other params
},
success: function (httpResponse) {
// deal with success and respond to query
},
error: function (httpResponse) {
console.log('error!!!');
console.error('Request failed with response code ' + httpResponse.status);
}
});
});
and I call the function from within my iOS app like so:
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if (sender != self.nextButton) return;
if (self.itemSearch.text.length > 0) {
[PFCloud callFunctionInBackground:#"eBayCategorySearch"
withParameters:#{#"item": self.itemSearch.text}
block:^(NSNumber *category, NSError *error) {
if (!error) {NSLog(#"Successfully pinged eBay!");
}
}];
}
// Get the new view controller using [segue destinationViewController].
// Pass the selected object to the new view controller.
}
Essentially what I want to do is take whatever search query a user types into the itemSearch field, ping eBay's database, and return the categoryID with the most results. However, rather than logging "Successfully pinged eBay!", Parse is giving the following error: Error: function not found (Code: 141, Version: 1.2.18)
I'm guessing there is something wrong with the function itself. I have seen several examples of that error message when indeed it was the function malfunctioning, not missing.
In the cloud code guide, I found this example:
Parse.Cloud.define("averageStars", function(request, response) {
var query = new Parse.Query("Review");
query.equalTo("movie", request.params.movie);
query.find({
success: function(results) {
var sum = 0;
for (var i = 0; i < results.length; ++i) {
sum += results[i].get("stars");
}
response.success(sum / results.length);
},
error: function() {
response.error("movie lookup failed");
}
});
});
This function calls response.success and response.error, depending on state. It seems yours do not.
Check your success Function. It is not calling `response.success(); .
Also go to the dashboard and check if your function is really updated at main.js because the error message says that "function is not defined".
Just been caught out myself. Problem in my case was very simple
Made a mistake using parse new, and ended up creating a new project called "3" rather than working on the 3rd project in the list. So my Cloud Code function didn't get uploaded to the app I was working on
I am trying to make a POST request.
Here my code:
var myModel = new MydModel({
content: "ciao"
});
console.log(myModel.get("content")); // "ciao"
myModel.save();
If I look to the network activity it looks like this:
The response part {id:0, content:"", ……}
In the header part: Request Payload {"content":"ciao"}
Here my model:
define([], function () {
var MyModel = Backbone.Model.extend({
url: function url ()
{
return "http://localhost/users";
}
});
return MyModel;
});
Is it my problem or is it in the server part?
send/receive vs request/response
a server receives requests and sends responses
a client sends requests and receives responses
in short
if {id:0, content:"", ……} (the response) is wrong, it's your server
if {"content":"asdasdsa"} (the request) is wrong, it's your client
There is little problem with receiving JSON-payload that "Backbone-client" sends to your Apache-server.
All you need to do is to manually parse JSON-payload from input on the server side ("php://input", for PHP), like this:
if($_SERVER['REQUEST_METHOD'] == 'PUT' || $_SERVER['REQUEST_METHOD'] == 'POST') {
$postStr = file_get_contents("php://input");
//json_decode throws error or returns null if input is invalid json
try {
$json = json_decode($postStr, true);
if(empty($json)) {
throw new Exception("Not valid json");
}
//must not be json, try query str instead
} catch(Errfor $e) {
$postVars = parse_str($postStr);
foreach($postVars as $key=>$data) {
$_POST[$key] = $data;
}
}
}
Full explanation you can find here:
http://colinbookman.com/2014/04/08/php-puts-posts-and-backbone-js/
I'm currently developing a Firefox add-on(using https://addons.mozilla.org/en-US/developers/docs/sdk/1.0/ ) that consumes an API where the return data is in xml.
My problem is that I need to parse the returned data, and would like to do that using a xml object.
Since the request module only supports JSON and Text ( https://addons.mozilla.org/en-US/developers/docs/sdk/1.0/packages/addon-kit/docs/request.html#Response ) I need to convert the response.text to XML.
The code looks like this:
var Request = require('request').Request
.......
var req = Request({
url: https://to-the-api.com,
content: {
op: 'get-the-data-op',
password: "super-sec",
user: "username"
},
onComplete: function (response) {
dataAsText = response.text;
console.log("output: " + dataAsText);
}
});
req.post();
I have tried to user (new DOMParser).parseFromString(response.text, 'text/xml') but unfortunately it just fails with a error like ReferenceError: DOMParser is not defined
The question is if anyone of you guys have been able to create a Xml object inside a Firefox add-on, and if so, how?
Looks like the capability to parse response as xml was present, but has been removed. check out this bugzilla reference
Can't you use a normal XMLHttpRequest if you want to process the response as XML?
If DOMParser is unavailable you can try E4X:
var xml = new XML(response.text);
alert(xml.children().length());
You want to use the XMLHttpRequest object to handle your xhr request. Then when you get a response back access the responseXML object of the request variable. In the responseXML you'll have the documentElement and can use the querySelectorAll or querySelector to find elements you want. In each element you want just grab the textContent you need.
Here's an example to get you going (this looks for the 'xmls' element in the response):
var request = new require("xhr").XMLHttpRequest();
request.open('GET', 'https://to-the-api.com', true);
request.onreadystatechange = function (aEvt) {
if (request.readyState == 4) {
if(request.status == 200) {
var xmls = request.responseXML.documentElement.querySelectorAll("xmls");
for (var i = 0; i < xmls.length; i++) {
console.log("xml", i, xmls[i], xmls[i].textContent);
}
}
else {
console.log('Error', request.responseText);
}
}
};
request.send(null);
i am trying to accomplish a two way communication request response in my firefox sidebar extension, i have a file named event.js this resides on the content side, i have another file called sidebar.js file which is residing in the xul. I am able to communicate from event.js to sidebar.js file using the dispatchEvent method. my event in turn raises a XMLHttpRequest in sidebar.js file which hits the server and sends back the response. Now, here i am unable to pass the response to the event.js file. I want the response to be accessed in the event.js file. Till now i have achieved only one way communication. Please help me in getting the two way communication.
Code is as follows:
// event.js file
// This event occurs on blur of the text box where i need to save the text into the server
function saveEvent() {
var element = document.getElementById("fetchData");
element.setAttribute("urlPath", "http://localhost:8080/event?Id=12");
element.setAttribute("jsonObj", convertToList);
element.setAttribute("methodType", "POST");
document.documentElement.appendChild(element);
var evt = document.createEvent("Events");
evt.initEvent("saveEvent", true, true);
element.dispatchEvent(evt);
//Fetching the response over here by adding the listener
document.addEventListener("dispatchedResponse", function (e) { MyExtension.responseListener(e); }, false, true);
}
var MyExtension = {
responseListener: function (evt) {
receivedResponse(evt.target.getAttribute("responseObject"));
}
}
function receivedResponse(event) {
alert('response: ' + event);
}
// sidebar.js file
window.addEventListener("load", function (event) {
var saveAjaxRequest = function (urlPath, jsonObj, methodType, evtTarget) {
var url = urlPath;
var request = Components.classes["#mozilla.org/xmlextras/xmlhttprequest;1"].createInstance(Components.interfaces.nsIXMLHttpRequest);
request.onload = function (aEvent) {
window.alert("Response Text: " + aEvent.target.responseText);
saveResponse = aEvent.target.responseText;
//here i am again trying to dispatch the response i got from the server back to the origin, but unable to pass it...
evtTarget.setAttribute("responseObject", saveResponse);
document.documentElement.appendChild(evtTarget);
var evt = document.createEvent("dispatchedRes"); // Error line "Operation is not supported" code: "9"
evt.initEvent("dispatchedResponse", true, false);
evtTarget.dispatchEvent(evt);
};
request.onerror = function (aEvent) {
window.alert("Error Status: " + aEvent.target.status);
};
//window.alert(methodType + " " + url);
request.open(methodType, url, true);
request.send(jsonObj);
};
this.onLoad = function () {
document.addEventListener("saveEvent", function (e) { MyExtension.saveListener(e); }, false, true);
}
var MyExtension =
{
saveListener: function (evt) {
saveAjaxRequest(evt.target.getAttribute("urlPath"), evt.target.getAttribute("jsonObj"), evt.target.getAttribute("methodType"), evt.originalTarget);
}
};
});
Why are you moving your fetchData element into the sidebar document? You should leave it where it is, otherwise your content code won't be able to receive the event. Also, use the content document to create the event. Finally, document.createEvent() parameter for custom events should be "Events". So the code after your //here i am again trying comment should look like:
evtTarget.setAttribute("responseObject", saveResponse);
var evt = evtTarget.ownerDocument.createEvent("Events");
evt.initEvent("dispatchedResponse", true, false);
evtTarget.dispatchEvent(evt);
Please note however that your code as you show it here is a huge security vulnerability - it allows any website to make any HTTP requests and get the result back, so it essentially disables same-origin policy. At the very least you need to check that the website talking to you is allowed to do it (e.g. it belongs to your server). But even then it stays a security risk because server response could be altered (e.g. by an attacker on a public WLAN) or your server could be hacked - and you would be giving an attacker access to sensitive data (for example he could trigger a request to mail.google.com and if the victim happens to be logged in he will be able to read all email data). So please make this less generic, only allow requests to some websites.