Hi I am trying this Flickr API, where I want to display title + image, for the first 3. But it's not working.
http://jsfiddle.net/28hEb/6/
var tag = "mount";
$.getJSON("http://api.flickr.com/services/feeds/photos_public.gne?tags=" + tag + "&tagmode=all& format=json&jsoncallback=?", function (data) {
$.each(data.items, function (index, item) {
$("<div>").html(item.title).appendTo("#content");
$("<img/>").attr("src", item.media.m).appendTo("#content");
if (index == 3) {
return false;
}
});
});
You have a syntax error:
$.getJSON("http://api.flickr.com/services/feeds/photos_public.gne?jsoncallback=?", {
tags: "mount",
tagmode: "any",
format: "json",
}, function (data) {
var $content = $('#content');
$.each(data.items, function (i, item) {
$("<div>").html(item.title.m).appendTo($content);
$("<img/>").attr("src", item.media.m).appendTo($content);
if (i == 3) {
return false;
}
});
});
Check this fiddle
The } should end before the callback. Hence the issue. Your browser's console should give you a hint of what the error is.
Related
I have wriiten a code to display relevant serch results using select2 and ajax.The results are showing in console properly but not displayed in result table of select2.It just states no reults found...Below is my code:
<script type="text/javascript">
$(".showname").select2({
ajax: {
url:"http://hub.w.net/datatables/brand_processing",
//dataType: "json",
//delay: 250,
type:'POST',
data: function (params) {
return {
search_name: params.term // search term
//console.log(params:params);
};
},
processResults: function (data) {
// parse the results into the format expected by Select2.
// since we are using custom formatting functions we do not need to
// alter the remote JSON data
console.log(data.data);
return {
data:{text:data.data,id:data.id}
};
},
cache: true
},
minimumInputLength: 1
});
</script>
Any suggestions?
try this for select2 latest version
processResults: function (data, params) {
var results = [];
if (data != null && data.length > 0) {
$.each(data, function (index, item) {
results.push({
id: item.id,
text: item.text
});
});
}
return {
results: results
};
};
for select2 3.5.2 version:
results: function (data, page) { // parse the results into the format expected by Select2.
var results = [];
if (data != null && data.length > 0) {
$.each(data, function (index, item) {
results.push({
id: item.id,
text: item.text
});
});
}
return {
results: results
};
},
cache: true
}
try this on processResults function
return {
text:data.data,
id:data.id
};
This function works fine as long im on the same page where the search div imagesearch is.
If im on another site on the website, ill get the error
Cannot read property 'length' of undefined.
The console point put row 27, that's where the if statement start if(q.length..
Cant really find out whats the problem. Any ideas ?
function reloadSearch() {
if (!isLoading) {
var q = $('#imagesearch').val();
if (q.length >= 2) {
isLoading = true;
$.ajax({
type: 'GET',
url: 'core/flickr.php',
data: 'search=' + q,
dataType: 'html',
beforeSend: function () {
$('#imageresult').html(
'<img src="img/loading45.gif" alt="loading..." />');
if (!q[0]) {
$('#imageresult').html(
'');
return false;
}
},
success: function (response) {
$('#imageresult').html(
response);
}
});
// enforce the delay
setTimeout(function () {
isLoading = false;
if (isDirty) {
isDirty = false;
reloadSearch();
}
}, delay);
}
}
};
var delay = 1000;
var isLoading = false;
var isDirty = false;
$(document).ready(function () {
reloadSearch();
$('#imagesearch').keyup(function () {
isDirty = true;
reloadSearch();
});
});
change:
if (q.length >= 2) {
to
if (q !== undefined && q.length >= 2) {
this will stop the can't read value from undefined...If you code in .Net this is similar to the null reference exception.
I have 2 lists in my application and the user is supposed to drag and drop items from one list to another.
When the user drops an element from one of the lists to the other list a request has to be made to the server side code to update a field in the database (SelectedForDiscussion).
This is the code in my controller:
$scope.$watch("questionsDiscuss", function (value) {
var question = $.Enumerable.From($scope.questionsDiscuss).Where(function (item) { return !item.SelectedForDiscussion }).FirstOrDefault()
if (question != undefined) {
questionSelectionService.UpdateQuestionSelectionStatus(question.Id, true)
.then(function (output) {
var question = $.Enumerable.From($scope.questionsDiscuss)
.Where(function (item) { return item.Id == output.data.questionId })
.FirstOrDefault();
var index = $.Enumerable.From($scope.questionsDiscuss).IndexOf(question);
if (question != undefined)
if (output.data.result != "success") {
$scope.questionsDiscuss.splice(index, 1);
$scope.questionsReceived.splice(0, 0, question);
}
else {
question.SelectedForDiscussion = true;
$scope.questionsDiscuss[index] = question;
}
});
}
else {
var question = $.Enumerable.From($scope.questionsReceived).Where(function (item) { return item.SelectedForDiscussion }).FirstOrDefault();
if (question != undefined) {
questionSelectionService.UpdateQuestionSelectionStatus(question.Id, false)
.then(function (output) {
var question = $.Enumerable.From($scope.questionsReceived)
.Where(function (item) { return item.Id == output.data.questionId })
.FirstOrDefault();
var index = $.Enumerable.From($scope.questionsReceived).IndexOf(question);
if (question != undefined)
if (output.data.result != "success") {
$scope.questionsReceived.splice(index, 1);
$scope.questionsDiscuss.splice(0, 0, question);
}
else {
question.SelectedForDiscussion = false;
$scope.questionsReceived[index] = question;
}
});
}
}
}, true);
I have 4 javascript breakpoint placed at the following lines within Firebug:
2 of them at the following lines:
if (question != undefined) {
One at:
var question = $.Enumerable.From($scope.questionsDiscuss)
.Where(function (item) {
return item.Id == output.data.questionId
})
.FirstOrDefault();
And the other at:
var question = $.Enumerable.From($scope.questionsReceived)
.Where(function (item) {
return item.Id == output.data.questionId
})
.FirstOrDefault();
The following happens:
The breakpoints at:
if (question != undefined) {
are always reached.
The breakpoint at
var question = $.Enumerable.From($scope.questionsDiscuss)
.Where(function (item) {
return item.Id == output.data.questionId
})
.FirstOrDefault();
is also reached.
The other is never reached.
Both responses are OK(response code 200).
Everything should work perfectly but the then clause in the second promise is never reached.
Can anyone tell me what I am doing wrong?
The serverside appplication is an ASP.NET MVC application written in C#.
Edit 1:
I figured out why this was happening and I have a work around for it. I am stil interested in an actual solution.
The problem is angularjs throws an error then swallows it when calling $http for the second time. The error is:
digest alredy in progress
I think this is because in my directive I have this code:
dndfunc = function (scope, element, attrs) {
// contains the args for this component
var args = attrs.dndBetweenList.split(',');
// contains the args for the target
var targetArgs = $('#' + args[1]).attr('dnd-between-list').split(',');
// variables used for dnd
var toUpdate;
var target;
var startIndex = -1;
// watch the model, so we always know what element
// is at a specific position
scope.$watch(args[0], function (value) {
toUpdate = value;
}, true);
// also watch for changes in the target list
scope.$watch(targetArgs[0], function (value) {
target = value;
}, true);
// use jquery to make the element sortable (dnd). This is called
// when the element is rendered
$(element[0]).sortable({
items: 'div',
start: function (event, ui) {
// on start we define where the item is dragged from
startIndex = ($(ui.item).index());
},
stop: function (event, ui) {
var newParent = ui.item[0].parentNode.id;
// on stop we determine the new index of the
// item and store it there
var newIndex = ($(ui.item).index());
var toMove = toUpdate[startIndex];
// we need to remove him from the configured model
toUpdate.splice(startIndex, 1);
if (newParent == args[1]) {
// and add it to the linked list
target.splice(newIndex, 0, toMove);
} else {
toUpdate.splice(newIndex, 0, toMove);
}
// we move items in the array, if we want
// to trigger an update in angular use $apply()
// since we're outside angulars lifecycle
scope.$apply(targetArgs[0]);
scope.$apply(args[0]);
},
connectWith: '#' + args[1]
})
}
And there are 2 calls to apply at the end which trigger a new digest cycle I think.
Anyway I fixed it by adding this call before the calls to apply:
if (scope.updateLists != undefined)
scope.updateLists();
And moved all the code from the watch into the updateLists function.
Also because people have mentioned the service as having something to do with it I am pasting the relevant code within it:
GetQuestionsReceived: function (eid, criteria, page, rows) {
var promise = this.GetQuestionsReceivedInternal(eid,criteria, page, rows).then(function (response) {
// The return value gets picked up by the then in the controller.
return response;
});
// Return the promise to the controller
return promise;
},
GetQuestionsReceivedInternal: function (eid, criteria, page, rows) {
return $http({ method: 'GET',
url: '../QuestionManagement/GetQuestions?eventId='+eid+'&page=1&rows=5&'+serialize(criteria)
}).
success(function (data, status, headers, config) {
// this callback will be called asynchronously
// when the response is available
results = data;
}).
error(function (data, status, headers, config) {
// called asynchronously if an error occurs
// or server returns response with an error status.
if (window.console && console.log) {
console.log("Could not obtain questions received. Error:" + data + "Status:" + status + "Headers:" + headers + "Config:" + config);
}
});
},
GetQuestionsDiscuss: function (eid,criteria, page, rows) {
var promise = this.GetQuestionsDiscussInternal(eid,criteria, page, rows).then(function (response) {
// The return value gets picked up by the then in the controller.
return response;
});
// Return the promise to the controller
return promise;
},
GetQuestionsDiscussInternal: function (eid,criteria, page, rows) {
return $http({ method: 'GET',
url: '../QuestionManagement/GetQuestions?eventId=' + eid + '&page=1&rows=5&' + serialize(criteria)
}).
success(function (data, status, headers, config) {
// this callback will be called asynchronously
// when the response is available
response = data;
}).
error(function (data, status, headers, config) {
// called asynchronously if an error occurs
// or server returns response with an error status.
if (window.console && console.log) {
console.log("Could not obtain questions received. Error:" + data + "Status:" + status + "Headers:" + headers + "Config:" + config);
}
});
},
You have two very similar blocks of code, which could be generalized and placed in a function wrapper, leaving behind a very simple calling function.
If you can get everything into that form, then I think you will find it easier to debug.
Here is an attempt to do so :
function updateSelectionStatus(qA, qB, bool) {
var en = $.Enumerable.From(qA);
var question = en.Where(function (item) {
return bool ? !item.SelectedForDiscussion : item.SelectedForDiscussion;
}).FirstOrDefault();
if(question) {
questionSelectionService.UpdateQuestionSelectionStatus(question.Id, bool).then(function (output) {
if (output.data.result == "success") {
question.SelectedForDiscussion = bool;
}
else {
qA.splice(en.IndexOf(question), 1);
qB.unshift(question);
}
});
}
return question;
}
$scope.$watch("questionsDiscuss", function (value) {
if (!updateSelectionStatus($scope.questionsDiscuss, $scope.questionsReceived, true) {
updateSelectionStatus($scope.questionsReceived, $scope.questionsDiscuss, false);
}
}, true);
I may have made some false assumptions and simplified too much (eg. purging the inner $.Enumerable.From, which appears to reselect the same question as the outer), so you may well need to rework my code.
I'm advocating a principle here, rather than offering a solution.
I have a strange problem with the fetch of a backbone collection I am working with. In one particular instance of my code I perform a fetch (exactly how I do it in other areas of the code which all work fine), the fetch never seems to make it to the server and the developer tools shows the request as red with the word (canceled) in the status/text field.
I've walked this through into the backbone sync method and I see the $.ajax being built and everything looks fine. Has anyone run into this problem?
here is my code if it helps, this is a function that calls two .ashx services to first check for a file's existence then to open it. The part that isn't working for me is the "me.collection.fetch().
openDocument: function () {
var me = this,
fileId = me.model.get('id'),
userId = Dashboard.Data.Models.UserModel.get("UserInfo").User_ID,
fileRequest = '/genericHandlers/DownloadFile.ashx?id=' + fileId + '&userId=' + userId,
fileCheck = '/genericHandlers/CheckFileExistance.ashx?id=' + fileId + '&userId=' + userId;
//hide tooltip
me.hideButtonTooltips();
// Check for file existance
$.ajax({
url: fileCheck
})
.done(function (data) {
if (data && data === "true") {
document.location.href = fileRequest;
me.collection.fetch();
} else if (!!data && data === "false") {
"This file is no longer available.".notify('error');
}
})
.fail(function (data) {
"Something went wrong during the File Existance check".notify('error');
"Something went wrong during the File Existance check".log(userId, 'error', 'Docs');
});
},
my collection:
// docsCollection.js - The collection of ALL the documents available to a given user
// Document Collection
Dashboard.Collections.DocsCollection = Backbone.Collection.extend({
model: Dashboard.Models.DocumentUploadModel,
url: function () {
return 'apps/docs/Docs/' + this.userId;
},
initialize: function (options) {
this.userId = options.userId;
this.deferredFetch = this.fetch();
},
comparator: function (model) {
return -(new Date(model.get('expirationDate')));
},
getDaysSinceViewedDocuments: function () {
return this.filter(function (model) {
return model.get('daysSinceViewed') !== null;
});
},
getNewDocuments: function () {
return this.filter(function (model) {
return model.get('isNew');
});
},
getExpiredDocuments: function () {
return this.filter(function (model) {
return model.get('isExpired');
});
}
});
and my model:
Dashboard.Models.DocumentUploadModel = Backbone.Model.extend({
defaults: {
fileArray: [],
name: '',
description: '',
accesses: [],
tags: [],
expirationDate: ''
},
initialize: function () {
this.set({
userId: Dashboard.Data.Models.UserModel.get("UserInfo").User_ID,
expirationDate: (this.isNew()) ? buildExpirationDate() : this.get('expirationDate')
}, { silent: true });
function buildExpirationDate() {
var date = new Date((new Date()).getTime() + 24 * 60 * 60 * 1000 * 7),
dateString = "{0}/{1}/{2}".format(date.getMonth() + 1, date.getDate(), date.getFullYear());
return dateString;
}
},
firstFile: function () {
return this.get('fileArray')[0];
},
validate: function (attributes) {
var errors = [];
if (attributes.name === '' || attributes.name.length === 0)
errors.push({
input: 'input.txtName',
message: "You must enter a name."
});
if (attributes.description === '' || attributes.description.length === 0)
errors.push({
input: 'textarea.taDescription',
message: "You must enter a description."
});
if (errors.length > 0)
return errors;
return;
},
sync: function (method, model, options) {
var formData = new FormData(),
files = model.get("fileArray"),
$progress = $('progress'),
success = options.success,
error = options.error;
// Nothing other than create or update right now
if (method !== "create" && method !== "update")
return;
// Build formData object
formData.append("name", model.get("name"));
formData.append("description", model.get("description"));
formData.append("accesses", model.get("accesses"));
formData.append("tags", model.get("tags"));
formData.append("expirationDate", model.get("expirationDate"));
formData.append("userId", model.get("userId"));
formData.append("isNew", model.isNew());
// if not new then capture id
if (!model.isNew())
formData.append('id', model.id);
for (var i = 0; i < files.length; i++) {
formData.append('file', files[i]);
}
xhr = new XMLHttpRequest();
xhr.open('POST', '/genericHandlers/UploadDocsFile.ashx');
xhr.onload = function () {
if (xhr.status === 200) {
if (success)
success();
} else {
if (error)
error();
}
}
if ($progress.length > 0) {
xhr.upload.onprogress = function (evt) {
var complete;
if (evt.lengthComputable) {
// Do the division but if you cant put 0
complete = (evt.loaded / evt.total * 100 | 0);
$progress[0].value = $progress[0].innerHTML = complete;
}
}
}
xhr.send(formData);
},
upload: function (changedAttrs, options) {
this.save("create", changedAttrs, options);
}
});
You're assigning a value to document.location.href before you try to fetch your collection:
document.location.href = fileRequest;
me.collection.fetch();
Changing document.location.href will change the whole page and in the process, any currently running JavaScript will get shutdown so I wouldn't expect your me.collection.fetch() to ever get executed.
I have the following js code:
function getSelectedPlace(form) {
var places = 1
$(form).find(":input").each(function () {
if ($(this).attr("name") === "Signed_Order_B64") {
$.ajax({
type: 'POST',
url: '/MyController/MyAction',
data: "id=" + places,
success: function (response) {
if (response.Result) {
ret = response.Message;
result = true;
$("input[type=hidden][name=email]").val(response.Email);
$("input[type=hidden][name=appendix]").val(response.Appendix);
} else {
// show fancybox
result = false;
}
},
error: function () {
result = false;
},
async: false
});
$(this).val(ret);
}
});
if (!result) {
$(submitButton).attr("value", btnText);
setStateFotBuyButton(false);
}
return result;
}
I have if statement in success block. I want show partial view in the fancybox in else block. How can I do this? Thanks
Not totally sure what you mean with "partial view" but you could do
} else {
$.fancybox(response,{
// fancybox options here
}); // fancybox
}
You could use the content switch which allows you to set the content of the fancybox to any html:
$.fancybox({
content: response
});