I'm beginner to TweetSharp and I'm using the ListTweetsOnHomeTimeline() method of TweetSharp , sometimes this method works fine and sometimes its return null.
Below is my code
IEnumerable<TwitterStatus> homeTweets = service.ListTweetsOnHomeTimeline(new ListTweetsOnHomeTimelineOptions());
if (homeTweets != null)
{
foreach (var item in tweets)
{
Console.WriteLine("{0} says '{1}'", item.User.ScreenName, item.Text);
}
}
Any help will be appreciated.
I had the same problem because I was passing SinceId=0 as option (=null works fine); As I suppose you have modified your actual code before posting, this might be your problem. Or another invalid option that the Twitter API doesn't like.
Here is the piece of code that works for me:
//Persist lastMessageIdProcessed accross calls to prevent
//processing the same messages again and again
long? lastMessageIdProcessed=null;
IEnumerable<TwitterStatus> tweets=service.ListTweetsOnHomeTimeline(new ListTweetsOnHomeTimelineOptions {
SinceId=lastMessageIdProcessed>0?lastMessageIdProcessed:null,
Count=100
});
if(tweets!=null) //Shouldn't happen
{
foreach(TwitterStatus tweet in tweets)
{
lastMessageIdProcessed=tweet.Id;
//Do your stuff here
}
}
I tried passing SinceId = null and it solved me the problem, like so:
IEnumerable<TwitterStatus> _tweets = _twitterService.ListTweetsOnHomeTimeline(new ListTweetsOnHomeTimelineOptions { SinceId = null });
But only for a little while. I noticed that this is recurring, every now and then the request returns null, but if I try later, it works. I'm guessing there is a request limit.
I've found this: https://dev.twitter.com/docs/rate-limiting/1.1
Related
If I pass hard coded values in offerCheck validator it is working fine. But if I get values from api, null values is getting passed in paramets. Form is getting executed before we get the values from service. Please help me to make validate check after getting values from api.
this.newOffer = "aaa";
this.oldOffer = "aaa";
constructor(fb: FormBuilder) {
this.formGroup = fb.group({
'offer': [null, Validators.compose([Validators.required, this.offerCheck(newOfer, oldOffer)])],
})
offerCheck(new, old) {
return (control: FormControl) => {
if (new == old) {
return true;
}
}
}
What you want is probably the AsyncValidatorFn, here's a very simple example of how to create one:
export const OfferCheck: AsyncValidatorFn = (control: AbstractControl): Observable<boolean> => {
if (new == old) {
return Observable.of(this.http.get('/some-endpoint').first().map(res => res.data));
}
};
You don't provide enough information so this is just a guess on how you'd want it to be. But it should point you in the right decision.
An alternative method would be to use setValidators of the control(s) after you've fetched the data:
this.formGroup.get('offer').setValidators([Validators.required, this.offerCheck(newOfer, oldOffer)]);
I hope this helps.
I found another person apparently having this issue but I thought I'd re-ask the question to see if I could make it more explicit.
I'm using the JIRA 6 REST web API and successfully pulling lots of data that matches our web cloud UI.
Now I'd like to see the transitions a given issue has been thru, preferably with info about who performed the transition.
I can see this transition history in our JIRA web UI but I haven't figured out how to access programmatically yet.
There's a promising sounding API:
http://example.com:8080/jira/rest/api/2/issue/{issueIdOrKey}/transitions [GET, POST]
And this is the API the previous asker seemed to have been using. From what I can tell it only returns the valid transitions you can ask for on the issue at a given point in time.
I would like a history of transitions, such as when the issue went to code review, QA, closed, etc.
I have done a expand=changelog but the change log does not correlate with the transitions that I can see.
Any tips would be appreciated. Thanks.
When you use expand=changelog, then all changes that have been done in issue are there. Exactly same info as in All tab in Activity section when viewing in web browser.
When I send:
http://jira.my.server.se/rest/api/2/issue/KEYF-42346?expand=changelog
Under changelogkey I find list of histories. Each historyhas list of items. Those items are changes performed on the certain field, with to and from values.
To find all status changes you need to do something like this:
for history in issue.changelog.histories:
for item in history.items:
if item.field == "status":
print item.toString # new value
print item.fromString # old value
Or use GET /rest/api/3/issue/{issueIdOrKey}/changelog like explained in the "get changelog" docs
You can try using the jql parameter for the REST API call.
So your call for,
JQL = project=XYZ and status was resolved
fields = key
will look like this,
http://example.com/rest/api/2/search?jql=project%3DXYZ%20and%20status%20was%20resolved&fields=key
where key will return only relevant information and not excessive for each issue.
public void changeStatus(IssueRestClient iRestClient,
List<Statuses> JiraStatuses, String key) {
String status = "To Do";
for (Statuses statuses : vOneToJiraStatuses) {
if (1 == statuses.compareTo(status)) {
try {
String _transition = statuses.getTransition();
Issue issue = iRestClient.getIssue(key).get();
Transition transition = getTransition(iRestClient, issue,
_transition);
if (!(isBlankOrNull(transition))) {
if (!(issue.getStatus().getName()
.equalsIgnoreCase(_transition)))
transition(transition, issue, null, iRestClient,
status);
}
} catch (Exception e) {
Constants.ERROR.info(Level.INFO, e);
}
break;
}
}
}
List is a pojo implementation where statuses and transitions defined in xml are injected through setter/constructor.
private void transition(Transition transition, Issue issue,
FieldInput fieldInput, IssueRestClient issueRestClient,
String status) throws Exception {
if (isBlankOrNull(fieldInput)) {
TransitionInput transitionInput = new TransitionInput(
transition.getId());
issueRestClient.transition(issue, transitionInput).claim();
Constants.REPORT.info("Status Updated for : " + issue.getKey());
} else {
TransitionInput transitionInput = new TransitionInput(
transition.getId());
issueRestClient.transition(issue, transitionInput).claim();
Constants.REPORT.info("Status Updated for : " + issue.getKey());
}
}
public Transition getTransition(IssueRestClient issueRestClient,
Issue issue, String _transition) {
Promise<Iterable<Transition>> ptransitions = issueRestClient
.getTransitions(issue);
Iterable<Transition> transitions = ptransitions.claim();
for (Transition transition : transitions) {
if (transition.getName().equalsIgnoreCase(_transition)) {
return transition;
}
}
return null;
}
In Short using Transition API of JIRA we can fetch all the transitions to set statuses
I'm currently trying the Neo4j 2.0.0 M3 and see some strange behaviour. In my unit tests, everything works as expected (using an newImpermanentDatabase) but in the real thing, I do not get results from the graphDatabaseService.findNodesByLabelAndProperty.
Here is the code in question:
ResourceIterator<Node> iterator = graphDB
.findNodesByLabelAndProperty(Labels.User, "EMAIL_ADDRESS", emailAddress)
.iterator();
try {
if (iterator.hasNext()) { // => returns false**
return iterator.next();
}
} finally {
iterator.close();
}
return null;
This returns no results. However, when running the following code, I see my node is there (The MATCH!!!!!!!!! is printed) and I also have an index setup via the schema (although that if I read the API, this seems not necessary but is important for performance):
ResourceIterator<Node> iterator1 = GlobalGraphOperations.at(graphDB).getAllNodesWithLabel(Labels.User).iterator();
while (iterator1.hasNext()) {
Node result = iterator1.next();
UserDao.printoutNode(emailAddress, result);
}
And UserDao.printoutNode
public static void printoutNode(String emailAddress, Node next) {
System.out.print(next);
ResourceIterator<Label> iterator1 = next.getLabels().iterator();
System.out.print("(");
while (iterator1.hasNext()) {
System.out.print(iterator1.next().name());
}
System.out.print("): ");
for(String key : next.getPropertyKeys()) {
System.out.print(key + ": " + next.getProperty(key).toString() + "; ");
if(emailAddress.equals( next.getProperty(key).toString())) {
System.out.print("MATCH!!!!!!!!!");
}
}
System.out.println();
}
I already debugged through the code and what I already found out is that I pass via the InternalAbstractGraphDatabase.map2Nodes to a DelegatingIndexProxy.getDelegate and end up in IndexReader.Empty class which returns the IteratorUtil.EMPTY_ITERATOR thus getting false for iterator.hasNext()
Any idea's what I am doing wrong?
Found it:
I only included neo4j-kernel:2.0.0-M03 in the classpath. The moment I added neo4j-cypher:2.0.0-M03 all was working well.
Hope this answer helps save some time for other users.
#Neo4j: would be nice if an exception would be thrown instead of just returning nothing.
#Ricardo: I wanted to but I was not allowed yet as my reputation wasn't good enough as a new SO user.
i cant get the issue in my code , every thing working proper but issue is that when user click or focus first time on textbox correct img show .. this is incorrect but i cant solved this problem when user typing then after completing wher user correct type then show otherwise not shown . can any one help me regarding this issue . my complete jquery and html or css code are available in this link pls check and solved my issue
my code link
i think error on this function but icant get the issue
$('#step1 #fName').focus(function(){
if($('#step1 #fName').hasClass('error_Aplha')==true)
{
$('#step1 #fntick').removeClass('block');
}
else {
$('#step1 #fntick').addClass('block');
}
}).blur(function(){
if($('#step1 #fName').hasClass('error_Aplha')==true)
{
$('#step1 .fname_error').fadeIn(100).delay(2000).fadeOut(1000);
$('#step1 #fntick').removeClass('block');
}
else {
$('#step1 .fname_error').removeClass('block');
$('#step1 #fntick').addClass('block');
}
});
thanks in advance
Wow, that's a lot of code for a simple task. Change it so the checks are only done in the .keyup() and .blur() events of the INPUT elements.
Not 100% sure what the intended behaviour is, but this will probably get you going:
$(document).ready(function(e) {
var errorAlpha = function() {
var reg = /^([A-Za-z]+)$/;
var check = $(this).val();
if (reg.test(check) == true && check.match(reg) != null) {
// VALID
$(this).removeClass('error_Aplha');
$(this).next('img').addClass('block');
$(this).prevAll('span.tooltip2').stop(true).delay(500).fadeOut(400);
} else {
// INVALID
$(this).addClass('error_Aplha');
$(this).next('img').removeClass('block');
$(this).prevAll('span.tooltip2').fadeIn(500).delay(2000).fadeOut(1000);
}
};
$('#step1 #fName, #step1 #lName').on('keyup blur', errorAlpha);
});
Demo: http://jsfiddle.net/gU3PU/6/
I built an ajax chat in one of my mvc website. everything is working fine. I am using polling. At certain interval i am using $.post to get the messages from the db. But there is a problem. The message retrieved using $.post keeps on repeating. here is my javascript code and controller method.
var t;
function GetMessages() {
var LastMsgRec = $("#hdnLastMsgRec").val();
var RoomId = $("#hdnRoomId").val();
//Get all the messages associated with this roomId
$.post("/Chat/GetMessages", { roomId: RoomId, lastRecMsg: LastMsgRec }, function(Data) {
if (Data.Messages.length != 0) {
$("#messagesCont").append(Data.Messages);
if (Data.newUser.length != 0)
$("#usersUl").append(Data.newUser);
$("#messagesCont").attr({ scrollTop: $("#messagesCont").attr("scrollHeight") - $('#messagesCont').height() });
$("#userListCont").attr({ scrollTop: $("#userListCont").attr("scrollHeight") - $('#userListCont').height() });
}
else {
}
$("#hdnLastMsgRec").val(Data.LastMsgRec);
}, "json");
t = setTimeout("GetMessages()", 3000);
}
and here is my controller method to get the data:
public JsonResult GetMessages(int roomId,DateTime lastRecMsg)
{
StringBuilder messagesSb = new StringBuilder();
StringBuilder newUserSb = new StringBuilder();
List<Message> msgs = (dc.Messages).Where(m => m.RoomID == roomId && m.TimeStamp > lastRecMsg).ToList();
if (msgs.Count == 0)
{
return Json(new { Messages = "", LastMsgRec = System.DateTime.Now.ToString() });
}
foreach (Message item in msgs)
{
messagesSb.Append(string.Format(messageTemplate,item.User.Username,item.Text));
if (item.Text == "Just logged in!")
newUserSb.Append(string.Format(newUserTemplate,item.User.Username));
}
return Json(new {Messages = messagesSb.ToString(),LastMsgRec = System.DateTime.Now.ToString(),newUser = newUserSb.ToString().Length == 0 ?"":newUserSb.ToString()});
}
Everything is working absloutely perfect. But i some messages getting repeated. The first time page loads i am retrieving the data and call GetMessages() function. I am loading the value of field hdnLastMsgRec the first time page loads and after the value for this field are set by the javascript.
I think the message keeps on repeating because of asynchronous calls. I don't know, may be you guys can help me solve this.
or you can suggest better way to implement this.
Kaivalya is correct about the caching, but I'd also suggest that your design could and should be altered just a tad.
I made a very similar app recently, and what I found was that my design was greatly enhanced by letting the controllers work with the fairly standard PRG pattern (post-redirect-get). Why enhanced? well, because POST methods are built to add stuff to an app, GET methods are supposed to be used to get information without side effects. Your polling should be just getting new messages w/o side effects.
So rather than your $.post call expecting data and handling the callback, what I'd recommend is having your controller expose a method for creating new chat messages via POST and then another method that get the last X chat messages, or the messages since a certain timestamp or whatever.
The javascript callback from the post action, then can update some variables (e.g. the last message id, timestamp of the last message, or even the whole URL of the next message based on the info contained in a redirect, whatever).
The $.post would fire only in response to user input (e..g type in a box, hit 'send') Then, you have (separately) a $.get call from jquery that's set up to poll like you said, and all it does is fetch the latest chat messages and it's callback updates the chat UI with them.
I got my answer here: ASP.NET AJAX CHAT
The names below i am referring to are from above link.
i think the actual problem was with the timestamp thing and asynchronous behaviour of $.post. after calling "GetMessages()" method, even if the previous request to retrive chat message was not complete anathor call to same method used to fire due to setting timeout for "GetMessages()" method outside the $.post method. In my question you can see that timeout for "GetMessages()" method is set outside the $.post method. Now i set the timeout for "GetMessages()" method inside the $.post method. so that next call to "GetMessages()" only occur after 3 seconds of completion of current $.post method. I have posted the code below.
var t;
function GetMessages() {
var LastMsgRec = $("#hdnLastMsgRec").val();
var RoomId = $("#hdnRoomId").val();
//Get all the messages associated with this roomId
$.post("/Chat/GetMessages", { roomId: RoomId, lastRecMsg: LastMsgRec }, function(Data) {
if (Data.LastMsgRec.length != 0)
$("#hdnLastMsgRec").val(Data.LastMsgRec);
if (Data.Messages.length != 0) {
$("#messagesCont").append(Data.Messages);
if (Data.newUser.length != 0)
$("#usersUl").append(Data.newUser);
$("#messagesCont").attr({ scrollTop: $("#messagesCont").attr("scrollHeight") - $('#messagesCont').height() });
$("#userListCont").attr({ scrollTop: $("#userListCont").attr("scrollHeight") - $('#userListCont').height() });
}
else {
}
t = setTimeout("GetMessages()", 3000);
}, "json");
}
I addition to that i also changed few things. As suggested by ignatandrei i placed $("#hdnLastMsgRec").val(Data.LastMsgRec); immediately after function(Data) {.
and also
as said by MikeSW i changed the data retrieval process. Previously i was extracting data on the basis of timespan(retrieve all the data associated with
this room id that has greater timespan than last data retrieved message timespan) but now i keep track of the messageid. Now i retrieve only those data that
has message id greater than last retrieved message id.
and guess what no repeataion and perfectly working chat application so far on my intranet.
I still got to see it's performance when deployed on internet.
i think it solved my problem.
i will still test the system and let u guys know if there is any problem.
By default $.post() caches the results
You can either call $.ajaxSetup ({ cache: false}); before JS GetMessages function call to ensure caching is disabled or change the $.post to $.ajax and set cache attribute to false. In the end $.post() is a short cut to this:
$.ajax({
type: 'POST',
url: url,
data: data,
success: success
dataType: dataType
});