I'm not to familiar with the SO user tags, so I hope that this works: #aaron
This is the closest question that I could find that relates to my issue, but it's not exactly the issue. (I tried Google, Bing, and SO's own search.)
https://stackoverflow.com/questions/25014006/nullreferenceexception-with-parseobjects-in-array-of-pointers
My issue: I have a Unity Web-Player game that interfaces with both Facebook and Parse. after resolving many issues in it, I have it to where it will easily connect to Facebook, pull in the user's profile information and picture. It then attempts to connect to parse to log the user into parse to retrieve their game related data (like high scores, currency stats, power ups, etc.) and when it tries to do that, I get a NullReferenceException. The specific contents of the error message is:
"NullReferenceException: Object reference not set to an instance of an object
at GameStateController.ParseFBConnect (System.String userId, System.String accessToken, DateTime tokenExpiration) [0x0001a] in C:...\Assets\Scripts\CSharp\CharacterScripts\GameStateController.cs:1581
at GameStateController.Update () [0x0011f] in C:\Users\Michieal\Desktop\Dragon Rush Game\Assets\Scripts\CSharp\CharacterScripts\GameStateController.cs:382"
The code that generates this error message is:
public void ParseFBConnect(string userId, string accessToken, DateTime tokenExpiration)
{
Task<ParseUser> logInTask = ParseFacebookUtils.LogInAsync (userId, accessToken, tokenExpiration).ContinueWith<ParseUser> (t =>
{
if (t.IsFaulted || t.IsCanceled)
{
if (t.IsCanceled)
Util.LogError ("LoginTask::ParseUser:: Cancelled. >.<");
// The login failed. Check the error to see why.
Util.LogError ("Error Result: " + t.Result.ToString ());
Util.LogError ("Error Result (msg): " + t.Exception.Message);
Util.LogError ("Error Result (inmsg): " + t.Exception.InnerException.Message);
}
if (t.IsCompleted)
{ // No need to link the user to a FB account, as there are no "real" (non fb) accounts yet.
Util.Log ("PFBC::Login result reports successful. You Go Gurl!");
// Login was successful.
user = t.Result; // assign the resultant user to our "user"...
RetryPFBC = false;
return user;
}
return t.Result;
});
if (user.ContainsKey ("NotNew"))
{ // on true, then we don't have to set up the keys...
Util.Log ("User, " + user.Username + ", contains NotNew Key.");
}
else
{
CreateKeys (); // Create Keys will only build MISSING Keys, setting them to the default data specifications.
user.Email = Email;
user.SaveAsync (); // if we have created the keys data, save it out.
}
}
It is being passed the proper (post authenticated) Facebook values (FB.UserId, FB.AccessToken, FB.AccessTokenExpiresAt) in that order. I'm using FB Sdk version 6.0.0 and Parse Unity SDK version 1.2.16.
In the log file, instead of any of the debug.log/Util.log comments, it does the "Null Reference" error (above), followed by "About to parse url: https://api.parse.com/1/classes/_User
Checking if https://api.parse.com/1/classes/_User is a valid domain
Checking request-host: api.parse.com against valid domain: *"
And that is where it just stopped. So, I built a simple retry block in the Update() function to call the ParseFBConnect() function every 10 or so seconds. Which, seems to only fill up my log file with the same error sets. After searching across the internet for help, I tried changing the FB.AccessTokenExpiresAt to DateTime.UtcNow.AddDays(1) as others have said that this works for them. I cannot seem to get either to work for me. When I check the Dashboard in Parse to see if it shows any updates or activity, it doesn't, and hasn't for a few days now. The Script Execution Order is as follows:
Parse.ParseInitialzeBehaviour -- -2875 (very first thing)
Facebook loaders (FB, Editor, Canvas, etc) -- -1000 to -900
GameStateController -- -875
...
So, I know that the Parse.ParseInitializeBehaviour is being loaded first (another result of searching), and I have tracked the NullReference down to the Parse.Unity.dll by changing where the login method is stored; The GSC is on the player (the Player starts in the splash screen and remains throughout the entire game). I have also tried placing the Parse.ParseInitializeBehaviour on the Player gameobject and on an empty gameobject (with a simple dontdestroy(gameObject) script on that). And, I have my Application ID and my DotNet Key correctly filled in on the object.
When I first set up parse, and on the current production version of the game, it can successfully create a user account based off of the code snippet above. Now, it just breaks at the trying to parse the url...
So, My Question is: What am I doing wrong? Does anyone else have this issue? and does anyone have any ideas/suggestions/etc., on what to do to fix this? I really just want this to work, and to log the user in, so that I can grab their data and go on to breaking other things in my game :D
All help is appreciated!! and I thank you for taking the time to read this.
The Answer to this question is as follows:
backend as a service - Bing
Ditch parse because it doesn't work well with Unity3d, the support (obviously, judging by the sheer number answers to this question and other questions from people that need help getting it to work) is extremely lacking, and most, if not all, of the examples to show how to use it are broken / missing parts / etc. I see this as a failure on the part of the creators. I also see it as False Advertising. So, to answer this question - PARSE is a waste of time, cut to the chase and grab something that does work, has real, WORKING examples, and that is maintained by someone that knows HOW TO PROGRAM in the UNITY3d environment.
A great example of this would be the Photon Networking service, App42 by Shephertz.com, Azure by Microsoft, etc. With the overwhelming number of answers to this, if you exclude PARSE, This should have been a no-brainer. I've included a Bing Search link, you can also do a quick search for Gaming Backends (you'll find blogs and reviews.)
I suggest strongly, that you read the reviews on these services, read the questions (and make note of whether they have been answered, or, in the case of Parse, if they simply closed the forum rather than answering their customers)... And, just bounce around through the examples that they give for using their products. If they show how it works, and expected results (like the MSDN does) you'll have a lot better and a lot easier time getting it work.
FYI - My game now has all of the back end integrations, saves/creates/gets users & their data, has a store, and is moving right along, since I dropped PARSE.
To make things correct, I WAS using Parse 1.2.16 for unity, and the Facebook for Unity SDK 6.0.0... I tried Parse 1.2.14, with the same results, and I tried both Unity 4.5.2 and 4.5.3. My opinion of Parse is based off of their documentation, these 2 API versions, and the very long days that I pulled trying to get it to work. I then added in the fact that NO ONE here answered this question AT ALL (Sadly, Stack Over flow is Facebook's preferred Help/Support forum. They even say in their blogs, help documentation, etc., that if you have an issue - post your question on Stack Overflow.com with relevant tags. Which, I did.)
Oh, and the final star rating of Parse (to clarify it) is "-2 out of 5" -- That's a NEGATIVE 2 stars... out of 5. as in, run away from it... far, far away. Just to clarify.
Related
Hello everybody,
around two or three month ago I started to learn Dynamo for Revit... finally :)
After learning and testing a lot, I got a few own scripts working. Then I learned Python, because I couldn't create the next script only with Dynamo-Nodes.
Then I thought "Let's see how difficult it is to get something done as a PlugIn".
I watched some Videos and read a lot of stuff.
Finally I got the Revit-AddIn-Wizard installed and made my first small Test-PlugIn.
Great...
Now I have a few problems which I do not understand... so I thought I will try my luck here... because I got so much information and help, reading through this site.
My goal was/is the following: (I tell you what I have now)
A form with a few buttons, comboboxes and a DataGridView.
I can load an Excelfile, click on "Show" to show it in the DataGridView.
The header of each row will be automatically put into 3 comboboxes.
In the first combobox you select the first search-parameter, in the second you CAN select another search-parameter and in the third combobox you select the parameter you want to set.
I have a checkbox to switch from type- to instance-parameter for the search- and the set-operation.
There is also a button which shows another small form with a list of categories (I won't search for ALL, only nearly all modelcategories).
PlugIn
I took me a lot of "watching Videos, reading through the internet, testing, testing and testing".
Thanks to this site here and a few others... I managed to get this whole PlugIn nearly 100% working.
But now I have a few strange issues and I have absolutely no clue on how to fix them or if it is possible. And I really hope that someone can help me.
First... I just tell you my problems and perhaps someone can say "this really IS an issue!" or that it is possible to get it done. Then I would post some code.
So... what do I do?!
1. I have a FilteredElementCollector which filters ALL elements.
2. Depending on my "Type/Instance-Checkboxes" I do .WhereElementIsElementType OR .WhereElementIsNotElementType.
3. Then it passes a MultiCategoryFilter to get the big list down to only the modelcategories.
4. Next, the collection passes one of ten different "methods" depending on all settings. There I filter this collection depending on the searchlists-comboboxes. When the combobox says "Familie" or "Typ" then it filters for ".BuiltInParameter.SymbolFamilyName" or ".Name" otherwise it just uses ".LookupParameter".
After that I have a collection with only the elements of selected categories which contains the values from the Excellist.
5. Depending on what my search- and set-settings are (e.g. search for type and set instance) I have to get the instances from the collected types or the other way around.
6. Then I pass it down to another method where I finally set the parameter.
So... Excelheader goes into comboboxes, depending on what you select in there it creates lists with the values of the selected rows.
I hope you all understand.
Now... where are my problems?
When I search for type-familynames or instance-parameter and set a typeparameter it works for ALL categories without any error.
1. When I try to set an instanceparameter (doesn't matter what my search-setting are) it works for all "normal" families but not for the systemfamilies (e.g. walls, floors, pipes etc.). No error, just nothing happens WHY? It seems that I cannot set an instance-parameter for system-families.
2. Roofs, Stairs, CurtainPanels and GenericModel make problems when I search for a typeparameter Error is something like "The object reference was not set to an object instance". Only with these 4 categories and it doesn't matter what I want to set... but when I search for family-/typeNAME or Instance-Parameter, then I can set type or instance and it works (except instance for sysfam).
3. When I try to search AND set an instance-parameter it works for ALL categories EXCEPT if one wall does not contain a search value... it really is enough that ONE wall does not have a search-param-value that everything will be cancelled.
I have a few other small problems... but I hope someone can help me with these problems... I would be extremely thankfull
greetings and have a nice day or night :)
Philipp
Tl; dr.
The three problems you describe sound like your own. I have no heard anybody else runAsk three separate questions and provide three separate minimal code snippets describing how they arise,. into those. I suggest that you create three separate independent minimal reproducible cases to demonstrate all three issues. Chances are, when you simplify and minimalise your code, the problem will go away. If it does not, it might just possibly be in a small and manageable enough state for other people to help you take a look at it. Given the long-winded description above, nobody in the world can help you.
Thank you for your answer Jeremy,
as I said, as a first start it is ok for me if you don't say "With theses categories, there are indeed some issues!"
I think I've managed to create 3 small examples of my problems.
For each problem I made a zip-file containing the complete visual-studio folder, a small exampleproject and a readme.txt with (I hope) enough information to understand everything in detail.
Problem1
Problem3
You only need to compile them or copy the .addin and .ddl files into the Revit AddIn folder. Then you get the new ribbons.
Short problem summary = I get problems when searching for parametervalues and setting values to another parameter.
Edit: I just solved the 2. problem when searching for familynames and setting system-families-parameter.
I used:
ElementClassFilter ecf = new ElementClassFilter(typeof(FamilyInstance));
FilteredElementColletor colle2 = new FilteredElementCollector(doc);
colle2.WherePasses(ecf);
I simply deleted the ClassFilter and do it now like in the other cases where I need instances.
FilteredElementCollector colle2 = new FilteredElementCollector(doc);
colle2.WhereElementIsNotElementType();
The 1. and 3. problem still exist :/
I would be thankful for any help someone can provide :)
EDIT FOR FUTURE VIEWERS - Fixed by changing character set to CP1252 in
php.ini
So recently I took on the task of redoing an old website we created a number of years ago, updating it to be faster, more efficient and, most importantly, not on the WordPress back end.
We are almost done, but I have run into a snag. The old database was done in the CP1252 encoding format and when updating the code, we have converted to the UTF-8 standard. This has naturally caused a number of database entries to be formatted improperly and, with 42,000+ entries in one table alone, it's not super easy to re-enter all the data.
I worked with a developer to create a simple PHP script that loads if an entry's 'id' is below a certain number to convert the old data to UTF-8 upon display.
Here's an example as it pulls an obituary:
function convert_charset($input){
return iconv('CP1252', 'UTF-8', $input);
}
…
if ($row["id"] > "42362") {
return $row["obituary"];
}
else {
return stripslashes(convert_charset($row["obituary"]));
}
This works perfectly. But now I have to convert the mobile site (of course the project lead doesn't want to do a responsive site. OF COURSE HE DOESN'T THAT WOULD MAKE TOO MUCH SENSE) and it's written in ASP.NET, which I have no experience working with, and don't know where to even start.
It is pulling the information as such:
HTML += "<a href='http://twitter.com/share?text=Obituary for " + firstName + "'>";
Can I just get it to load the PHP queries in the header and copy how I have been doing it in PHP into ASP.NET? Being that the information is now separated, is there a way I can convert after a certain point if I can't?
there are a lot of websites where you can get a list of all followers from an Instagram profile. For example the profile of Jennifer Lopez. If I click on followers and scroll the hole list down, I only see round about 1000 users. Is there any way to get a list of all followers, or something in the range between 10 thousand and 100 thousand users? How do the others do it?
Here are a few pages where it seems to work:
crowdbabble
Instagram Scraper
magimetrics
I would be very grateful if you could help me!
I believe most of the pages you are seeing is using the Instagram API (or the method described below). However, that is a bit hard to get access to without an application that they are happy with. As far as I have understood it, you will have to make the application before you know if you will have access, which is a bit stupid. I guess they are trying to stop new users from using it while they keep letting the people already using it keep using it.
The documentation for their API seems to be missing a lot of what was available earlier, and right now there is no endpoint to get followers(that might be something temporarily wrong with the documentation page: https://www.instagram.com/developer/endpoints/).
You could get the followers the same way the Instagram webpage is doing it. However, it seems only to work if you request up to around 5000-6000 followers at a time, and you might get rate limited.
They are making a GET request to: https://www.instagram.com/graphql/query/ with the query parameters query_hash and variables.
The query_hash I guess is a hash of the variables. However, I might be wrong since it will keep working even tho you change the variables. The same hash might not work forever, so its possible you would have to get the same way the Instagram page is doing it. You will get that even tho you are not logged in, so I would not think it would be very hard.
The variables parameter is an URL encoded JSON object containing your search variables.
The JSON should look like this:
{
"id":"305701719",
"first":20
}
The id is the user's id. The first is the number of followers you want.
The URL would look like this when you encode it. https://www.instagram.com/graphql/query/?query_hash=bfe6fc64e0775b47b311fc0398df88a9&variables=%7B%22id%22%3A%22305701719%22%2C%22first%22%3A20%7D
This will return a json object like this:
"data": {
"user": {
"edge_followed_by": {
"count": 73785285,
"page_info": {
"has_next_page": true,
"end_cursor": "AQDJzGlG3jGfM6KGYF7oOhlMqDm9_-db8DW_8gKYTeKO5eIca7cRqL1ODK1SsMA33BYBbAZz3BdC3ImMT79a1YytB1j9z7f-ZaTIkQKEoBGepA"
},
"edges": [
{
"node": {}
}
]
}
}
}
The edges array will contain a list of node elements containg user info about people that are following the person you where searching for.
To get the next x number of followers, you would have to change the json used in the variables query to something like this:
{
"id":"305701719",
"first":10,
"after":"AQDJzGlG3jGfM6KGYF7oOhlMqDm9_-db8DW_8gKYTeKO5eIca7cRqL1ODK1SsMA33BYBbAZz3BdC3ImMT79a1YytB1j9z7f-ZaTIkQKEoBGepA"
}
after would be what you received as an end_cursor in the previous request.
and your new URL would look like this: https://www.instagram.com/graphql/query/?query_hash=bfe6fc64e0775b47b311fc0398df88a9&variables=%7B%22id%22%3A%22305701719%22%2C%22first%22%3A10%2C%22after%22%3A%22AQDJzGlG3jGfM6KGYF7oOhlMqDm9_-db8DW_8gKYTeKO5eIca7cRqL1ODK1SsMA33BYBbAZz3BdC3ImMT79a1YytB1j9z7f-ZaTIkQKEoBGepA%22%7D
This way you can keep looping until has_next_page is false in the response.
EDIT 23/08/2018
Instagram seems to have blocked any scrolling/query hash request to get followers list/likers list on a post, at least on desktop, even for your own account.
https://developers.facebook.com/blog/post/2018/01/30/instagram-graph-api-updates/
It should be although still possible from a phone, maybe following a Selenium-like for mobile, using Appmium : http://appium.io/
Maybe some reverse app engineering may also be the key, if any idea from that side :
https://www.blackhatworld.com/seo/journey-instagram-app-reverse-engineer.971468/
EDIT 25/08/2018
It seems to be back... if any information about it ?
I have a question I am stumped on.
Okay, this is for a game of mine in Unity3D.
To make this make sense in terms of what people normally play.
Let's say the player has 500 Gold in their account (saved on database).
And the player earns 243 gold by doing some kind of task, how could the game
(Unity3D) tell the PHP file they earned specifically 243 Gold?
Because here's where the issue lies,
In Unity3D there's a class called WWW.
It allows you to send some sort of string to a PHP file.
int currentGold;
string goldToSend = currentGold.ToString(); // Only using that for example.
WWWForm form = new WWWForm();
form.AddField("NameOfPostRequestInPHPFile",goldToSend);
WWW www = new WWW("website.com/PHPFile.php", form);
Now as you can see, I am in a pretty big dilemma, being you can't trust the client with anything, how would one actually send a random gold amount from the client side to the PHP to then put into a database.
The issue I am facing is, how can one really make a PHP understand what's going on in the game without the client actually telling it a thing, and being you can't trust the client, how can the client actually tell the PHP to load, use this data and then put it into the database.
I thought about using hashes an stuff, but then that still brings up the problem client side.
Lets say
if(sentGold == 243){
string hash = hash01;
// Change it to hash1000 (to get 1000 gold).
}
if(sentGold == 1000){
string hash = hash1000;
}
As you can see, using if statements clearly wouldn't work either, because then the hashes could just be changed locally to fit their devious attempts. Plus it looks like garbage to had 20K if statements.
I know it's impossible to entirely stop hacking. But at the same time, if I do something i want to do it right, not half-a**ed if you get what I mean?
If you've made it to this point reading my help message.
I really appreciate the time you've put into reading it,
it means a lot to me.
Now, if there's some other technology or hints you might know that could help me with this, or heck even a tutorial on it (i've been looking for days), but I'm still deadlocked because nobody is addressing the fact that yeah they might use secret keys and so forth, but they are failing to address that the string they send can be easily tampered with. All they gotta do is change for 243 to 9999999999 and then they are rich.
You can't trust the client? Correct.
But...You are the captain of this ship. So your server need to be smart enough to detect the cheating.If a certain task in game gives 200 gold, you can send the reference of that task along with the value (200,"SomeTask"). Now if client tries to send (10000,"SomeTask"), server would consider it cheating. You might say that client can earn variable gold based on how good they perform the task, in that case you can have a max-limit value for every task and check before adding the gold to database.
And never send total gold from client to be saved in database. Client should only be able to send newly earned gold and will gets back total value.
For Example:
Database: 2000 gold -> Game: 2000 gold
Game: POST (130,"pickupjewel");
Databse: if (130 <= MaxValue("pickupjewel")) [TRUE] -> SUCCESS
Database: 2130 gold -> Game: 2130 gold
Game: POST (999999,"pickupjewel");
Databse: if (999999<= MaxValue("pickupjewel")) [FALSE] -> FAILURE
Database: 2130 gold -> Game: 2130 gold
I hope this helps. Let me know if you have any specific issue.
Revised question with added detail...
I'm trying to use AxShockwaveFlash to play a youtube video and start it at a specific location. This is within a C# winforms app. I have the basics. I can successfully start and stop the video. I cannot, however, figure out how to set the position and start at a specific time within the video. What property or method needs to be called to do this?
Here's what I have so far:
AxShockwaveFlashObjects.AxShockwaveFlash mFlashPlayer;
...
mFlashPlayer.Movie = #"http://www.youtube.com/v/9O9HfafzBPE?version=3&hl=ru_RU";
mFlashPlayer.Play();
I've tried setting various properties and calling various methods, but I'm just guessing. For example, I tried calling
mFlashPlayer.GotoFrame(200);
and it did nothing. Seems so simple, I'm starting to wonder if I'm encountering a bug. ?
I also tried using the standard form when using a web browser, which is to encode it directly in the url. For example, the following did not work either:
mFlashPlayer.Movie = #"http ...blah... #t=77s";
mFlashPlayer.Play();
Thanks in advance for any suggestions.
ANSWER
Apparently, I'm not authorized to post an answer, so I'm editing the question and adding it here...
Got it! The magic trick is to set the 'start' parameter in the url that you provide to the Movie property or the LoadMovie() method.
Embedded AS3 player:
http://www.youtube.com/v/VIDEO_ID?version=3&start=NUMBER_SECONDS
Chromeless AS3 player:
http://www.youtube.com/apiplayer?video_id=VIDEO_ID&version=3&start=NUMBER_SECONDS
Replace VIDEO_ID and NUMBER_SECONDS with the desired values.
Example:
mFlashPlayer.Movie = #"http://www.youtube.com/v/1ZKz2KW87Y4?version=3&start=100";
I found the required info here:
https://developers.google.com/youtube/player_parameters
That was one of the more frustrating hunts for info that I've been on in a while. Hope this post saves other folks the headaches.