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  • Permission denied for folder creation using background_fu

    - by Anubhaw
    Hi All, I am calling a controller method to convert a video file. This process is called using background_fu job. When the function tries to create a new folder in rails root it gives error i.e. Permission denied. The function performs well if not called in background job process. Can any one point out what can be the trouble. Thanks in advance, Anubhaw

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  • How facebook extracts the right thumbnail of a link?

    - by David
    Hi, I'm wondering how facebook extracts the right picture of the article from a link? they ignore any icons, ads images, or other not related images, & they gives you the right image? What technique/method they use? because i've tried to extract all images using a php regex but how to find the right one? Thanks

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  • # character seems to cause problems with a get Request

    - by Ankur
    I have a queryString that I pass to a servlet's doGet() method that looks like this: count=9&preId0=-99&objId0=-99&preId1=-99&objId1=-99&preId2=69&objId2=16#!78&preId3=-99&objId3=-99&preId4=-99&objId4=-99&preId5=-99&objId5=-99&preId6=-99&objId6=-99&preId7=-99&objId7=-99&preId8=-99&objId8=-99 After and including the # everything is null, so I am assuming the # has some special meaning. Is this true? and are there other such characters that will do this?

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  • How to handle error on other thread?

    - by markattwood
    Hi, I'm trying to handle errors that have occurred on other threads the .NET CF program is like below: static void Main() { Thread t = new Thread(Start); t.Start(); ... } void Start() { ... Exception here } In my situation, putting try catch in the Start method is impossible. How can I handle it in the global code?

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  • Combine First, Middle Initial, Last name and Suffix in T-SQL (No extra spaces)

    - by Paul
    I'm trying not to reinvent the wheel here...I have these four fields [tbl_Contacts].[FirstName], [tbl_Contacts].[MiddleInitial], [tbl_Contacts].[LastName], [tbl_Contacts].[Suffix] And I want to create a FullName field in a view, but I can't have extra spaces if fields are blank...So I can't do FirstName + ' ' + MiddleInitial + ' ' + LastName + ' ' + Suffix...Because if there is no middle initial or suffix I'd have 2 extra spaces in the field. I think I need a Case statement, but I thought someone would have a handy method for this...Also, the middleinitial and suffix may be null.

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  • Retrieve all records in a table with nHibernate

    - by brainimus
    I need to retrieve all the records in a table with nHibernate. If I had the key for all the records in the table I could loop and use nHibernate's Get method (this seems inefficient though) but I don't have the keys. I could also use FindAll but this requires criteria or a stored procedure. How can I get all the records from the table?

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  • Using jQuery, how do you mimic the form serialization for a select with multiple options selected in

    - by CarolinaJay65
    Below is my $.ajax call, how do I put a selects (multiple) selected values in the data section? $.ajax({ type: "post", url: "http://myServer" , dataType: "text", data: { 'service' : 'myService', 'program' : 'myProgram', 'start' : start, 'end' : end , }, success: function(request) { result.innerHTML = request ; } // End success }); // End ajax method EDIT I should have included that I understand how to loop through the selects selected options with this code: $('#userid option').each(function(i) { if (this.selected == true) { but how do I fit that into my data: section?

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  • buttons and menu items in cocos2d/objective-c

    - by peter61
    In my app, I'd like a method called whenever the user taps the screen (anywhere on the screen). Normally, I'd make a transparent UIButton that covers the whole screen. If I'm using the cocos2d framework, what's the best way to do this? Is it good practice to still use UIButtons? I've been reading about MenuItems but haven't found an easy way to make one giant fully transparent menu item? Thanks.

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  • Renaming table in rails

    - by Tommy
    I want to rename a table... (any table.) I tried this line of code: ActiveRecord::ConnectionAdapters::SchemaStatements.rename_table(old_name, new_name) Here's the weird thing. I know I got it working the first time, but now I get this error: undefined method `rename_table' for ActiveRecord::ConnectionAdapters::SchemaStatements:Module Was there something I need to set? Or am I going blind here.. Thanks!

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  • Username already exists, when wanting to update userprofile in djago

    - by Ajirapsy
    Whenever i try try to update a userprofile on djano powered web, i get the error, username already exists, please provide another one. I am trying to get it to recognize the authenticated user. ALthough every other thing works, but it would not update until i specify a new username. views.py @login_required def editprofile(request): registeredmember = request.user.get_profile() if request.method == 'POST': userprofile_edit = RegistrationForm(request.POST, instance = registeredmember) if userprofile_edit.is_valid(): userprofile_edit.save() return HttpResponseRedirect('/profile/') else: userprofile_edit = RegistrationForm(instance = registeredmember) return render_to_response('carloan/editprofile.html', {'userprofile_edit': userprofile_edit}, context_instance=RequestContext(request))

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  • pygtk combobox 'changed' does not work

    - by joven
    I'm using pygtk then i used gtk.Combobox when i try to connect on chenged event its working but when i try to select an item that is already selected the changed method does not triggered since the selection does not changed.. so my question is how to connect the changed event even thought the selection does not changed tnx in advance

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  • How to read a file from bottom to top in Ruby?

    - by two2twelve
    I've been working on a log viewer for a Rails app and have found that I need to read around 200 lines of a log file from bottom to top instead of the default top to bottom. Log files can get quite large, so I've already tried and ruled out the IO.readlines("log_file.log")[-200..-1] method. Are there any other ways to go about reading a file backwards in Ruby without the need for a plugin or gem?

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  • How do I remove the alert: "...may not respond to..."

    - by balexandre
    In my .m file I call a method that is inside the same .m file. In the header I have the correct import for the header but I keep getting this alert: What am I doing wrong? What should I do in order to make this error disappear? I'm kinda lost here :-( Even if I changed this to: NSString *path = [[NSString alloc] initWithString:@"...."]; [self parseXMLFileAtURL:path]; [path release];

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  • PHP rsa gePublicKey from .pem file

    - by mazheruddin
    Trying to verify received signature with following code. $file = "C:\key_file.pem"; $keypair = Crypt_RSA_KeyPair::fromPEMString(file_get_contents($file)); $public_key = $keypair->getPublicKey(); $rsa_pub_key = Crypt_RSA_Key::fromString($public_key->toString()); $rsa_obj = new Crypt_RSA; $verify_status = $rsa_obj->validateSign($text,$recieved_signed_sign, $rsa_pub_key) ? 'valid' : 'invalid'; getting error as Fatal error: Call to undefined method PEAR_Error::getPublicKey() in C:\Program Files\xxxx\rsa.php

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  • Custom base class for workflow activity , how to declare dependecy property ?

    - by Ajax2020
    Generally we derive custom activity from Activity or CompositeActivity class, i want to have my custom base class for all activities : like public class BusinessActivity : Activity { } then my custom activities will derive from BusinessActivity . The quetions is if i want ErrorMessageProperty and RetryCountProperty as dependency properties then in the BusinessActivity how to declare third param in Register method like public static DependencyProperty RetryCountProperty = DependencyProperty.Register("RetryCount", typeof(int), typeof(**BusinessActivity**)); What will happen if i derive from BusinessActivity class ?

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  • Precisely Compare 2 images for differences using OpenCV

    - by YS
    Hi, I am working on a project to capture images via webcam in a predefined time interval, and continuously compare the images to a template (good image) and give an error if the difference is tolerance set. I working out using OpenCV. Would like to have advice how should I do it, e.g. best method, etc. Appreciate if any one can help me on this. Thanks.

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  • map view is struck in android

    - by Aswan
    Hi folks, i am developing android applicaiton disply user overlays on map.user values getting from webservices for disply overlays.when i tap on map and move it is calling draw method and connecting to webservices while connecting webservice and getting data my apps is struck show force close error .how can i resolve this problem

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  • activating the class need help.... :)

    - by asm_debuger
    this is my code... i dont anderstend way the class dont work... import java.awt.BorderLayout; import java.awt.Button; import java.awt.Color; import java.awt.GridLayout; import java.awt.Panel; public class Caldesinger { public Panel p1=new Panel(); public Button[] arr=new Button[20]; public String[] name = {"9","8","7","6","5","4","3","2","1","0","+","-","*","/",".","cos","sin","=","pow"}; public Caldesinger() { for (int i = 0; i < arr.length; i++) { this.arr[i]=new Button(""+name[i]); } } public Panel getP1() { return p1; } public void setP1(Panel p1) { this.p1 = p1; } public Button[] getArr() { return arr; } public void setArr(Button[] arr) { this.arr = arr; } public Object c() { this.p1.setLayout(new GridLayout(4,15)); for (int i = 0; i < arr.length; i++) { arr[i].setBackground(Color.LIGHT_GRAY); arr[i].setForeground(Color.orange); p1.add(arr[i]); } this.p1.setLayout(new GridLayout(4,15)); return this; } } the class desinge the applet this is the main: import java.applet.Applet; import java.awt.BorderLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; public class Mainapp extends Applet implements ActionListener { Caldesinger desinge=new Caldesinger (); public void init() { this.setLayout(new BorderLayout()); this.desinge.c(); } public void ActionPerformed(ActionEvent arg0) { for (int i = 0; i <20; i++) { if(arg0.getSource()== this.desinge.arr[i]); } } } way the method c does not work? the method desinge the applet

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  • How can I download a script using Javascript and supply a header to the GET?

    - by Alan
    I have this method for downloading a script: var script = document.createElement('script'); script.setAttribute("src", url); document.getElementsByTagName("head")[0].appendChild(script); This gives me a GET like this: GET http://127.0.0.1:17315/Scripts/abc.js HTTP/1.1 However I need to add a header: Authorization: Bearer Ipnsfm9h1MWYIM0n1ng Can anyone tell me how I can add a header when I am using Javascript to perform the GET?

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  • Dynamic class_name for has_many relations

    - by vooD
    I'm trying to make has_many relation with dynamic class_name attribute class Category < ActiveRecord::Base has_many :ads, :class_name => ( lambda { return self.item_type } ) end or class Category < ActiveRecord::Base has_many :ads, :class_name => self.item_type end But i got errors: can't convert Proc into String or undefined method `item_type' for #<Class:0xb62c6c88> Thank you for any help!

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  • Passing data between asp.net pages

    - by user204588
    Hello, I'm wondering the opinion of what is the best way to pass a lot of values between pages. I was thinking of either saving the values to a database, using context.Items[], or Session[]. I'm not sure about what is the best method. I'm passing probably around 40 variables.

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