Search Results

Search found 14605 results on 585 pages for 'variable definition'.

Page 280/585 | < Previous Page | 276 277 278 279 280 281 282 283 284 285 286 287  | Next Page >

• Managing a user's PHP session with Cocoa Touch

  - by Calvin L

  I'm building an iPhone app, which will allow users to log in to a PHP web server that authenticates the user and starts a session. My idea for managing a session is to create a singleton User class that has a sharedLogin method. Would it be prudent to store the session variable in the shared instance in order to maintain the session?

  Read the article

• about null values!

  - by user329820

  Hi I have a question that if we declare a variable and then do not set it explicitly to null value then it would be null outomatically ,i mean that the below code will return true or false ? thanks DECLARE @val CHAR(4) If @val = NULL

  Read the article

• Ruby on Rails server running in production mode shouldn't show any error details?

  - by Jian Lin

  I thought I read that when a Ruby on Rails server is running in production mode, it won't say so much about an error (the details, showing the code)... but I just try to run the server using ruby script/server -e production and add a <%= x %> with the local variable x undefined. It showed a lot of error details including the code... is there a way to make it look better?

  Read the article

• how to call a helper method from controller in rails?

  - by siulamvictor

  I created a helper method for some simple calculation. This helper method will just return an integer. I need the helper in both controllers and views. Unfortunately, it work well in views but not in controllers. I get the undefined local variable or method error. How can I fix it? Thanks all

  Read the article

• How to change aif to be able to access 'it' within the macrocall without making 'it' public in the package

  - by Sim

  If you put the aif code presented in onlisp in a package and try to use it in another you run in the problem that packagename:it is not external. (in-package :packagename) (defmacro aif (test-form then-form &optional else-form) ‘(let ((it ,test-form)) (if it ,then-form ,else-form))) wanted call syntax (in-package :otherpackage) (aif (do-stuff) (FORMAT t "~a~%" it) (FORMAT t "just got nil~%")) How can I fix this behavior in code, without making the variable it external in the package declaration and beeing able to access it just by it instead of packagename:it?

  Read the article

• How to get notifications from Windows Update when optional updates are available?

  - by Tom

  On my Windows 7 I set windows update to "download updates, but let me choose whether to install them". The problem is I don't get a notification when an optional update is available like definition updates for microsoft security essentials. I have "give me recommended updates the same way I receive important updates" checked, but I have no notification balloon or icon when there is a new optional update is available. From time to time I open Windows update and then I see I have new optional updates available. How to get notifications for those too?

  Read the article

• How do I send information to an HLSL effect in DirectX 10?

  - by pypmannetjies

  I'd like to send my view vector to an ID3D10Effect variable in order to calculate specular lighting. How do I send a vector or even just scalar values to the HLSL from the running DirectX program? I want to do something like render() { //do transformations D3DXMatrix view = camera->getViewMatrix(); basicEffect.setVariable(viewVector, view); //render stuff }

  Read the article

• Any special assertion to test if the resulting integer lies within a range

  - by barerd

  I would like to test if an instance variable lies in a range of numbers. I solved the problem by using assert_in_delta but would like to know if there is a formal assertion for this. #part of the tested class def initialize(value = 70 + rand(30)) @value = value end #test_value.rb class ValueTestCase < Test::Unit::TestCase def test_if_value_in_range assert_in_delta(85, p.value, 15) end end

  Read the article

• ALTER TABLE my_table ADD @column INT

  - by Andreas

  If i want to use a variable as name of the new column, is this posiblem in MS SQL? Example that dont work: ALTER TABLE my_table ADD @column INT

  Read the article

• What is the php syntax for a REGEXP that changes "Last, First" into "Last..First"?

  - by ggg

  I need to create a php search function for names and need to change LastName, FirstName into LastName..FirstName to search the database. I don't know if this helps, but the string will originally be in the form a variable ($Client). I need the syntax for the three statements that find the string, matches, and makes the changes.

  Read the article

• Convert month number to month short name

  - by Roland

  I have a variable with the following value $month = 201002; the first 4 numbers represent the year, and the last 2 numbers represent the month. I need to get the last 2 numbers in the month string name eg. Feb My code looks like this <?php echo date('M',substr($month,4,6)); ?> I can I go about to obtain the month name

  Read the article

• MVC, can model save/load its data?

  - by fuzzygoat

  Quick question, my data model is a singleton object and it contains a list of names I want archive. My idea is to make the model responsible for loading / saving this data. The ModelLoad will then be called by the ViewControllerviewDidLoad and the ModelSave by ViewControllerapplicationWillTerminate. I could do the load / save directly within the ViewController, but this would be messy as the list of names are on instance variable of the model. gary

  Read the article

• file upload with php

  - by Rajanikant shukla

  Hi every body I am uploading file with php every thing is fine but move_uploded_file is not working every variable displayed record and all permission for file is set function uploadfile($filename) { $filetype=$filename["type"]; $filename=$filename['name']; $filetempname=$filename['tmp_name']; if($filetype=="application/msword") { move_uploaded_file($filetempname,"resume/".$filename); } }

  Read the article

• How to get the current URL in jQuery?

  - by venkatachalam

  I am using jQuery. I'd like to get the path of the current URL and assign it to a variable. Example URL: http://localhost/menuname.de?foo=bar&amp;number=0"

  Read the article

• Byte to Integer in c#

  - by jtb

  I am reading a row from a SQL Server table. One of the columns is of type tinyint. I want to get the value into an int or int32 variable. rdr.GetByte(j) (byte) rdr.GetValue(j) ...seems to be the only way to retrieve the value. But I can't figure out how to get the result into an int var.

  Read the article

• How to name variables on the fly in R?

  - by Maiasaura

  Is it possible to create new variable names on the fly? I'd like to read data frames from a list into new variables with numbers at the end. Something like orca1, orca2, orca3... If I try something like paste("orca",i,sep="")=list_name[[i]] I get this error target of assignment expands to non-language object Is there another way around this?

  Read the article

• Methodology for a Rails app

  - by Aaron Vegh

  I'm undertaking a rather large conversion from a legacy database-driven Windows app to a Rails app. Because of the large number of forms and database tables involved, I want to make sure I've got the right methodology before getting too far. My chief concern is minimizing the amount of code I have to write. There are many models that interact together, and I want to make sure I'm using them correctly. Here's a simplified set of models: class Patient < ActiveRecord::Base has_many :PatientAddresses has_many :PatientFileStatuses end class PatientAddress < ActiveRecord::Base belongs_to :Patient end class PatientFileStatus < ActiveRecord::Base belongs_to :Patient end The controller determines if there's a Patient selected; everything else is based on that. In the view, I will be needing data from each of these models. But it seems like I have to write an instance variable in my controller for every attribute that I want to use. So I start writing code like this: @patient = Patient.find(session[:patient]) @patient_addresses = @patient.PatientAddresses @patient_file_statuses = @patient.PatientFileStatuses @enrollment_received_when = @patient_file_statuses[0].EnrollmentReceivedWhen @consent_received = @patient_file_statuses[0].ConsentReceived @consent_received_when = @patient_file_statuses[0].ConsentReceivedWhen The first three lines grab the Patient model and its relations. The next three lines are examples of my providing values to the view from one of those relations. The view has a combination of text fields and select fields to show the data above. For example: <%= select("patientfilestatus", "ConsentReceived", {"val1"="val1", "val2"="val2", "Written"="Written"}, :include_blank=true )% <%= calendar_date_select_tag "patient_file_statuses[EnrollmentReceivedWhen]", @enrollment_complete_when, :popup=:force % (BTW, the select tag isn't really working; I think I have to use collection_select?) My questions are: Do I have to manually declare the value of every instance variable in the controller, or can/should I do it within the view? What is the proper technique for displaying a select tag for data that's not the primary model? When I go to save changes to this form, will I have to manually pick out the attributes for each model and save them individually? Or is there a way to name the fields such that ActiveRecord does the right thing? Thanks in advance, Aaron.

  Read the article

• How to enable systemd instantiated service with puppet?

  - by Richard Pena

  I've got the following puppet service: service { "[email protected]": provider => systemd, ensure => running, enable => true, } When I try to apply this configuration on my client, it throws the following error: err: /Stage[main]//Node[puppetclient]/Service[[email protected]]/enable: change from false to true failed: Could not enable [email protected]: The service is running fine and I can make sure it's started on system boot by adding a symlink to getty.target.wants: ln -s /lib/systemd/system/[email protected] /etc/systemd/system/getty.target.wants/[email protected] Of source, I could go ahead and remove "enable = true" from the service definition and include a the symlink manually in the puppet configuration, but shouldn't puppet take care of this? Am I doing something terribly wrong?

  Read the article

• Installing gtk and compiling using gcc under windows?

  - by sil3nt

  I have gcc installed in c:/programfiles (also set as a path variable), and i have all the necessary files for gtk from http://www.gtk.org/download-windows.html, glib,gtk,pango,atk and cairo. Although I have no clue as to how to compile a c program using gtk with the gcc compiler. How do I set everything up so that it works?. (I don't know where each zip file goes.?) basically I don't really know where start.

  Read the article

• Convert double to int on Arm RVCT compiler in C language

  - by Manik Mahajan

  I need to get last four bytes out of a double variable .The platform is Arm and compiler is RVCT.Programming language used is C.What is the safest way. Thanks

  Read the article

• set the focus of a popup window everytime

  - by hunt

  I have two pages one.html and two.html i am opening a new window using following code //here popup is a global variable popup=window.open('two.html','two'); for the first time a popup window open successfully and get the focus but if i try to open it again without closing already opened popup then two.html is not getting focus for the second time. note: i have set popup window's name as 'two'

  Read the article

• SQL Server Authentication vs Windows Authentication

  - by Nandu

  Hi, I am a SQL Server newbie and would really appreciate any help. I have created a new login (test2) with sql server authentication and granted select & vierw definition permission on another schema (test1) to test2. I am however not able to see the objects of test1 in the object explorer. However I can select the objects from the Query Window. Since this new login is being used to develop reports the user would like to view the objects in the Object Explorer. Another user test3 created using windows authentication and similar permissions is able to see test1's objects in the explorer. Please let me if this is the cause and if not how can help test2 see the objects in Object Explorer.

  Read the article

• Do static local variables in a class persist between objects?

  - by user144182

  class MyClass { static int staticInt; void instanceMethod( int param ) { static int parameter = param; } } Clearly staticInt is shared between all instance of MyClass. But can different instances of MyClass have different values of parameter the static local variable within instaceMethod?

  Read the article

• Can I pass variables to eval?

  - by Nick

  Hi, I am trying to pass a variable to a dynamically declared method like: eval(def test(name) puts name end test 'joe') but it does not work. Is there a way to do this?

  Read the article

• Namespace constant in C#

  - by pm_2

  Is there any way to define a contsant variable for an entire namespace, rather than just within a class? For example: namespace MyNamespace { public const string MY_CONST = "Test"; static class Program { } } Gives a compile error as follows: Expected class, delegate, enum, interface, or struct

  Read the article

< Previous Page | 276 277 278 279 280 281 282 283 284 285 286 287  | Next Page >