Search Results

Search found 20592 results on 824 pages for 'anything'.

Page 535/824 | < Previous Page | 531 532 533 534 535 536 537 538 539 540 541 542  | Next Page >

• Are there any alternative to the header(); function ?

  - by Simon

  The thing is, I have a log-in page. And, when user enters Username & Password, they must be re-directed to success/failure page. Now, I have placed a "header('location:welcome.php');" after mysql rows are returned. But, it is giving me Header already sent errors, and I don't know much about PHP to do anything about it, let alone understand why it is happening. So, how to you transfer a user to another page after log-in data is verified? Same problem is happening with register, post, comment and search functions in my site.

  Read the article

• RoR: Condition Always False - Why?

  - by Matt Hollingsworth

  Working in RoR 2.3.x. My quiz_results table has a row for user_id (3907) and result (0.1), and two users I'm looking at with no rows in the quiz_results table. This line keeps returining false: -if QuizResult.find_by_user_id(@user_id).present? But if I change it to anything that returns true, the next line reports an error on the * method: ="#{(QuizResult.average('score', :conditions => 'user_id = #{@user.id}') * 100).round}%" The beginning of the code is a loop: [email protected] do |user| Any ideas how to fix? Have tried unsuccessfully all day.

  Read the article

• Regex if-else expression

  - by craig

  I'm trying to extract the # of minutes from a text field using Oracle's REGEXP_SUBSTR() function. Data: Treatment of PC7, PT1 on left. 15 min. 15 minutes. 15 minutes 15 mins. 15 mins 15 min. 15 min 15min 15 In each case, I'm hoping to extract the '15' part of the string. Attempts: \d+ gets all of the numeric values, including the '7' and '1', which is undesirable. (\d)+(?=\ ?min) get the '15' from all rows except the last. (?((\d)+(?=\ ?min))((\d)+(?=\ ?min))|\d+), an if-else statement, doesnt' match anything. What is wrong with my if-else statement?

  Read the article

• How to use Joomla to allow users to create/update data on my site?

  - by gromo

  Right now Im using an extension called chronoforms but Im open to anything that works. I can make forms just fine, and it saves the submitted data to a table. Where I am stuck is, how do I then allow my front end users who filled out and submitted the form to go back, view their old answers, change them, and resubmit them or resave them. In order to do this I think I would need to be able to retrieve their last answers from the table on which it is stored, replug the last specific data record for that user only back into the original form on the front end and let the user change and resubmit it? Unless there is a better way to allow the user to change their answers to a form and resave them? If anyone knows how to do this, or if there is a better way I should be going about doing this, (perhaps there is another extension that handles this kind of thing) please let me know. Thanks!

  Read the article

• class member access specifiers and binary code

  - by pdehaan

  I understand what the typical access specifiers are, and what they mean. 'public' members are accessible anywhere, 'private' members are accessible only by the same class and friends, etc. What I'm wondering is what, if anything, this equates to in lower-level terms. Are their any post-compilation functional differences between these beyond the high-level restrictions (what can access what) imposed by the language (c++ in this case) they're used in. Another way to put it - if this were a perfect world where programmers always made good choices (like not accessing members that may change later and using only well defined members that should stay the same between implementations), would their be any reason to use these things?

  Read the article

• A simple log file format

  - by hgulyan

  Hi, I'm not sure if it was asked, but I couldn't find anything like this. My program uses a simple .txt file for log purposes, It just creates/opens a file and appends lines. After some time, I started to log quite a lot of activities, so the file became too large and hardly readable. I know, that it's not write way to do this, but I simply need to have a readable file. So I thought maybe there's a simple file format for log files and a soft to view it or if you'd have any other suggestions on this question? Thanks for help in advance.

  Read the article

• Lucene boost: I need to make it work better

  - by zvikico

  I'm using Lucene to index components with names and types. Some components are more important, thus, get a bigger boost. However, I cannot get my boost to work properly. I sill get some components appear later (get worse score), even though they have a higher boost. Note that the indexing is done on one field only and I've set the boost to that field alone. I'm using Lucene in Java. I don't think it has anything to do with the field length. I've seen components with the same name (but different type) get the wrong score.

  Read the article

• communicate with a process in utf-8 on a cp1252 consoless

  - by Mapad

  I need to control a program by sending commands in utf-8 encoding to its standard input. For this I run the program using subprocess.Popen(): proc = Popen("myexecutable.exe", shell=True, stdin=PIPE, stdout=PIPE, stderr=PIPE) proc.stdin.write(u'ééé'.encode('utf_8')) If I run this from a cygwin utf-8 console, it works. If I run it from a windows console (encoding ='cp1252') this doesn't work. Is there a way to make this work without having to install a cygwin utf-8 console on each computer I want it to run from ? (NB: I don't need to output anything to console)

  Read the article

• Notify the user on Facebook at some time

  - by martin.malek

  Let's say I have a Facebook application which is monitoring friends birthdays. I want to notify the user that her friend will have a birthday in next two days. The first part is only cron which will check the dates, but is there any way how to notify the user? I didn't found anything for this. It was there a year ago but all of the API changes it looks like the removed all offline messages. I don't want to send an email to the user, it will be much more better to stay with everything on Facebook.

  Read the article

• visual c# 2010 communicating between two projects

  - by cake is a joke

  I am trying to create a windows form project, and use speech recognition for the Kinect with the Kinect to Windows SDK. I have the form application project (p1) and the Kinect speech project (p2) which is a command prompt. I made it a command prompt because it was the easiest way to do things. Anyway, I have read and found two things about this. 1)I found out how to run two projects at the same time in the same solution. 2) I also found out how to add references to get classes from each project to the other. So, how would I get variables from each project? Just by using project references, or something? P2 can recognize speech and save it to variables, if that counts for anything.

  Read the article

• VB to c++ or c#?

  - by hilzmas

  I am trying to translate this code but I don't understand how to use the GET / PUT part of the code in another language like c++ or c#. This is the code : Private Sub cmd_Click() Dim i As Integer, a As Integer a = 10 For i = 1 To a Dim file As String Open "txt" For Binary As #1 file = Space(LOF(1)) Get #1, , file Close #1 Randomize Open "txtpath" & "\" & i & "txtname" For Binary As #1 Put #1, , file Put #1, , Rnd Close #1 Next i End Sub The code could have bug because I replaced variables with plain text. What I understand is that the code get a file and then save it with some random data added to make it look different than the original. I don't use vb since years and I don't remember anything about it. Can someone help me porting this snippet to c++ or c#?

  Read the article

• Usage examples of binary search

  - by python dude

  I just realized that in my 4+ years of Java programming (mostly desktop apps) I never used the binary search methods in the Arrays class for anything practical. Not even once. Some reasons I can think of: 100% of the time you can get away with linear search, maps or something else that isn't binary search. The incoming data is almost never sorted, and making it sorted requires an extra sorting step. So I wonder if it's just me, or do a lot of people never use binary search? And what are some good, practical usage examples of binary search?

  Read the article

• Macros giving problems with dladdr()

  - by Veger

  I have implemented tracing behavior using the -finstrument-functions option of gcc and this (simplified) code: void __cyg_profile_func_enter(void *this_fn, void *call_site) { Dl_info di; if(dladdr(this_fn, &di)) printf("entered %s\n", (di.dli_sname?di_dli_sname:"<unknown>")); } This works great, except for one thing: macros are processed as well, but the function prints the information of the function which contains the macro. So functions containing macros have their information printed multiple times (which is of course undesired). Is there anything to detect that a macro is being processed? Or is is possible to turn off instrumenting macros at all? PS Same problems occur with sizeof()

  Read the article

• How can I define a one-time event so that new handlers fire (once) even after the event has already occurred?

  - by harpo

  You know how this $(function() { ... }); will fire whether or not the "document ready" event has already occurred? I want to define an event like that. That event is a special case in jQuery. I'm wondering if a custom event can behave in the same way, using only the standard event mechanisms. Ideally, I'd like to be able to define handlers in the "normal" way: $(document).on("init.mything", function() { ... }); This works now if the above runs before init.mything is triggered. But if it doesn't, then the handler never runs. What makes this tricky is, I don't want to assume anything except that jQuery has loaded. Any ideas?

  Read the article

• Where can I find the project templates for ASP.NET MVC 1.0?

  - by Jason

  I would like to edit the ASP.NET MVC templates for Visual Studio so that any new action or controller created has a specific piece of code within it by default. For instance, I'd like to replace the generated: public ActionResult MyAction() { return View(); } with a specific coding standard we prefer to use within in my team. eg: public ActionResult About() { try { DoStuff(); return View(); } catch(Exception) { HandleException(); } } I've looked through the filesystem, but I cannot find anything specific that relates to the ASP.NET mvc templates. Anyone know where they are?

  Read the article

• Eclipse debug - line: not available

  - by Mike

  I can't seem to find anything on google telling me why this might be and what the resolution is. I'm Stepping through third party code (that I have the source for) and would really like to see the current line being executed... Looking at javac compile flags, I see the -g:none flag. If this flag is set, would this be enough to explain why I'm not able to see line numbers? If so, why would someone do this, are there performance implications? Do I need to recompile the jar myself to attach the missing debug info (if possible)? Thanks!

  Read the article

• Buttons created through jquery don't respond to clicks

  - by Atrus

  As I've come to understand using $('.whatever').click() only works for items created initially. Additional items won't respond in the correct fashion. I was then directed to using something like $('.whatever).on('click', myFunction()). However, I'm not detecting any difference, as newly created items are not called. Here is a JSFiddle demonstration my example code: http://jsfiddle.net/atrus6/zaKZN/ My initial input plus 'Kill' will work in the correct fashion, however any additional 'input + kill's will not not do anything. Am I incorrectly using .on() or is it something else?

  Read the article

• Java FileDialog programmatically set size

  - by rwallace

  I want to display a Java FileDialog and sets its initial size to something reasonable (it doesn't show the maximize button, and a lot of users might not know you can use alt-space X instead). I tried setBounds but it didn't do anything, and I don't see a method for maximizing it; what am I missing? Update: on Windows at least, the system file dialog remembers size and maximize state even across program invocations, so the user can set it to the desired size just once and it will stay that way; that seems sufficient, so I will leave it at that.

  Read the article

• Is a Critical Section around an integer getter and setter redundant?

  - by Tim Gradwell

  Do critical sections inside trivial int accessors actually do anything useful? int GetFoo() { CriticalSection(crit_id); return foo; } void SetFoo(int value) { CriticalSection(crit_id); foo = value; } Is it possible for two threads to be attempting to read and write foo simultaneously? I'd have thought 'no' unless integers are written byte-at-a-time, in which case I can see the use. But I'd have though modern cpus would read/write integers in a single atomic action...

  Read the article

• Converting a macro to an inline function

  - by Rob

  I am using some Qt code that adds a VERIFY macro that looks something like this: #define VERIFY(cond) \ { \ bool ok = cond; \ Q_ASSERT(ok); \ } The code can then use it whilst being certain the condition is actually evaluated, e.g.: Q_ASSERT(callSomeFunction()); // callSomeFunction not evaluated in release builds! VERIFY(callSomeFunction()); // callSomeFunction is always evaluated Disliking macros, I would instead like to turn this into an inline function: inline VERIFY(bool condition) { Q_ASSERT(condition); } However, in release builds I am worried that the compiler would optimise out all calls to this function (as Q_ASSERT wouldn't actually do anything.) I am I worrying unnecessarily or is this likely depending on the optimisation flags/compiler/etc.? I guess I could change it to: inline VERIFY(bool condition) { condition; Q_ASSERT(condition); } But, again, the compiler may be clever enough to ignore the call. Is this inline alternative safe for both debug and release builds?

  Read the article

• String formatting [str.format()] with a dictionary having a key which is a str() of a number

  - by decimus phostle

  Python neophyte here. I was wondering if someone could help with the KeyError I am getting when using a dictionary for string interpolation in str.format. dictionary = {'key1': 'val1', '1': 'val2'} string1 = 'Interpolating {0[key1]}'.format(dictionary) print string1 The above works fine and yields: Interpolating val1 However doing the following: dictionary = {'key1': 'val1', '1': 'val2'} string2 = 'Interpolating {0[1]}'.format(dictionary) print string2 results in: Traceback (most recent call last): File "test.py", line 3, in <module> string2 = 'Interpolating {0[1]}'.format(dictionary) KeyError: 1L So the problem seems to be in the interpretation of the numeric key as a list index, IMHO. Is there any way to work around this? (i.e. convey that this is instead a dictionary key) TIA and apologies if this question has been asked before(couldn't find anything relevant with my search-fu).

  Read the article

• class member access specifiers

  - by pdehaan

  I understand what the typical access specifiers are, and what they mean. 'public' members are accessible anywhere, 'private' members are accessible only by the same class and friends, etc. What I'm wondering is what, if anything, this equates to in lower-level terms. Are their any post-compilation functional differences between these beyond the high-level restrictions (what can access what) imposed by the language (c++ in this case) they're used in. Another way to put it - if this were a perfect world where programmers always made good choices (like not accessing members that may change later and using only well defined members that should stay the same between implementations), would their be any reason to use these things?

  Read the article

• NoMethodError in UsersController#create

  - by Mike DeVerna

  I'm getting stuck on an error I'm getting when signing up a new user in Michael Hart's Ruby on Rails Tutorial. I'm new to rails but I've been searching for hours and can't seem to find anything to figure out the issue. My initial thought is that it's specific to the following line: redirect_to @user This is my file for users_controller.rb #!/bin/env ruby # encoding: utf-8 class UsersController < ApplicationController def show @user = User.find(params[:id]) end def new @user = User.new end def create @user = User.new(params[:user]) if @user.save flash[:success] = "Welcome to the Sample App!" ?????????????? redirect_to @user else render 'new' end end end This is the error message I get: NoMethodError in UsersController#create undefined method `??????????????' for # Rails.root: /Users/mikedeverna/Documents/rails_projects/sample_app Application Trace | Framework Trace | Full Trace app/controllers/users_controller.rb:18:in `create' Here is the code in my routes.rb file: SampleApp::Application.routes.draw do resources :users resources :sessions, only: [:new, :create, :destroy] root to: 'static_pages#home' match '/signup', to: 'users#new' match '/signin', to: 'sessions#new' match '/signout', to: 'sessions#destroy', via: :delete match '/help', to: 'static_pages#help' match '/about', to: 'static_pages#about' match '/contact', to: 'static_pages#contact'

  Read the article

• What to use instead of if(isset($_POST['submit'])) for this.form.submit()?

  - by paracaudex

  I want to run a particular block of PHP if the user submits a form. It works if I use a submit button with name="submit" and: <?php if(isset($_POST['submit'])) { code to run } ?> I don't know anything about javascript, and I want the code to run if the user changes a dropdown menu. If I make the first line of the dropdown <select name="dropdownname" onchange="this.form.submit()"> the form appears (I haven't tested it) to submit if the user changes the dropdown choice. However, if I do this, the if(isset($_POST['submit'])) PHP code doesn't run. Is there a PHP if statement I can write that will respond to the form being submitted even though it's being submitted by a change in the dropdown and not a submit button?

  Read the article

• Secure Menu Items Based on User

  - by Mike Wills

  On this winform application I am writing, I want to secure one menu item from most users. It runs a month-end and cannot be easily backed out if accidentally run. The menu option opens up a window to prompt the user for some information before processing. I don't care where exactly I do the check, but I want to be sure only certain users can run this function. A Google search (on my question title above) didn't turn up anything obvious. Can anyone point me in a direction to pick up who is signed into Windows and how to check if they are authorized?

  Read the article

< Previous Page | 531 532 533 534 535 536 537 538 539 540 541 542  | Next Page >