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  • I can't delete record in Codeigniter

    - by jomblo
    I'm learning CRUD in codeigniter. I have table name "posting" and the coloumns are like this (id, title, post). I successed to create a new post (both insert into database and display in the view). But I have problem when I delete my post in the front-end. Here is my code: Model Class Post_Model extends CI_Model{ function index(){ //Here is my homepage code } function delete_post($id) { $this->db->where('id', $id); $this->db->delete('posting'); } } Controller Class Post extends CI_Controller{ function delete() { $this->load->model('Post_Model'); $this->Post_Model->delete_post("id"); redirect('Post/index/', 'refresh'); } } After click "delete" in the homepage, there was nothing happens. While I'm looking into my database, my records still available. Note: (1) to delete record, I'm following the codeigniter manual / user guide, (2) I found a message error (Undefined variable: id) after hiting the "delete" button in the front-end Any help or suggestion, please

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  • Go to file in Visual Studio

    - by Effata
    I've recently started a new job working with webdevelopment in .NET. Coming from a php and rails background i've been working mainly in Eclipse and NetBeans, along with some TextMate. I find myself missing a few great keyboard shortcuts and i can't seem to find a Visual Studio equivalent. NetBeans has the awesome "Go To File" and so does Eclipse with this plugin. Eclipse also has the option of quick searching in the open file list with Cmd/Ctrl-E. Is there something like this in Visual Studio? Either build in or via plugin. Or is there some other way of quickly navigating between files that's prefered?

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  • How to open a new screen with additional parameters?

    - by Solo
    I've read through the FAQ of Android Dev Guid (http://developer.android.com/guide/appendix/faq/commontasks.html#opennewscreen) but I'm not sure how can I open a new screen with additional parameters passed into it. Let's say I'm going to open screen2, with a variable indicating the current user name so that I could greet the users. Is it possible? Intent i; i = new Intent(this, screen2.class); //How to pass variable to screen2? startActivity(i);

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  • Count number of results in a View

    - by Jukebox
    I need to count how many people belong in pre-defined groups (this is easy to do in SQL using the SELECT COUNT statement). My Views query runs fine and displays the actual data in my table, but I simply need to know how many results it found. However there doesn't seem to be a COUNT option in views. I am guessing I am going to have to use some sort of views hook, and then stick the result in the table. Here's a quick example of what i'm trying to achieve: My Table ---------------------- Group A | 20 people Group B | 63 people and so on. (I've tried using the Views_Calc module, but I get errors because it is not quite stable yet.) Anybody know of an easy way to count results in Views?

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  • CouchDB emit with lookup key that is array, such that order of array elements are ignored.

    - by MatternPatching
    When indexing a couchdb view, you can emit an array as the key such as: emit(["one", "two", "three"], doc); I appreciate the fact that when searching the view, the order is important, but sometimes I would like the view to ignore it. I have thought of a couple of options. 1. By convention, just emit the contents in alphabetical order, and ensure that looking up uses the same convention. 2. Somehow hash in a manner that disregards the order, and emit/search based on that hash. (This is fairly easy, if you simply hash each one individually, "sum" the hashes, then mod.) Note: I'm sure this may be covered somewhere in the authoritative guide, but I was unsuccessful in finding it.

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  • How to use default.ctp in cakephp

    - by Louis Stephens
    I just finished the "15 min Blog Post tutorial" included in the documentation for cakephp. I was asked for another tutorial to change the layout for first tutorial. However, I am fairly new to MVC programming/Cakephp and I have no real clue how to do so. Well, I know I need "default.ctp" placed in app/views/layouts/ and I presume I need to include to include my data? . . . I am really at a loss of what to do. I set up my default.ctp as I mentioned above, but when I go to localhost:9999/posts the layout is still the same. I guess I need to include a stylesheet (and if so, where?) I guess if someone can point me in the right direction to a beginner's guide to layout styling or how to use it I would greatly appreciate any help.

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  • MySQL Insert Query Randomly Takes a Long Time

    - by ShimmerTroll
    I am using MySQL to manage session data for my PHP application. When testing the app, it is usually very quick and responsive. However, seemingly randomly the response will stall before finally completing after a few seconds. I have narrowed the problem down to the session write query which looks something like this: INSERT INTO Session VALUES('lvg0p9peb1vd55tue9nvh460a7', '1275704013', '') ON DUPLICATE KEY UPDATE sessAccess='1275704013',sessData=''; The slow query log has this information: Query_time: 0.524446 Lock_time: 0.000046 Rows_sent: 0 Rows_examined: 0 This happens about 1 out of every 10 times. The query usually only takes ~0.0044 sec. The table is InnoDB with about 60 rows. sessId is the primary key with a BTREE index. Since this is accessed on every page view, it is clearly not an acceptable execution time. Why is this happening? Update: Table schema is: sessId:varchar(32), sessAccess:int(10), sessData:text

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  • update dialog title for each click

    - by Scarface
    Hey guys I have a quick question, I have a dialog box that has multiple links with different attributes. Each time a link is clicked, the attribute src is printed inside of the dialog box so that each link has a unique output in the dialog. My problem is simply that only the first src title is in every box and I would like to change that as well with each click. I separated the line containing title to show the problem. If anyone has any ideas I would appreciate it. <a class="open" src="something" title="Click to play">link</a> <a class="open" src="something else" title="Click to play">link2</a> $('.open').click(function() { src=$(this).attr('src'); $('#show').html(''+src+''); $(\"#show\").dialog({hide: 'clip', width: 400,height: 150,position: 'center', show: 'clip',stack: true,title: ''+src+'', minHeight: 25, minWidth: 100, autoOpen: false,resizable:false}); $('#show').dialog('open'); })

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  • C# performance of static string[] contains() (slooooow) vs. == operator

    - by Andrew White
    Hiya, Just a quick query: I had a piece of code which compared a string against a long list of values, e.g. if(str == "string1" || str = "string2" || str == "string3" || str = "string4". DoSomething(); And the interest of code clarity and maintainability I changed it to public static string[] strValues = { "String1", "String2", "String3", "String4"}; ... if(strValues.Contains(str) DoSomething(); Only to find the code execution time went from 2.5secs to 6.8secs (executed ca. 200,000 times). I certainly understand a slight performance trade off, but 300%? Anyway I could define the static strings differently to enhance performance? Cheers.

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  • How to connect these together?

    - by Biertago
    I've got a mysql database created by phpMyAdmin and I want to use it in my Qt project. I tried it on Visual Studio 2010 with an qt addon but it didn't work neither. In Qt Creator, I add: QT += sql in a .pro file and include: #include <QSqlDatabase> in the main file but there's a driver error. I don't know even where to start and each google page shows something different. I tried to look for some guide but there is nothing which concerns everything in []s.

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  • How to view the GDTR's value ?

    - by Mehdi Asgari
    Hi In the book "Rootkit Arsenal" page 84 (Chapter 3) mentions: ..., we can view the contents of the target machine's descriptor registers using the command with the 0x100 mask: kd rM 0x100 and a paragraph below: Note that the same task can be accomplished by specifying the GDTR components explicitly: kd r gdtr .... I run Windbg on my Win XP (inside VMWare) and choose the Kernel Debug - Local. My problem is in case of first command, windbg errors with: lkd rM 0x100 ^ Operation not supported in current debug session 'rM 0x100' and in the second command: lkd r gdtr ^ Bad register error in 'r gdtr' Can anyone guide me ?

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  • Delete files in C# that windows does not want me to delete?

    - by user315881
    At my company, we are writing a script to take care of simple tasks that we usually would do by hand. I am using c# to delete profiles in c:\documents and settings\, except a few. These will simply be left alone. The problem is that even with code that sets the files to normal and marks the admin user as an owner, they won't delete. They say that the quick launch folder has access denied. I am using a recursive permissions change method and I know that it works. Same thing with file attributes. Why won't it work? How do I fix this?

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  • using drupal 6 or 7 for a new PHP web application?

    - by ajsie
    if i create a new web application tomorrow, should i use Drupal 6 or 7? i have never used drupal before so i have to start learning it first (very familiar with PHP) so i can understand the basics and how to extend it. my concerns for using 7: no modules contributed yet? so i dont have all the fancy stuff i can add like in Drupal 6? no good documentation and lack of web tutorials? how could i learn about it if there is not that much support? too early in the development process? it's not stable enough? i would like to use 7 cause i dont want to relearn everything and 7 is indeed just around the corner. but im afraid that it lacks all other stuff version 6 has. could someone guide me into right direction? thanks

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  • Enableeventvalidation in web user control

    - by Khushi
    Hi, i have a web user control containing a repeater. The repeater contains three buttons. On button click it gives the following error : Invalid postback or callback argument. Event validation is enabled using in configuration or <%@ Page EnableEventValidation="true" % in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation. Since user control does not have page directive, so i changed the enableEventValidation to false, but it restricted the itemcommand event of the repeater. Can someone guide me, how to solve this problem?

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  • jQuery.get() - Practical uses?

    - by RedWolves
    I am trying to understand why you would use jQuery.get() and jQuery.get(index). The docs say it is to convert the jQuery selection to the raw DOM object instead of working with the selection as a jQuery object and the methods available to it. So a quick example: $("div").get(0).innerHTML; is the same as: $("div").html(); Obviously this is a bad example but I am struggling to figure when you would use .get(). Can you help me understand when I would use this method in my code?

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  • I'm looking for a blend mode that gives 'realistic' paint colors. (Subtractive)

    - by almosnow
    I've been looking for a blend mode to (well ...) blend two RGB pixels in order to build colors in the samw way that a painter builds them (i.e: subtractive). Here are quick examples of the type of results that I'm expecting: CYAN + MAGENTA = BLUE CYAN + YELLOW = GREEN MAGENTA + YELLOW = RED RED + YELLOW = ORANGE RED + BLUE = PURPLE YELLOW + BLUE = GREEN I'm looking for a formula, like: dest_red = first_red + second_red; dest_green = first_green + second_green; dest_blue = first_blue + second_blue; I've tried with the commonly used 'multiply' formula but it doesn't work; I've tried with custom made formulas but I'm still not able to 'crack' how it should work. And I know already a lot of color theory so please refrain from answers like: Check this link: http://the_difference_betweeen_additive_and_subtractive_lightning.html

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  • Application Role and access second database

    - by lszk
    I have written a script to create an audit trails to my database in a second one db. So far I had no problems during tests on my dev machine from SQL Server Management Studio. Problems started to occurs when I first tried to test my triggers from my application by modyfing data in it. Using profiler I found out, that my audit trails db is not visible in sys.databases, so here lies the problem. The application using an Application Role, so as I found on MSDN, that's why I can't get access to other db on the server. I'm not a DBA. I have no experience with properly settings the security stuff, so please guide me, how can I set the setting for guest account (according to MSDN) to get access to this db? I need to have a record for this database in sys.databases and I need to be able to insert data in this database in all tables. No select, update or delete I need.

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  • select field information with min time value

    - by Scarface
    Hey guys quick question, I thought I was doing the right thing but I keep getting the wrong result. I am trying to simply find the id of the entry with the min time, but I am not getting that entry. $qryuserscount1="SELECT id,min(entry_time) FROM scrusersonline WHERE topic_id='$topic_id'"; $userscount1=mysql_query($qryuserscount1); while ($row2 = mysql_fetch_assoc($userscount1)) { echo $onlineuser= $row2['id']; } That is my query, and it does not work. This however does work which does not make sense to me SELECT id FROM scrusersonline WHERE topic_id='$topic_id' ORDER by entry_time LIMIT 1, can anyone quickly point out what I am doing wrong?

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  • Need a field / flag / status number for mutliple use ?

    - by Jules
    I want to create a field in my database which will be easy to query. I think if I give a bit of background this will make more sense. My table has listings shown on my website. I run a program which looks at the listings a decides whether to hide them from being shown on the site. I also hide listings manually for various reasons. I want to store these reasons in a field, so more than one reason could be made for hiding. So I need some form of logic to determine which reasons have been used. Can anyone offer me any guidance on what will be future-proof aka new reasons and what will be quick and easy to query upon ?

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  • Append more that one control to div

    - by Kemrop
    Ok this will be quick. I am collecting data in div by inserting hidden input boxes before i eventually submit to the server. here is Javascript code. function appendToDiv() { var mydiv=document.getElementById("somediv"); var mydata=document.getElementsByName("description")[0].value; var myurl=document.getElementsByName("url")[0].value; var data=mydata+myurl; mydiv.innerHTML="<input type='hidden' name='sUrl[]'value='"+data+"'/" } I have an onchange event that keeps calling the above guy until i am satisfied that i have all i need to send to the server.Problem is only one input get appended to the div.What could i be missing.

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  • How to set up Node server for production on own machine?

    - by Matt Hintzke
    This must be a pretty basic thing to do, but I cannot find any good guide on how to do it on the internet. I only find how to set up a development environment for Node. I want to be able to forward my R-Pi's port 80 to my Node server, which I want to obviously listen on port 80. How can I close the native port 80 so that I can let me Node server listen on that port. Ultimately, I want to be able to access my pi from any remote location. I know how to set up a static IP and forward the port on my router, but now how do I allow Node into port 80?

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  • java.util.Observable, will clients complete executing their update() before continuing

    - by jax
    When I call: setChanged(); notifyObservers() on a java.until.Observable class, will all the listening Observer objects complete execution of their udpate() methods - assuming we are running in the same Thread - before the java.until.Observable class continues running? This is important because I will be sending a few messages through the notifyObservers(Object o) method in quick concession, it is important that each Observer class has finished its method before the new one though. I understand that the order of execution for each Observer class may vary when we call notifyObservers() - it is just important that the order of method execution for each individual instance is in order.

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  • Perl date function/module able to understand full unabbreviated months.

    - by s2cuts
    Let's say I read in a string from somewhere that contains a date, and it's date format doesn't abbreviate the month. Is there a module that can handle reading it in, and then outputting it to whichever format I choose? I've taken a quick look through CPAN, and every date module I looked at didn't seem to accommodate an unabbreviated month. Thanks for any help EDIT: As an example, say we have a string like this; "2 February 1988". Now we want to convert it into "1988-02-02" (YYYY-MM-DD).

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  • How can I learn Android?

    - by Daisama
    I am a freshman in college which has been Java programming for over a year. I haven taken a couple of programming courses, both of which were with Java. And I have done web development for several years. So overall, I would't say that I am a complete beginner in programming. Recently, I have developed a strong interest in developing for Android. I read that Android development was with Java and I thought it would making development easier for me. But I was very wrong. Based on reviews from Amazon, I have begun reading "Professional Android Application Development by Meier but everything is going over my head. The Busy Coder's Guide to Android Development seems a bit more for my level but I still want everybody else's opinion. The Google stuff isn't very helpful to me at my level and neither are the tutorials on anddev and such. Any advice for a complete beginner on how to get started? Thanks.

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  • How to implement Pentago AI algorithm

    - by itsho
    Hi, i'm trying to develop Pentago-game in c#. right now i'm having 2 players mode which working just fine. the problem is, that i want One player mode (against computer), but unfortunately, all implements of minimax / negamax are for one step calculated. butin Pentago, every player need to do two things (place marble, and rotate one of the inner-boards) I didn't figure out how to implement both rotate part & placing the marble, and i would love someone to guide me with this. if you're not familiar with the game, here's a link to the game. if anyone want's, i can upload my code somewhere if that's relevant. thank you very much in advance

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