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  • ruby looping question

    - by jonepatr
    Hello! I want to make a loop on a variable that can be altered inside of the loop. first_var.sort.each do |first_id, first_value| second_var.sort.each do |second_id, second_value_value| difference = first_value - second_value if difference >= 0 second_var.delete(second_id) else second_var[second_id] += first_value if second_var[second_id] == 0 second_var.delete(second_id) end first_var.delete(first_id) end end end How do I do this, because this doesn't work?

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  • Basic CSS question regarding background images for divs

    - by Mike
    I'm a programmer trying to learn some css and I've already run into a stumbling block. I have the following HTML: <div class="container"> <div class="span-24 last"> Header </div> <div class="span-4"> Left sidebar </div> <div class="span-16"> <div class="span-8"> Box1 </div> <div class="span-4"> Box2 </div> <div class="span-4 last"> Box3 </div> <div class="span-16 last"> Main content </div> </div> <div class="span-4 last"> Right sidebar </div> <div class="span-24 last"> Footer </div> </div> In my css I have the following: body { background-color:#FFFFFF; } div.container { background:url(/images/bck.jpg); } I just want to display an image for the background area for the container div but nothing shows up. If I remove the background section from the css and add background-color:#000000; then I see a black background for the container div. What am I overlooking?

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  • logic question about factorials

    - by Syom
    I have a problem and can't solve it alone. My teacher gives me one logic task today, and i'm sure you can help me. How can I count the number of zeroes at the end of factorial(41). (on paper) I understand that it has nothing to do with programing, but I'm sure programers can help me. Thanks in advance.

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  • Php compatibility question

    - by Undgerman
    I am trying to run cimyadmin(http://cimyadmin.net/) but i am getting a lot of helper depreciation errors and after looking around the web for answers i am convinced its a php issue.Is there a way to run php 5.0.2 or earlier but not less than php 5 code on latest distributions of php.

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  • Log into file or database, readability question

    - by Fungsten
    Hi there! Right now I'm logging some info of the user in my web app in a log file to observe the usage & interest for some services, but I'm interested in checking that info in a readeable way, so I'm questioning if maybe I shall save that info in a database and then retrieve it to show it in tables or whatever. It's better to log in the database for my purposes? Or logging like now I could select/order the info of the log easily?

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  • Question about custom events

    - by Malfist
    I'm making custom events for C# and sometimes it isn't working. This is how I'm making the event happen: private bool isDoorOpen; public bool IsDoorOpen { get { return isDoorOpen;} private set { isDoorOpen = value; DoorsChangeState(this, null);} } And these are the event declarations: //events public delegate void ChangedEventHandler(Elevator sender, EventArgs e); public event ChangedEventHandler PositionChanged; public event ChangedEventHandler DirectionChanged; public event ChangedEventHandler BreaksChangeState; public event ChangedEventHandler DoorsChangeState; This works as long as there are methods attached to the events, but if there isn't, it throws a null ref exception. What am I doing wrong?

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  • Silverlight 3 + DataGrid.SelectedItems Question

    - by user208662
    Hello, I am binding a collection of MyItem class instances to a DataGrid. The MyItem class has a property called "IsSelected". This property can get changed programmatically. How do I propogate that change back to the UI such that if this value is true, the row associated with MyItem is highlighted (selected) and if it is false, the row associated with MyItem is not highlighted? Thank you,

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  • Question regarding xsd

    - by Hima
    I have an application which reads the data from the database, creates an object out of the data, marshalls it into an xml and enqueue the xml to a queue which is producer. The xml is dequeued from the queue by a consumer. I need to use xsds at two different places. For database access while reading the data from the database and For interaction between producer and consumer Can the same xsd be used in both the cases? Or do I need to use different xsds?

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  • postgres syntax question for OR?

    - by Dashiell0415
    The first one below works, but, just wanted to see if there's a better way... If I'm trying to find all records that start with 'C' with either a flag of 2 or a status of 9, do I need to incorporate the 'C' criteria twice? i.e., "SELECT * FROM mytable WHERE name like 'C%' AND flag = 2 OR name like 'C%' AND status = 9" Or, is there a way quicker way to write it so that I only need to set 'C%' once?

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  • MySQL Join a Table if Exists Question

    - by swhitlow
    I have a DB which has a table called "config". This table could possibly have a "config_cstm" table that is related by the id to the config table. I was wondering - is there a way to dynamically check for the existence of this table in one simple select statement? In other words, something like: "select * from config (IF EXISTS config_cstm THEN LEFT OUTER JOIN config_cstm ON config.id = config_cstm.id_c" I know how I would go about checking for the existence of an existing table in PHP. I was wanting to do this all in one MySQL statement though. Any suggestions? Thanks!

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  • A stupid question in if block

    - by priyanka.sarkar_2
    I have a very stupid issue if (updateYN.ToUpper() != Constants.NO || updateYN.ToUpper() != Constants.N) { // execute code for any other updateYN } I am trying to perform a filteration that if the value of updateYN is not NO(Constants.NO) or N(Constants.N), then execute the statement. But the problem is that , irresptive of the values , the if block is executing. What wrong is there Thanks

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  • Joomla User Login Question

    - by user277127
    I would like to enable users of my existing web app to login to Joomla with the credentials already stored in my web app's database. By using the Joomla 1.5 authentication plugin system -- http://docs.joomla.org/Tutorial:Creating_an_Authentication_Plugin_for_Joomla_1.5 -- I would like to bypass the Joomla registration process and bypass creating users in the Joomla database altogether. My thought had been that I could simply populate a User object, which would be stored in the Session, and that this would replace the need to store a user in the Joomla database. After looking through the code surrounding user management in Joomla, it seems like any time you interact with the User object, the database is being queried. It therefore seems like my initial idea won't work. Is that right? It looks like, in order to achieve the effect I want, I will have to actually register a user from within the authentication plugin at the time they first login. This is not ideal, so before I go forward with it, I wanted to check with Joomla developers whether it is possible to do what I described above. Thanks in advance -- I am new to Joomla and greatly appreciate your help!

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  • Dumb RichTextBox question

    - by John Williams
    I need to get a list of tags in a text, make their contents bold, and remove them. Can't figure out how to make it. E.g. with the following input: foo [b]bar[/b] The result should be: foo bar I use the following code to extract the tags: Dim matches = Regex.Matches(OriginalRich.Text, String.Format("(\[{0}\])(.*?)(\[/{0}\])", tag), RegexOptions.IgnoreCase Or RegexOptions.Compiled) Any help would be appreciated.

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  • File permissions question

    - by Camran
    If I need a php-page to have access to upload images and move images from a folder on the server, what permissions would I set on the folder then? I know we have "Owner", "Group", and "Others". But what does the server (or the php-code itself) count as? Owner? Also, would I need to set the php-page with the upload script with some specific permissions to be able to upload the files? Is it execute permissions? Thanks

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  • Noob question about hibernate criteria

    - by Dimitri
    Hello, I have a class called User which has 2 properties : login/password. I am trying to authenticate a user in my application using hibernate criteria but my request doesn't work. [EDIT] The returned value is NULL. I have two users in my database for testing. Here is my code : @Override public User authenticate(String login, String password) throws NullPointerException { Session session = this.getSession(); User user = (User) session .createCriteria(User.class) .add( Restrictions.and( Property.forName("login").eq(login), Property.forName("password").eq(password) )).uniqueResult(); if (user == null){ throw new NullPointerException("User not found"); } return user; } Can someone tells me what is wrong with my code? Happy new Year 2011 !!

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  • Subversion Question - How to skip a revision...

    - by Albert
    So say I have the three latest revisions of an aspx file: 55,56, and 57. Revision 56 added a feature that I want to remove, but I also want to have the new features deployed in version 57. Is there any way I can merge version 55 with 57, leaving revision 56 out of the picture? If it matters, I'm using Tortoise SVN and Visual SVN, but I normally just use Tortoise. Thanks for any ideas.

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  • Data transformation question

    - by tkm
    I have data composed of a list of employers and a list of workers. Each has a many-to-many relationship with the other (so an employer can have many workers, and a worker can have many employers). The way the data is retrieved (and given to me) is as follows: each employer has an array of workers. In other words: employer n has: worker x, worker y etc. So I have a bunch of employer objects each containing an array of workers. I need to transform this data (and basically invert the relationship). I need to have a bunch of worker objects, each containing and array of employers. In other words: worker x has: employer n1, employer n2 etc. The context is hypothetical so please don't comment on why I need this or why I am doing it this way. I would really just like help on the algorithm to perform this transformation (there isn't that much data so I would prefer readability over complex optimizations which reduce complexity). (Oh and I am using Java, but pseudocode would be fine). Thanks!

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  • Help with 'simple' jQuery question

    - by user318573
    I am trying to get a simple effect working in jQuery, and only have a few hours of experience with it, so have a lot to learn. I managed to get this code working: <script type="text/javascript" > $(document).ready(function() { lastBlock = $("#a1"); maxWidth = 415; minWidth = 75; $("ul li a").hover(function() { $(lastBlock).animate({ width: minWidth + "px" }, { queue: false, duration: 600 }); $(this).animate({ width: maxWidth + "px" }, { queue: false, duration: 600 }); lastBlock = this; }); }); </script> Which gives me exactly what I want, a 6 pane horizontal accordion effect. Each pane however has a 75x75 image on the upper left, which is always visible no matter which pane is active (and it is this image that when hovered over caused the pane to open) - what I want to do is for the image on the selected 'pane', I want to drop the top margin down 10px, and then put it back to 0px when a new one is selected, i.e. so the selected panes image is always 10px lower than the other 5 images. I suspect this should be easy, but not quite grasping the syntax yet. Thanks.

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  • Oracle date / order by question

    - by user561793
    I want to select a date from oracle table formatted like select (to_char(req_date,'MM/YYYY')) but I also want to order the result set on this date format. I want them to be ordered like dates not strings. Like this 09/2009 10/2009 11/2009 12/2009 01/2010 02/2010 03/2010 04/2010 05/2010 06/2010 07/2010 08/2010 09/2010 10/2010 11/2010 12/2010 Not like 01/2010 02/2010 03/2010 04/2010 05/2010 06/2010 07/2010 08/2010 09/2009 09/2010 10/2009 10/2010 11/2009 11/2010 12/2009 12/2010 Any way to do this in sql? full sql is select (to_char(req_date,'MM/YYYY')) as monthYear,count(req_id) as count from REQUISITION_CURRENT t group by to_char(req_date,'MM/YYYY') Thanks

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  • question about timestamp with timezone in postgresql+java?

    - by ylazez
    hey guys i have a column in the database(postgresql) i want to insert the current time in GMT in this column when getting the current time and inserting it into the DB it's inserted in the server timezone GMT-5 although that time was in GMT+0 any ideas how to insert this time in the database in GMT timezone ?

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