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  • generating an objectForKey from an array

    - by Brian
    I'm having success when I use this code to get a string from an array of file names called "fileList": cell.timeBeganLabel.text = [[[self.fileList objectAtIndex:[indexPath row]] lastPathComponent] stringByDeletingPathExtension]; so I expected the same code to generate the same string as a key for me in this: NSDictionary *stats = [thisRecordingsStats objectForKey:[[[self.fileList objectAtIndex:[indexPath row]] lastPathComponent] stringByDeletingPathExtension]]; cell.durationLabel.text = [stats objectForKey:@"duration"]; or this: NSDictionary *stats = [thisRecordingsStats objectForKey:@"%@",[[[self.fileList objectAtIndex:[indexPath row]] lastPathComponent] stringByDeletingPathExtension]]; Both build without error, and the log shows my data is there: but I'm getting a blank UILabel. Have I not written the dynamic key generator correctly?

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  • creating a custom user interface in WPF

    - by CSharpInquisitor
    I have a SQL database holding a number of numeric and text values that get updated regularly. The exact number/type/names of these data points can change depending on the source of the database writes. I would like to create a user interface editor, where the user can add database points to the UI and arrange them and format them as they want. If a new point is added to the database they can right click on the UI and say "add this point" and choose from a list of database points. I'm looking for some pointers on where to start on creating this editor application, could something clever be done using XAML to dynamically create std WPF controls at runtime?

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  • How to efficiently render different things at different times in a game?

    - by Baqjohanson
    Sorry for the ambiguous title. What I am wondering is what is an efficient way to alternate rendering between lets say a main menu, options menu, and "in the game." The only two ways I've come up with so far are to have 1 render function, with code for each part (menu, ...) and a variable to control what gets drawn, or to have multiple render functions, and use a function pointer to point to the appropriate one, and then just call the function pointer. I always wonder how more professional games do it.

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  • Django: Converting an entire Model into a single dictionary

    - by LarrikJ
    Is there a good way in Django to convert an entire model to a dictionary? I mean, like this: class DictModel(models.Model): key = models.CharField(20) value = models.CharField(200) DictModel.objects.all().to_dict() ... with the result being a dictionary with the key/value pairs made up of records in the Model? Has anyone else seen this as being useful for them? Thanks. Update I just wanted to add is that my ultimate goal is to be able to do a simple variable lookup inside a Template. Something like: {{ DictModel.exampleKey }} With a result of DictModel.objects.get(key__exact=exampleKey).value Overall, though, you guys have really surprised me with how helpful allof your responses are, and how different the ways to approach it can be. Thanks a lot.

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  • Android-SQLite: How to Count specific value from Column?

    - by sanpatil
    I have two table (TABLE_EXAM,TABLE_RESULT). Here is value of my TABLE_RESULT. result_id exam_id question_id correct_answer 1 2 4 y 2 2 5 y 3 2 6 n 4 2 7 y I need to count how many correct_answer='y' where exam_id=2. I try following code but it return 0. public int calculateResult(int examId,String confirmAnswer) { int correctAnswer=0; try { SQLiteDatabase db=this.getWritableDatabase(); String selectQuery=("select count(correctAnswer) from result where exam_id ='" + examId + "' and correctAnswer ='" + 'y' +"'" ); // String selectQuery=("SELECT COUNT(*)FROM result WHERE exam_id ='" + examId + "' and correctAnswer ='" + confirmAnswer +"'" ); Cursor cursor = db.rawQuery(selectQuery, null); if(cursor.moveToLast()) { correctAnswer=cursor.getInt(3); } } catch(Exception e) { e.printStackTrace(); } return correctAnswer; } In variable confirm_answer i pass "y". Give me some hint or reference. Any help is appreciated. Thanks in Advance

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  • read variables from file

    - by TonyVipros
    Hi, I'm trying to write a shell script to backup websites, I've got it to go through each directory in vhosts and create a new directory vhosts/{siteurl}/private/backups/ and gzip up the site into there. However, I also want it to read a file from private that will contain database name, user and password. So I can then use these to perform a mysqldump to private/backups/. The problem is that I've never written a shell script before so I've go no idea how to read variable data into my script, or how I should format the file to be read. Hope that's enough information.

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  • Good Design for Initialization of Static Array

    - by jplot
    I have a question regarding good design in C++. I have a class A, and all objects of this class use an integer array of constant values (they should share the same array, as their values are constant). The array needs to be computed (just once) before any object A. I thought about having another class B which contains the integer array as a static member, an init() method which would fill this array according to some formula and a static boolean flag initialized (if this variable if true then the init() method would do nothing), but I'm not sure this is the best way to solve my design issue. So my question is, what would be a good design/way to accomplish this ? Thanks in advance.

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  • Use variables entered in login page usable in multiple pages?

    - by deception1
    I have a Login page that captures User input like this. MD5calc ss = new DBCon.MD5calc(); string gs = ss.CalculateMD5Hash(password.Password); int unitID = Convert.ToInt32(Unit_ID.Text); logBO.UnitID = unitID; logBO.UserID = User_name.Text; logBO.UserPass = gs; How would i make them assignable to any other page i created.My Common sense says that creating a static class would be enough,but will it?If i do create a static class where would i put it and how would i call it?I actually need those variable to use in my Sql Stored procedures.

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  • How can I get class, property, and method data from files without executing their code, similar to R

    - by Chris
    I have a bunch of PHP files with classes, in them (although I can't be 100% sure that they won't have code outside of classes in them too), and I need to parse these files to get information about the classes, such as the names of the classes, the methods, the properties, whether they are private/public/static, etc. I looked at PHP's reflection classes and this is very close to what I want but the reflection doesn't seem to use external files and it appears to need to define the classes first. I need to make sure that none of the code is executed and I will be editing the files so I can't guarantee that they will even be error-free. Any suggestions? Thanks.

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  • Codeigniter: Using data in a controller

    - by Kevin Brown
    I'm new to php and CI, and I'm having some trouble in my controller. I feel that I'm doing this the wrong way, and it could be easier, I just don't know the syntax: $data['members'] = $this->home_model->getUser($id); $credit = $this->home_model->getCredit($id); if ($credit == '0'){stuff...} So I'm getting the user's data that has their the same information as "getCredit" does, but I don't know how to get the single variable that I need for my if statement... How can I just use the "getUser" function so that I'm not pulling redundant information?

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  • Will the program installed in a folder function properly if I remove the write permission in linux? [on hold]

    - by Kevin Powell
    I have a user account on a cluster( a server), and can only install program like python on the home folder. In case I might accidentally delete the bin, lib, share,include folders coming with the installation of python on the home folder. I change the permissions of the above folder like this chmod -w folder but I am worried when the program need to write/delete some files of the folders, it might not function because the removal of write permission. Am I right? or I the run, including write files in the folder, of a program have permissions different than the permission of user. BTW, is there a way to hide the folders without changing the names?

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  • SQL most popular

    - by Brae
    I have a mysql table with items in relation to their order. CREATE DATABASE IF NOT EXISTS `sqltest`; USE `sqltest`; DROP TABLE IF EXISTS `testdata`; CREATE TABLE `testdata` ( `orderID` varchar(10) DEFAULT NULL, `itemID` varchar(10) DEFAULT NULL, `qtyOrdered` int(10) DEFAULT NULL, `sellingPrice` decimal(10,2) DEFAULT NULL ) INSERT INTO `testdata`(`orderID`,`itemID`,`qtyOrdered`,`sellingPrice`) values ('1','a',1,'7.00'),('1','b',2,'8.00'),('1','c',3,'3.00'),('2','a',1,'7.00'),('2','c',4,'3.00'); Intended Result: A = (1+1)2 B = 2 C = (2+4)6 <- most popular How do I add up all the qty's for each item and result the highest one? It should be fairly strait forward but I'm new to SQL and I can't work this one out :S Solution needs to be mysql and or php. I guess there needs to be some sort of temporary tally variable for each item ID, but that seems like it could get messy with too many items.

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  • scrollTop issue on constant moving div

    - by joe
    I have a FLASH object that I mouse over which in turn calls the following function to scroll a div. It works but due to the constant high speed scrolling it would throw up NULLS. This in turn caused IE to open a new page through my FLASH ActionScript 2.0 I found that by creating the SC variable and throwing in the condition "if it exists" keeps FLASH from causing IE to open a new page. However, it still creates an error behind the scenes of "Object Required". Although my application works I do not want load up memory with errors. Any thoughts? var SC; function pP(PT){ SC=document.getElementById('P'+PT).offsetTop; if(SC){document.getElementById('CBOX').scrollTop=SC;} }

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  • Declaring two classes that contain instance variables of each others' types.

    - by Benji XVI
    Let’s say you wish to have two classes like so, each declaring an instance variable that is of the other’s class. @interface A : NSObject { B *something; } @end @interface B : NSObject { A *something; } @end It seems to be impossible to declare these classes with these instance variables. In order for A to include an IV of class B, B must already be compiled, and so its @interface must come before A’s. But A’s must be put before B’s for the same reason. Putting the two class declarations in separate files, and #import-ing each other’s .h doesn’t work either, for obvious reasons. So, what is the solution? Or is this either (1) impossible or (2) indicative of a bad design anyway?

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  • Problem building relationships between models

    - by Brian Roisentul
    Until now, I've been using acts_as_taggable_on plugin for tagging announcements. That plugin creates the following tables: taggings: relates tags and announcements table(for the tagged item, it has a field called taggable_id, which I rename to "announcement_id" for what I'll explain below). tags: has the tag ids and names. The other day, I discovered that I had no way of getting the announcements tagged with a certain tag, but doing Announcement.tagged_with(tag_name), and I don't want to search by name, but for id. So, as I'm using almost nothing of the functionality in that plugin, I decided to create the models for taggings and tags tables, to accomplish this: Announcement.tags. The models' relationships look as following: class Tagging < ActiveRecord::Base belongs_to :announcement belongs_to :tag end class Tag < ActiveRecord::Base has_many :announcements, :through => :taggings end class Announcement < ActiveRecord::Base has_many :tags, :through => :taggings Why can't I execute the command Announcement.tags? Because when I try, I get undefined method `tags'

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  • mod_rewrite: no ? and # in REQUEST_URI

    - by tshabala
    Hello. What I'm trying to do: have pretty URLs in the format 'http://domain.tld/one/two/three', that get handled by a PHP script (index.php) by looking at the REQUEST_URI server variable. In my example, the REQUEST_URI would be '/one/two/three'. (Btw., is this a good idea in general?) I'm using Apache's mod_rewrite to achieve that. Here's the RewriteRule I use in my .htaccess: RewriteRule ^/?([a-zA-Z/]+)/?$ /index.php [NC,L] This works really well thus far; it forwards every REQUEST_URI that consists of a-z, A-Z or a '/' to /index.php, where it is processed. Only drawback: '?' (question marks) and '#' (hash keys) seem to still be allowed in the REQUEST_URI, maybe even more characters that I've yet to find. Is it possible to restrict those via my .htaccess and an adequate addition to the RewriteRule? Thanks!

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  • Using these 2 build options in Visual Studio

    - by dotnetdev
    When I debug a project and there is an error in my code (e.g. a method returns something and when I consume that method, I don't put the returned data into a variable) the popup asking me to run the last successful build comes up. How exactly do I configure this? Also, in what scenario does the Visual Studio build order come in handy? I once built a solution, and it couldn't build one project because a dependent project was not built beforehand. I guess this one possible scenario? Any others? Thanks

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  • Common strategies to deal with rounding errors in currency-intensive soft?

    - by Max
    What is your advice on: compensation of accumulated error in bulk math operations on collections of Money objects. How is this implemented in your production code? (things like variable rounding, etc...) theory behind rounding in accountancy. any literature on topic. I currently read Fowler. He mentions Money type, but says nothing on strategies. Older posts on money-rounding (here, and here) do not provide a details and formality I need. Thanks for help.

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  • for (Object object : list) [java] construction

    - by EugeneP
    My question, is, whether the sequence of elements picked from a list will always be the same, is this construction behaviour is deterministic for java "List"s - descendants of java.util.List 2) question, if I use for(Object o: list) construction and inside the loop's body increment a variable, will it be the index of list's elements? So, how it goes through list's elements, from 0 to size()-1 or chaotically? List.get(i) will always return this element? 3) question ( I suppose for the 2-nd question the answer will be negative, so:) for (int i=0; i < list.size(); i++) { } is the best way if I need to save the index of an element and later get it back from a list by its id?

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  • How to tell the difference between a VBscript is run from command line or by clicking it in a window?

    - by robbie
    All I want to do is differentiate between the program being run by the command line or by clicking the test.vbs file in a window. If you run the script by typing C:\testFolder\test.vbs in a command prompt, then I want the program to run differently than if you double clicked test.vbs in the testFolder. Is there some system variable that I can use to differentiate between the two scenarios? I first attempted to use WScript.Fullname to determine if the pathname ended in cscript or wscript. But that didn't work so well. Any ideas are greatly appreciated.

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  • $_SERVER['HTTP_HOST'] not set

    - by yes123
    Hi guys, I am getting lot of traffic to my php pages but without the variable $_SERVER['HTTP_HOST'] setted. This traffic is like 1 hit per second. I don't know what it could be, but for reducing server load i am doing this at the top of every php pages: if (!isset($_SERVER['HTTP_HOST'])) exit; Do u know what could cause this? Is it safe to exit whenever http_host is not setted? Can a normal user visit my pages without setting http_host? PHP version: 5.2.0-8, Apache: 2.2.3 Thanks

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  • How to set up a specific registration on Database

    - by ymorenz
    I'm creating a database so I can access names of people from a university. But I would like to create a registration ID for each person like 1012607, of which the first 2 numbers would be the year (11 for 2011) and the third digit would be the semester they registered (1 in the beginning of the year and 2 in the end of the year). The other 4 digits would be incremental. I don't know how to code a prefixed number in MySQL that can change only the last 4 digits and after a year change the first 2 digits every time you have a new registration. Can someone please help me?

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  • Why is this simple hello world code segfaulting?

    - by socks
    Excuse the beginner level of this question. I have the following simple code, but it does not seem to run. It gets a segmentation fault. If I replace the pointer with a simple call to the actual variable, it runs fine... I'm not sure why. struct node { int x; struct node *left; struct node *right; }; int main() { struct node *root; root->x = 42; printf("Hello world. %d", root->x); getchar(); return 0; } What is wrong with this code?

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  • Why isn't this message subject encoded properly? (php mail)

    - by Camran
    I use this code to send an email: $headers="MIME-Version: 1.0"."\n"; $headers.="Content-type: text/plain; charset=UTF-8"."\n"; $headers.="From: $name <$email>"."\n"; mail($to, '=?UTF-8?B?'.base64_encode($subject).'?=', $text, $headers, '[email protected]'); If I use special characters Å Ä Ö from the swedish alphabet, they are not encoded properly, so they turn up like ö for ö. However, this doesn't happen if I change the $to variable to a gmail account email, then they are shown correctly. Anybody got any idea? Thanks UPDATE: When I echo $name, the name is displayed correctly, in utf8, with all special chars nicely shown.

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  • Slide Effect happening too many times

    - by Abs
    Hello all, I call this functions on onmouseover and onmouseout for several divs. //Takes effect on divs with id, 62,63,64,65... function slide_it(id){ $('#options_'+id).slideToggle('slow'); } The problem is that if I move my mouse over and then mouse out, then again, mouse over and then mouse out. If I do this several times, the slide effect happens the same number of times I moved my mouse over and out of the div, as expected. But I can't figure out how I can do this once? I can set a variable, but I have several divs that this function is used by and I can't think of a simple way of doing this rather than storing things into an array, but this is messy! I really appreciate any help on this that is simple to implement! Thanks all for any help

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