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• Geeting internal Oracle connection from Hibernate in JBoss

  - by espressoshot

  Hello, I need to set an application context through Hibernate. I found there is a method setApplicationContext on oracle.jdbc.internal.OracleConnection. I wrote a test, in which I was getting the Oracle connection from the Hibernate session and it worked fine. However, when I moved the code to my application running under JBoss where connections are obtained from the pool the solution won't work. The error is: $Proxy51 cannot be cast to oracle.jdbc.internal.OracleConnection. (1) How can I get the internal connection in that environment? (2) Is there a better way to set an application context through Hibernate (docs don't say anything about it). Thanks so much. Kris

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• Two way binding when setter is overriden

  - by Nicolas Goy

  I have an NSTextField bound to some object "zoom" property. In this object's class implementation, I have the following - (void)setZoom:(CGFloat)zoom { _zoom = MAX(0, MIN(10, zoom)); } If I write "-5" in the textfield, setZoom: will be called with "-5" as argument and _zoom will be set to 0. Then problem is that the textfield is not updating itself and it shows "-5" instead of re-reading the property value it has just set. If I do myObject.zoom = -5; in code, the text field will display 0 correctly. I tried to wrap _zoom =... inside willChangeValueForKey/didChangeValueForKey calls but it didn't change anything.

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• PHP MYSQL query result "RANKING"

  - by fkessler

  Hi, I need to get a list of users Ranking by points and from my command line (MySQL) is was able to generate the necessary code: SET @rank=0; SELECT rank, iduser, pontos FROM ( SELECT @rank:=@rank+1 AS rank, SUM(points.points) AS pontos, points.iduser, users.name, users.idade FROM points INNER JOIN users ON (points.iduser = users.id) WHERE (users.idade >= %s) AND (users.idade <= %s) GROUP BY points.iduser ORDER BY pontos DESC) AS totals WHERE iduser = %s The problem is that I need this to run on AMFPHP and I´ve tested it in a test PHP file and seems that I can´t use the SET and SELECT in the same "mysql_query". I´ve looked and some used to mysql_query to do this (I´ve tested it and it works), but can I trust this to be effective and error free? Does it work like in MySQL transactions or setting the @rank in a seperated query may cause unexpected results?

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• ncurses - expect: sleep executes at wrong time

  - by rahul

  I have some ncurses apps that I need to automate to test repeatedly. I am placing the "sleep" command between "send" commands. However, what i see is that all the sleep's are executed in the beginning before the screen loads. expect concatenates the sends (I see that at the screen bottom during sleep) then issues them together. I have tried sending all keys with "send -s" or "send -h". That marginally helps. I've replaced "-f" on line 1 with "-b" - again a tiny difference. Why isn't "sleep" pausing at the right time. Incidentally, my programs have a getc() loop, so i can't use "expect" command. I tried that too. #!/usr/bin/expect -f spawn ruby testsplit.rb #expect set send_human {3 3 5 5 7} set send_slow {10 1} exp_send -s -- "--" exec sleep 3 send -s "+" send -s "=" sleep 1 send -h -- "-" send -h -- "-" sleep 1 send -h -- "v" interact

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• Is this query safe in SQL Server?

  - by xaw

  I have this SQL update query: UPDATE table1 SET table1.field1 = 1 WHERE table1.id NOT IN (SELECT table2.table1id FROM table2); Other portions of the application can add records to table2 which use the field table1id to reference table1. The goal here is to remove records from table1 which aren't referenced by table2. Does SQL Server automatically lock table2 with this kind of query so that a new record can't be added to table2 while executing this query? I've also considered: UPDATE table1 SET field1 = 1 WHERE 0 = (SELECT COUNT(*) FROM table2 WHERE table1.id = table2.table1id); Which seems possibly safer, but much slower (because a SELECT would be called on each row of table1 instead of just one select for the NOT IN)

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• How to use Mysql variables with Hibernate ?

  - by Jerome C.

  Hello, I need to use a native sql query in Hibernate with use of variable. But hibernate throws an error saying: Space is not allowed after parameter prefix So there is a conflict with the := mysql variable assignment and hibernate variable assignment. Here is my sql query: SET @rank:=0; UPDATE Rank SET rank_Level=@rank:=@rank+1 ORDER BY Level; I can't use a stored procedure because my sql query is dynamically generated ('Level' can be 'int' or 'force'...) How can I do this ? thanks

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• Custom deleters for std::shared_ptrs

  - by Kristian D'Amato

  Is it possible to use a custom deleter after creating a std::shared_ptr without using new? My problem is that object creation is handled by a factory class and its constructors & destructors are protected, which gives a compile error, and I don't want to use new because of its drawbacks. To elaborate: I prefer to create shared pointers like this, which doesn't let you set a custom deleter (I think): auto sp1 = make_shared<Song>(L"The Beatles", L"Im Happy Just to Dance With You"); Or I can create them like this, which does let met set a deleter through an argument: auto sp2(new Song, MyDeleterFunc); But the second one uses new, which AFAIK isn't as efficient as the top sort of allocation. Maybe this is clearer: is it possible to get the benefits of make_shared<> as well as a custom deleter? Would that mean having to write an allocator?

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• Parsing String into multiple variable length String (C#)

  - by Nassign

  I am currently trying to convert a VB6 program into C#. There was extensive use of string splitting into structure. For example, Dim Sample AS String Sample = "John Doe New York Test Comment" Public Type Struct1 Name As String * 15 Address As String * 10 Comment As String * 20 End Type Dim dataStruct As Struct1 Set dataStruct = Sample When the dataStruct is set, it will automatically split value into the 3 structure member. Is there a special function to do this in C#. The only way I know how to do this is thru Attributes/Annotation describing the length and start position of string. Any other suggestion?

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• Returning multiple datasets from a stored proc in VB

  - by Ryan Stephens

  I have an encrypted SQL Server stored proc that I run with (or the vb .net equivalent code of): declare @p4 nvarchar(100) set @p4=NULL declare @p5 bigint set @p5=NULL exec AA_PAY_BACS_EXPORT_RETRIEVE_S @PS_UserId=N'ADMN', @PS_Department=N'', @PS_PayFrequency=2, @PS_ErrorDescription=@p4 output select @p4, @p5 this returns 2 datasets and the output parameters for the results, the datasets are made up of various table joins etc, one holds the header record and one the detail records. I need to get the 2 datasets into a structure in VB .net (e.g. linq, sqldatareader, typed datasets) so that I can code with them, I don't know what tables any of this comes from and there are alot of them Whooopeee!!! I came close using Linq to SQL and IMultipleResults but got frustrated when I had to recode it every time I made a change to the designer file. My feelings are that there must be a simple way to do this, any ideas?

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• Drupal Navigation Conundrum

  - by Vecta

  I'm attempting to set up navigation withing a Drupal site and am having a bit of trouble. I'm trying to have a series of pages that each have a set number of sub-pages. These pages will need to link to one another. All pages will contain similar content. For instance: Page 1 will have sub-pages a, b, c, d, e, and f all with content related to the topic of page 1 Page 2 will have sub-pages a, b, c, d, e, and f with content related to the topic of page 2 I'd like these links to appear in a horizontal nav bar on each page. Is it possible to accomplish this using the book module? I've also read some information about the taxonomy menu module that sounds promising, but I'm not really sure how that would work. What route should I look into? Thanks for any input!

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• Rails - Why is my custom validation being triggered for only a build command.

  - by adam

  I have a sentence and correction model with a has_one and belongs_to relationship respectively. For some reason when I do def create @sentence = Sentence.find(params[:sentence_id]) @correction = @sentence.build_correction(params[:correction]) a custom validation I wrote for Correction is being called at the build_correction point. the validation is below class Correction < ActiveRecord::Base attr_accessible :text, :sentence_id, :user_id belongs_to :sentence belongs_to :user validate :correction_is_different_than_sentence def correction_is_different_than_sentence errors.add(:text, "can't be the same as the original sentence.") if (text == self.sentence.text) end the problem is for some reason on validation the correction object doesn't have the sentence id set (despite I used the build_correction method) and so it complains "you have nil object .... while executing nil.text" in the if clause in the validation above. So my question is why is the validation occuring for a build command, i thought it only triggers on a create or update. And why isnt the sentence_id getting set?

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• PowerShell: How to add XmlElement to a non-root element

  - by Ariel

  I'm having trouble adding an XmlElement to a non-root element in PowerShell. Basically, given this xml: <clubs> <club name="boca" position="1"> <field>bombonera</field> <field>bombonerita</field> </club> <club name="racing" position="19"> <field>cilindro</field> </club> </clubs> I create an element, $new = $clubs.CreateElement("Barracas") When I try to add this element to a non-root node i.e. $clubs.clubs.club += $new I get Cannot set "club" because only strings can be used as values to set XmlNode properties. What am I missing? Thanks in advance.

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• Override l() function in Drupal

  - by Marco

  I'm currently working on a Drupal site (6.*), which when in production mode will be accessed through some kind of http proxy, which means I will have to rewrite all the links for my custom theme if the $_SERVER['HTTP_X_FORWARDED_SERVER'] variable is set to the domain people will access the site from. The site has a lot of internal linking, mostly through Views. My thought is that the easiest way to solve this would be to hook into the url() and/or the l() functions and post process the url before returning it if HTTP_X_FORWARDED_SERVER is set. My problem is that I can't figure out how to hook into these functions, or if it's even possible without touching the core, has anyone had to do this? How did you solve it?

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• Treeview Slow in IE?!?!

  - by Mike

  I have a treeview with around 200 records that needs to be fully expanded at all times (so no loading on demand). It is inside of an update panel with the updatemode set to conditional. There are other update panels on the page as well that are set to conditional. Depending on user actions the tree may need to be rebuilt by calling databind and updating the updatepanel. Everything works fine in firefox, longest postback about 2 seconds. With IE I have to wait up to 30 seconds sometimes and the action may have nothing to do with the tree just changing a dropdown in its own updatepanel takes forever. I have considered the size of viewstate and just raw HTML generated may be causing the delay but wouldn't that effect both browsers? Anyone have anyideas what is making it so slow in IE??? Thanks!

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• viewstae and textbox in asp.net

  - by jammkie same

  How a textbox is able to persist changes (eg text) even after enableviewstate property is set to false in ASP.NET

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• MS SQL Server Job with precise timing

  - by TcKs

  Hi, I have a DB with game data (map, players, etc...) and I have a game core mechanics writen in T-SQL stored procedure. I need process game loop (via the stored procedure) every "X" seconds. I tried used the SQL Job, but when I set the interval to seconds, the SQL server stops responding. If I set the interval greater than one minute, all was ok. I need game loop precise in time, e.g. the game loop will run only once and will be executed every "X" precisely (tolerance should be less than one second). Can I do it with MS SQL Server capabilities? Or should I create a windows service which will repeatly execute game loop procedure? Or should I go another way? Thanks! EDIT: The game loop stored procedure takes less than the interval.

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• Rendering problem with UITableview

  - by Spider-Paddy

  I have a very strange problem with a UITableview within a navigation controller on the iPhone simulator. Of the cells displayed, only some are correctly rendered. They are all supposed to look the same but the majority are missing the accessory I've set, scrolling the view changes which cell has the accessory so I suspect it's some sort of cell caching happening, although the contents are correct for each cell. I also set an image as the background and that was also only displaying sporadically but I fixed that by changing cell.backgroundView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"yellow-bar_short.png"]]; (which also only rendered a random cell with the background) to cell.backgroundColor = [[UIColor alloc] initWithPatternImage:[UIImage imageNamed:@"yellow-bar_short.png"]]; I now need to fix the problem with the accessory only showing on a random cell. I tried moving the code from cellForRowAtIndex to willDisplayCell but it made no difference. I put in a log command to confirm that it is running through each frame. Basically it's a table view (UITableViewCellStyleSubtitle) that gets its info from a server & is then updated by a delegate method calling reload. Code is: -(void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath { NSLog(@"%@", [NSString stringWithFormat:@"Setting colours for cell %i", indexPath.row]); // Set cell background // cell.backgroundView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"yellow-bar_short.png"]]; cell.backgroundColor = [[UIColor alloc] initWithPatternImage:[UIImage imageNamed:@"yellow-bar_short.png"]]; cell.textLabel.backgroundColor = [UIColor clearColor]; cell.detailTextLabel.backgroundColor = [UIColor clearColor]; // detailTableViewAccessory is a view containing an imageview in this view's nib // i.e. nib <- view <- imageview <- image cell.accessoryView = detailTableViewAccessory; } // Called by data fetching object when done -(void)listDataTransferComplete:(ArticleListParser *)articleListParserObject { NSLog(@"Data parsed, reloading detail table"); self.currentTotalResultPages = (((articleListParserObject.currentArticleCount - 1) / 10) + 1); self.detailTableDataSource = [articleListParserObject.returnedArray copy]; // make a local copy of the returned array // Render table again with returned array data (neither of these 2 fixed it) [self.detailTableView performSelectorOnMainThread:@selector(reloadData) withObject:nil waitUntilDone:NO]; // [self.detailTableView reloadData]; // Re-enable necessary buttons (including table cells) letUserSelectRow = TRUE; [btnByName setEnabled:TRUE]; [btnByPrice setEnabled:TRUE]; // Remove please wait message NSLog(@"Removing please wait view"); [pleaseWaitViewControllerObject.view removeFromSuperview]; } I only included code that I thought was relevant, can supply more if needed. I can't test it on an iPhone yet so I don't know if it's maybe just a simulator anomaly or a bug in my code. I've always gotten good feedback from questions, any ideas?

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• WCF returning custom types

  - by Gena Verdel

  Hi. I'm a newbie to WCF, trying to perform relatively simple task. I'm trying to return list of objects read from the database but cannot overcome some really annoying exceptions. The question is very simple? What's wrong with the picture? [ServiceContract] public interface IDBService { [OperationContract] string Ping(string name); [OperationContract] InitBDResult InitBD(); } public InitBDResult InitBD() { _dc = new CentralDC(); InitBDResult result = new InitBDResult(); result.ord = _dc.Orders.First(); return result; } [DataContract] public class InitBDResult { //[DataMember] //public List<Order> Orders { get; set; } [DataMember] public Order ord { get; set; } }

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• displaying a colored 2d array in matplotlib in Python

  - by user248237

  I'd like to plot a 2-d matrix from numpy as a colored matrix in Matplotlib. I have the following 9-by-9 array: my_array = diag(ones(9)) # plot the array pcolor(my_array) I'd like to set the first three elements of the diagonal to be a certain color, the next three to be a different color, and the last three a different color. I'd like to specify the color by a hex code string, like "#FF8C00". How can I do this? Also, how can I set the color of 0-valued elements for pcolor?

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• How do I make a GUI that behaves like this?

  - by Karl Knechtel

  This is difficult to explain without illustration, so - behold, an illustration, cobbled together from screenshots of a few hello-world examples and a lot of Paint work: I have started out using Windows Forms on .NET (via IronPython, but that shouldn't be important), and haven't been able to figure out very much. GUI libraries in general are very intimidating, simply because every class has so many possible attributes. Documentation is good at explaining what everything does, but not so good at helping you figure out what you need. I will be assembling the GUI dynamically, but I'm not expecting that to be the hard part. The sticking points for me right now are: How do I get text labels to size themselves automatically to the width of the contained text (so that the text doesn't clip, and I also don't reserve unnecessary space for them when resizing the window)? How do I make the vertical scrollbar always appear? Setting the VScroll property (why is this protected when AutoScroll is public, BTW?) doesn't seem to do anything. How come the horizontal scrollbar is not added by AutoScroll when contents are laid out vertically (via Dock = DockStyle.Top)? I can use a minimum size for panels to prevent the label and corresponding control from overlapping when the window is shrunk horizontally, but then the scrollbar doesn't appear and the control is inaccessible. How can I put limits on window resizing (e.g. set a minimum width) without disabling it completely? (Just set minimum/maximum sizes for the Form?) Related to that, is there any way to set minimum/maximum widths or heights without setting a minimum/maximum size (i.e. can I constrain the size in only one dimension)? Is there a built-in control suitable for hex editing or am I going to have to build something myself? ... And should I be using something else (perhaps something more capable?) I've heard WPF mentioned, but I understand that this involves XML and I really want to build a GUI from XML - I already have data in an object graph, and doing some kind of weird XML pseudo-serialization (in Python, no less!) in order to create a GUI seems incredibly roundabout.

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• How to hide an element after $compile?

  - by Miron

  How to hide directive generated html after inserting it to body? Directive has "replace" set to trueThere is a directive: .directive('location', function () { return { restrict : 'A', scope : {}, replace : true, templateUrl: 'common/components/location/location.html', link : function (scope, element, attr) {……} } }); So it is used in another directive: var scope = $rootScope.$new(true); var directive = $compile('<div location></div>')(scope); $document.find('body').append(directive); directive.hide(); - not working How to hide directive generated html after inserting it to body? Directive has "replace" set to true

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• Displaying objects based on if a user is logged in or not

  - by MaxMackie

  I'm learning about PHP sessions for user authentication on my website. I know how to restrict the viewing of a complete page using sessions (simply check if the 'uid' session variable is set and if it is, show content, if not redirect to an error). However I'm trying to figure out the best way to selectively show and hide different objects (div, text, images) based on if a user is logged in or not. Is it as simple as checking for the 'uid' session variable and displaying based on if it set or not? Is there a more efficient way of doing this id there are a lot of conditional elements on a page?

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• mysql reference result from subquery

  - by iamrohitbanga

  this is what i am doing update t1 set x=a,y=b where a and b are obtained from (select query here) i know the select query the select query returns multiple results which are the same when i use group by or distinct query execution slows down considerably a and b are forward references so mysql reports an error i want to set a equal to the value obtained in the first row and b equal to the value obtained in the first row for the respective columns, to avoid group by. i don't know how to refer to the first result from the select query. how can i achieve all this?

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• Fastest Way to generate 1,000,000+ random numbers in python

  - by Sandro

  I am currently writing an app in python that needs to generate large amount of random numbers, FAST. Currently I have a scheme going that uses numpy to generate all of the numbers in a giant batch (about ~500,000 at a time). While this seems to be faster than python's implementation. I still need it to go faster. Any ideas? I'm open to writing it in C and embedding it in the program or doing w/e it takes. Constraints on the random numbers: A Set of numbers 7 numbers that can all have different bounds: eg: [0-X1, 0-X2, 0-X3, 0-X4, 0-X5, 0-X6, 0-X7] Currently I am generating a list of 7 numbers with random values from [0-1) then multiplying by [X1..X7] A Set of 13 numbers that all add up to 1 Currently just generating 13 numbers then dividing by their sum Any ideas? Would pre calculating these numbers and storing them in a file make this faster? Thanks!

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• .NET DefaultValue attribute

  - by Aaron

  I've heard people say a few different things about the DefaultValue attribute including: "It sets the value of the property before anything else uses it." "It doesn't work for autoproperties." "It's only for decoration. You must manually set actual default values." Which (if any) is right? Does DefaultValue actually set default values? Are there cases where it doesn't work? Is it best just not to use it?

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