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  • How to avoid using duplicate savepoint names in nested transactions in nested stored procs?

    - by Gary McGill
    I have a pattern that I almost always follow, where if I need to wrap up an operation in a transaction, I do this: BEGIN TRANSACTION SAVE TRANSACTION TX -- Stuff IF @error <> 0 ROLLBACK TRANSACTION TX COMMIT TRANSACTION That's served me well enough in the past, but after years of using this pattern (and copy-pasting the above code), I've suddenly discovered a flaw which comes as a complete shock. Quite often, I'll have a stored procedure calling other stored procedures, all of which use this same pattern. What I've discovered (to my cost) is that because I'm using the same savepoint name everywhere, I can get into a situation where my outer transaction is partially committed - precisely the opposite of the atomicity that I'm trying to achieve. I've put together an example that exhibits the problem. This is a single batch (no nested stored procs), and so it looks a little odd in that you probably wouldn't use the same savepoint name twice in the same batch, but my real-world scenario would be too confusing to post. CREATE TABLE Test (test INTEGER NOT NULL) BEGIN TRAN SAVE TRAN TX BEGIN TRAN SAVE TRAN TX INSERT INTO Test(test) VALUES (1) COMMIT TRAN TX BEGIN TRAN SAVE TRAN TX INSERT INTO Test(test) VALUES (2) COMMIT TRAN TX DELETE FROM Test ROLLBACK TRAN TX COMMIT TRAN TX SELECT * FROM Test DROP TABLE Test When I execute this, it lists one record, with value "1". In other words, even though I rolled back my outer transaction, a record was added to the table. What's happening is that the ROLLBACK TRANSACTION TX at the outer level is rolling back as far as the last SAVE TRANSACTION TX at the inner level. Now that I write this all out, I can see the logic behind it: the server is looking back through the log file, treating it as a linear stream of transactions; it doesn't understand the nesting/hierarchy implied by either the nesting of the transactions (or, in my real-world scenario, by the calls to other stored procedures). So, clearly, I need to start using unique savepoint names instead of blindly using "TX" everywhere. But - and this is where I finally get to the point - is there a way to do this in a copy-pastable way so that I can still use the same code everywhere? Can I auto-generate the savepoint name on the fly somehow? Is there a convention or best-practice for doing this sort of thing? It's not exactly hard to come up with a unique name every time you start a transaction (could base it off the SP name, or somesuch), but I do worry that eventually there would be a conflict - and you wouldn't know about it because rather than causing an error it just silently destroys your data... :-(

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  • Getting null value after adding objects to customClass

    - by Brian Stacks
    Ok here's my code first viewController.h @interface ViewController : UIViewController<UICollectionViewDataSource,UICollectionViewDelegate> { NSMutableArray *twitterObjects; } @property (strong, nonatomic) IBOutlet UICollectionView *myCollectionView; Here is my viewController.m // // ViewController.m // MDF2p2 // // Created by Brian Stacks on 6/5/14. // Copyright (c) 2014 Brian Stacks. All rights reserved. // #import "ViewController.h" // add accounts framework to code #import <Accounts/Accounts.h> // add social frameworks #import <Social/Social.h> #import "TwitterCustomObject.h" #import "CustomCell.h" #import "DetailViewController.h" @interface ViewController () @end @implementation ViewController -(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender { //CustomCell * cell = (CustomCell*)sender; //NSIndexPath *indexPath = [_myCollectionView indexPathForCell:cell]; // setting an id for view controller DetailViewController *detailViewcontroller = segue.destinationViewController; //TwitterCustomObject *newCustomClass = [twitterObjects objectAtIndex:indexPath.row]; if (detailViewcontroller != nil) { // setting the custom customClass object //detailViewcontroller.myNewCurrentClass = newCustomClass; } } - (void)viewDidLoad { twitterObjects = [[NSMutableArray alloc]init]; [super viewDidLoad]; [self twitterAPIcall]; // Do any additional setup after loading the view, typically from a nib. } - (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section { return 100; } - (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath { //UICollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"myCell" forIndexPath:indexPath]; // initiate celli CustomCell * cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"myCell" forIndexPath:indexPath]; // add objects to cell if (cell != nil) { //TwitterCustomObject *newCustomClass = [twitterObjects objectAtIndex:indexPath.row]; //[cell refreshCell:newCustomClass.userName userImage:newCustomClass.userImage]; [cell refreshCell:@"Brian" userImage:[UIImage imageNamed:@"love.jpg"]]; } return cell; } -(void)twitterAPIcall { //create an instance of the account store from account frameworks ACAccountStore *accountStore = [[ACAccountStore alloc]init]; // make sure we have a valid object if (accountStore != nil) { // get the account type ex: Twitter, FAcebook info ACAccountType *accountType = [accountStore accountTypeWithAccountTypeIdentifier:ACAccountTypeIdentifierTwitter]; // make sure we have a valid object if (accountType != nil) { // give access to the account iformation [accountStore requestAccessToAccountsWithType:accountType options:nil completion:^(BOOL granted, NSError *error) { if (granted) { //^^^success user gave access to account information // get the info of accounts NSArray *twitterAccounts = [accountStore accountsWithAccountType:accountType]; // make sure we have a valid object if (twitterAccounts != nil) { //NSLog(@"Accounts: %@",twitterAccounts); // get the current account information ACAccount *currentAccount = [twitterAccounts objectAtIndex:0]; // make sure we have a valid object if (currentAccount != nil) { //string from twitter api NSString *requestString = @"https://api.twitter.com/1.1/friends/list.json"; // request the data from the request screen call SLRequest *myRequest = [SLRequest requestForServiceType:SLServiceTypeTwitter requestMethod:SLRequestMethodGET URL:[NSURL URLWithString:requestString] parameters:nil]; // must authenticate request [myRequest setAccount:currentAccount]; // perform the request named myRequest [myRequest performRequestWithHandler:^(NSData *responseData, NSHTTPURLResponse *urlResponse, NSError *error) { // check to make sure there are no errors and we have a good http:request of 200 if ((error == nil) && ([urlResponse statusCode] == 200)) { // make array of dictionaries from the twitter api data using NSJSONSerialization NSArray *twitterFeed = [NSJSONSerialization JSONObjectWithData:responseData options:0 error:nil]; NSMutableArray *nameArray = [twitterFeed valueForKeyPath:@"users"]; // for loop that loops through all the post for (NSInteger i =0; i<[twitterFeed count]; i++) { NSString *nameString = [nameArray valueForKeyPath:@"name"]; NSString *imageString = [nameArray valueForKeyPath:@"profile_image_url"]; NSLog(@"Name feed: %@",nameString); NSLog(@"Image feed: %@",imageString); // get data into my mutable array TwitterCustomObject *twitterInfo = [self createPostFromArray:[nameArray objectAtIndex:i]]; //NSLog(@"Image feed: %@",twitterInfo); if (twitterInfo != nil) { [twitterObjects addObject:twitterInfo]; } } } }]; } } } else { // the user didn't give access UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Warning" message:@"This app will only work with twitter accounts being allowed!." delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil]; [alert performSelectorOnMainThread:@selector(show) withObject:nil waitUntilDone:FALSE]; } }]; } } } -(TwitterCustomObject*)createPostFromArray:(NSArray*)postArray { // create strings to catch the data in NSArray *userArray = [postArray valueForKeyPath:@"users"]; NSString *myUserName = [userArray valueForKeyPath:@"name"]; NSString *twitImageURL = [userArray valueForKeyPath:@"profile_image_url"]; UIImage *image = [UIImage imageWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:twitImageURL]]]; // initiate object to put the data in TwitterCustomObject *twitterData = [[TwitterCustomObject alloc]initWithPostInfo:myUserName myImage:image]; NSLog(@"Name: %@",myUserName); return twitterData; } -(IBAction)done:(UIStoryboardSegue*)segue { } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } @end Here is my customObject class TwitterCustomClass.h // // TwitterCustomObject.h // MDF2p2 // // Created by Brian Stacks on 6/5/14. // Copyright (c) 2014 Brian Stacks. All rights reserved. // #import <Foundation/Foundation.h> @interface TwitterCustomObject : NSObject { } @property (nonatomic, readonly) NSString *userName; @property (nonatomic, readonly) UIImage *userImage; -(id)initWithPostInfo:(NSString*)screenName myImage:(UIImage*)myImage; @end TwitterCustomClass.m // // TwitterCustomObject.m // MDF2p2 // // Created by Brian Stacks on 6/5/14. // Copyright (c) 2014 Brian Stacks. All rights reserved. // #import "TwitterCustomObject.h" @implementation TwitterCustomObject -(id)initWithPostInfo:(NSString*)screenName myImage:(UIImage*)myImage { // initialize as object if (self = [super init]) { // use the data to be passed back and forth to the tableview _userName = [screenName copy]; _userImage = [myImage copy]; } return self; } @end The problem is I get the values in the method twitterAPIcall, I can get the names and image values or strings from the values. But in the (TwitterCustomObject*)createPostFromArray:(NSArray*)postArray method all values are coming up as null.I thought it got added with this line of code in the twitterAPIcall method [twitterObjects addObject:twitterInfo];?

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  • UL alignment to bottom

    - by air
    dear i have define on ul <ul id="album"> <li id="list1"> <a href="#"> <img src="google.jpg" height="50"/> </a> <a href="#" class="user-title">Profile Pictures</a> 1 Picture </li> <li id="list1"> <a href="#"> <img src="yahoo.jpg" height="150"/> </a> <a href="#" class="user-title">Profile Pictures</a> 2 Picture </li> </ul> css for is as bellow. #album{ height:195px; width:155px; overflow:hidden; padding:6px 10px 14px 10px; float:left; } #album li{ border:0; padding:0; list-style:none; margin: 0 0.15em; list-style:none; display: inline; } #album img{ vertical-align:bottom; } #album a{ color:#000000; text-decoration:none; } #album .user-title{ display:block; font-weight:bold; margin-bottom:4px; font-size:11px; color:#36538D; } #album .addas{ display:block; font-size:11px; color:#666666; } #album img{ margin-right:14px; padding:4px; } this is working fine. but i need to align images to bottom on display. here is image

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  • Add WhereParameters to LinqDataSource in Selecting event

    - by Steven
    I have a repeater using a LinqDataSource as a data source. When a query string is entered, I'd like to filter the results, but ONLY when a query string is entered. If there is no query string, the results should not be filtered, all results should be returned. I'm trying to add a WhereParameter to my LinqDataSource in the Selecting event of the LinqDataSource, but it's not working. Here's my code: protected void ldsImages_Selecting(object sender, LinqDataSourceSelectEventArgs e) { if (Request.QueryString["id"] != null) { e.WhereParameters.Add("ImageTypeID", Request.QueryString["id"]); } }

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  • Dojo Table not Rendering in IE6

    - by Mike Carey
    I'm trying to use Dojo (1.3) checkBoxes to make columns appear/hide in a Dojo Grid that's displayed below the checkBoxes. I got that functionality to work fine, but I wanted to organize my checkBoxes a little better. So I tried putting them in a table. My dojo.addOnLoad function looks like this: dojo.addOnLoad(function(){ var checkBoxes = []; var container = dojo.byId('checkBoxContainer'); var table = dojo.doc.createElement("table"); var row1= dojo.doc.createElement("tr"); var row2= dojo.doc.createElement("tr"); var row3= dojo.doc.createElement("tr"); dojo.forEach(grid.layout.cells, function(cell, index){ //Add a new "td" element to one of the three rows }); dojo.place(addRow, table); dojo.place(removeRow, table); dojo.place(findReplaceRow, table); dojo.place(table, container); }); What's frustrating is: 1) Using the Dojo debugger I can see that the HTML is being properly generated for the table. 2) I can take that HTML and put just the table in an empty HTML file and it renders the checkBoxes in the table just fine. 3) The page renders correctly in Firefox, just not IE6. The HTML that is being generated looks like so: <div id="checkBoxContainer"> <table> <tr> <td> <div class="dijitReset dijitInline dijitCheckBox" role="presentation" widgetid="dijit_form_CheckBox_0" wairole="presentation"> <input class="dijitReset dijitCheckBoxInput" id="dijit_form_CheckBox_0" tabindex="0" type="checkbox" name="" dojoattachevent= "onmouseover:_onMouse,onmouseout:_onMouse,onclick:_onClick" dojoattachpoint="focusNode" unselectable="on" aria-pressed="false"/> </div> <label for="dijit_form_CheckBox_0"> Column 1 </label> </td> <td> <div class="dijitReset dijitInline dijitCheckBox" role="presentation" widgetid="dijit_form_CheckBox_1" wairole="presentation"> <input class="dijitReset dijitCheckBoxInput" id="dijit_form_CheckBox_1" tabindex="0" type="checkbox" name="" dojoattachevent= "onmouseover:_onMouse,onmouseout:_onMouse,onclick:_onClick" dojoattachpoint="focusNode" unselectable="on" aria-pressed="false"/> </div> </td> </tr> <tr> ... </tr> </table> </div> I would have posted to the official DOJO forums, but it says they're deprecated and they're using a mailing list now. They said if a mailing list doesn't work for you, use stackoverflos.com. So, here I am! Thanks for any insight you can provide.

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  • rails is loading from routes instead of the public folder

    - by djacobs7
    I have a rails app. I have a file in #{RAILS_ROOT}/public/swfs/somthing.swf. Locally, when running with webrick, when I go to the url localhost:3000/swfs/something.swf, my swf loads just fine. My routes.rb file looks like the following ActionController::Routing::Routes.draw do |map| map.connect ':controller/:action/:id' map.connect ':controller/:action/:id.:format' end Then, I started running the app with apache. When I visit myurl.com/swfs/something.swf, I get the following error message: Routing Error No route matches "/swfs/something.swf" with {:method=>:get} It looks like, for some reason, it is loading using the rails routes, instead of going to the public folder first. Any suggestions?

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  • Why i am not able to clear the date input field when i do not need? using jquery

    - by kumar
    I have this code in the view to display datepicker for input type.. $("input[id^='exc-flwup-']").datepicker({ duration: '', showTime: true, constrainInput: true, stepMinutes: 30, stepHours: 1, altTimeField: '', time24h: true, minDate: 0 }); This is my Input Filed in the Fieldset.. <label for="FollowupDate"> Follow-up: <span><input type="text" id="exc-flwup-<%=Model.ExceptionID %>" name="exc-flwup-<%=Model.ExceptionID %>" value="<%=Model.FollowupDate %>" /> </span> Problem Is when I click on the textbox on the UI I can select the date its working fine.. but when I am trying to clear the textbox its not going off its allways showing currect date and time.. Can anybody help me why its i am not able to make clear.. thanks

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  • something about sql-dump

    - by Yang
    hi, guys, i know that sql dump is a series of insert sql statement which reflects all the records inside the database. but may i know what is it used for? why should we dump the database records? is every database supports dumping function? Any additional background information is welcomed! Thanks in advance!

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  • Relational database queestion with php.

    - by Oliver Bayes-Shelton
    Hi, Not really a coding question more a little help with my idea of a Relational database. If I have 3 tables in a SQL database. In my php script I basically query the companies which are in industry "a" and then insert a row into a seperate table with their details such as companyId , companyName etc is that a type of Relational database ? I have explained it in a simple way so we don't get confused what I am trying to say.

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  • ASP.Net WebForms requiredfieldvalidator not working in FireFox?

    - by larryq
    I have a WebForms app that uses a field validator on a dropdownlist. It works in IE but not FireFox. This is pretty straightforward stuff I'm doing. Here are the setups for the dropdown and validator: <asp:DropDownList ID ="dmbFileActNo" runat="server" CssClass="DROPDOWN_MEDIUM" AutoPostBack="True"></asp:DropDownList> <asp:requiredfieldvalidator EnableClientScript="true" id="rfvFileActNo" Display="None" ControlToValidate="dmbFileActNo" Runat="server" InitialValue="-1"></asp:requiredfieldvalidator> I'm running ASP.Net 2.0 on the web server. Javascript is enabled on the FireFox browser-- this problem happens on all FF browsers I've tested, on multiple everyday machines, so I don't believe it's due to a locked down install.

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  • doctrine findby relation

    - by iggnition
    I'm having trouble selecting a subset of data with doctrine. I have 3 tables Location Contact Contact_location The contact and location tables hold a name and an id the other table holds only ID's. For instance: Location loc_id: 1 name: detroit Contact contact_id: 1 name: Mike Contact_location loc_id: 1 contact_id: 1 In doctrine there is a many to many relation between the location and contact tables with contact_location as the ref_class. What i want to do is on my location page i want to find all contacts where for instance the loc_id = 1. I tried: $this->installedbases = Doctrine::getTable('contact')->findByloc_id(1); hoping doctrine would see the relation and get it, but it does not. How can i make doctrine search in relevant related tables? I read it can be done using Findby but i find the documentation unclear.

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  • Variable collation with MySQL stored procedure?

    - by Chad Johnson
    I want to do something like this in a stored procedure: IF case_sensitive = FALSE THEN SET search_collation = "utf8_unicode_ci"; ELSE SET search_collation = "utf8_bin"; END IF; INSERT INTO TABLE1 (field1, field2) SELECT * FROM TABLE 2 WHERE some_field LIKE '%rarf%' collate search_collation; However, when I do this, I get ERROR 1273 (HY000): Unknown collation: 'search_collation' How can I use a dynamic collation without having two copies of the same query?

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  • Reconstructing Position in the Original Array from the Position in a Stripped Down Array

    - by aronchick
    I have a text file that contains a number of the following: <ID> <Time 1> --> <Time 2> <Quote (potentially multiple line> <New Line Separator> <ID> <Time 1> --> <Time 2> <Quote (potentially multiple line> <New Line Separator> <ID> <Time 1> --> <Time 2> <Quote (potentially multiple line> <New Line Separator> I have a very simple regex for stripping these out into a constant block so it's just: <Quote> <Quote> <Quote> What I'd like to do is present the quotes as a block to the user, and have them select it (using jQuery.fieldSelection) and then use the selected content to back out to the original array, so I can get timing and IDs. Because this has to go out to HTML, and the user has to be able to select the text on the screen, I can't do anything like hidden divs or hidden input fields. The only data I will have is the character range selected on screen. To be specific, this is what it looks like: 1 0:00 --> 0:05 He was bored. So bored. His great intellect, seemingly inexhaustible, was hungry for new challenges but he was the last of the great innovators 2 0:05 --> 0:10 - society's problems had all been solved. 3 0:11 --> 0:20 All seemingly unconnected disciplines had long since been found to be related in horrifically elusive and contrived ways and he had mastered them all. And this is what I'd like to present to the user for selection: He was bored. So bored. His great intellect, seemingly inexhaustible, was hungry for new challenges but he was the last of the great innovators - society's problems had all been solved. All seemingly unconnected disciplines had long since been found to be related in horrifically elusive and contrived ways and he had mastered them all. Has anyone com across something like this before? Any ideas how to take the selected text, or selection position, and go backwards to the original meta-data?

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  • Is it possible to create a generic Util Function to be used in Eval Page

    - by Nassign
    I am currently binding a Nullable bit column to a listview control. When you declare a list view item I need to handle the case when the null value is used instead of just true or false. <asp:Checkbox ID="Chk1" runat="server" Checked='<%# HandleNullableBool(Eval("IsUsed")) %>' /> Then in the page I add a HandleNullableBool() function inside the ASPX page. protected static bool HandleNullableBool(object value) { return (value == null) ? false : (bool)value; } This works fine but I need to use this in several pages so I tried creating a utility class with a static HandleNullableBool. But using it in the asp page does not work. Is there a way to do this in another class instead of the ASPX page? <asp:Checkbox ID="Chk1" runat="server" Checked='<%# Util.HandleNullableBool(Eval("IsUsed")) %>' />

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  • Can't interact with children of an itemRenderer in Flex 4 Gumbo

    - by BlueDude
    I thought this would be pretty easy but I'm running into all sorts of problems with this. I have an ItemRenderer with a an image and two labels. I want to assign separate mouse events to the image and two labels. It seems like the item renderer is treated like a single interactive piece and I haven't found a way to override that. I couldn't even disable the default rollover effect so I had to style the rollOverColor to match my background. Can anyone provide a solution? <s:DataGroup id="browserDataGroup" dataProvider="{model.userBoardList}" verticalCenter="0" left="10" rollOverColor="0x424242" itemRenderer="edu.xxxxx.components.board.BrowserItemRenderer"> <!--itemrenderer code below --> <s:ItemRenderer xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/halo" xmlns:ns="library://ns.adobe.com/flex/mx" buttonMode="true" useHandCursor="true" mouseChildren="true"> <s:states> <s:State name="up"/> <s:State name="over"/> </s:states> <s:layout> <s:VerticalLayout gap="2"/> </s:layout> <s:Group> <ns:Image id="image" source="{data.thumbnail}" addedEffect="Fade" completeEffect="Fade" removedEffect="Fade" width="130" height="89" horizontalCenter="0" verticalCenter="0"/> <s:Rect id="imageRect" width="130" height="89"> <s:stroke> <s:SolidColorStroke color="0xFFFFFF" joints="miter" pixelHinting="true"/> </s:stroke> </s:Rect> </s:Group> <s:Label text="{data.title}" color="0xFFFFFF" fontWeight="bold"/> <s:Group> <s:layout> <s:HorizontalLayout gap="3"/> </s:layout> <s:Label text="Edit" color="0xFFFFFF" click="trace('edit');" textDecoration.up="underline" textDecoration.over="none"/> <s:Label text="|" color="0xFFFFFF"/> <s:Label text="Delete" color="0xFFFFFF" click="trace('delete');" textDecoration.up="underline" textDecoration.over="none"/> </s:Group> </s:ItemRenderer>

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  • Jquery TimePicker : How to dynamically change parameters

    - by mad.geek
    I am using a Jquery Timepicker . I have two input fields - to Accept times . <input id="startTime" size="30" type="text" /> <input id="endTime" size="30" type="text" /> I am using a Jquery UI timer as per documentation here - http://jonthornton.github.com/jquery-timepicker/ $('#startTime').timepicker({ 'minTime': '6:00am', 'maxTime': '11:30pm', 'onSelect': function() { //change the 'minTime parameter of #endTime <--- how do I do this ? } }); $('#endTime').timepicker({ 'minTime': '2:00pm', 'maxTime': '11:30pm', 'showDuration': true }); I want that when the first timePicker is selected , the 'minTime' parameter for the second gets changed . Basically I am trying to collect the start time and end time for certain activity . And I want that the second input box shows the options from the value of the first input field (start time ) itself .

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  • How to combine a relative top with an absolute bottom in CSS?

    - by ceving
    I need to define a div which must stay with the top at the normal position, which differs from the top of the surrounding element: position:relative top:0 and which grows in the height up to the size of the surrounding element: position:absolute bottom:0 I have no idea how to combine the both. Whenever I use a relative box I loose the absolute bottom and whenever I use an absolute box I loose the relative top. Can anybody help me how to do this in CSS? Here is an example: <html> <head> </head> <style type="text/css"> @media screen { body { position: absolute; top: 0; left: 0; right: 0; bottom: 0; margin: 0; padding: 0; } #head { background-color: gray; } #rel { background-color: green; position: relative; top: 0; bottom: 0; float: left; } #abs { background-color: red; position: absolute; top: 0; bottom: 0; float: left; } } </style> <body> <div id="head"> <h1>Head</h1> </div> <div id="abs"> <h2>absolute</h2> </div> <div id="rel"> <h2>relative</h2> </div> </body> </html> "relative" does not grow at all and "absolute" grows too much.

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  • Playing dynamically embedded sound object via Javascript

    - by Vikram Goyal
    I need to background load some WAV files for an HTML page using AJAX. I use AJAX to get the details of the WAV files, then use the embed tag, and I can confirm that the files have loaded successfully because when I set autostart to true, the files play. However, I need the files to play only when the user clicks on a button (or an event is fired). The following is my code to preload these files: function preloadMedia() { for(var i = 0; i < testQuestions.length; i++) { var soundEmbed = document.createElement("embed"); soundEmbed.setAttribute("src", "/media/sounds/" + testQuestions[i].mediaFile); soundEmbed.setAttribute("hidden", true); soundEmbed.setAttribute("id", testQuestions[i].id); soundEmbed.setAttribute("autostart", false); soundEmbed.setAttribute("width", 0); soundEmbed.setAttribute("height", 0); soundEmbed.setAttribute("enablejavascript", true); document.body.appendChild((soundEmbed)); } } I use the following code to play the file (based on what sound file that user wants to play) function soundPlay(which) { var sounder = document.getElementById(which); sounder.Play(); } Something is wrong here, as none of the browsers I have tested on play the files using the code above. There are no errors, and the code just returns. I would have left it at that (that is - I would have convinced the client to convert all WAV's to MP3 and use MooTools). But I realized that I could play the sound files, which were not dynamically embeded. Thus, the same soundPlay function would work for a file embeded in the following manner: <embed src="/media/sounds/hug_sw1.wav" id="sound2" width="0" heigh="0" autostart="false" enablejavascript="true"/> anywhere within the HTML. And it plays well in all the browsers. Anyone have a clue on this? Is this some sort of undocumented security restriction in all the browsers? (Please remember that the files do get preloaded dynamically, as I can confirm by setting the autostart property to true - They all play). Any help appreciated.

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  • Net::Cassandra::Easy equivalent of "SELECT * FROM ..."

    - by knorv
    When using Perl's Net::Cassandra::Easy the following code will retrieve columns col[1-3] from rows row[1-3]: $result = $cassandra->get(['row1', 'row2', 'row3'], family => 'Standard1', byname => ['col1', 'col2', 'col3'); The corresponding SQL would be: SELECT col1, col2, col3 FROM rows WHERE id IN ('row1', 'row2', 'row3'); Suppose instead that I want to retrieve all columns. In SQL terms that would be: SELECT * FROM rows WHERE id IN ('row1', 'row2', 'row3'); To get all columns I am currently using: $result = $cassandra->get(['row1', 'row2', 'row3'], family => 'Standard1', byoffset => { "count" => 1_000_000 }); This works as long as the number of columns does not exceed one million. While this works I'd assume that there is a cleaner way to do it. My question is: Is there any cleaner way to specify to Cassandra that I want to retrieve all columns for the maching rows?

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  • C# Design Questions

    - by guazz
    How to approach unit testing of private methods? I have a class that loads Employee data into a database. Here is a sample: public class EmployeeFacade { public Employees EmployeeRepository = new Employees(); public TaxDatas TaxRepository = new TaxDatas(); public Accounts AccountRepository = new Accounts(); //and so on for about 20 more repositories etc. public bool LoadAllEmployeeData(Employee employee) { if (employee == null) throw new Exception("..."); EmployeeRepository emps = new EmployeeRepository(); bool exists = emps.FetchExisting(emps.Id); if (!exists) { emps.AddNew(); } try { emps.Id = employee.Id; emps.Name = employee.EmployeeDetails.PersonalDetails.Active.Names.FirstName; emps.SomeOtherAttribute; } catch() {} try { emps.Save(); } catch(){} try { LoadorUpdateTaxData(employee.TaxData); } catch() {} try { LoadorUpdateAccountData(employee.AccountData); } catch() {} ... etc. for about 20 more other employee objects } private bool LoadorUpdateTaxData(employeeId, TaxData taxData) { if (taxData == null) throw new Exception("..."); ...same format as above but using AccountRepository } private bool LoadorUpdateAccountData(employee.TaxData) { ...same format as above but using TaxRepository } } I am writing an application to take serialised objects(e.g. Employee above) and load the data to the database. I have a few design question that I would like opinions on: A - I am calling this class "EmployeeFacade" because I am (attempting?) to use the facade pattern. Is it good practace to name the pattern on the class name? B - Is it good to call the concrete entities of my DAL layer classes "Repositories" e.g. "EmployeeRepository" ? C - Is using the repositories in this way sensible or should I create a method on the repository itself to take, say, the Employee and then load the data from there e.g. EmployeeRepository.LoadAllEmployeeData(Employee employee)? I am aim for cohesive class and but this will requrie the repository to have knowledge of the Employee object which may not be good? D - Is there any nice way around of not having to check if an object is null at the begining of each method? E - I have a EmployeeRepository, TaxRepository, AccountRepository declared as public for unit testing purpose. These are really private enities but I need to be able to substitute these with stubs so that the won't write to my database(I overload the save() method to do nothing). Is there anyway around this or do I have to expose them? F - How can I test the private methods - or is this done (something tells me it's not)? G- "emps.Name = employee.EmployeeDetails.PersonalDetails.Active.Names.FirstName;" this breaks the Law of Demeter but how do I adjust my objects to abide by the law?

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  • RadControl DateTimePicker Selecting new time doesn't remove highlight from previous selection

    - by Jason Beck
    This is not browser specific - the behavior exists in Firefox and IE. The RadControl is being used within a User Control in a SiteFinity site. Very little customization has been done to the control. <telerik:RadDateTimePicker ID="RadDateTimePicker1" runat="server" MinDate="2010/1/1" Width="250px"> <ClientEvents></ClientEvents> <TimeView starttime="08:00:00" endtime="20:00:00" interval="02:00:00"></TimeView> <DateInput runat="server" ID="DateInput"></DateInput> </telerik:RadDateTimePicker> protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { RadDateTimePicker1.MinDate = DateTime.Now; } }

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  • NHibernate CreateSQLQuery data conversion from bit to boolean error

    - by RemotecUk
    Hi, Im being a bit lazy in NHibernate and using Session.CreateSqlQuery(...) instead of doing the whole thing with Lambda's. Anyway what struct me is that there seems to be a problem converting some of the types returned from (in this case the MySQL) DB into native .Net tyes. The query in question looks like this.... IList<Client> allocatableClients = Session.CreateSQLQuery( "select clients.id as Id, clients.name as Name, clients.customercode as CustomerCode, clients.superclient as SuperClient, clients.clienttypeid as ClientType " + ... ... .SetResultTransformer(new NHibernate.Transform.AliasToBeanResultTransformer(typeof(Client))).List<Client>(); The type in the database of SuperClient is a bit(1) and in the Client object the type is a bool. The error received is: System.ArgumentException: Object of type 'System.UInt64' cannot be converted to type 'System.Boolean'. It seems strange that this conversion cannot be completed. Would be greatful for any ideas. Thanks.

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