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  • Error creating Rails DB using rake db:create

    - by Simon
    Hi- I'm attempting to get my first "hello world" rails example going using the rails' getting started guide on my OSX 10.6.3 box. When I go to execute the first rake db:create command (I'm using mysql) I get: simon@/Users/simon/source/rails/blog/config: rake db:create (in /Users/simon/source/rails/blog) Couldn't create database for {"reconnect"=>false, "encoding"=>"utf8", "username"=>"root", "adapter"=>"mysql", "database"=>"blog_development", "pool"=>5, "password"=>nil, "socket"=>"/opt/local/var/run/mysql5/mysqld.sock"}, charset: utf8, collation: utf8_unicode_ci (if you set the charset manually, make sure you have a matching collation) I found plenty of stackoverflow questions addressing this problem with the following advice: Verify that user and password are correct (I'm running w/ no password for root on my dev box) Verify that the socket is correct - I can cat the socket, so I assume it's correct Verify that the user can create a DB (As you can see root can connect and create a this DB no problem) simon@/Users/simon/source/rails/blog/config: mysql -uroot -hlocalhost Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 16 Server version: 5.1.45 Source distribution Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql create database blog_development; Query OK, 1 row affected (0.00 sec) Any idea on what might be going on here?

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  • Atomic UPSERT in SQL Server 2005

    - by rabidpebble
    What is the correct pattern for doing an atomic "UPSERT" (UPDATE where exists, INSERT otherwise) in SQL Server 2005? I see a lot of code on SO (e.g. see http://stackoverflow.com/questions/639854/tsql-check-if-a-row-exists-otherwise-insert) with the following two-part pattern: UPDATE ... FROM ... WHERE <condition> -- race condition risk here IF @@ROWCOUNT = 0 INSERT ... or IF (SELECT COUNT(*) FROM ... WHERE <condition>) = 0 -- race condition risk here INSERT ... ELSE UPDATE ... where will be an evaluation of natural keys. None of the above approaches seem to deal well with concurrency. If I cannot have two rows with the same natural key, it seems like all of the above risk inserting rows with the same natural keys in race condition scenarios. I have been using the following approach but I'm surprised not to see it anywhere in people's responses so I'm wondering what is wrong with it: INSERT INTO <table> SELECT <natural keys>, <other stuff...> FROM <table> WHERE NOT EXISTS -- race condition risk here? ( SELECT 1 FROM <table> WHERE <natural keys> ) UPDATE ... WHERE <natural keys> (Note: I'm assuming that rows will not be deleted from this table. Although it would be nice to discuss how to handle the case where they can be deleted -- are transactions the only option? Which level of isolation?) Is this atomic? I can't locate where this would be documented in SQL Server documentation.

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  • which language to use for building web application?

    - by harshit
    Hi I already have experience in developing websites using java technologies ... Now i have a task to develop another website and i have the liberty to select technology to built. I dont want to built using Java/J2ee standard technology as i want to learn new language. The specification about website i can give is that: 1) its a real estate based site. 2) so it will have a db of real estate data around million records 3) website will have more than 1000 hits /day and will have various functionality like search, add , delete,generate reports etc. So i mean UI should be good and fast. Technologies i have in mind .NEt( i have already worked on it but it licensed so may not go for it) , Groovy, Ruby on rails ,Play, GWT etc ... I am a college student and the website is again of a student(non techie guy) so i have 5-6 mnths to bring the website up I have read about them but all have adv and disadv but would like to hear from people who have used it and can tell me what they felt about the languages and problems while developing it.. Please feel free to drop any opinion you feel . Thanks

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  • Parsing XML in a non-XML column

    - by slugster
    Hi, i am reasonably proficient with SQLServer, but i'm not a DBA so i'm not sure how to approach this. I have an XML chunk stored in an ntext column. Due to it being a legacy database and the requirements of the project i cannot change the table (yet). This is an example of the data i need to manipulate: <XmlSerializableHashtable xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <Entries> <Entry> <key xsi:type="xsd:string">CurrentYear</key><value xsi:type="xsd:string">2010</value> </Entry> <Entry> <key xsi:type="xsd:string">CurrentMonth</key><value xsi:type="xsd:string">4</value> </Entry> </Entries> </XmlSerializableHashtable> each row will have a chunk like this, but obviously with different keys/values in the XML. Is there any clever way i can parse this XML in to a name/value pairs style view? Or should i be using SQLServer's XML querying abilities even though it isn't an XML column? If so, how would i query a specific value out of that column? (Note: adding a computed XML column on the end of the table is a possibility, if that helps). Thanks for any assistance!

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  • Contact-app like scrollinglist on android

    - by Alxandr
    I'm writing my first android app (I'm a noob at android, but decent at java). The first screen of the app consists of a huge list (about 1.5K items) of Manga-objects. The code I use is as following: main.xml: <?xml version="1.0" encoding="utf-8"?> <LinearLayout android:id="@+id/LinearLayout01" android:layout_width="fill_parent" android:layout_height="fill_parent" xmlns:android="http://schemas.android.com/apk/res/android"> <ListView android:layout_height="fill_parent" android:layout_width="fill_parent" android:id="@+id/android:list"></ListView> <TextView android:layout_height="fill_parent" android:layout_width="fill_parent" android:text="@string/list_no_items" android:id="@+id/android:empty"></TextView> </LinearLayout> row.xml: <LinearLayout android:id="@+id/LinearLayout01" android:layout_width="fill_parent" android:layout_height="?android:attr/listPreferredItemHeight" android:padding="6dip" xmlns:android="http://schemas.android.com/apk/res/android"> <ImageView android:id="@+id/icon" android:layout_width="wrap_content" android:layout_height="fill_parent" android:layout_marginRight="6dip" android:src="@drawable/icon" /> <LinearLayout android:orientation="vertical" android:layout_width="0dip" android:layout_weight="1" android:layout_height="fill_parent"> <TextView android:id="@+id/toptext" android:layout_width="fill_parent" android:layout_height="0dip" android:layout_weight="1" android:gravity="center_vertical" /> <TextView android:layout_width="fill_parent" android:layout_height="0dip" android:layout_weight="1" android:id="@+id/bottomtext" android:singleLine="true" android:ellipsize="marquee" /> </LinearLayout> </LinearLayout> Then I have a adapter which basically takes a Manga-object and puts it's name in the rows toptext, and it's latest updated date in the bottomtext. However, (this might be caused by the virtualization of the unit though), the result is really slow. Scrolling the list takes forever and you can only scroll small peaces of the time. How can I make the list work like the one in the contacts-app? So that when you start scrolling a handle pops out at the right side of the screen, and when you drag it letters shows up as of how far you've scrolled (the list is sorted alphabetically), and also, is there a way I could improve the performance of the list?

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  • Error in simple Java application

    - by mrblah
    Just playing around with java trying to learn it etc. Here is my code so far, using HtmlUnit. package hsspider; import com.gargoylesoftware.htmlunit.WebClient; /** * @author */ public class Main { /** * @param args the command line arguments */ public static void main(String[] args) { System.out.println("starting "); Spider spider = new Spider(); spider.Test(); } } package hsspider; import com.gargoylesoftware.htmlunit.WebClient; import com.gargoylesoftware.htmlunit.html.HtmlPage; /** * @author */ public class Spider { public void Test() throws Exception { final WebClient webClient = new WebClient(); final HtmlPage page = webClient.getPage("http://www.google.com"); System.out.println(page.getTitleText()); } } I am using Netbeans. I can't seem to figure out what the problem is, why doesn't it compile? The error: C:\Users\mrblah\.netbeans\6.8\var\cache\executor-snippets\run.xml:45: Cancelled by user. BUILD FAILED (total time: 0 seconds) The row in the xml is: <translate-classpath classpath="${classpath}" targetProperty="classpath-translated" />

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  • How to HitTest in a WPF Grid Panel to find column index.

    - by John
    Hi. We need to create a "timeline" feature where a user is allowed to drag and draw "time spans" into a WPF grid (we thought this better than a Canvas since it has resizing capabilities). Each span spans multiple columns, but only one row. We utilize the PreviewMouseDown/Up/Move events to see when the user clicks, drags, and releases the mouse. On the "Down" we create a new rectangle and on the "Move" we resize the rectangle, settings its ColumnSpan property to the correct value every time the mouse enteres the next column. At this point the grid has 48 1-star-sized columns. How do we find out which column the user has clicked on? Right now we are unable to find the column using the VisualTreeHelper.HitTest function. We would like to position the rectangle correctly via Grid.SetColumn(rect, X) and then resize it as needed using Grid.SetColumnSpan(rect, Y) Has anyone done something like this before and can help us? Or, is there a better way to draw what we need? Thanks.

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  • SQLite NHibernate configuration with .Net 4.0 and vs 2010

    - by Berryl
    I am having way too much trouble getting my environment straight after switching to 2010 and .net 4.0, so I'd like to break the whole process down once and for all. 1) Which SQLite dll?? I think it is SQLite-1.0.65.1-vs2010rc-net4-setup.zip. Yes? 2) I ran the installer so the dll is in the GAC but I usually find there are less problems if I can just reference the dll stand alone. Is there any reason it needs to be in the GAC, and if not, what's the best way to uninstall it from the GAC (I can get to the GAC folder but it says I need permission to delete the files; should I leave the SQLite Designer dll's there?)? 3) x64. There is an x64 dll in the download. I had problems with SQLite in the past though that I could only resolve by compiling to x86. Can I safely reference the x64 dll and compile to Any CPU now? 4) what is the right NHib config? I have been using the one below, but since the error I get says "Could not create the driver from NHibernate.Driver.SQLite20Driver." that configuration is guilty until proven innocent too? 5) could FNH be a problem too? I don't use the pre-configured fluent SQLite method but FNH has to provide a reference to it for that to work, no? TIA & Cheers, Berryl <hibernate-configuration xmlns="urn:nhibernate-configuration-2.2"> ... <property name="dialect">NHibernate.Dialect.SQLiteDialect</property> <property name="connection.driver_class">NHibernate.Driver.SQLite20Driver</property> <property name="connection.connection_string">Data Source=:memory:;Version=3;New=True;</property> .... </hibernate-configuration>

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  • Recover a folder or file in TortoiseSVN whilst also retaining all history.

    - by Topdown
    In revision 1 a folder existed. In revision 2 the folder was accidently deleted and the change committed. We wish to roll back such that the folder is present, and retain its history. In the TortoiseSVN docs it indicates 'how' in the section titled "Getting a deleted file or folder back". To quote: Getting a deleted file or folder back If you have deleted a file or a folder and already committed that delete operation to the repository, then a normal TortoiseSVN - Revert can't bring it back anymore. But the file or folder is not lost at all. If you know the revision the file or folder got deleted (if you don't, use the log dialog to find out) open the repository browser and switch to that revision. Then select the file or folder you deleted, right-click and select [Context Menu] - [Copy to...] as the target for that copy operation select the path to your working copy. A switch retrieves the file into my working copy as one would expect, however there is no "Copy to" option on the context menu when I right click this working copy. If I open the repos browser, there is a copy to option, but it seems this simply takes a copy of the file. The solution I feel is to do a Branch/Tag, but if I try this from a prior revision to the same path in the repository SVN throws error that the path already exists. Therefore, how do I recover a folder/file in TortoiseSVN whilst also retaining all history. TortoiseSVN v1.6.8, Build 19260 - 32 Bit , Subversion 1.6.11,

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  • How to handle this string in json?

    - by Pandiya Chendur
    I am storing a multiline textbox value in my db table... When i converted this value to json it gives me an error Error: unterminated string literal... My sample data was , I am fetching the row to my datatable and then converting it to json, public string GetJSONString(DataTable table) { StringBuilder headStrBuilder = new StringBuilder(table.Columns.Count * 5); for (int i = 0; i < table.Columns.Count; i++) { headStrBuilder.AppendFormat("\"{0}\" : \"{0}{1}¾\",", table.Columns[i].Caption, i); } headStrBuilder.Remove(headStrBuilder.Length - 1, 1); StringBuilder sb = new StringBuilder(table.Rows.Count * 5); sb.Append("{\""); sb.Append(table.TableName); sb.Append("\" : ["); for (int i = 0; i < table.Rows.Count; i++) { string tempStr = headStrBuilder.ToString(); sb.Append("{"); for (int j = 0; j < table.Columns.Count; j++) { table.Rows[i][j] = table.Rows[i][j].ToString().Replace("'", ""); tempStr = tempStr.Replace(table.Columns[j] + j.ToString() + "¾", table.Rows[i][j].ToString()); } sb.Append(tempStr + "},"); } sb.Remove(sb.Length - 1, 1); // trim last , sb.Append("]}"); return sb.ToString(); } The above method doen't seem to handle newline character... Any suggestion...

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  • UITableViewCell no userInteraction but on cell.accessoryView

    - by Simon
    hello genius and nerds I have a TableViewCell with a UISwitch in accessoryView. I don't want that blue background if someone selected it. There fore i used cell.userInteractionEnabled = NO; but then the whole cell isnt accessable so i tried that cell.userInteractionEnabled = NO; cell.accessoryView.userInteractionEnabled = YES; i think this wont work because cell is the parent of the accessoryView. but how can i manage this issue ? A hint in the right direction would be great. Simon Here is the complete cellForRowAtIndexPath method: cell.textLabel.text = @"dasda"; cell.userInteractionEnabled = NO; cell.accessoryType = UITableViewCellAccessoryNone; UISwitch *mySwitch = [[[UISwitch alloc] initWithFrame:CGRectZero] autorelease]; mySwitch.tag = row; [cell addSubview:mySwitch]; cell.accessoryView = mySwitch; cell.accessoryView.userInteractionEnabled = YES; [(UISwitch *)cell.accessoryView setOn: YES]; [(UISwitch *)cell.accessoryView addTarget:self action:@selector(someAction:) forControlEvents:UIControlEventValueChanged]; return cell;

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  • Wpf: Why is WriteableBitmap getting slower?

    - by fritz
    There is a simple MSDN example about WriteableBitmap. It shows how to draw a freehand line with the cursor by just updating one pixel when the mouse is pressed and is moving over a WPF -Image Control. writeableBitmap.Lock(); (...set the writeableBitmap.BackBuffers pixel value...) writeableBitmap.AddDirtyRect(new Int32Rect(column, row, 1, 1)); writeableBitmap.Unlock(); Now I'm trying to understand the following behaviour when moving the mouse pointer very fast: If the image/bitmap size is relatively small e.g. 800:600 pixel, then the last drawn pixel is always "synchronized" with the mouse pointers position, i.e. there is no delay, very fast reaction on mouse movements. But if the bitmap gets larger e.g. 1300:1050 pixel, you can notice a delay, the last drawn pixel always appear a bit delayed behind the moving mouse pointer. So as in both cases only one pixel gets updated with "AddDirtyRect", the reaction speed should be independent from the bitmap size!? But it seems that Writeablebitmap gets slower when it's size gets larger. Or does the whole bitmap somehow get transferred to the graphic device on every writeableBitmap.Unlock(); call , and not only the rectangle area speficied in the AddDirtyRect method? fritz

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  • Grails beginner problem "Failed to invoke Servlet 2.5"

    - by A Lion
    I'm trying to get Groovy on Grails set up on a Snow Leopard machine. I followed all the grails.com install directions and am trying to start the application from Grails: A Quick-Start Guide by Dave Klein. I ran grails create-app TekDays with no apparent problems and was able to cd to the TekDays folder, but when I try to run grails run-app I get the following: Welcome to Grails 1.3.1 - http://grails.org/ Licensed under Apache Standard License 2.0 Grails home is set to: /grails Base Directory: /apps/TekDays Resolving dependencies... Dependencies resolved in 4469ms. Running script /grails/scripts/RunApp.groovy Environment set to development [delete] Deleting directory /Users/name/.grails/1.3.1/projects/TekDays/tomcat Running Grails application.. 2010-05-24 21:42:39,559 [main] ERROR context.GrailsContextLoader - Error executing bootstraps: Failed to invoke Servlet 2.5 getContextPath method java.lang.IllegalStateException: Failed to invoke Servlet 2.5 getContextPath method at org.grails.tomcat.TomcatServer.start(TomcatServer.groovy:164) at grails.web.container.EmbeddableServer$start.call(Unknown Source) at _GrailsRun_groovy$_run_closure5_closure12.doCall(_GrailsRun_groovy:159) at _GrailsRun_groovy$_run_closure5_closure12.doCall(_GrailsRun_groovy) at _GrailsSettings_groovy$_run_closure10.doCall(_GrailsSettings_groovy:282) at _GrailsSettings_groovy$_run_closure10.call(_GrailsSettings_groovy) at _GrailsRun_groovy$_run_closure5.doCall(_GrailsRun_groovy:150) at _GrailsRun_groovy$_run_closure5.call(_GrailsRun_groovy) at _GrailsRun_groovy.runInline(_GrailsRun_groovy:116) at _GrailsRun_groovy.this$4$runInline(_GrailsRun_groovy) at _GrailsRun_groovy$_run_closure1.doCall(_GrailsRun_groovy:59) at RunApp$_run_closure1.doCall(RunApp.groovy:33) at gant.Gant$_dispatch_closure5.doCall(Gant.groovy:381) at gant.Gant$_dispatch_closure7.doCall(Gant.groovy:415) at gant.Gant$_dispatch_closure7.doCall(Gant.groovy) at gant.Gant.withBuildListeners(Gant.groovy:427) at gant.Gant.this$2$withBuildListeners(Gant.groovy) at gant.Gant$this$2$withBuildListeners.callCurrent(Unknown Source) at gant.Gant.dispatch(Gant.groovy:415) at gant.Gant.this$2$dispatch(Gant.groovy) at gant.Gant.invokeMethod(Gant.groovy) at gant.Gant.executeTargets(Gant.groovy:590) at gant.Gant.executeTargets(Gant.groovy:589) Caused by: java.lang.NoSuchMethodException: javax.servlet.ServletContext.getContextPath() at java.lang.Class.getMethod(Class.java:1605) ... 23 more I've googled every derivative of "Failed to invoke Servlet 2.5" that I can think of, but have thus far been unable to find anything that helps me understand, yet alone resolve, the error. Any advice to help me resolve this would be very much appreciated!

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  • Show Add button after Edit button is clicked?

    - by David.Chu.ca
    I have a view with navigation bar control on the top. The view is in the second level with a "back" button is displayed on the left by default. In my view class, I added a default navigation edit button on the right: self.navigationbarItem.rightButtonItem = self.editButtonItem; with this line of code, an edit button is on the right side, and when it is clicked, the view (table view) becomes editable with delete mark on the left for each row. After that, the edit button's caption becomes "done". All those are done by the default edit button built in the navigation control, I think. I would like to add an add button the left, or replace "back" button when edit is clicked. I guess I have to implement some kind of delegate in my view class. This would provide a place to plug in my code to add the add button on the left when edit button is clicked, and to restore "back" button back when the done button is clicked. If so, what's the delegate? Or is there any other way to achieve it?

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  • Need help limiting a join in Transact-sql

    - by MsLis
    I'm somewhat new to SQL and need help with query syntax. My issue involves 2 tables within a larger multi-table join under Transact-SQL (MS SQL Server 2000 Query Analyzer) I have ACCOUNTS and LOGINS, which are joined on 2 fields: Site & Subset. Both tables may have multiple rows for each Site/Subset combination. ACCOUNTS: | LOGINS: SITE SUBSET FIELD FIELD FIELD | SITE SUBSET USERID PASSWD alpha bravo blah blah blah | alpha bravo foo bar alpha charlie blah blah blah | alpha bravo bar foo alpha charlie bleh bleh blue | alpha charlie id ego delta bravo blah blah blah | delta bravo john welcome delta foxtrot blah blah blah | delta bravo jane welcome | delta bravo ken welcome | delta bravo barbara welcome I want to select all rows in ACCOUNTS which have LOGIN entries, but only 1 login per account. DESIRED RESULT: SITE SUBSET FIELD FIELD FIELD USERID PASSWD alpha bravo blah blah blah foo bar alpha charlie blah blah blah id ego alpha charlie bleh bleh blue id ego delta bravo blah blah blah jane welcome I don't really care which row from the login table I get, but the UserID and Password have to correspond. [Don't return invalid combinations like foo/foo or bar/bar] MS Access has a handy FIRST function, which can do this, but I haven't found an equivalent in TSQL. Also, if it makes a difference, other tables are joined to ACCOUNTS, but this is the only use of LOGINS in the structure. Thank you very much for any assistance.

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  • Using JBoss EL with Websphere

    - by rat
    Hey, I'm doing a project which is going to run on Websphere. I'm using JSF/Facelets/Richfaces for this project. I want to use the JBoss EL implementation as it allows calling methods with parameters from EL etc. ... usually this is accomplished by getting the JBoss EL jar and then putting this in the web.xml: <context-param> <param-name>com.sun.faces.expressionFactory</param-name> <param-value>org.jboss.el.ExpressionFactoryImpl</param-value> </context-param> However this isn't working ... I don't know if its a problem with Websphere or ...??? I get a stack trace when going to the page saying it can't parse the EL where I have passed a method a parameter: <a4j:commandLink value="Delete" action="#{mcsaAdmin.deleteLanguage(1234)}" /> Looking at the stacktrace it appears to still be using the standard sun EL: Caused by: javax.el.ELException: Error Parsing: #{mcsaAdmin.deleteLanguage(1234)} at com.sun.el.lang.ExpressionBuilder.createNodeInternal(Unknown Source) at com.sun.el.lang.ExpressionBuilder.build(Unknown Source) at com.sun.el.lang.ExpressionBuilder.createMethodExpression(Unknown Source) at com.sun.el.ExpressionFactoryImpl.createMethodExpression(Unknown Source) at com.sun.facelets.tag.TagAttribute.getMethodExpression(TagAttribute.java:141) Note the 'com.sun.el.ExpressionFactoryImpl' instead of 'org.jboss.el.ExpressionFactoryImpl' as specified above ... Am I doing something obviously wrong? Anyone have any ideas... I'm using standard JSF implementation from majorra project or whatever provided on sun website and richfaces 3.1.4 and facelets 1.1.14.

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  • newline-ignoring diff / diff across multiple lines / reflow-ignoring diff

    - by Adam
    Does anybody know of a diff-like tool that can show me the changes between two text files, but ignore changes in whitespace including newlines? Here's an example: the quick brown fox jumped over the lazy bear. the quick brown fox jumped over the lazy bear. the quick brown fox jumped over the lazy bear. the quick brown fox jumped over the lazy bear. quick brown fox jumped over the lazy bear. the quick brown fox jumped over the lazy bear. the quick brown fox jumped over the lazy bear. the quick brown fox jumped over the lazy bear. All I did was delete one word and reflow it, but "diff -b" detects a change on every line (as it should; I'm not saying this is a bug in diff). But for large LaTeX files this is a major problem; change one word in a long paragraph and the diff you get back is basically useless. By the way, I'm aware that this requires way more computational power than the usual lines-are-atomic diff. I'm only doing this on small human-generated files and am happy to wait a long time if I have to.

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  • iPhone SDK: Rendering a CGLayer into an image object

    - by codemercenary
    Hi all, I am trying to add a curved border around an image downloaded and to be displayed in a UITableViewCell. In the large view (ie one image on the screen) I have the following: productImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:product.image]]; [productImageView setAlpha:0.4]; productImageView.frame = CGRectMake(10.0, 30.0, 128.0, 128.0); CALayer *roundedlayer = [productImageView layer]; [roundedlayer setMasksToBounds:YES]; [roundedlayer setCornerRadius:7.0]; [roundedlayer setBorderWidth:2.0]; [roundedlayer setBorderColor:[[UIColor darkGrayColor] CGColor]]; [self addSubview:productImageView]; In the table view cell, to get it to scroll fast, an image needs to be drawn in the drawRect method of a UIView which is then added to a custom cell. so in drawRect - (void)drawRect:(CGRect)rect { ... point = CGPointMake(boundsX + LEFT_COLUMN_OFFSET, UPPER_ROW_TOP); //CALayer *roundedlayer = [productImageView layer]; //[roundedlayer setMasksToBounds:YES]; //[roundedlayer setCornerRadius:7.0]; //[roundedlayer setBorderWidth:2.0]; //[roundedlayer setBorderColor:[[UIColor darkGrayColor] CGColor]]; //[productImageView drawRect:CGRectMake(boundsX + LEFT_COLUMN_OFFSET, UPPER_ROW_TOP, IMAGE_WIDTH, IMAGE_HEIGHT)]; // [productImageView.image drawInRect:CGRectMake(boundsX + LEFT_COLUMN_OFFSET, UPPER_ROW_TOP, IMAGE_WIDTH, IMAGE_HEIGHT)]; So this works well, but if I remove the comment and try to show the rounded CA layer the scrolling goes really slow. To fix this I suppose I would have to render this image context into a different image object, and store this in an array, then set this image as something like: productImageView.image = (UIImage*)[imageArray objectAtIndex:indexPath.row]; My question is "How do I render this layer into an image?" TIA.

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  • jQuery UI Tabs customization for many tabs

    - by Tauren
    I'd like to implement a tab bar using jquery-ui-tabs that has been customised to work like it does on HootSuite. Try this on HootSuite to see what I mean: Log in to your hootsuite.com account Click the + symbol to the right of your tabs Add tabs named "MMMMMMMMMMMMMMMMM" until a "More..." tab appears You'll see this: HootSuite includes the following features, all of which I would like to do: Fit as many tabs as possible onto the screen. Users with larger screens would see more tabs. If they run out of space, a "More..." tab would appear with a drop-down list Clicking onto the More tab would drop down a list of additional tabs Tabs can be dragged and rearranged. Tabs in the More drop-down list can be dragged to the tab bar Delete tabs with a small X next to the tab name Add tabs with a + icon to the right of the last tab I already have a tab bar working that does 4 and 6. I found a Paging Tab Plugin which is pretty cool, but works differently. Does anyone know of plugins or techniques that would help me accomplish the above? My thought is to not really make the More tab a real tab, but just an object that looks like a tab. I'd add logic to the tabs.add method to calculate if another tab can fit. If it can't, then I would add the details of the tab to my separate "More" list. There'd be a fair amount of effort to get this all working, so if there are any plugins that would help, I'd love to hear about them.

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  • Problem resolving a generic Repository with Entity Framework and Castle Windsor Container

    - by user368776
    Hi, im working in a generic repository implementarion with EF v4, the repository must be resolved by Windsor Container. First the interface public interface IRepository<T> { void Add(T entity); void Delete(T entity); T Find(int key) } Then a concrete class implements the interface public class Repository<T> : IRepository<T> where T: class { private IObjectSet<T> _objectSet; } So i need _objectSet to do stuff like this in the previous class public void Add(T entity) { _objectSet.AddObject(entity); } And now the problem, as you can see im using a EF interface like IObjectSet to do the work, but this type requires a constraint for the T generic type "where T: class". That constrait is causing an exception when Windsor tries to resolve its concrete type. Windsor configuration look like this. <castle> <components> <component id="LVRepository" service="Repository.Infraestructure.IRepository`1, Repository" type="Repository.Infraestructure.Repository`1, Repository" lifestyle="transient"> </component> </components> The container resolve code IRepository<Product> productsRep =_container.Resolve<IRepository<Product>>(); Now the exception im gettin System.ArgumentException: GenericArguments[0], 'T', on 'Repository.Infraestructure.Repository`1[T]' violates the constraint of type 'T'. ---> System.TypeLoadException: GenericArguments[0], 'T', on 'Repository.Infraestructure.Repository`1[T]' violates the constraint of type parameter 'T'. If i remove the constraint in the concrete class and the depedency on IObjectSet (if i dont do it get a compile error) everything works FINE, so i dont think is a container issue, but IObjectSet is a MUST in the implementation. Some help with this, please.

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  • How do I create a named temporary file on windows in Python?

    - by Chris B.
    I've got a Python program that needs to create a named temporary file which will be opened and closed a couple times over the course of the program, and should be deleted when the program exits. Unfortunately, none of the options in tempfile seem to work: TemporaryFile doesn't have a visible name NamedTemporaryFile creates a file-like object. I just need a filename. I've tried closing the object it returns (after setting delete = False) but I get stream errors when I try to open the file later. SpooledTemporaryFile doesn't have a visible name mkstemp returns both the open file object and the name; it doesn't guarantee the file is deleted when the program exits mktemp returns the filename, but doesn't guarantee the file is deleted when the program exits I've tried using mktemp1 within a context manager, like so: def get_temp_file(suffix): class TempFile(object): def __init__(self): self.name = tempfile.mktemp(suffix = '.test') def __enter__(self): return self def __exit__(self, ex_type, ex_value, ex_tb): if os.path.exists(self.name): try: os.remove(self.name) except: print sys.exc_info() return TempFile() ... but that gives me a WindowsError(32, 'The process cannot access the file because it is being used by another process'). The filename is used by a process my program spawns, and even though I ensure that process finishes before I exit, it seems to have a race condition out of my control. What's the best way of dealing with this? 1 I don't need to worry about security here; this is part of a testing module, so the most someone nefarious could do is cause our unit tests to spuriously fail. The horror!

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  • UIViewerTableViewController.m:15: error: expected identifier before '*' token

    - by Aaron Levin
    I am new to objective-c programming. I come from a C# background. I am having problems with the following code I am writing for a proof of concept for an iPhone App: I am getting a number of compile errors but I think they are all due to the first error (could be wrong) - error: expected identifier before '*' token (@synthesize *lists; in the .m file) I'm not sure why my code is showing up the way it is in the view below the editor..hmm any way, any help would be appreciated. .m file // // Created by Aaron Levin on 4/19/10. // Copyright 2010 RonStan. All rights reserved. // import "UIViewerTableViewController.h" @implementation UIViewerTableViewController @synthesize *lists; @synthesize *icon; (void)dealloc { [Lists release]; [super dealloc]; } pragma mark Table View Methods //Customize number of rows in table view (NSInteger)tableView:(UITableView *) tableView numberOfRowsInSection: (NSInteger) section{ return self.Lists.Count; } //Customize the appearence of table view cells (UITableViewCell *) tableView(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *) indexPath{ static NSString *CellIdentifier = @"Cell"; UITableView *Cell = [tablevView dequeueReusableCellWithIdentifier:CellIdentifier]; if(cell == nil){ cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease]; } cell.textLabel.text = [[self.Lists objectAtIndex:indexPath.row] retain]; cell.imageView = self.Icon; cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator; } @end .h file // // UIMyCardsTableViewController.h // MCS ProtoType v0.1 // // Created by Aaron Levin on 4/19/10. // Copyright 2010 RonStan. All rights reserved. // import @interface UIViewerTableViewController : UITableViewController { NSArray *lists; UIImage *icon; } @property (nonatomic,retain) NSArray *lists; @property (nonatomic,retain) UIImage *icon; @end

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  • Flex 3 : UIComponent.addChild issue

    - by Frank
    Hello SOers, I've run into a nice problem with the UIComponent.addChild(...) function. First of all, I'm using ESRI Api for Flex. In this API you find a class called Graphic that inherits UIComponent. Basically, I'm trying to add, as a child, a Graphic 'g' to another graphic 'parent'. So that when you delete the 'parent' graphic the 'g' graphic deletes as well. private function writeMeasurements(parent:Graphic):void { var g:Graphic; if(parent.geometry.extent != null) g = new Graphic(parent.geometry.extent.center); else g = new Graphic(parent.geometry); g.initialize(); g.name = UIDUtil.createUID(); g.symbol = txtSym; graphicsLayer.add(g); parent.addChild(g); } graphicsLayer class This code actually runs pretty fine. The problem is after... it's like if the addChild function was asynchronious. This is the error I get : TypeError: Error #1009: Il est impossible d'accéder à la propriété ou à la méthode d'une référence d'objet nul. at com.esri.ags::Graphic/updateDisplayList()[C:\checkout\flex_api\api\src\com\esri\ags\Graphic.as:346] at mx.core::UIComponent/validateDisplayList() at mx.managers::LayoutManager/validateDisplayList() at mx.managers::LayoutManager/doPhasedInstantiation() at Function/http://adobe.com/AS3/2006/builtin::apply() at mx.core::UIComponent/callLaterDispatcher2() at mx.core::UIComponent/callLaterDispatcher() I know this is a very specific question, but I think you guys are the BEST! Thanks.

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  • WPF Repeater (like) control for collection source??

    - by Sonic Soul
    I have a WPF DataGrid bound to ObservableCollection. Each item in my collection has Property which is a List. In my row details pane, i would like to write out formatted textblocks for each item in this collection. The end result would be something equivalent to: <TextBlock Style="{StaticResource NBBOTextBlockStyle}" HorizontalAlignment="Right"> <TextBlock.Inlines> <Run FontWeight="Bold" Text="{Binding Path=Exchanges[0].Name}" /> <Run FontWeight="Bold" Text="{Binding Path=Exchanges[0].Price}" /> <LineBreak /> <Run Foreground="LightGray" Text="{Binding Path=Exchanges[0].Quantity}" /> </TextBlock.Inlines> </TextBlock> <TextBlock Style="{StaticResource NBBOTextBlockStyle}"> <TextBlock.Inlines> <Run FontWeight="Bold" Text="{Binding Path=Exchanges[1].Name}" /> <Run FontWeight="Bold" Text="{Binding Path=Exchanges[1].Price}" /> <LineBreak /> <Run Foreground="LightGray" Text="{Binding Path=Exchanges[1].Quantity}" /> </TextBlock.Inlines> </TextBlock> and so on 0-n times. I've tried using ItemsControl for this: <ItemsControl ItemsSource="{Binding Path=Exchanges}"> <DataTemplate> <Label>test</Label> </DataTemplate> </ItemsControl> however, this appears to be only meant for more static sources, as it throws the following exception (collection is not altered after creation): ItemsControl Operation is not valid while ItemsSource is in use. Access and modify elements with ItemsControl.ItemsSource instead Is there another way to achieve this?

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  • SQL MIN in Sub query causes huge delay

    - by Spencer
    I have a SQL query that I'm trying to debug. It works fine for small sets of data, but in large sets of data, this particular part of it causes it to take 45-50 seconds instead of being sub second in speed. This subquery is one of the select items in a larger query. I'm basically trying to figure out when the earliest work date is that fits in the same category as the current row we are looking at (from table dr) ISNULL(CONVERT(varchar(25),(SELECT MIN(drsd.DateWorked) FROM [TableName] drsd WHERE drsd.UserID = dr.UserID AND drsd.Val1 = dr.Val1 OR (((drsd.Val2 = dr.Val2 AND LEN(dr.Val2) > 0) AND (drsd.Val3 = dr.Val3 AND LEN(dr.Val3) > 0) AND (drsd.Val4 = dr.Val4 AND LEN(dr.Val4) > 0)) OR (drsd.Val5 = dr.Val5 AND LEN(dr.Val5) > 0) OR ((drsd.Val6 = dr.Val6 AND LEN(dr.Val6) > 0) AND (drsd.Val7 = dr.Val7 AND LEN(dr.Val2) > 0))))), '') AS WorkStartDate, This winds up executing a key lookup some 18 million times on a table that has 346,000 records. I've tried creating an index on it, but haven't had any success. Also, selecting a max value in this same query is sub second in time, as it doesn't have to execute very many times at all. Any suggestions of a different approach to try? Thanks!

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