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• update/validate embedded forms before saving in symfony

  - by Stanislav Palatnik

  I would like to validate an embedded form field before it gets saved in the database. Currently it will save an empty value into the database if the form field is empty. I'm allowing empty fields, but I want nothing inserted if the form field is empty. Also quick question, how to alter field values before validating/saving an embedded form field? $this-form-getObject works in the action, but $this-embeddedForm-getObject says object not found

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• Javascript - how to replace a sub-string?

  - by Jangwenyi

  This is a simple one. I want to replace a sub-string with another sub-string on client-side using Javascript. Original string is 'original READ ONLY' I want to replace the 'READ ONLY' with 'READ WRITE' Any quick answer please? Possibly with a javascript code snippet...

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• html5: Input Field Using @fontface, non-system fonts. Is this possible.

  - by pfunc

  Quick question, is it possible to have an input field in a form use a non-system font in html5 and css3? So if someone types in the form field the text could be something like gotham?

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• Simple 2-color differential image compression

  - by Groo

  Is there an efficient, quick and simple example of doing differential b/w image compression? Or even better, some simple (but lossless) streaming technique which could accept a number of frames as input? I have a simple b/w image (320x200) stream, displaying something similar to a LED display, which is updated about once a second using AJAX. Images are pretty similar most of the time, so if I subtracted them, result would compress pretty well (even with simple RLE). Is something like this available?

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• ORM/ADO.NET data services for asp.net-mvc web application..

  - by chandru_cp

  As i am a beginner to asp.net-mvc which should i use ORM/ADO.NET data services.... As far as i see all the examples are only with ORM support.... So experts please guide me on this...

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• Android app google maps showing grey tiles and not map!

  - by Capsud

  Hi, I followed this guide here perfectly and have gone through it again but when I run the program on my google avd the page loads but only grey tiles appear and it doesn't show a map which it should. Does anyone have any ideas? Thanks

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• General method for making sub arrays around a particular element

  - by JJ

  What is a quick, elegant way of using MatLab to form a subarray around a particular element? Element are selected randomly from the data, so you can't take a subarray in the normal way (it has to be generalized for the elements that are selected). What I mean is, forming an array for example 5x5 or 7x7 or something, where the middle element is the one you want.

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• How to load jQm modal on page load?

  - by Wazdesign

  Hi I am using jQm Window to load modal window. http://dev.iceburg.net/jquery/jqModal/#how i am trying to jqmShow Show jqModal element(s). $('#dialog').jqmShow(); $('.dialogs').jqmShow(); but it throws some JS error, but it does not load on the page load, please guide me for the same. TIA

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• Installation of Jetty into Eclipse

  - by Claus Jørgensen

  Hi I've had Jetty recommended as a good container for fast and simple development, in my case, Java Server Faces. I wish to use it with my Eclipse IDE (Version: 3.4.1), but quite frankly, can't figure out how. I've tried various outdated plugins, only with large amounts of errors in return, so I'm hoping someone could guide me from downloading the right version to installing it, and being able to press "RUN", and see a simple Hello World in JSP/JSF work. Cheers.

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• Is it worth using https if you are not doing financial transactions?

  - by Scarface

  Hey just a quick question for any experts out there. I have a site that lets users interact through messages and to sign up you just make a username and password, verify your age, and optionally, add an email. There isn't really any sensitive information I suppose. Is it worth using https. Will it prevent session hi jacking and will it hinder performance?

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• Change the precision of all decimal columns in every table in the database

  - by Jon

  Hi all, I have a rather large database that has alot of decimal columns in alot of tables, the customer has now changed their mind and wants all the numbers (decimals) to have a precision of 3 d.p. instead of the original two. Is there any quick way of going through all the tables in a database and changing any decimal column in that table to have 3.d.p instead of 2 d.p? The db is on sql 2005. Any help would be great.

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• How to gather information on windows shell programming?

  - by terrani

  Hi, I am very interested in learning windows shell programming. So...I searched for books on the amazon.com. I see that books on the amazon.com are out of date. Most of books are published before 2005. I googled about it and found many tips and tricks, but not step by step guide. Where do I get started?

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• how to add Continue String Sign like "..." in TextView?

  - by UMMA

  if i add string in a TextView for example, this is my string and TextView max length is 4 It should look like in activity this... or t... that means string continue sign at the end of assigned string if string size is bigger than Max length. Can any one guide me what should i do or i will have to manually add "..." at the end of string through programming. Any help would be appreciated.

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• "wait window nowait" in .NET

  - by EnriquitoPY

  Is there something similar to "wait window nowait" in Windows Forms (.NET VS2008) ? This is a commonly used sentence in Visual FoxPro for debugging purposes and "quick and dirty" thermometers.

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• Can I sort the tabs in Eclipse alphabetically?

  - by cringe

  Just a quick question: I'm using a lots of tabs in Eclipse and I wonder if there is a way to have them sorted alphabetically. Is there a settings I'm missing for years or a plugin that I'm unaware of?

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• Big O complexity

  - by Codenotguru

  what is Big Oh notation mean and when an algorithm has logarithmic complexity?? for example how is quick sort O(nlogn)???

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• Google App Engine datastore

  - by megala

  Hi i had created table with primarykey{groupname} in google app engine datastore as follows, //---------------coding-----------// @Entity @Table(name="Groups", schema="PUBLIC") public class Creategroup { @Id private String groupname; @Basic private String groupid; . . . } My doubt is I wnat to set groupname and groupid both as primary key is it possible.how ? Guide me thanks in advance

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• Obj-c categories in static library

  - by Vladimir

  Can you guide me how to properly link static library to iphone project. I use staic library project added to app project as direct dependency (target - general - direct dependecies) and all works OK, but categories. A category defined in static library is not working in app. So my question is how to add static library with some categories into other project? And in general, what is best practice to use in app project code from other projects?

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• Are GUIDs the ultimate ID?

  - by mafutrct

  I noticed some people don't bother having the usual incremented number as ID but instead simply generate a GUID. The advantages include: Quick and easy No need to keep track of previous IDs Guaranteed to be unique even across machines without knowledge of each other Some disadvantages are: Possibly performance bottleneck Uses a large number of bytes My understanding is that using a GUID is beneficial in most cases, except if optimization for time or space is an issue. Did I miss something? Or do you agree with this idea?

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• PL SQL Where Clause with Column/Field name being a datatype

  - by Dale

  Quick question playing with PL SQL it seems that the tables column was named as the data type NUMBER so trying to perform a query fails since the column is being recognized as a datatype instead of a column name. Anyone know how to get around this without modifying the schema?

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• Creating Outlook 2010 Add in for 64bit

  - by Grant

  Hi, does anyone know if there is a guide to creating an outlook add in for office 2010 that runs in 64bit mode? I have an add in that DOES work on in Outlook 2010 32bit but it doesn't appear in 64bit - in the add in section its set to disabled. I have tried to compile under different target CPU's but that hasn't helped..

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• C# : DBConnection.Open() timeout is too long.

  - by leo

  Hi, I'm trying to connect to a server that the user inputs. When the server doesn't exist, I'd like to give a quick feedback to the end-user so he can correct what he's typed. Is there any way to test if a server exists before trying to connect ? Thanks

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• ivy dependency on external JAR

  - by Misha Koshelev

  Dear All: I am battling with Ivy (I tried maven but had an event more difficult time setting up the JBoss repository for Hibernate). Quick question - I am using this wonderful package: http://ooweb.sourceforge.net/index.html Unfortunately, the JAR is only available through Sourceforge: http://sourceforge.net/projects/ooweb/files/ooweb/0.8.0/ooweb-0.8.0-bin.tar.gz/download Is there a way to get Ivy to download a specific JAR? For that matter, is it possible to do with Maven? Thank you! Misha

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• SQL Server 2008 and MySQL Daily Backups

  - by Tyler

  Is there a quick and easy way to backup both SQL Server 2008 and MySQL, all their databases? Right now I have a batch script that runs, but I have to manually add a database each and every time, and I'm sick of maintaining it. So I want to set it up to backup all SQL Server and then all MySQL, I dont care if its two different solutions, just want the ability to backup all the databases without having to type them in. Thank you.

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• CouchDB Find One not working

  - by Andrew

  I am a couchDB newbie and am doing the examples in the O'Reilly CouchDB guide. I have a problem using a view to retrieve a document by key: curl http://127.0.0.1:5984/basic/_design/example/_view/by_date?key="2009/01/15 15:52:20" gives the reply: curl: (52) Empty reply from server but just retrieving all rows: curl http://127.0.0.1:5984/basic/_design/example/_view/by_date gives me 3 rows including the specific row I am looking for: {"id":"hello-world","key":"2009/01/15 15:52:20","value":"Hello World"} why doesn't the key query work? I am using CouchDB version 0.10.0 on Ubuntu 9.10

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