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• Grails MySql processList

  - by Masiar Ighani

  Hello, i have a grails application with a webflow. I store my inner flow objects of interest in the converstaion scope. After entering and leaving the flow a few times, i see that the single user connected to the DB (MySql) generates a lot of threads on the MySql Server which are not released. The processlist in mysql show me the threads in sleeping mode and a netstat on the client shows me established connections to the mysql server. I assume the connections are held active and not released. But why is that? What do grails exactly do when entering and leaving a flow? Why are so many connections opened and not closed? Any help would be appreciated. regards, masiar

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• Stripping images from post teasers/excerpts in Wordpress

  - by Tom J Nowell

  In my theme I'm trying to display the excerpts or teasers of child pages, yet I do not want to display any images, I want image tags stripped out. Once I've gotten the teaser in all its html glory in a php variable, how do I strip out the img tags prior to using echo?

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• How to use JNDI to obtain a new Stateful Session Bean, in EJB3?

  - by FarmBoy

  I'm trying to use JNDI to obtain a new Stateful Session Bean in a servlet (as a local variable). My doGet() method has the following: Bean bean = (Bean) new InitialContext().lookup("beanName"); I've tried including java:comp/env but all of my attempts have led to naming exceptions. I'm attempting to bind the bean in the @Stateful annotation, using various guesses like @Stateful(name="beanName") and @Stateful(mappedName="beanName")

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• Zend Form: How to pass parameters into the constructor?

  - by Andrew

  I'm trying to test my form. It will be constructing other objects, so I need a way to mock them. I tried passing them into the constructor... class Form_Event extends Zend_Form { public function __construct($options = null, $regionMapper = null) { $this->_regionMapper = $regionMapper; parent::__construct($options); } ...but I get an exception: Zend_Form_Exception: Only form elements and groups may be overloaded; variable of type "Mock_Model_RegionMapper_b19e528a" provided What am I doing wrong?

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• Can i use FinalBuilder to set the name of a self extracting exe at Runtime?

  - by Kev Hunter

  When using FinalBuilder to package our website, I would like it to be able to set the filename when it creates the file set with a variable somewhere else. So the filename would be Website 1.4.exe Has anyone got this working?

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• LINQ aggregate / SUM grouping problem

  - by Chrissi

  I'm having trouble getting my head around converting a traditional SQL aggregate query into a LINQ one. The basic data dump works like so: Dim result = (From i As Models.InvoiceDetail In Data.InvoiceDetails.GetAll Join ih As Models.InvoiceHeader In Data.InvoiceHeaders.GetAll On i.InvoiceHeaderID Equals ih.ID Join p As Models.Product In Data.Products.GetAll On i.ProductID Equals p.ID Join pg As Models.ProductGroup In Data.ProductGroups.GetAll On p.ProductGroupID Equals pg.ID Join gl As Models.GLAccount In Data.GLAccounts.GetAll On pg.GLAccountSellID Equals gl.ID Where (gl.ID = GLID) Select ih.Period,i.ExtendedValue) What I need to really be getting out is ih.Period (a value from 1 to 12) and a corresponding aggregate value for i.ExtendedValue. When I try to Group ih I get errors about i being out of scope/context, and I'm not sure how else to go about it.

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• Boost Thread Specific Storage Question (boost/thread/tss.hpp)

  - by Hassan Syed

  The boost threading library has an abstraction for thread specific (local) storage. I have skimmed over the source code and it seems that the TSS functionality can be used in an application with any existing thread regardless of weather it was created from boost::thread --i.e., this implies that certain callbacks are registered with the kernel to hook in a callback function that may call the destructor of any TSS objects when the thread or process is going out of scope. I have found these callbacks. I need to cache HMAC_CTX's from OpenSSL inside the worker threads of various web-servers (see this, detailed, question for what I am trying to do), and as such I do not controll the life-time of the thread -- the web-server does. Therefore I will use the TSS functionality on threads not created by boost::thread. I just wanted to validate my assumptions before I started implementing the caching logic, are there any flaws in my logic ?

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• Use string as input to re.compile

  - by williamx

  I want to use a variable in a regex, like this: variables = ['variableA','variableB'] for i in range(len(variables)): regex = r"'('+variables[i]+')[:|=|\(](-?\d+(?:\.\d+)?)(?:\))?'" pattern_variable = re.compile(regex) match = re.search(pattern_variable, line) The problem is that python adds an extra backslash character for each backslash character in my regex string (ipython), and makes my regex invalid: In [76]: regex Out[76]: "'('+variables[i]+')[:|=|\\(](-?\\d+(?:\\.\\d+)?)(?:\\))?'" Any tips on how I can avoid this?

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• Disable MySQL general logging without restarting?

  - by shantanuo

  Can I disable general logging completely without restarting the server? Because, per the documentation: SET sql_log_bin = {0|1} Disables or enables binary logging for the current connection (sql_log_bin is a session variable) if the client has the SUPER privilege. The statement is refused with an error if the client does not have that privilege. Can I enable/disable general log without restarting MySQL?

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• Drupal: Views titles

  - by stef

  I have a View that outputs a page. Under Basic Settings I set a "title". When I load the page, I see that title as the page title (at top of the browser) - all good. How can I print this value out in the "Display output" .tpl file? The $title variable doesn't seem to hold any value here. Do I need to use a preprocess function? Thanks

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• When is the "short" data type still used?

  - by kiwicptn

  What can do (these days ;-p) with a variable of the short primitive type (16 bits signed)? Any good reason to keep them around?

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• How to check whether your work on WP or WPMU ?

  - by justjoe

  right now, i use global variable $table_prefix to differ whether i work on WP or WPMU. I need this global for my plugin. But is there any better way to check whether your pluggin is working on wp or wpmu ? any suggestion will be great

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• How do you use Linq2Sql in your applications ?

  - by this. __curious_geek

  I'm recently migrating to Linq2Sql and all my future projects would be done in Linq2Sql. Having said that, I researched a lot on how to properly plug-in Linq2Sql in application design. what to put at what layer ? Should I use DTOs over Linq2Sql entities ? I did not find any rock-solid material that really talked about one single thing and everyone had their own opinions and I found all of them justified right from their arguments. I'm looking forward to your ideas on how to integrate/use Linq2Sql in projects. My priority is maintenance[it should be maintenable and when multiple people work on same project] and scalabilty [it should have scope of evolution]. Thanks.

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• VPATH in makefile issue.

  - by Ashok Patil

  Hello, I have a question related to VPATH. I'm playing around with make files and the VPATH variable. Basically, I'm grabbing source files from a few different places (specified by the VPATH), and trying to compile them into the another directory ( $CURDIR/OBJ/ ) using simply a list of .o-files that I want. Can I create .o's in any another directory other than current dir when using VPATH??

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• Problem of instanceOf

  - by eric2323223

  Hi, could anyone tell me why this code won't compile? public boolean isOf(Class clazz, Object obj){ if(obj instanceof clazz){ return true; }else{ return false; } } Why I can't pass a class variable to instanceOf? Thanks in advance.

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• Equivalent of running $_SERVER['DOCUMENT_ROOT'] when running php in terminal

  - by Matt

  Hey all, I was wondering if there is some variable that will return what $_SERVER['DOCUMENT_ROOT'] returns when I call PHP like this: ./somescript If not, how do people get around this case? I'm looking to be able to call the same script (a template compiler) in both the web browser and the terminal. Thanks! Matt Mueller

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• Java / Spring / JSP - how to output value added using ModelAndView.addObject

  - by Jon morgan

  Hi, I have the following code in my controller final ModelAndView m = new ModelAndView(); m.addObject("date", "15" ); In my view I have been able to output this by doing ${date} However how can I print it out using out.print or assign it to a new variable e.g. <% out.print( ${date} ) %> Thanks

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• how big should your controllers be in asp.net-mvc

  - by ooo

  i see the new feature of areas in asp.net-mvc 2. it got me thinking. why would i need this? i did some reading on the use cases and it came down to a specific point to me around how big and how broad scope should my controllers should be? should i try to have many little controllers? one big controller? how do people determine the sweet spot for number of controllers? i think mine are maybe too large (which had me questioning areas in the first place as maybe my controller name should really be an area and have a number of smaller controllers)

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• ruby on rails, searchlogic and refactoring

  - by JohnMerlino

  Hey all, I'mt not too familiar with searchlogic plugin for rails (I did view the railscasts but wasn't helpful in relation to the specific code below). Can anyone briefly describe how it is being used in the three methods below? Thanks for any response. def extract_order @order_by = if params[:order].present? field = params[:order].gsub(".", "_") field = field.starts_with?('-') ? 'descend_by_'+field[1..-1] : 'ascend_by_'+field field.to_sym else # Workaround 'searchlogic'.to_sym end end def find_resources @search_conditions = params[:search_conditions] || {} # See http://www.binarylogic.com/2008/11/30/searchlogic-1-5-7-complex-searching-no-longer-a-problem/ @resources = @resource_model.send(@order_by).searchlogic(:conditions => @search_conditions) end def apply_filters f = filter_by f.each do |filter_field| filter_constraints = params[filter_field.to_sym] if filter_constraints.present? # Apply searchlogic's scope @resources.send(filter_field,filter_constraints) end end end

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• how can I prevent my SESSION to be overwritten on pageLoad of my MasterPage

  - by Darkyo

  I'm new to asp world, and I have to keep my new job :) Switching form php to asp.net 3.5 (never used before). What would be the best practice for storing a SESSION variable in my project ? How can I prevent my SESSION to be overwritten if my initialisation code is in the onPageLoad method of my MasterPage ? My variables keeps beeing overwritten, please someone help me and tell me if there is any other solution than dealing with this pageLoad problem. Thank you all

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• XSLT Attribute not being added

  - by shaunhare.co.uk

  Trying to mark radio inputs as selected with XSLT 1.0 using the below xslt code but this does not produced the desired result desrired result <input type="radio" value="available" title="email" selected="selected" /> Actual output <input type="radio" value="available" title="email" selected /> Anyone any ideas why not please? XSLT <xsl:variable name="selected">selected</xsl:variable> <xsl:for-each select="item"> <tr> <td><xsl:value-of select="title" /></td> <td> <input type="radio" value="available" > <xsl:attribute name="name"> <xsl:value-of select="title" /> </xsl:attribute> <xsl:if test="category='available'"> <xsl:attribute name="selected"> <xsl:value-of select="$selected"/> </xsl:attribute> </xsl:if> </input> </td> <td> <input type="radio" value="unavailable" > <xsl:attribute name="name"> <xsl:value-of select="title" /> </xsl:attribute> <xsl:if test="category='unavailable'"> <xsl:attribute name="selected"> <xsl:value-of select="$selected"/> </xsl:attribute> </xsl:if> </input> </td> <td> <input type="radio" value="warning" > <xsl:if test="category='warning'"> <xsl:attribute name="selected"> <xsl:value-of select="$selected"/> </xsl:attribute> <xsl:attribute name="name"> <xsl:value-of select="title" /> </xsl:attribute> </xsl:if> </input> </td> </tr> </xsl:for-each>

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• Suppress warnings in Zend Studio

  - by Olaseni

  In Eclipse writing Java, it's easy to suppress warnings on some scopes, by annotating a method or variable within the IDE. Is it possible to suppress warnings at scopes while writing PHP within Zend Studio 7.0?

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• How do I change the on-screen keyboard for a PasswordBox

  - by McKay

  I have a box that I want to take a password of only numbers (like an ATM-card PIN), how is the best way to do that? Requirements: Password (with the hidden numbers) Typing digits as the default (only?) keyboard What I've tried: I thought that InputScopes would be the way to go, but I can't set the input scope on a password box. I even tried putting the password InputScope on a normal TextBox, but that didn't mask the appearance of the characters in the text box. Suggestions?

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• How to change the probability distribution of SystemVerilog random variables?

  - by krupan

  This is for SystemVerilog. I know you can specify weights for values, or ranges of values, in the set of values that a random variable chooses from, but what if you want a nice Gaussian distribution? How do you write that kind of constraint?

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• Instantiating a context in LINQ to Entities

  - by Jagd

  I've seen two different manners that programmers approach when creating an entity context in their code. The first is like such, and you can find it all over the MSDN code examples: public void DoSomething() { using TaxableEducationEntities context = new TaxableEducationEntities()) { // business logic and whatever else } } The second is to create the context as a private attribute in some class that encapsulates your business logic. So you would have something like: public class Education_LINQ { private TaxableEducationEntities context = new TaxableEducationEntities(); public void DoSomething() { var result = from a in context.luAction select a; // business logic and whatever else } } Which way is more efficient? Assume that you have two methods, one called DoSomething1() and another called DoSomething2(), and both methods incorporate the using statement to open the context and do whatever with it. Were you to call one method after the other, would there be any superfluous overhead going on, since essentially both methods create the context and then clean it up when they're done? As opposed to having just one private attribute that is created when a class object is instantiated, and then in turn cleaned up when the object goes out of scope?

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