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• Best way to implement a data structure in PHP ?

  - by Double Gras

  Hi, I want to use some kind of data structure in PHP (5.2), mainly in order to not pollute the global namespace. I think about two approaches, using an array or a class. Could you tell me which approach is better ? Thanks $SQL_PARAMETERS = array ( 'server' => '127.0.0.1', 'login' => 'root'); class SqlParameters { const SERVER = '127.0.0.1'; const LOGIN = 'root'; } echo $SQL_PARAMETERS['server']; echo SqlParameters::SERVER;

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• How can i make a callback to accordion after form validation, to show errors

  - by Esger

  I have a very long form, which is divided into fieldsets which in turn are being shown or hidden, using the harmonica from jQuery UI. I am using form validation from jQuery as well, all newest versions. After submission and validation the user is redirected to the first erroneous field by $('myForm').validate(); But the containing harmonica fieldset has to be showed/opened with $('myForm').accordion('activate', index); as well, in order to show the field to the user. So how can I open the appropriate accordion fieldset after the form has been tried to submit? Is there a way to do it in a callback function after $('myForm').validate();

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• Query to get row from one table, else random row from another

  - by Jimmy

  tblUserProfile - I have a table which holds all the Profile Info (too many fields) tblMonthlyProfiles - Another table which has just the ProfileID in it (the idea is that this table holds 2 profileids which sometimes become monthly profiles (on selection)) Now when I need to show monthly profiles, I simply do a select from this tblMonthlyProfiles and Join with tblUserProfile to get all valid info. If there are no rows in tblMonthlyProfile, then monthly profile section is not displayed. Now the requirement is to ALWAYS show Monthly Profiles. If there are no rows in monthlyProfiles, it should pick up 2 random profiles from tblUserProfile. If there is only one row in monthlyProfiles, it should pick up only one random row from tblUserProfile. What is the best way to do all this in one single query ? I thought something like this select top 2 * from tblUserProfile P LEFT OUTER JOIN tblMonthlyProfiles M on M.profileid = P.profileid ORder by NEWID() But this always gives me 2 random rows from tblProfile. How can I solve this ?

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• Drupal, Views, Exposed filter: custom default selected tags

  - by Patrick

  hi I'm using Drupal, Views with a exposed filter (using taxonomy). My customer wants to set from back-end the default selected tags (in order to pre-filter the views content). In the exposed filter settings, there is functionality. However, it doesn't work properly: when I click on "Select None" link (I'm using better_exposed_filter module) I expect none of the tags are selected, instead, the default configuration (default selected tags) are selected, so actually it doesn't work anymore. I hope it is clear. So, I was wondering if I can prepare a custom menu in which my user can check/uncheck the default selected tags in the view. thanks

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• Can a function defined in a bookmarklet be called from a page-level script?

  - by Soviut

  I have a bookmarklet that needs to open a new window/tab. In order to avoid the popup blocker, I need to call the window.open() method directly in the bookmarklet ie: at the browser-level. However, I want to keep the bookmarklet updatable by loading external Javascript files. To do this, the bookmarklet needs to append script nodes to the DOM. If i were to put window.open() code in one of these externally loaded scripts, the popup blocker would block it since its page-level. What I want to know is if I can create a wrapper function around window.open() in my bookmarklet, then call it from the externally loaded script? What is the scope and what are the permissions on a wrap such as this?

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• C++/g++: Concurrent programm

  - by phimuemue

  Hi, I got a C++ program (source) that is said to work in parallel. However, if I compile it (I am using Ubuntu 10.04 and g++ 4.4.3) with g++ and run it, one of my two CPU cores gets full load while the other is doing "nothing". So I spoke to the one who gave me the program. I was told that I had to set specific flags for g++ in order to get the program compiled for 2 CPU cores. However, if I look at the code I'm not able to find any lines that point to parallelism. So I have two questions: Are there any C++-intrinsics for multithreaded applications, i.e. is it possible to write parallel code without any extra libraries (because I did not find any non-standard libraries included)? Is it true that there are indeed flags for g++ that tell the compiler to compile the program for 2 CPU cores and to compile it so it runs in parallel (and if: what are they)?

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• How to replace all the blanks within square brackets with an underscore using sed?

  - by Ringerrr

  I figured out that in order to turn [some name] into [some_name] I need to use the following expression: s/\(\[[^ ]*\) /\1_/ i.e. create a backreference capture for anything that starts with a literal '[' that contains any number of non space characters, followed by a space, to be replaced with the non space characters followed by an underscore. What I don't know yet though is how to alter this expression so it works for ALL underscores within the braces e.g. [a few words] into [a_few_words]. I sense that I'm close, but am just missing a chunk of knowledge that will unlock the key to making this thing work an infinite number of times within the constraints of the first set of []s contained in a line (of SQL Server DDL in this case). Any suggestions gratefully received....

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• Intent flags to Login page redirect, killing previous Activities

  - by Christopher Francisco

  Basically I have a Service that at some points it will sync with the network in order to check if the token is still valid. if it isn't, it should redirect to the login screen (from the service) and if the user press the back button, it should NOT show the previous Activity but instead exit the app. I'm not asking how to hack onBackPressed, I already know how to do it. I'm asking how to accomplish this using the intent flags. So far I have tried the following: intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_NEW_TASK); Using the FLAG_ACTIVITY_NEW_TASK is mandatory because I'm calling startActivity() from a service (or at least thrown exception told me so), and using FLAG_ACTIVITY_CLEAR_TOP cause it was supposed to remove all previous activities from the stack, leaving only the new one. The issue is if I press back, I am still able to go to the previous Activity, which makes me think the combination of both flags are clearing the activities in the NEW task, not in the previous one I might be wrong on the reason, but it doesn't work. Any help will be appreciated, thanks

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• What do you name the "other" kind of view-model in an MVVM project?

  - by DanM

  With MVVM, I think of a view-model as a class that provides all the data and commands that a view needs to bind to. But what happens when I have a database entity object, say a Customer, and I want to build a class that shapes or flattens the Customer class for use in a data grid. For example, maybe this special Customer object would have a property TotalOrders, which is actually calculated using a join with a collection of Order entities. My question is, what do I call this special Customer class? In other situations, I'd be tempted to call it a CustomerViewModel, but I feel like "overloading" the notion of a view-model like this would be confusing in an MVVM project. What would you suggest?

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• Concatenating a Text in front of Individual Database Records with Tcl

  - by DFM

  Hello: In short, currently I am using the following code to pull records from multiple tables in a Sqlite Db and insert them in a single combobox ($SearchBar): set SrchVals1 [db eval {SELECT DISTINCT Stitle From Subcontract Order By Stitle ASC}] set SrchVals2 [db eval {... set SrchVals3 ... set SrchValsALL [concat $SrchVals1 $SrchVals2 $SrchVals3] $SearchBar configure -value $SrchValsAll For the variable "SrchVals1", I am trying to figure out a way to concatenate the text "Sub: " to each individual record in SrchVals1. For example, if SrchVals1 shows the following records in the combobox: First Title Second Title Third Title I would like to concatenate so that the records in the combobox look like this: Sub: First Title Sub: Second Title Sub: Third Title I understand that I might have to use a foreach statement; however, I am having no luck writing one that adds "Sub: " in front of each record, as opposed to one. This seems like something that should be pretty easy, but I cannot seem to figure it out. Does anyone know how I can achieve these results? Thank you, DFM

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• Using DynamicVertexBuffer in XNA 4.0

  - by Bevin

  I read about DynamicVertexBuffer, and how it's supposed to be better for data that changes often. I have a world built up by cubes, and I need to store the cubes' vertices in this buffer to draw them to the screen. However, not all cubes have vertices (some are air, which is transparent) and not all faces of the cubes need to be drawn either (they are facing each other), so how do I keep track of what vertices are stored where in the buffer? Also, certain faces need to be drawn last, namely the ones with transparency in them (like glass or leaves), and these faces also need to be drawn in a back-to-front order to not mess up the alpha blending. If all of these vertices are stored arbitrarily in this buffer, how do I know what vertices are where? Also, the number of vertices can change, but the DynamicVertexBuffer doesn't seem very dynamic to me, since I can't change it's size at all. Do I have to recreate the buffer every time I need to add or remove faces?

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• Get smallest date for each element in access query

  - by skerit

  So I have a table containing different elements and dates. It basically looks like this: actieElement beginDatum 1 1/01/2010 1 1/01/2010 1 10/01/2010 2 1/02/2010 2 3/02/2010 What I now need is the smallest date for every actieElement. I've found a solution using a simple GROUP BY statement, but that way the query loses its scope and you can't change anything anymore. Without the GROUP BY statement I get multiple dates for every actieElement because certain dates are the same. I thought of something like this, but it also does not work as it would give the subquery more then 1 record: SELECT s1.actieElement, s1.begindatum FROM tblActieElementLink AS s1 WHERE (((s1.actieElement)=(SELECT TOP 1 (s2.actieElement) FROM tblActieElementLink s2 WHERE s1.actieElement = s2.actieElement ORDER BY s2.begindatum ASC)));

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• MySQL: How to consume/discard the result of a query?

  - by GetFree

  I have a stored procedure which executes an optimize table statement for every table in a DB. Those optimize table statements are prepared statements of course (they have to be built at runtime) and I need to call that procedure from PHP using ext/mysql API. Unfortunately, ext/mysql does't support doing such thing because optimize table returns a result set and in order to handle that, the new mysql protocol is required, which is supported by the "new" ext/mysqli API. Well... there are several things I dont have control over, so it's not in my posibilities to upgrade to ext/mysqli any time soon, nor can I implement the procedure as PHP code rather than sql code. So I thought if it would be possible somehow to consume/discard the result of optimize table inside the stored procedure so that ext/mysql doesn't complain about it. One thing to consider is that since the optimize table statements are prepared statements, you can't use a cursor over them.

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• Retrieve web user's Identity outside of request scope

  - by Kendrick

  I have an ASP.NET app that logs Audit reports using nHibernate's IPreUpdateListener. In order to set the current user in the Listener events, I was using System.Security.Principal.WindowsIdentity.GetCurrent(). This works fine when debugging on my machine, but when I move it to the staging server, I'm getting the ASP.NET process credentials, not the requesting user. In the ASP.NET page, I can use Request.LogonUserIdentity (which works fine since I'm using integrated authentication), but how do I reference this user directly without having to pass it directly to my event? I don't want to have to pass this info through the pipeline because it really doesn't belong in the intermediate events/calls.

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• Best practices: displaying text that was input via multi-line text box

  - by chris

  I have a multi-line text box. When users simply type away, the text box wraps the text, and it's saved as a single line. It's also possible that users may enter line breaks, for example when entering a "bulleted" lists like: Here are some suggestions: - fix this - remove that - and another thing Now, the problem occurs when I try to display the value of this field. In order to preserve the formatting, I currently wrap the presentation in <pre> - this works to preserve user-supplied breaks, but when there's a lot of text saved as a single line, it displays the whole text block as single line, resulting in horizontal scrolling being needed to see everything. Is there a graceful way to handle both of these cases?

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• How to load an entity by a key other than primary key?

  - by stacker

  In a customized servlet (seam 2.1.2) this works fine TableNameHome tableNameHome = (TableNameHome) Component.getInstance( "tableNameHome " ); tableName entity = tableNameHome.getInstance(); entity.setXXX(); tableNameHome.persit(); However this one fails: entityManager = tableNameHome .getEntityManager(); Query query = entityManager.createQuery( "SELECT b FROM tablename b WHERE b.box_id = :key2nd" ); query.setParameter( "key2nd", value); List results = query.getResultList(); and leads to this error message: org.hibernate.hql.ast.QuerySyntaxException: tablename is not mapped [SELECT b FROM tablename b WHERE b.key2nd = :key2nd] In EJB 2.1 I could implement other finder-methods. EntityHome.find() searches only by primary key. What do I need to do in order to query by a different criteria than primary key?

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• drop-down combo box-like functionality for queries.

  - by Frank Developer

  Is it possible to provide the following type of fuctionality with informix client tools? As the user types the first two characters of a name, the drop-down list is empty. At the third character, the list fills with just the names beginning with those three characters. At the fourth character, MS-Access completes the first matching name (assuming the combo's AutoExpand is on). Once enough characters are typed to identify the customer, the user tabs to the next field. The time taken to load the combo between keystrokes is minimal. This occurs once only for each entry, unless the user backspaces through the first three characters again. If your list still contains too many records, you can reduce them by another order of magnitude by changing the value of constant conSuburbMin from 3 to 4.

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• Can I safely bind to data on multi-threaded applications?

  - by Paul

  Hi everyone, I'm trying to solve a classic problem - I have a multi-threaded application which runs some processor-intensive calculations, with a GUI interface. Every time one of the threads has completed a task, I'd like to update a status on a table taskID | status I use DataGridView and BindingList in the following way: BindingList<Task> tasks; dataGridView.DataSource = tasks public class Task : INotifyPropertyChanged { ID{get;} Status{get;set;} } Can a background thread safely update a task's status? and changes will be seen in the correct order in the GUI? Second Question: When do I need to call to PropertyChanged? I tried running with and without the call, didn't seem to bother.. Third Question: I've seen on MSDN that dataGridView uses BindingSource as a mediator between DataGridView.DataSource and BindingList Is this really necessary?

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• Excel - Programming Cells

  - by Andrew

  I just started programming in Excel and I have a problem figuring some code out. I have created a work schedule in Excel with lists in order to add new people. I wanted to create a macro in which the user inputs a value in a cell (I chose B3) and depending on that 'start time' in cell B3, the headers for the lists all change to correspond with that starting time. For example: B3 says 5:00 am. All the headers will follow with: 5:00 am, 6:00 am, 7:00 am, etc. of course the headers will move at some point so I'm wondering how do you point to a cell that moves too?

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• Fatal error: Cannot use string offset as an array

  - by learner

  Array ( [0] = Array ( [auth_id] = 1 [auth_section] = Client Data Base [auth_parent_id] = 0 [auth_admin] = 1 [sub] = Array ( [0] = Array ( [auth_id] = 2 [auth_section] = Client Contact [auth_parent_id] = 1 [auth_admin] = 1 ) ) ) [1] => Array ( [auth_id] => 6 [auth_section] => All Back Grounds [auth_parent_id] => 0 [auth_admin] => ,4 [sub] => Array ( [0] => Array ( [auth_id] => 7 [auth_section] => Edit Custom [auth_parent_id] => 6 [auth_admin] => 1 ) ) ) [2] => Array ( [auth_id] => 20 [auth_section] => Order Mail [auth_parent_id] => 0 [auth_admin] => 1 [sub] => ) } When I process the sub inner array it shows this error how can I avoid that :)

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• What's in-memory database technology that do realtime materialized view?

  - by KA100

  What I'm looking for is something like materialized views in front-end that shows my data in diffident ways without full recalculation. let's say I have stock watcher with many front-end views and dashborads some based on aggregation, order by or just filter with different criteria defined realtime by user. Now, I receive online record updates from some webservice and it's not like "data warehouse" every single record can be updated any time and it actually happens every second. Is there any technology can help me in such I create something like materialized view and it's update it without doing full recalculation every time data changed. Thank you.

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• Get all variables of javascript in JAVA

  - by Parhs

  Hello... I am using rhino and Scripting for the Java Platform in order to allow the user extend my application. However the user can write some cases eg (ASTO.value>440) || (ASTO.bellowNormal) etc... The problem is that before running the script from my JAVA application using ScriptEngine i want to get the names of all the variables! Because i should know which variables are required for the script to run... I know that a regular expression would do the job but i amnt sure... Please i somebody could help me figure out the java regexp to get the variables i would really appriciate it..

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• How to get the line number an xml element is on via the Java w3c dom api

  - by Benju

  Is there a way to lookup the line number that a given element is at in an xml file via the w3c dom api? My use case for this is that we have 30,000+ maps in kml/xml format. I wrote a unit test that iterates over each file found on the hard drive (about 17GB worth) and tests that it is parseable by our application. When it fails I throw an exception that contains the element instance that was considered "invalid". In order for our mapping department (nobody here knows how to program) to easily track down the typo we would like to log the line number of the element that caused the exception. Can anybody suggest a way to do this? Please note we are using the W3C dom api included in the Android 1.6 SDK.

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• Porting VS2005 project to VS2008

  - by lucavb

  i need to port a VS2005 Project (.NET2) to a VS2008 (.NET3.5) (or to VS2010 .NET4 not yet defined). The project is composed by: resources and configuration files (VS project files, like: .settings .vbproj .myapp .config .xconfig .Designer.vb); a lot of VB codes; xsc, xsd, xss and xsx files; a lot of Crystal reports for VS2005; graphical resources. The application take data in order to generate reports from more DB SQL Server 2005 istances. What is the best way to approach to a migration activity? Is there an internal migration tool? If yes, what's the best practice to use it? Which kind of files will be automatically ported to the new VS version? Thanks in advance for all the provided information

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• Magento product name

  - by Kudja

  I wish to change product name when someone adding this product to cart. All product are simple. Magento v. 1.7.0.0 If I try to change it's name in Mage_Checkout_Model_Cart - addProduct method in that way for example: if ($request->getMyParam()) { $product->setName($product->getName() . ' (' . $request->getMyParam() . ')'); } than I have message that I added product with MyParam but in cart really I have simple product name from catalog The same thing happent when I trying to do same thing in Mage_Sales_Model_Quote - addProductAdvanced method So where I must change this name to save this name in cart and then in order details too. Or maybe I can create some additional custom options on he fly when I adding to cart or saving product. Thnx for all who can help with this

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