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• Only show items owned by the currently logged in user in category list view

  - by jalbasri

  I'd like to be able to provide a "Category List" view that only shows Articles that the currently logged in user owns. Is there somewhere I can edit the query used to populate the Category List view or an extension that provides this functionality. Thank you for any help you can provide. -J. Thank you for your answer. I've written the plugin. Instead of passing in an array of Articles the onContentBeforeDisplay function is called for every article and an ArrayObject of the single article gets passed in. I've been able to identify the articles I want not to be displayed but still cannot get them not to display. The $params variable has values such as "list_show_xxx" but I can't seem to change or access them. here is a var_dump($params): object(Joomla\Registry\Registry)#190 (1) { ["data":protected]=> object(stdClass)#250 (83) { ["article_layout"]=> string(9) "_:default" ["show_title"]=> string(1) "1" ["link_titles"]=> string(1) "1" ["show_intro"]=> string(1) "1" ["info_block_position"]=> string(1) "1" ["show_category"]=> string(1) "1" ["link_category"]=> string(1) "1" ["show_parent_category"]=> string(1) "0" ["link_parent_category"]=> string(1) "0" ["show_author"]=> string(1) "1" ["link_author"]=> string(1) "0" ["show_create_date"]=> string(1) "0" ["show_modify_date"]=> string(1) "0" ["show_publish_date"]=> string(1) "1" ["show_item_navigation"]=> string(1) "1" ["show_vote"]=> string(1) "0" ["show_readmore"]=> string(1) "1" ["show_readmore_title"]=> string(1) "1" ["readmore_limit"]=> string(3) "100" ["show_tags"]=> string(1) "1" ["show_icons"]=> string(1) "1" ["show_print_icon"]=> string(1) "1" ["show_email_icon"]=> string(1) "1" ["show_hits"]=> string(1) "1" ["show_noauth"]=> string(1) "0" ["urls_position"]=> string(1) "0" ["show_publishing_options"]=> string(1) "0" ["show_article_options"]=> string(1) "0" ["save_history"]=> string(1) "1" ["history_limit"]=> int(10) ["show_urls_images_frontend"]=> string(1) "0" ["show_urls_images_backend"]=> string(1) "1" ["targeta"]=> int(0) ["targetb"]=> int(0) ["targetc"]=> int(0) ["float_intro"]=> string(4) "left" ["float_fulltext"]=> string(4) "left" ["category_layout"]=> string(9) "_:default" ["show_category_heading_title_text"]=> string(1) "1" ["show_category_title"]=> string(1) "0" ["show_description"]=> string(1) "0" ["show_description_image"]=> string(1) "0" ["maxLevel"]=> string(1) "1" ["show_empty_categories"]=> string(1) "0" ["show_no_articles"]=> string(1) "1" ["show_subcat_desc"]=> string(1) "1" ["show_cat_num_articles"]=> string(1) "0" ["show_base_description"]=> string(1) "1" ["maxLevelcat"]=> string(2) "-1" ["show_empty_categories_cat"]=> string(1) "0" ["show_subcat_desc_cat"]=> string(1) "1" ["show_cat_num_articles_cat"]=> string(1) "1" ["num_leading_articles"]=> string(1) "1" ["num_intro_articles"]=> string(1) "4" ["num_columns"]=> string(1) "1" ["num_links"]=> string(1) "4" ["multi_column_order"]=> string(1) "0" ["show_subcategory_content"]=> string(1) "0" ["show_pagination_limit"]=> string(1) "1" ["filter_field"]=> string(5) "title" ["show_headings"]=> string(1) "1" ["list_show_date"]=> string(1) "0" ["date_format"]=> string(0) "" ["list_show_hits"]=> string(1) "1" ["list_show_author"]=> string(1) "1" ["orderby_pri"]=> string(5) "order" ["orderby_sec"]=> string(5) "rdate" ["order_date"]=> string(9) "published" ["show_pagination"]=> string(1) "2" ["show_pagination_results"]=> string(1) "1" ["show_feed_link"]=> string(1) "1" ["feed_summary"]=> string(1) "0" ["feed_show_readmore"]=> string(1) "0" ["display_num"]=> string(2) "10" ["menu_text"]=> int(1) ["show_page_heading"]=> int(0) ["secure"]=> int(0) ["page_title"]=> string(16) "Non-K2 News List" ["page_description"]=> string(33) "Bahrain Business Incubator Centre" ["page_rights"]=> NULL ["robots"]=> NULL ["access-edit"]=> bool(true) ["access-view"]=> bool(true) } } I've tried $params-data-list_show_author = "0" but then the page doesn't load, problem is accessing and changing the variables in $param. So the last step is to figure out how not to show the article. Any ideas?

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• SQL 2008 GUID column is all 0's

  - by Andy Evans

  I'm hoping this is a simple goof I did on my end ... I have a table in my database set up like so: column name: widget_guid data type: uniqueidentifier allow nulls: false default value: newid() identity: false row guid: true When records are created (via LINQ to SQL) that the values in this field are formatted as a GUID but contain all 0's My assumption was that when a new record was created, that a guid would be autogenerated for that column, much like an auto-incrementing row id. Is this not true? Any help would be greatly appreciated. Thanks.

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• WPF: how to make normal listbox left-drag-select behavior use middle mouse instead?

  - by Scott Bilas

  I'm building a special listbox control that our designers want customized in some tweaky ways. One thing they want to see is that the middle button-drag does what the left button-drag normally does (we are repurposing left-drag to other things). So it needs the two key features that left-drag does in a ListBox default implementation: While holding down the button and dragging, the selection starts where I click down and extends to where I drag. While dragging outside the listbox region, it scrolls if there is scrollable space in that direction. Before I go an duplicate this functionality by hand, is there any easy way to fool ListBox into thinking it's getting left-mouse drag events but instead is getting middle-mouse?

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• How to decide if a parameter is the click event

  - by sameold

  I have a function which can be called by either a click event or directly. When I call it directly, I need pass it a data parameter, so I've defined the function to accept a parameter to account for the direct call with the parameter. function myFunc(param){ } Within the function, I need to differentiate whether the function was called directly or from the click event, so what I thought I could simply check if param is set. If it's set, then the function is called directly. If it's not set, then it's called from the click event. The problem is that a click event by default passes an event object. So even when the function is called by the click event, param won't be null. So is there a way to check whether the param passed is the click event?

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• Set existing Web Service Extension to "Allow" using WiX

  - by Friend Of George

  In IIS Manager under Web Service Extensions, ASP.NET v2.0.50727 is set to "Prohibited" by default. I would like to set this to Allow during the install. I am currently using WiX Version 2. I have tried using: <Component Id="Allow_WebServiceExtension_ASP.NET_2.0" DiskId="1" Guid="02247363-E423-41E1-AC15-BEF589B65A4D"> <WebServiceExtension Id="WebServiceExtension_ASP.NET_2.0" Allow="yes" File="%SystemRoot%\Microsoft.NET\Framework\[DOTNETFRAMEWORKVER]\aspnet_isapi.dll" Description="ASP.NET v2.0.50727" UIDeletable="no" /> </Component> This adds a second ASP.NET 2.0.50727 entry and does not enable the first.

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• Address of instruction causing SIGSEGV in external program

  - by karramba

  I want to get address of instruction that causes external program to SIGSEGV. I tried using ptrace for this, but I'm getting EIP from kernel space (probably default signal handler?). How GDB is able to get the correct EIP? Is there a way to make GDB provide this information using some API? edit: I don't have sources of the program, only binary executable. I need automation, so I can't simply use "run", "info registers" in GDB. I want to implement "info registers" in my own mini-debugger :)

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• Best approach to creating a database driven Java website?

  - by Craig Whitley

  I'm fairly new to programming and new to java, but I'd like to jump in the deep end with a little database driven website project. I've read quite a lot about requirements in the 'real world' requesting experience with Spring and Hibernate, so I have those installed on netbeans and a project created (if I hit run I get the default spring page). Now I just need a little guidance as to where to start designing my app (please tell me if I'm getting in a bit too over my head for a beginner!). Should I start off with my classes? - create all my classes as they map to my database tables and decide which attributes and methods each will require? Can anyone suggest any good books for maybe.. making a java based website from scratch (i.e. from design right through to deployment) that might be useful for a beginner? Any help appreciated thanks.

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• App Engine: how would you... snapshotting entities

  - by Andrew B.

  Let's say you have two kinds, Message and Contact, related by a db.ListProperty of keys on Message. A user creates a message, adds some contacts as recipients, and emails the message. Later, the user deletes one of the contact entities that was a recipient of the message. Our application should delete the appropriate Contact entity, but we want to preserve the original recipient list for the message that was sent for the user's records. In essence, we want a snapshot of the message entity at the time it was sent. If we naively delete the contact entity, though, we lose snapshot integrity; if not, we are left with an invalid key. How would you handle this situation, either in controller logic or model changes? class User(db.Model): email = db.EmailProperty(required=True) class Contact(db.Model): email = db.EmailProperty(required=True) user = db.ReferenceProperty(User, collection_name='contacts') class Message(db.Model): recipients = db.ListProperty(db.Key) # contacts sender = db.ReferenceProperty(User, collection_name='messages') body = db.TextProperty() is_emailed = db.BooleanProperty(default=False)

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• Serializing System.Drawing.Color in .NET

  - by alankdkd

  Hi all, I've used the default .NET serialization for a class with a System.Drawing.Color member. The code is now in use by people, and I need to add an extra member to the class, but still deserialize older versions. So I tried the standard way of doing this: The ISerializable interface, using SerializationInfo methods to get the int and string members. The problem: My class also has a System.Drawing.Color member, but SerializationInfo doesn't provide a "GetColor" method read this data type. I've tried getting it as an int and as a string, and casting it to System.Drawing.Color, but no luck. Does anyone know how to deserialize a System.Drawing.Color from SerializationInfo? Thanx! Alan

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• The meaning of tracking in git

  - by user273158

  In an article that has been cited in StackOverflow a few times (e.g. 1) , the author discusses the asymmetry between git push and git pull, and mentions the following: Update: Thanks to David Ongaro, who points out below that since git 1.7.4.2, the recommended value for the push.default option is upstream rather than tracking, although tracking can still be used as a deprecated synonym. The commit message that describes that change is nice, since it suggests that there is an effort underway to deprecate the term “track” in the context of setting this association with the upstream branch in a remote repository. (The totally different meanings of “track” in git branch --track and “remote-tracking branches” has long irritated me when trying to introduce git to people.) What is exactly the difference that he is referring to with: The notion of "tracking" in git branch --track The notion of "tracking" in remote-tracking branches in the last sentence?

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• Magento data-install script

  - by Vladimir Kerkhoff

  I'm trying to build a data install script that I use to setup a new webstore. This script creates the categories, pages and static blocks and default settings for the specific shop (we use a multistore setup to host the shops). In our dev/staging setup this scripts runs great and all categories are build without any problem. But on our live system this script fails. After some debugging I found the difference is in the Flat catalog usage on the live systems. The problem with creating the category with the flat tables enabled is in getting the parent path information based on the parentId given: $parentCategory = Mage::getModel('catalog/category')->load($parentId); Without flat categories enabled this gives a correct parentCategory, but with flat categories enabled it gives an empty object. Why is this behaviour with flat categories enabled?

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• Download and replace Android resource files

  - by Casebash

  My application will have some customisation for each company that uses it. Up until now, I have been loading images and strings from resource files. The idea is that the default resources will be distributed with the application and company specific resources will be loaded from our server after they click on a link from an email to launch the initialisation intent. Does anyone know how to replace resource files? I would really like to keep using resource files to avoid rewriting a lot of code/XML. I would distribute the application from our own server, rather than through the app store, so that we could have one version per company, but unfortunately this will give quite nasty security warnings that would concern our customers.

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• inheriting scope from a has_many relationship

  - by hb922

  I am using ruby on rails 3.1 and have 2 models, an event and a group. Each event has_many groups, but has to have at least one "master" group, where the column :is_master = true Class Group < ActiveRecord::Base has_many :users belongs_to :event scope :master, where (:is_master => true) end Class Event< ActiveRecord::Base has_many :groups def master_group groups.master end end I want to be able to default all properties of the master group to the event, so for example, event.users.count should be the same as event.master_group.users.count. Is there any way to do something like this? Can I do a has_many :through = master_group? Am I approaching this the wrong way? Thanks!

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• TeamCity build triggers don't automatically run

  - by Phil.Wheeler

  I've been playing around with and learning a bit about TeamCity and have the server correctly set up with my .Net MVC project committed in Subversion successfully and build configurations and triggers sorted to kick off when any changes are committed to the repository. TeamCity polls on its default time period and is picking up that changes have been committed, but it is adding these to the queue without actually ever running them. I have to manually click the "Run" button to kick them off. What setting do I need to change in order to ensure that any new changes are automatically run?

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• How to configure .NET test assembly to use website web.config?

  - by Morten Christiansen

  I've run into a problem setting up Selenium tests for an ASP.NET MVC project in cases where I need the settings provided in the web.config of the site under test. The problem is that I want to create a dummy user before running the test and this causes an error saying that the password-answer supplied is invalid. This is due to the test assembly not using the web.config, instead using default values for membership configuration. I've tried to copy the relevant section (membership configuration) into the app.config of the assembly without luck, but I admit I'm just grasping at straws here.

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• What language is better suited for P2P video streaming?

  - by Roman

  I would like to write a Skype like software which allows P2P video/audio streaming. What language is better suited for that? There are several requirements: Software should be easy to install. It should be easy to program. I want to have access to video information. For example to make a face expression recognition on the fly. It should be free. I am thinking of Python and Java. Which one would be better? Or may be there is a third choice which is better? ADDED Flash is an attractive option since users can use their browser in which flash is installed by default and if not, it's easy to install flash. But I do not know if I can have access to video (if I want to do some processing). Moreover, Flash is not free.

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• Magento - How can I move the Navigation Block to be in the right column?

  - by Hank

  I've been editing Magento's default CSS to change the look and have come to a point where I want to move around some content blocks. I've killed off the left column through CSS .col-left { display: none; } And then increased the width of the main content part to create a 'two column layout'. What I want to do now is move the navigation for the categories into the right column. I just have no idea how... How do I move content blocks around in Magento? :/

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• Is there a simple script to convert C++ enum to string?

  - by Edu Felipe

  Suppose we have some named enums: enum MyEnum { FOO, BAR = 0x50 }; What I googled for is a script (any language) that scans all the headers in my project and generates a header with one function per enum. char* enum_to_string(MyEnum t); And a implementation with something like this: char* enum_to_string(MyEnum t){ switch(t){ case FOO: return "FOO"; case BAR: return "BAR"; default: return "INVALID ENUM"; } } The gotcha is really with typedefed enums, and unnamed C style enums. Does anybody know something for this? EDIT: The solution should not modify my source, except for the generated functions. The enums are in an API, so using the solutions proposed until now is just not an option.

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• Scaling a ruby script by launching multiple processes instead of using threads.

  - by Zombies

  I want to increase the throughput of a script which does net I/O (a scraper). Instead of making it multithreaded in ruby (I use the default 1.9.1 interpreter), I want to launch multiple processes. So, is there a system for doing this to where I can track when one finishes to re-launch it again so that I have X number running at any time. ALso some will run with different command args. I was thinking of writing a bash script but it sounds like a potentially bad idea if there already exists a method for doing something like this on linux.

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• Ruby on Rails: how to sort data in an array of active record objects right before iterating?

  - by DerNalia

  What is the best way to sort an array of active record objects by by a field? This array is a field of an object, link_pages, and I want it sorted by the field "sequence" <% @menu_bar.link_pages.each do |lp| %> <li id="page_<%= lp.id%>" class="ui-state-default"> <span class="ui-icon ui-icon-arrowthick-2-n-s"></span> <font size=5><%= lp.name %></font> | <%= link_to "remove", :controller => "admin/menu_bars", :action => :remove_page_from_menu, :page => lp.id, :id => @menu_bar.id %> </li> <% end %> maybe there is a way to do @menu_bar.link_pages.sort_by_sequence.each do .... that would be slick... but I just don't know.

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• Error after switching from .NET 3.5 to 4

  - by Queops

  Application.Run(new Main()); This line gives TypeInitializationException was unhandled after I switched from 3.5 to 4 framework. Why is this? Edit: Forgot to mention this is a Winforms C# application. Okay so I have SQLite .NET referenced. I tried this on a project created on .NET 4 by default and didn't give me any error so I assumed it wasn't about SQLite .NET http://sqlite.phxsoftware.com/ Please note v2.0.50727 this is the runtime version of the DLL which seems to be causing the problem. Thrown: "A assemblagem de modo misto foi criada com base na versão 'v2.0.50727' do tempo de execução e não é possível carregá-la no tempo de execução 4.0 sem informações de configuração adicionais." (System.IO.FileLoadException) Exception Message = "A assemblagem de modo misto foi criada com base na versão 'v2.0.50727' do tempo de execução e não é possível carregá-la no tempo de execução 4.0 sem informações de configuração adicionais.", Exception Type = "System.IO.FileLoadException" Seems he can't run the DLL on v4 with/ extra configuration.

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• Dojo Select widget validation style

  - by jamstooks

  Many dojo form widgets, like DateTextBox will style themselves in red (claro theme) with an "!" to indicate that the field isn't valid after focus. I can't seem to get this type of styling to work with the Select widget. I have the value set to required, but if the user leaves it in the default state, blank, then it remains unstyled. I tried to test this programmatically: wigs = dijit.findWidgets(node); for( i = 0; i < wigs.length; i++ ) { wigs[i].focus(); } This triggers validation on several other widgets and they are styled appropriately, but not he Select widgets. Anyone know how to make it obvious that those select widgets are not validating? Oh, and wigs[i].isValid() is definitely false for those select widgets.

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• Django ORM dealing with MySQL BIT(1) field

  - by Carles Barrobés

  In a Django application, I'm trying to access an existing MySQL database created with Hibernate (a Java ORM). I reverse engineered the model using: $ manage.py inspectdb > models.py This created a nice models file from the Database and many things were quite fine. But I can't find how to properly access boolean fields, which were mapped by Hibernate as columns of type BIT(1). The inspectdb script by default creates these fields in the model as TextField and adds a comment saying that it couldn't reliably obtain the field type. I changed these to BooleanField but it doesn't work (the model objects always fetch a value of true for these fields). Using IntegerField won't work as well (e.g. in the admin these fields show strange non-ascii characters). Any hints of doing this without changing the database? (I need the existing Hibernate mappings and Java application to still work with the database).

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• How to have NHibernate persist a String.Empty property value as NULL

  - by Todd

  I have a fairly simple class that I want to save to SQL Server via NHibernate (w/ Fluent mappings). The class is made up mostly of optional string fields. My problem is I default the class fields to string.empty to avoid NullRefExceptions and when NHibernate saves the row to the database each column contains an empty string instead of null. Question: Is there a way for me to get NHibernate to automatically save null when the string property is an empty string? Or do I need to litter my code with if (string.empty) checks?

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• Previewing php pages inside Expression Web 3 suddently stopped working

  - by user1660569

  On a Windows 7 development machine, I have expression web 3, PHP 5 installed I have been using expression web and PHP for a while, and previewing php pages etc on pressing F12 (preview using local server). Suddenly on F12 all PHP pages display as blank, even a phpinfo() file. Standard html pages continue to work correctly on F12. If I place the same page php inside the default website on inetpub and browse using localhost then the phpinfo() file works. So I know that php is installed and configured correctly for IIS. Things I've checked: Gone into site settings in Expression web and confirmed that php is selected and it is pointing to the php executable Reinstalled php Checked iis that the php extension is registered. Copied files to a different machine with expression web and php installed and it works on. The strange thing is that it gives a blank (no errors) page inside expression web, but does work inside inetpub This was working up until recently, then suddenly stopped for no reason.

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