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  • Create multiple modal windows with javascript (+jQuery), what is the best practice to indentify wind

    - by Kirzilla
    Hello, When creating every instance of Window object I should bind close button of each window to closing this window. But how should I identify windows? Should I create unique id for each Window instance or maybe another way? What is the best way to create such identifiers, maybe some kind of singleton object with id parameter which should be incremented each time when window is created? Thank you.

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  • using joins or multiple queries in php/mysql

    - by askkirati
    Here i need help with joins. I have two tables say articles and users. while displaying articles i need to display also the user info like username, etc. So will it be better if i just use joins to join the articles and user tables to fetch the user info while displaying articles like below. SELECT a.*,u.username,u.id FROM articles a JOIN users u ON u.id=a.user_id OR can this one in php. First i get the articles with below sql SELECT * FROM articles Then after i get the articles array i loop though it and get the user info inside each loop like below SELECT username, id FROM users WHERE id='".$articles->user_id."'; Which is better can i have explanation on why too. Thank you for any reply or views

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  • Symfony2 bindrequest error

    - by user1321109
    namespace Topxia\LiftBundle\Form; use Symfony\Component\Validator\Constraint as Assert; class AddUser { /** * @Assert\NotBlank(message="???????") */ public $username; /** * @Assert\NotBlank(message="????????") */ public $name; /** * @Assert\NotBlank(message="??????") * @Assert\MinLength(limit=4,message="?????") * @Assert\MaxLength(limit=24,message="?????") */ public $password; /** * @Assert\NotBlank(message="??????") */ public $rpassword; /** * @Assert\NotBlank(message="???????") * @Assert\Email(message="???????") */ public $email; /** * @Assert\NotBlank(message="k3????????") */ public $num; /** * @Assert\NotBlank() * @Assert\Choice({"0", "1", "2", "3", "4"}) */ public $roles; public $changePassword; } namespace Topxia\LiftBundle\Form; use Symfony\Component\Form\AbstractType; use Symfony\Component\Form\FormBuilder; class AddUserType extends AbstractType{ public function buildForm(FormBuilder $builder, array $options){ $builder->add('username', 'text', array('label' => '????')); $builder->add('name', 'text', array('label' => '???')); $builder->add('password', 'password', array('label' => '??')); $builder->add('rpassword', 'password', array('label' => '????')); $builder->add('email', 'email', array('label' => '??')); $builder->add('num', 'text', array('label' => 'K3????')); $builder->add('roles', 'choice', array('label' => '???', 'multiple' => false, 'expanded' => true, 'choices' => array( '0' => '?????', '1' => '?????', '2' => '?????', '3' => '???', '4' => '???' ), )); $builder->add('changePassword', 'checkbox', array('label' => '??????', 'value' => '1')); } public function getName(){ return 'add_user'; } } when i use $form-bindRequest($request); in conctollor there is an error : [Semantical Error] The annotation "@Symfony\Component\Validator\Constraint\NotBlank" in property Topxia\LiftBundle\Form\AddUser::$username does not exist, or could not be auto-loaded. 500 Internal Server Error - AnnotationException I have no idea about this. Thanks

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  • Passing empty list as parameter to JPA query throws error

    - by Tuukka Mustonen
    If I pass an empty list into a JPA query, I get an error. For example: List<Municipality> municipalities = myDao.findAll(); // returns empty list em.createQuery("SELECT p FROM Profile p JOIN p.municipality m WHERE m IN (:municipalities)") .setParameter("municipalities", municipalities) .getResultList(); Because the list is empty, Hibernate generates this in SQL as "IN ()", which gives me error with Hypersonic database. There is a ticket for this in Hibernate issue tracking but there are not many comments/activity there. I don't know about support in other ORM products or in JPA spec either. I don't like the idea of having to manually check for null objects and empty lists every time. Is there some commonly known approach/extension to this? How do you handle these situations?

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  • Problem using form builder & DOM manipulation in Rails with multiple levels of nested partials

    - by Chris Hart
    I'm having a problem using nested partials with dynamic form builder code (from the "complex form example" code on github) in Rails. I have my top level view "new" (where I attempt to generate the template): <% form_for (@transaction_group) do |txngroup_form| %> <%= txngroup_form.error_messages %> <% content_for :jstemplates do -%> <%= "var transaction='#{generate_template(txngroup_form, :transactions)}'" %> <% end -%> <%= render :partial => 'transaction_group', :locals => { :f => txngroup_form, :txn_group => @transaction_group }%> <% end -%> This renders the transaction_group partial: <div class="content"> <% logger.debug "in partial, class name = " + txn_group.class.name %> <% f.fields_for txn_group.transactions do |txn_form| %> <table id="transactions" class="form"> <tr class="header"><td>Price</td><td>Quantity</td></tr> <%= render :partial => 'transaction', :locals => { :tf => txn_form } %> </table> <% end %> <div>&nbsp;</div><div id="container"> <%= link_to 'Add a transaction', '#transaction', :class => "add_nested_item", :rel => "transactions" %> </div> <div>&nbsp;</div> ... which in turn renders the transaction partial: <tr><td><%= tf.text_field :price, :size => 5 %></td> <td><%= tf.text_field :quantity, :size => 2 %></td></tr> The generate_template code looks like this: def generate_html(form_builder, method, options = {}) options[:object] ||= form_builder.object.class.reflect_on_association(method).klass.new options[:partial] ||= method.to_s.singularize options[:form_builder_local] ||= :f form_builder.fields_for(method, options[:object], :child_index => 'NEW_RECORD') do |f| render(:partial => options[:partial], :locals => { options[:form_builder_local] => f }) end end def generate_template(form_builder, method, options = {}) escape_javascript generate_html(form_builder, method, options) end (Obviously my code is not the most elegant - I was trying to get this nested partial thing worked out first.) My problem is that I get an undefined variable exception from the transaction partial when loading the view: /Users/chris/dev/ss/app/views/transaction_groups/_transaction.html.erb:2:in _run_erb_app47views47transaction_groups47_transaction46html46erb_locals_f_object_transaction' /Users/chris/dev/ss/app/helpers/customers_helper.rb:29:in generate_html' /Users/chris/dev/ss/app/helpers/customers_helper.rb:28:in generate_html' /Users/chris/dev/ss/app/helpers/customers_helper.rb:34:in generate_template' /Users/chris/dev/ss/app/views/transaction_groups/new.html.erb:4:in _run_erb_app47views47transaction_groups47new46html46erb' /Users/chris/dev/ss/app/views/transaction_groups/new.html.erb:3:in _run_erb_app47views47transaction_groups47new46html46erb' /Users/chris/dev/ss/app/views/transaction_groups/new.html.erb:1:in _run_erb_app47views47transaction_groups47new46html46erb' /Users/chris/dev/ss/app/controllers/transaction_groups_controller.rb:17:in new' I'm pretty sure this is because the do loop for form_for hasn't executed yet (?)... I'm not sure that my approach to this problem is the best, but I haven't been able to find a better solution for dynamically adding form partials to the DOM. Basically I need a way to add records to a has_many model dynamically on a nested form. Any recommendations on a way to fix this particular problem or (even better!) a cleaner solution are appreciated. Thanks in advance. Chris

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  • c++ vector.push_back error: request for member 'push_back'..., which is of non-class type 'vector(ch

    - by Ziplin
    I'm using Cygwin with GCC, and ultimately I want to read in a file of characters into a vector of characters, and using this code #include <fstream> #include <vector> #include <stdlib.h> using namespace std; int main (int argc, char *argv[] ) { vector<char> string1(); string1.push_back('a'); return 0; } generates this compile time error: main.cpp: In function int main(int, char**)': main.cpp:46: error: request for memberpush_back' in string1', which is of non -class typestd::vector ()()' I tried this with a vector of ints and strings as well and they had the same problem.

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  • Java compiler error: "cannot find symbol" when trying to access local variable

    - by HH
    $ javac GetAllDirs.java GetAllDirs.java:16: cannot find symbol symbol : variable checkFile location: class GetAllDirs System.out.println(checkFile.getName()); ^ 1 error $ cat GetAllDirs.java import java.util.*; import java.io.*; public class GetAllDirs { public void getAllDirs(File file) { if(file.isDirectory()){ System.out.println(file.getName()); File checkFile = new File(file.getCanonicalPath()); }else if(file.isFile()){ System.out.println(file.getName()); File checkFile = new File(file.getParent()); }else{ // checkFile should get Initialized at least HERE! File checkFile = file; } System.out.println(file.getName()); // WHY ERROR HERE: checkfile not found System.out.println(checkFile.getName()); } public static void main(String[] args) { GetAllDirs dirs = new GetAllDirs(); File current = new File("."); dirs.getAllDirs(current); } }

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  • Multiple JS effects on one event

    - by Cylindric
    I've got a bunch of Ajax links in a menu that reload a div called #ajaxupdatediv. I want to display another div while that's loading the new content, so how would I fire off both effects? <div id="#ajaxupdatediv"> Content will go here </div> <div id="ajaxloadingdiv"> ...Loading... </div> Here's a bit of the PHP array( 'update' => '#ajaxupdatediv', 'before' => $this->Js->get('#ajaxupdatediv')->effect('fadeOut'), 'complete' => $this->Js->get('#ajaxupdatediv')->effect('fadeIn'), )

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  • SWFUpload is it possible to upload multiple files to a single php script execution

    - by user176333
    Hello, I'm trying to implement SWFUpload into an existing PHP upload funcitonality. My current backend script however expects 2 fiels to be uploaded in a single php script execution. (e.g. it excepts the $_FILES parameters to contain 2 entries). So i'm queueing 2 files with SWFUpload and start uploading them. However it appears SWFLUpload calls the php backend script for each queued file. I'd rather modify SWFUpload to send the files with a single backend script execution instead on having to adjust the backend script. Is anyone familiar with this? I've searched various resources (like the SWFUploads docs and forum, but have not found similiar topics. Thanks in advance

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  • Search Multiple Tables of a Mysql Database

    - by DogPooOnYourShoe
    I have the following code: $query = "select * from customer where Surname like \"%$trimmed%\" OR TitleName like \"%$trimmed%\" OR PostCode like \"%$trimmed%\" order by Surname"; However, I have another table which I want to search from with the same paramaters(variables) as that. I know that something like "select * from customer,othertable" might not be possible, Is there a way to do it?

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  • error: ‘struct mcontext_t’ has no member named ‘eip’

    - by user353573
    original is struct sigcontext *sc; after changing to struct mcontext_t, error occur. How to fix it? error: ‘struct mcontext_t’ has no member named ‘eip’ #include <stdio.h> #include <signal.h> #include <asm/ucontext.h> static unsigned long target; void handler(int signum, siginfo_t *siginfo, void *uc0){ struct ucontext *uc; mcontext_t *sc; uc = (struct ucontext *)uc0; sc = &uc->uc_mcontext; sc->eip = target; }

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  • Dynamic model choice field in django formset using multiple select elements

    - by Aryeh Leib Taurog
    I posted this question on the django-users list, but haven't had a reply there yet. I have models that look something like this: class ProductGroup(models.Model): name = models.CharField(max_length=10, primary_key=True) def __unicode__(self): return self.name class ProductRun(models.Model): date = models.DateField(primary_key=True) def __unicode__(self): return self.date.isoformat() class CatalogItem(models.Model): cid = models.CharField(max_length=25, primary_key=True) group = models.ForeignKey(ProductGroup) run = models.ForeignKey(ProductRun) pnumber = models.IntegerField() def __unicode__(self): return self.cid class Meta: unique_together = ('group', 'run', 'pnumber') class Transaction(models.Model): timestamp = models.DateTimeField() user = models.ForeignKey(User) item = models.ForeignKey(CatalogItem) quantity = models.IntegerField() price = models.FloatField() Let's say there are about 10 ProductGroups and 10-20 relevant ProductRuns at any given time. Each group has 20-200 distinct product numbers (pnumber), so there are at least a few thousand CatalogItems. I am working on formsets for the Transaction model. Instead of a single select menu with the several thousand CatalogItems for the ForeignKey field, I want to substitute three drop-down menus, for group, run, and pnumber, which uniquely identify the CatalogItem. I'd also like to limit the choices in the second two drop-downs to those runs and pnumbers which are available for the currently selected product group (I can update them via AJAX if the user changes the product group, but it's important that the initial page load as described without relying on AJAX). What's the best way to do this? As a point of departure, here's what I've tried/considered so far: My first approach was to exclude the item foreign key field from the form, add the substitute dropdowns by overriding the add_fields method of the formset, and then extract the data and populate the fields manually on the model instances before saving them. It's straightforward and pretty simple, but it's not very reusable and I don't think it is the right way to do this. My second approach was to create a new field which inherits both MultiValueField and ModelChoiceField, and a corresponding MultiWidget subclass. This seems like the right approach. As Malcolm Tredinnick put it in a django-users discussion, "the 'smarts' of a field lie in the Field class." The problem I'm having is when/where to fetch the lists of choices from the db. The code I have now does it in the Field's __init__, but that means I have to know which ProductGroup I'm dealing with before I can even define the Form class, since I have to instantiate the Field when I define the form. So I have a factory function which I call at the last minute from my view--after I know what CatalogItems I have and which product group they're in--to create form/formset classes and instantiate them. It works, but I wonder if there's a better way. After all, the field should be able to determine the correct choices much later on, once it knows its current value. Another problem is that my implementation limits the entire formset to transactions relating to (CatalogItems from) a single ProductGroup. A third possibility I'm entertaining is to put it all in the Widget class. Once I have the related model instance, or the cid, or whatever the widget is given, I can get the ProductGroup and construct the drop-downs. This would solve the issues with my second approach, but doesn't seem like the right approach.

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  • Running multiple applications in STM32 flash

    - by Richard
    Hey! I would like to have two applications in my STM32 flash, one is basically a boot and the other the 'main' application. I have figured out how to load each of them into different areas of flash, and after taking a memory dump everything looks like it is in the right place. So when I do a reset it loads the boot, all the boot does at the moment is jump to the application. Debugging the boot, this all appears to work correctly. However the problems arrives after i've made the jump to the application, it just executes one instruction (assembly) and then jumps back to the boot. It should stay in the application indefinitely. My question is then, where should I 'jump' to in the app? It seems that there are a few potential spots, such as the interrupt vectors, the reset handler, the main function of the app. Actually I've tried all of those with no success. Hopefully that makes sense, i'll update the question if not. thanks for your help! Richard Updates: I had a play around in the debugger and manually changed the program counter to the main of the application, and well that worked a charm, so it makes me think there is something wrong with my jump, why doesn't the program counter keep going after the jump? Actually it seems to be the PSR, the 'T' gets reset on the jump, if I set that again after the jump it continues on with the app as I desire Ok found a solution, seems that you need to have the PC LSB set to 1 when you do a branch or it falls into the 'ARM' mode (32 bit instruction instead of 16 bit instructions like in the 'thumb' mode. Quite an obscure little problem, thanks for letting me share it with you!

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  • sIFR and multiple requests

    - by mblaze
    Hi! I've been using sIRF for a while but it was the first time I watch the traffic between the client and the server. There is only one file for sIRF, nyala.swf. I am using replacements for some headings, at most 5 or 6 at a time on one page. I can see from firebug the a separate request is going to server for the same swf file. I think I saw a config option to change this behavior but I couldn't find it again. Any ideas?

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  • while creating archetype getting following error

    - by munna
    D:\Training\workspace\vppsourcemvn archetype:generate -B -DarchetypeGroupId=org .appfuse.archetypes -DarchetypeArtifactId=appfuse-modular-struts-archetype -Darc hetypeVersion=2.1.0-M1 -DgroupId=com.vmware -DartifactId=vpp [INFO] Scanning for projects... [INFO] Searching repository for plugin with prefix: 'archetype'. [INFO] ------------------------------------------------------------------------ [INFO] Building Maven Default Project [INFO] task-segment: [archetype:generate] (aggregator-style) [INFO] ------------------------------------------------------------------------ [INFO] Preparing archetype:generate [INFO] No goals needed for project - skipping [INFO] [archetype:generate {execution: default-cli}] [INFO] Generating project in Batch mode [WARNING] Error reading archetype catalog http://repo1.maven.org/maven2 org.apache.maven.wagon.TransferFailedException: Error transferring file: Connect ion timed out: connect at org.apache.maven.wagon.providers.http.LightweightHttpWagon.fillInputD ata(LightweightHttpWagon.java:143) at org.apache.maven.wagon.StreamWagon.getInputStream(StreamWagon.java:11 6) at org.apache.maven.wagon.StreamWagon.getIfNewer(StreamWagon.java:88) at org.apache.maven.wagon.StreamWagon.get(StreamWagon.java:61) at org.apache.maven.archetype.source.RemoteCatalogArchetypeDataSource.ge tArchetypeCatalog(RemoteCatalogArchetypeDataSource.java:97) at org.apache.maven.archetype.DefaultArchetypeManager.getRemoteCatalog(D efaultArchetypeManager.java:195) at org.apache.maven.archetype.DefaultArchetypeManager.getRemoteCatalog(D efaultArchetypeManager.java:184) at org.apache.maven.archetype.ui.DefaultArchetypeSelector.getArchetypesB yCatalog(DefaultArchetypeSelector.java:278) at org.apache.maven.archetype.ui.DefaultArchetypeSelector.selectArchetyp e(DefaultArchetypeSelector.java:69) at org.apache.maven.archetype.mojos.CreateProjectFromArchetypeMojo.execu te(CreateProjectFromArchetypeMojo.java:186) at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPlugi nManager.java:490) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(Defa ultLifecycleExecutor.java:694) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandalone Goal(DefaultLifecycleExecutor.java:569) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(Defau ltLifecycleExecutor.java:539) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHan dleFailures(DefaultLifecycleExecutor.java:387) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegmen ts(DefaultLifecycleExecutor.java:284) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLi fecycleExecutor.java:180) at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:328) at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:138) at org.apache.maven.cli.MavenCli.main(MavenCli.java:362) at org.apache.maven.cli.compat.CompatibleMain.main(CompatibleMain.java:6 0) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl. java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces sorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315) at org.codehaus.classworlds.Launcher.launch(Launcher.java:255) at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430) at org.codehaus.classworlds.Launcher.main(Launcher.java:375) Caused by: java.net.ConnectException: Connection timed out: connect at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333) at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366) at java.net.Socket.connect(Socket.java:529) at java.net.Socket.connect(Socket.java:478) at sun.net.NetworkClient.doConnect(NetworkClient.java:163) at sun.net.www.http.HttpClient.openServer(HttpClient.java:394) at sun.net.www.http.HttpClient.openServer(HttpClient.java:529) at sun.net.www.http.HttpClient.(HttpClient.java:233) at sun.net.www.http.HttpClient.New(HttpClient.java:306) at sun.net.www.http.HttpClient.New(HttpClient.java:323) at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLC onnection.java:860) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConne ction.java:801) at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection .java:726) at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLCon nection.java:1049) at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:373 ) at org.apache.maven.wagon.providers.http.LightweightHttpWagon.fillInputD ata(LightweightHttpWagon.java:115) ... 28 more [WARNING] No archetype found in Remote catalog. Defaulting to internal Catalog [INFO] ------------------------------------------------------------------------ [ERROR] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] [INFO] ------------------------------------------------------------------------ [INFO] For more information, run Maven with the -e switch [INFO] ------------------------------------------------------------------------ [INFO] Total time: 46 seconds [INFO] Finished at: Wed Jun 09 16:11:07 IST 2010 [INFO] Final Memory: 11M/28M [INFO] ------------------------------------------------------------------------

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  • Recovering 'old commits' from multiple git rebases

    - by Benjol
    I am aware of this question, but not to sure how to map it to my current situation. (Rebase is scary, undoing rebase is double scary!) I started out with several different feature branches of my master: master x-x-x-x-x-x-x-x-x-x \ \ \ FeatureA 1-2-3 \ \ FeatureB A-B \ FeatureC X-Y-Z I wanted to merge them all together and check they worked before merging back onto the top of master, so I did a: git checkout FeatureB git rebase FeatureA git mergetool //etc git rebase --continue Then git checkout FeatureC git rebase FeatureB git mergetool //hack hack git rebase --continue Which leaves me with master x-x-x-x-x-x-x-x-x-x \ FeatureA 1-2-3 \ FeatureB A'-B' \ FeatureC X'-Y'-Z' Then I corrected some bits that didn't compile properly, and got the whole feature set to an acceptable state: master x-x-x-x-x-x-x-x-x-x \ FeatureA 1-2-3 \ FeatureB A'-B' \ FeatureC X'-Y'-Z'-W My problem is that my colleagues tell me that we're not ready for FeatureA. Is there any way for me to keep all my work, but also revert to a situation where I can just rebase FeatureC on to Feature B?

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  • Ruby fixtures error with password column

    - by user347998
    I am trying to load a fixture for my tests which has a password column (binary datatype). The tool i am using uses EzCrypto gem for encrypting and decrypting passwords before they are stored/retrieved. Now if my column is binary i thought rails would automatically store the password as encrypted - but all i get is: 1) Error: test_is_working(FirstTest): RuntimeError: Failed to decode the field. Incorrect key? /Library/Ruby/Gems/1.8/gems/mislav-will_paginate-2.3.11/lib/will_paginate/finder.rb:170:in method_missing' unit/first_test.rb:8:insetup' 2) Error: test_sanity(FirstTest): RuntimeError: Failed to decode the field. Incorrect key? unit/first_test.rb:8:in `setup' Fixture file looks like this: first_hussle: type: FirstAccount user: jsewq username: [email protected] password: 'abc123' any clues?

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  • Multiple forms in delphi

    - by Hendriksen123
    In my Delphi Project i want to have a 'Settings' button that when clicked, opens a second form (i think this is the correct term, i essentially want a new window to open) for settings. When the user has finished changing the settings on this new form, i want the form to close on a button click. The settings the user types in will also need to be accessible to the first, 'main' form. So, for example, if my programme consisted of a main form, that calculated 'A' + 'B' (A and B being integer variables), with the settings form allowing the user to set values for A and B, how would i do this?

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  • full text search on multiple fields in diferrent tables

    - by crisgomez
    Hi, I want to create a a full text search usng ms sql 2005. here is the structure of my table User-contains fields of Id, fname,lname,email,alternativeemail Attachment-contains fields of id, name,category,filenameorurl Certification-contains of fileds of id, title,school,sdate,edate EducationalBackground-contain of fields of, id,qualification,sdate,edate,school,fieldofstudy EmploymentDetails-contain of fields position, positionlevelid,specializationid,description now the relationship of user to the other table is one to many relationship. now how can I create an effective query to have quick full text search and return the values of the different tables?any help please

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  • MySQL query count multiple values

    - by Sqlclown
    Consider the following DB table: c p ========= 1 'a' 1 'b' 2 'a' 2 'c' Now, my goal is to retrieve a list of numbers c, for which holds that each number in this list has at least a record with p='a' AND p='b'. In the example table above, that would be c=1. Now my question is, how do I accomplish this using one MySQL query?

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  • C# WinForms. Multiple Forms in separate threads

    - by Calum Murray
    I'm trying to run an ATM Simulation in C# with Windows Forms that can have more than one instance of an ATM machine transacting with a bank account simultaneously. The idea is to use semaphores/locking to block critical code that may lead to race conditions. My question is this: How can I run two Forms simultaneously on separate threads? In particular, how does all of this fit in with the Application.Run() that's already there? Here's my main class: public class Bank { private Account[] ac = new Account[3]; private ATM atm; public Bank() { ac[0] = new Account(300, 1111, 111111); ac[1] = new Account(750, 2222, 222222); ac[2] = new Account(3000, 3333, 333333); Application.Run(new ATM(ac)); } static void Main(string[] args) { new Bank(); } } ...that I want to run two of these forms on separate threads... public partial class ATM : Form { //local reference to the array of accounts private Account[] ac; //this is a reference to the account that is being used private Account activeAccount = null; private static int stepCount = 0; private string buffer = ""; // the ATM constructor takes an array of account objects as a reference public ATM(Account[] ac) { InitializeComponent(); //Sets up Form ATM GUI in ATM.Designer.cs this.ac = ac; } ... I've tried using Thread ATM2 = new Thread(new ThreadStart(/*What goes in here?*/)); But what method do I put in the ThreadStart constructor, since the ATM form is event-driven and there's no one method controlling it? Thanks, Calum

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  • Switch between multiple views while respecting orientation

    - by zoul
    Hello! I have an MVC application with a single model and several views (something like skins). I want the user to be able to switch the views and I can’t get it working with interface orientation. The most simple approach looks like this: - (void) switchToADifferentView: (UIView*) newView { // self is a descendant of UIViewController self.view = newView; } This does not work because the incoming view does not get rotated according to current orientation (until the next orientation change, test case). Is there a way to force the orientation on a view? It looks like the system is trying really hard to keep the interface controls for itself. (Or is it as simple as setting the right transform by hand?) I figured I’d better not switch the views directly and switch controllers instead. This makes sense, as it makes the initial code simpler. But how do I switch controllers that have no “navigation relation” between them? I guess I could use presentModalViewController:, but that seems like a hack. Same goes for navigation controller. If I exchange the controllers by hand, I get the wrong orientation again: - (void) switchToAController: (id) incoming { [currentController.view removeFromSuperview]; [window addSubview:incoming.view]; // does not respect current orientation } Now how the heck do I simply exchange the current controller for another one? Again, the controllers are something like “skins” operating above a shared model, so it really makes no sense to pretend that skin A is a “modal” dialog above skin B or that they’re a part of a navigation stack.

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  • Multiple merchant accounts with Activemerchant gem.

    - by sosborn
    I am developing a rails site that will allow a group of merchants (5 - 10) to accept credit card orders online. I plan on using the Activemerchant gem to handle the processing. In this case, each merchant will have their own merchant accounts to handle the payments. Storing banking information like that is not something I am a fan of. This could be solved by queing orders and allowing the merchant to log in to the site, input their credentials and process the order. However, if I go that route then it seems to me that I would have to store the customers' credit card information temporarily until the merchant has the opportunity to log in and process the order, which to me is the greater evil. Has anyone dealt with this situation? If so, what are the options available and what pitfalls should I look out for? In my mind, security customer credit card information is priority number one with the merchant account information a close second.

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  • YUI 3 Selector for multiple class names

    - by Jasie
    Hello, I have a bunch of divs like this: <div class="bear"></div> <div class="dog"></div> How do I get a nodelist that includes all divs with class of bear and dog? I tried: Y.get(".bear .dog").each(function() { }); But it returns null. Anyone have any suggestions? Thanks!

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