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  • How to dynamic adjust the width of columns in Table layout

    - by michael
    Hi, I create a TableLayout which has 3 equally-wide columns (I put 'stretchColumns="*" in my TableLayout which has 3 TextViews). See below: But my questions is why I set one of the TextView to 'visibility' to Gone in my java code, the TableLayout does not re-size to 2 qually-wide columns which fit the whole screen. I have even call 'tableLayout.requestLayout()' after i set the visibility to Gone.' How can I achieve what I want? Thank you. <TableLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="wrap_content" android:id="@+id/textpanel" android:stretchColumns="*"> <TableRow android:layout_width="fill_parent" android:layout_height="wrap_content"> <TextView android:id="@+id/text1" android:layout_width="fill_parent" android:layout_height="wrap_content"/> <TextView android:id="@+id/text2" android:layout_width="fill_parent" android:layout_height="wrap_content"/> <TextView android:id="@+id/text3" android:layout_width="fill_parent" android:layout_height="wrap_content"/> </TableRow> </TableLayout>

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  • Apache is sending php files to my browser instead of parsing

    - by justen doherty
    i have to setup php on an existing web host, i have made a virtual host entry but for some reason apache is sending the php to the browser instead of parsing.. from googling around it looks like its a problem with the mimetypes, but im not an apache expert by any means - so if anyone can help it would be appreciated... i have the following in my httpd.conf AddHandler php5-script php DirectoryIndex index.html index.phtml index.php index.phps AddType application/x-httpd-php .phtml AddType application/x-httpd-php .php AddType application/x-httpd-php-source .phps the php module is loaded into apache: /usr/sbin/apachectl -M Loaded Modules: core_module (static) mpm_prefork_module (static) http_module (static) so_module (static) auth_basic_module (shared) auth_digest_module (shared) authn_file_module (shared) authn_alias_module (shared) authn_anon_module (shared) authn_dbm_module (shared) authn_default_module (shared) authz_host_module (shared) authz_user_module (shared) authz_owner_module (shared) authz_groupfile_module (shared) authz_dbm_module (shared) authz_default_module (shared) ldap_module (shared) authnz_ldap_module (shared) include_module (shared) log_config_module (shared) logio_module (shared) env_module (shared) ext_filter_module (shared) mime_magic_module (shared) expires_module (shared) deflate_module (shared) headers_module (shared) usertrack_module (shared) setenvif_module (shared) mime_module (shared) dav_module (shared) status_module (shared) autoindex_module (shared) info_module (shared) dav_fs_module (shared) vhost_alias_module (shared) negotiation_module (shared) dir_module (shared) actions_module (shared) speling_module (shared) userdir_module (shared) alias_module (shared) rewrite_module (shared) proxy_module (shared) proxy_balancer_module (shared) proxy_ftp_module (shared) proxy_http_module (shared) proxy_connect_module (shared) cache_module (shared) suexec_module (shared) disk_cache_module (shared) file_cache_module (shared) mem_cache_module (shared) cgi_module (shared) version_module (shared) fcgid_module (shared) perl_module (shared) php5_module (shared) proxy_ajp_module (shared) ssl_module (shared) and this is my virtual host entry: ServerName viridor-cms.co.uk ServerAlias www.viridor-cms.co.uk UseCanonicalName Off DocumentRoot /var/www/vhosts/viridor-cms.co.uk/httpdocs CustomLog /var/www/vhosts/viridor-cms.co.uk/cms-access_log common ErrorLog /var/www/vhosts/viridor-cms.co.uk/cms-error_log DirectoryIndex index.php index.html php_admin_flag engine on php_admin_flag safe_mode on php_admin_flag engine on php_admin_flag safe_mode on AddType application/x-httpd-php .php AddType application/x-httpd-php-source .phps please help, my head is so sore from banging it againest the table and the wall !

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  • SQLAlchemy session management in long-running process

    - by codeape
    Scenario: A .NET-based application server (Wonderware IAS/System Platform) hosts automation objects that communicate with various equipment on the factory floor. CPython is hosted inside this application server (using Python for .NET). The automation objects have scripting functionality built-in (using a custom, .NET-based language). These scripts call Python functions. The Python functions are part of a system to track Work-In-Progress on the factory floor. The purpose of the system is to track the produced widgets along the process, ensure that the widgets go through the process in the correct order, and check that certain conditions are met along the process. The widget production history and widget state is stored in a relational database, this is where SQLAlchemy plays its part. For example, when a widget passes a scanner, the automation software triggers the following script (written in the application server's custom scripting language): ' wiget_id and scanner_id provided by automation object ' ExecFunction() takes care of calling a CPython function retval = ExecFunction("WidgetScanned", widget_id, scanner_id); ' if the python function raises an Exception, ErrorOccured will be true ' in this case, any errors should cause the production line to stop. if (retval.ErrorOccured) then ProductionLine.Running = False; InformationBoard.DisplayText = "ERROR: " + retval.Exception.Message; InformationBoard.SoundAlarm = True end if; The script calls the WidgetScanned python function: # pywip/functions.py from pywip.database import session from pywip.model import Widget, WidgetHistoryItem from pywip import validation, StatusMessage from datetime import datetime def WidgetScanned(widget_id, scanner_id): widget = session.query(Widget).get(widget_id) validation.validate_widget_passed_scanner(widget, scanner) # raises exception on error widget.history.append(WidgetHistoryItem(timestamp=datetime.now(), action=u"SCANNED", scanner_id=scanner_id)) widget.last_scanner = scanner_id widget.last_update = datetime.now() return StatusMessage("OK") # ... there are a dozen similar functions My question is: How do I best manage SQLAlchemy sessions in this scenario? The application server is a long-running process, typically running months between restarts. The application server is single-threaded. Currently, I do it the following way: I apply a decorator to the functions I make avaliable to the application server: # pywip/iasfunctions.py from pywip import functions def ias_session_handling(func): def _ias_session_handling(*args, **kwargs): try: retval = func(*args, **kwargs) session.commit() return retval except: session.rollback() raise return _ias_session_handling # ... actually I populate this module with decorated versions of all the functions in pywip.functions dynamically WidgetScanned = ias_session_handling(functions.WidgetScanned) Question: Is the decorator above suitable for handling sessions in a long-running process? Should I call session.remove()? The SQLAlchemy session object is a scoped session: # pywip/database.py from sqlalchemy.orm import scoped_session, sessionmaker session = scoped_session(sessionmaker()) I want to keep the session management out of the basic functions. For two reasons: There is another family of functions, sequence functions. The sequence functions call several of the basic functions. One sequence function should equal one database transaction. I need to be able to use the library from other environments. a) From a TurboGears web application. In that case, session management is done by TurboGears. b) From an IPython shell. In that case, commit/rollback will be explicit. (I am truly sorry for the long question. But I felt I needed to explain the scenario. Perhaps not necessary?)

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  • Why is MonoDevelop compiling with csc.exe?

    - by korchev
    I am trying to use MonoDevelop (2.4 beta 1) on Windows (7 x64) in order to test a .NET application on Mono (2.6.4). For some reason MonoDevelop is not using the Mono tool chain to build the application. It compiles it with the Microsoft tool chain - C:\Windows\Microsoft.NET\Framework\v3.5\csc.exe. The project I am trying to build is a simple ASP.NET MVC application generated from the "New ASP.NET MVC application" template. The "Runtime Version" dropdown in Project \Options-Build-General shows "MONO/.NET 35". What gives? Is there a way to change the .NET tool chain?

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  • error at calling custom web service from plugin

    - by Volodymyr Vykhrushch
    hi guys, I try to call my custom web service which deployed as part of CRM4 and receive the following error: Client found response content type of 'text/html; charset=utf-8', but expected 'text/xml'. The request failed with the error message: -- <html> <head> <title>No Microsoft Dynamics CRM user exists with the specified domain name and user ID</title> <style> ... </style> </head> <body bgcolor="white"> <span><H1>Server Error in '/RecurrenceService' Application.<hr width=100% size=1 color=silver></H1> <h2> <i>No Microsoft Dynamics CRM user exists with the specified domain name and user ID</i> </h2></span> ... <table width=100% bgcolor="#ffffcc"> <tr> <td> <code><pre> [CrmException: No Microsoft Dynamics CRM user exists with the specified domain name and user ID] Microsoft.Crm.Authentication.WindowsAuthenticationProvider.Authenticate(HttpApplication application) +895 Microsoft.Crm.Authentication.AuthenticationStep.Authenticate(HttpApplication application) +125 Microsoft.Crm.Authentication.AuthenticationPipeline.Authenticate(HttpApplication application) +66 Microsoft.Crm.Authentication.AuthenticationEngine.Execute(Object sender, EventArgs e) +513 System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +92 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +64 </pre></code> </td> </tr> </table> <br> <hr width=100% size=1 color=silver> <b>Version Information:</b> Microsoft .NET Framework Version:2.0.50727.1433; ASP.NET Version:2.0.50727.1433 </font> </body> </html> <!-- [CrmException]: No Microsoft Dynamics CRM user exists with the specified domain name and user ID at Microsoft.Crm.Authentication.WindowsAuthenticationProvider.Authenticate(HttpApplication application) at Microsoft.Crm.Authentication.AuthenticationStep.Authenticate(HttpApplication application) at Microsoft.Crm.Authentication.AuthenticationPipeline.Authenticate(HttpApplication application) at Microsoft.Crm.Authentication.AuthenticationEngine.Execute(Object sender, EventArgs e) at System.Web.HttpApplication.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) --> --. There are some additional data: code for calling my web service: RecurrenceService serv = new RecurrenceService(); serv.Credentials = System.Net.CredentialCache.DefaultCredentials; string result = serv.UpdateSeries(); CRM4 url: "http://cw-dev-5/loader.aspx" custom service url: "http://cw-dev-5/RecurrenceService/RecurrenceService.asmx" the following code snippet System.Security.Principal.WindowsIdentity.GetCurrent().Name return: NT AUTHORITY\NETWORK SERVICE (I suppose it's a cause of error) Could someone suggest me any solution to resolve my issue?

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  • "Cannot open user default database" error with "User Instance=True"

    - by Keith
    I have a desktop application that uses Sql user instancing. This is my connection string: "Data Source=.\SqlExpress; AttachDbFilename=C:\path\file.mdf; Integrated Security=True; User Instance=True; Connect Timeout=100;" My application creates this DB, downloads a load of data into it from a web service and then does a lot of actions with it. The problem comes when I attempt to re-open the connection. I get a SqlException: "Cannot open user default database. Login failed. Login failed for user 'myDomain\myusername'." This error makes no sense in this context - I have no default database. I'm logging in to an instance created just for the current application, running separately from SqlExpress. There's no other way to connect to this DB. If I start the SqlExpress service and connect to the default instance it won't be visible. It only exists for this application. The file on disk is locked by the SqlExpress instance service running under the application. if I stop the app and restart it the connection works first time, but fails on re-opening. If I just stop the app I can delete the .mdf files and begin again, but it still crashes when I re-open the connection. As my app started the instance running as me my current user should have access to every DB in the instance. This doesn't happen for other users of the same code, which suggests that it's a SQL config issue. Does anyone have any idea what causes this and how to work around it?

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  • Silverlight 3 - Creating Custom Objects inside a Merged ResourceDictionary

    - by Tony Heupel
    I have custom classes that I currently instantiate within App.xaml as resources. I want to move these custom objects into a Merged ResourceDictionary, where they are used within styles, and keep them close to where they are used. Here's an example of what I want, arbitrarily using fake converter objects, but they could be any custom object... App.xaml (namespace declarations ommitted): <Application.Resources> <ResourceDictionary> <ResourceDictionary.MergedDictionaries> <ResourceDictionary Source="Merged.xaml" /> </ResourceDictionary.MergedDictionaries> <Style x:Key="SomeStyle" TargetType="SomeControl"> ... </Style> ... </ResourceDictionary> And then in Merged.xaml (namespace declarations omitted): <ResourceDictionary> <cvt:VisibilityToBoolConverter x:Key="BoolToVisibility" Inverted="True"/> <cvt:VisibilityToBoolConverter x:Key="NotBoolToVisibility" Inverted="True" Not="True"/> <Style x:Key="SomethingThatUsesVisibilityToBoolConvertersStyle" TargetType="SomeOtherControl"> .... </Style> </ResourceDictionary> The issue I'm seeing is this: when I create the BoolToVisibility and NotBoolToVisibility objects (as well instantiating other objects that are instances of custom classes I have created) just as part Application.Resources, they are created and all the references work as expected; however, when I move these into a Merged Resource Dictionary (as I have in the sample above), I get a malformed Application exception when the Silverlight application loads. I belive this to be an issue with how objects are instantiated differently in Merged Resource Dictionaries (I belive it is more of a lazy-load approach), but I would expect it to work nonetheless. I am very much able to add Style objects, DataTemplates, ControlTemplates, and the like. But when I want to create instances of custom classes that are named or keyed using Xaml, it works great inside of App.xaml's Application.Resources directly and Application.Resources/ResourceDictionary as well. As soon as they are moved into a merged dictionary, it throws the exception. Is this by design? Any other ideas that work? Thanks in advance...

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  • WCF and N-tier architecture

    - by kathy
    Hi,,, I’m working on an application which has been designed using n-tire application architecture .The application was developed in the .NET platform utilizing C#,VB.NEt, Framework 3.5, Dataset, WCF, asp.net update panel, JavaScript ,Josn, 3rd Party tools. my current proposed layout is such presentation layer - Business Logic - WCF - DAL-Data access The point Is: Is the above layout the right way to build SOA systems ? As always, your advice is greatly appreciated

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  • Rails 3 Flash Uploader

    - by klynch
    I am trying to get Uploadify working with Rails 3. However, I can't insert the middleware with the correct arguments. This is the Rails 2 way: ActionController::Dispatcher.middleware.insert_before( ActionController::Session::CookieStore, FlashSessionCookieMiddleware, ActionController::Base.session_options[:key] ) This is what I have so far for Rails 3: Rails.application.config.middleware.insert_before( Rails.application.config.session_store, FlashSessionCookieMiddleware, Rails.application.config.session_options[:key] ) However, this gives: kevin$hephaestus:$exposure [1035 | 0]% rake middleware (in /Users/kevin/Projects/exposure) rake aborted! protected method `session_options' called for #<Rails::Application::Configuration:0x101eb28d0> (See full trace by running task with --trace) zsh: exit 1 rake middleware When I comment out the session_options argument, the middleware is successfully inserted, but it can't do what it is supposed to. Any suggestions?

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  • Access Error when running windows program

    - by JPJedi
    I have a windows form application that uses microsoft access for the database on the backend. When I run that application I get an error that says access is not installed on the computer. I thought that if I included the reference that it will be included with what I release so the user would not have to have access installed. How do I include the Access Runtime to be distributed/installed when my application is installed?

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  • Socket programming C# vs C++

    - by klay
    Hi My company is willing to develop a server application, the application will use one port, clients will connect to this port and sending data every 3 minutes, casually the server will send some data. my questions are: how many connection can be handled when connecting to one port? which language Do we choose to write the Application (mainly between C# and C++)? (performance, ease of development) thanks

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  • How to modernize an enormous legacy database?

    - by smayers81
    I have a question, just looking for suggestions here. So, my application is 'modernizing' a desktop application by converting it to the web, with an ICEFaces UI and server side written in Java. However, they are keeping around the same Oracle database, which at current count has about 700-900 tables and probably a billion total records in the tables. Some individual tables have 250 million rows, many have over 25 million. Needless to say, the database is not scaling well. As a result, the performance of the application is looking to be abysmal. The architects / decision makers-that-be have all either refused or are unwilling to restructure the persistence. So, basically we are putting a fresh coat of paint on a functional desktop application that currently serves most user needs and does so with relative ease and quick performance. I am having trouble sleeping at night thinking of how poorly this application is going to perform and how difficult it is going to be for everyday users to do their job. So, my question is, what options do I have to mitigate this impending disaster? Is there some type of intermediate layer I can put in between the database and the Java code to speed up performance while at the same time keeping the database structure intact? Caching is obviously an option, but I don't see that as being a cure-all. Is it possible to layer a NoSQL DB in between or something?

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  • Getting Vars to bind properly across multiple files

    - by Alex Baranosky
    I am just learning Clojure and am having trouble moving my code into different files. I keep detting this error from the appnrunner.clj - Exception in thread "main" java.lang.Exception: Unable to resolve symbol: -run-application in this context It seems to be finding the namespaces fine, but then not seeing the Vars as being bound... Any idea how to fix this? Here's my code: APPLICATION RUNNER - (ns src/apprunner (:use src/functions)) (def input-files [(resource-path "a.txt") (resource-path "b.txt") (resource-path "c.txt")]) (def output-file (resource-path "output.txt")) (defn run-application [] (sort-files input-files output-file)) (-run-application) APPLICATION FUNCTIONS - (ns src/functions (:use clojure.contrib.duck-streams)) (defn flatten [x] (let [s? #(instance? clojure.lang.Sequential %)] (filter (complement s?) (tree-seq s? seq x)))) (defn resource-path [file] (str "C:/Users/Alex and Paula/Documents/SoftwareProjects/MyClojureApp/resources/" file)) (defn split2 [str delim] (seq (.split str delim))) (defstruct person :first-name :last-name) (defn read-file-content [file] (apply str (interpose "\n" (read-lines file)))) (defn person-from-line [line] (let [sections (split2 line " ")] (struct person (first sections) (second sections)))) (defn formatted-for-display [person] (str (:first-name person) (.toUpperCase " ") (:last-name person))) (defn sort-by-keys [struct-map keys] (sort-by #(vec (map % [keys])) struct-map)) (defn formatted-output [persons output-number] (let [heading (str "Output #" output-number "\n") sorted-persons-for-output (apply str (interpose "\n" (map formatted-for-display (sort-by-keys persons (:first-name :last-name)))))] (str heading sorted-persons-for-output))) (defn read-persons-from [file] (let [lines (read-lines file)] (map person-from-line lines))) (defn write-persons-to [file persons] (dotimes [i 3] (append-spit file (formatted-output persons (+ 1 i))))) (defn sort-files [input-files output-file] (let [persons (flatten (map read-persons-from input-files))] (write-persons-to output-file persons)))

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  • uninstall string

    - by Sakhawat Ali
    Hi experts, I am developing an desktop based application using VB.NET, similar to add/remove program. everything was working fine until i start working on uninstall feature. Now what am i doing is that i get the uninstall string of the specific application from the registry and use System.Diagnostics.Process to run UninstallString. Dim proc As New Process() proc.StartInfo.FileName =UninstallString proc.Start() proc.WaitForExit() proc.Close() latter i found that it only work for straight file paths only, i mean with no command line argument like: C:\program files\someApp\uninstall.exe I make a list of list of all UninstallStrings of all application installed on my machine. i found few things like application installed using MSI, some were with rundll32 and few were with straight file path with some command argument like: My Silverlight SDK UninstallString, MSI Example MsiExec.exe /X{2012098D-EEE9-4769-8DD3-B038050854D4} My JetAudio UninstallString, RunDll32 Example RunDll32 C:\PROGRA~1\COMMON~1\INSTAL~1\engine\6\INTEL3~1\Ctor.dll,LaunchSetup "C:\Program Files\InstallShield Installation Information{91F34319-08DE-457A-99C0-0BCDFAC145B9}\Setup.exe" -l0x9 My Google Chrome UninstallString, straight file path with command argument example "C:\Program Files\Google\Chrome\Application\5.0.375.55\Installer\setup.exe" -uninstall The code i mentioned above does not work for these. i did some string parsing, separate two thing from UninstallString one is Filename and other is Arguments. like for MSI, filename is MSIEXEC.EXE and argument will be rest of the string, same for RunDLL32, same for straight file path with command argument. Now what am i facing is that, after every 2 or 3 days i come to know that this type of unistallstring is also not working. and why is that not working because it is a new type maybe abc C:\program files\someapp.exe -ddd so parse it too. is there any better way of doing that rather then parsing the string.

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  • Aquatic Prime on 10.6?

    - by Kevin
    Hello, I have 2 applications that I use with Aquatic Prime. One is an application just with the Aquatic Prime framework, and the other is an application that I've been working on that has been incorporated with the Aquatic Prime framework. The first application I mentioned before has its SDK set to 10.5 with the architecture to 32-bit. The second application I made has its SDK that is set to 10.6 (which it has to since I need NSRunningApplication) and its architecture to 32-bit. Now my question is, whenever I debug my first application it works perfectly fine, but with my second it gives me this interrupted error right after Running. What's going wrong? I've tried doing some breakpoints like "objc-exception-throw" but all it says is stopped at breakpoint 1. I need 10.6 in my application, but I also need Aquatic Prime. Can anyone help me solve this problem? Ok here's the one from the stack trace which I have no idea how to read: 0x91cdff11 <+0000> push %ebp 0x91cdff12 <+0001> mov %esp,%ebp 0x91cdff14 <+0003> sub $0x28,%esp 0x91cdff17 <+0006> mov %ebx,-0xc(%ebp) 0x91cdff1a <+0009> mov %esi,-0x8(%ebp) 0x91cdff1d <+0012> mov %edi,-0x4(%ebp) 0x91cdff20 <+0015> call 0x91cdff25 <objc_exception_throw+20> 0x91cdff25 <+0020> pop %ebx 0x91cdff26 <+0021> mov 0x8(%ebp),%esi 0x91cdff29 <+0024> lea 0xe4cbb8b(%ebx),%edi 0x91cdff2f <+0030> mov 0x4(%edi),%eax 0x91cdff32 <+0033> test %eax,%eax 0x91cdff34 <+0035> jne 0x91cdff3b <objc_exception_throw+42> 0x91cdff36 <+0037> call 0x91ce4f53 <set_default_handlers> 0x91cdff3b <+0042> mov %esi,(%esp) 0x91cdff3e <+0045> nop 0x91cdff3f <+0046> nopl 0x0(%eax) 0x91cdff43 <+0050> mov %esi,(%esp) 0x91cdff46 <+0053> call *0x4(%edi) 0x91cdff49 <+0056> lea 0xfd44(%ebx),%eax 0x91cdff4f <+0062> mov %eax,(%esp) 0x91cdff52 <+0065> call 0x91ce4e1f <_objc_fatal> The the GDB tells me its all good: run [Switching to process 990] Running… 2009-10-14 15:20:33.233 ApplicationName[990:a0f] init Sincerely, Kevin

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  • Auto switching databases from a rails app gracefully from the ApplicationController?

    - by Zaqintosh
    I've seen this post a few times, but haven't really found the answer to this specific question. I'd like to run a rails application that based on the detected request.host (imagine I have two subdomains points to the same rails app and server ip address: myapp1.domain.com and myapp2.domain.com). I'm trying to have myapp1 use the default "production" database, and myapp2 requests always use the alternative remote database. Here is an example of what I tried to do in Application controller that did not work: class ApplicationController < ActionController::Base helper :all before_filter :use_alternate_db private def use_alternate_db if request.host == 'myapp1.domain.com' regular_db elsif request.host == 'myapp2.domain.com' alternate_db end end def regular_db ActiveRecord::Base.establish_connection :production end def alternate_db ActiveRecord::Base.establish_connection( :adapter => 'mysql', :host => '...', :username => '...', :password => '...', :database => 'alternatedb' ) end end The problem is when it switches databases using this method, all connections (including valid sessions across the different subdomains get interrupted...). All examples online have people controlling database connectivity at the model level, but this would involve adding code all over my application. Is there some way to globally switch database connections on a per-request basis in the manner I'm suggesting above WITHOUT having to inject code all over my application? The added complexity here is I'm using Heroku as a hosting provider, so I have no control at the apache / rails application server level. I have looked at solutions like dbcharmer and magicmodels, but none seem to show examples of doing it in the manner that I'm trying to. Thanks for any help!

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  • Android: Unregister camera button

    - by niko
    Hi, I tried to bind some actions to a camera button: videoPreview.setOnKeyListener(new OnKeyListener(){ public boolean onKey(View v, int keyCode, KeyEvent event){ if(event.getAction() == KeyEvent.ACTION_DOWN) { switch(keyCode) { case KeyEvent.KEYCODE_CAMERA: //videoPreview.onCapture(settings); onCaptureButton(); ... } } return false; } }); Pressing the button however the application crashes because the original Camera application starts. Does anyone know how to prevent Camera application start when the camera button is pressed?

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  • weird swing heavyweight object lightweight objects problem

    - by Yoav Schwartz
    Hello, We have a problem in our swing based application since we've upgraded our java version from 6u5 to 6u18 (The application runs over WinXP). Our application contains a Canvas object which resides in a JFrame. The application draws things on the canvas. Every time we drag a lightweight swing object (popup or another frame) over the canvas, it has a refresh problem. It blinks - becomes black. The problem only resolves after we move the swing component away from the canvas and click on it again. We think this problem is related to the fact the the canvas is a heavyweight object. And we know there were changes done in the new versions of java on the mixing of heavyweight and lightweight objects issue. Some more details: 1) Our problem reproduces in java 6u14 and 6u16. 2) Everything works fine in java 6u5. Another strange thing: We have 2 types of stations running our application. The first type has a ATI FireGL7100 PCI-E graphics card. The second type has a Matrox G450 PCI graphic card. The problem does not reproduce on the Matrox based station in any java version. One more thing: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6829858 - looks similar to our problem. Is our problem familiar? Do you have any suggestions (workarounds, ideas how the difference in graphics cards is connected to this problem) Hope I was clear enough, Yoav

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  • What is Causing this IIS 7 Web Service Sporadic Connectivity Error?

    - by dpalau
    On sporadic occasions we receive the following error when attempting to call an .asmx web service from a .Net client application: "The underlying connection was closed: A connection that was expected to be kept alive was closed by the server. Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host." By sporadic I mean that it might occur zero, once every few days, or a half-dozen times a day for some users. It will never occur for the first web service call of a user. And the subsequent (usually the same) call will always work immediately after the failure. The failures happen across a variety of methods in the service and usually happens between 15-20 seconds (according to the log) from the time of the request. Looking in the IIS site log for the particular call will show one or the other of the following windows error codes: 121: The semaphore timeout period has elapsed. 1236: The network connection was aborted by the local system. Some additional environment details: Running on internal network web farm consisting of two servers running IIS7 on Windows Server 2008 OS. These problems did not occur when running in an older IIS6 web farm of three servers running on Windows Server 2003 (and we use a single IIS6/2003 instance for our development and staging environments with no issues). EDIT: Also, all of these server instances are VMWare virtual machines, not sure if that is a surprise anymore or not. The web service is a .Net 2.0/3.5 compiled .asmx web service that has its own application pool (.Net 2.0, integrated pipeline). Only has Windows Authentication enabled. We have another web service on the farm that uses the same physical path as the primary service, the only difference being that Basic Authentication is enabled. This is used for a portion of our ERP system. Have tried using the same and different application pool - no effect on the error. This site isn't hit as often as the primary site and has never had an error. As mentioned, the error will only happen when called from the .Net client - not from other applications. The client application is always creating a new web service object for each request and setting the service credentials to System.Net.CredentialCache.DefaultCredentials. The application is either deployed locally to a client or run in a Citrix server session. Those users running in Citrix doesn't seem to experience the issue, only locally deployed clients. The Citrix servers and the web farm are located in the same physical location and are located in the same IP range (10.67.xx.xx). Locally deployed clients experiencing the error are located elsewhere (10.105.xx.xx, 10.31.xx.xx). I've checked the OS logs to see if I can see any problems but nothing really sticks out. EDIT: Actually, I myself just ran into the error a little bit ago. I decided to check out the logs again and saw that there was a Security log entry of "Audit Failure" at the 'same' time (IIS log entry at 1:39:59, event log entry at 1:39:50). Not sure if this is a coincidence or not, I'll have to check out the logs of previous errors. I'm probably grasping for straws but the details: Log Name: Security Source: Microsoft-Windows-Security-Auditing Date: 7/8/2009 1:39:50 PM Event ID: 5159 Task Category: Filtering Platform Connection Level: Information Keywords: Audit Failure User: N/A Computer: is071019.<**.net Description: The Windows Filtering Platform has blocked a bind to a local port. Application Information: Process ID: 1260 Application Name: \device\harddiskvolume1\windows\system32\svchost.exe Network Information: Source Address: 0.0.0.0 Source Port: 54802 Protocol: 17 Filter Information: Filter Run-Time ID: 0 Layer Name: Resource Assignment Layer Run-Time ID: 36 I've also tried to use Failed Request Tracing in IIS7 but the service call never actually gets to where FRT can capture it (even though the failure is logged in the web service log). The network infrastructure group said they checked out the DNS and any NIC settings are correct so there is no 'flapping'. Everything pans out. I'm not sure that they checked out any domain controller servers though to see if that could be an issue. Any ideas? Or any other debugging strategies to get to the bottom of this? I'm just the developer in charge of the software and don't really have the knowledge on what to investigate from the networking side of things - although it does sound like a networking issue to me based on what is happening. Thanks in advance for any help.

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  • ASP.net dealing issues with production system

    - by nettguy
    First time i am going to work on (maintenance project) application that is already in production.The application was developed in ASP.net 3.5/C# 3.0(web forms) with jQuery,Ajax,Sql server 2005 and microsoft enterprise library 4.0.,WCF services. Questions (bear with me if my question is wrong) 1) Is it possible to use Visual Studio (2008 with SP1) to debug the remote application (i.e already in production)?.What are the tools do i need to use in order to keep track the things in case something went wrong? 2) Simply looking into Log file ,will solve the issues? 3) After having done with enhancements,is it possible to directly deploy the DLLs into production server.Won't it affect the running application? Please guide me what are the procedures i need to follow.Client is ready to provide any tools for my support.(What are the area do i need to aware to handle production system) Thanks in advance.

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  • C++ project type: unicode vs multi-byte; pros and cons

    - by Stefan Valianu
    I'm wondering what the Stack Overflow community thinks when it comes to creating a project (thinking primarily c++ here) with a unicode or a multi-byte character set. Are there pros to going Unicode straight from the start, implying all your strings will be in wide format? Are there performance issues / larger memory requirements because of a standard use of a larger character? Is there an advantage to this method? Do some processor architectures handle wide characters better? Are there any reasons to make your project Unicode if you don't plan on supporting additional languages? What reasons would one have for creating a project with a multi-byte character set? How do all of the factors above collide in a high performance environment (such as a modern video game) ?

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  • Cloud-aware programming and help choosing a good framework

    - by Shoaibi
    How can i write a cloud-aware application? e.g. an application that takes benefit of being deployed on cloud. Is it same as an application that runs or a vps/dedicated server? if not then what are the differences? are there any design changes? What are the procedures that i need to take if i am to migrate an application to cloud-aware? Also i am about to implement a web application idea which would need features like security, performance, caching, and more importantly free. I have been comparing some frameworks and found that django has least RAM/CPU usage and works great in prefork+threaded mode, but i have also read that django based sites stop to respond with huge load of connections. Other frameworks that i have seen/know are Zend, CakePHP, Lithium/Cake3, CodeIgnitor, Symfony, Ruby on Rails.... So i would leave this to your opinion as well, suggest me a good free framework based on my needs. Finally thanks for reading the essay ;)

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  • best solution to use a DLL/Driver?

    - by Alexander
    Hi, Im working with a CD722UN Customer Display for our POS application. it comes with a USB2.0 connection and a installation package containing a driver ect.. now, for my application. how should i do when i want to access this driver? at the moment i'm using the "CD722UN application"s .dll path but that can warry from clients OS ect.. Declare Function opencd722usb Lib "C:\Program\cd7220 USB\cd722dusb.dll" () As Boolean Declare Function writecd722usb Lib "C:\Program\cd7220 USB\cd722dusb.dll" (ByRef dataoutput As Byte, ByVal Length As Integer) As Integer Declare Function readcd722usb Lib "C:\Program\cd7220 USB\cd722dusb.dll" (ByRef DataInput As Byte, ByVal size As Integer) As Integer Declare Function closecd722usb Lib "C:\Program\cd7220 USB\cd722dusb.dll" () As Boolean my first thought was to first check if there was a device installed in the device manager and somehow use the driver from there??? or distribute the .dll inside our application folder and use searchpath ""installed directory"\cd722dusb.dll" what is the best solution? thanks in advance!

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