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  • Remove a tag type from the view (involves alphabetical pagination)

    - by user284194
    I have an index view that lists all of the tags for my Entry and Message models. I would like to only show the tags for Entries in this view. I'm using acts-as-taggable-on. Tags Controller: def index @letter = params[:letter].blank? ? 'a' : params[:letter] @tagged_entries = Tagging.find_all_by_taggable_type('Entry').map(&:taggable) @title = "Tags" if params[:letter] == '#' @data = Tag.find(@tagged_entries, :conditions => ["name REGEXP ?", "^[^a-z]"], :order => 'name', :select => "id, name") else @data = Tag.find(@tagged_entries, :conditions => ["name LIKE ?", "#{params[:letter]}%"], :order => 'name', :select => "id, name") end respond_to do |format| flash[:notice] = 'We are currently in Beta. You may experience errors.' format.html end end tags#index: <% @data.each do |t| %> <div class="tag"><%= link_to t.name.titleize, tag_path(t) %></div> <% end %> I want to show only the taggable type 'Entry' in the view. Any ideas? Thank you for reading my question. SECOND EDIT: Tags Controller: def index @title = "Tags" @letter = params[:letter].blank? ? 'a' : params[:letter] @taggings = Tagging.find_all_by_taggable_type('Entry', :include => [:tag, :taggable]) @tags = @taggings.map(&:tag).sort_by(&:name).uniq @tagged_entries = @taggings.map(&:taggable)#.sort_by(&:id)#or whatever if params[:letter] == '#' @data = Tag.find(@tags, :conditions => ["name REGEXP ?", "^[^a-z]"], :order => 'name', :select => "id, name") else @data = Tag.find(@tags, :conditions => ["name LIKE ?", "#{params[:letter]}%"], :order => 'name', :select => "id, name") end respond_to do |format| format.html end end tags#index: <% @data.each do |t| %> <div class="tag"><%= link_to t.name.titleize, tag_path(t) %></div> <% end %> Max Williams' code works except when I click on my alphabetical pagination links. The error I'm getting [after I clicked on the G link of the alphabetical pagination] reads: Couldn't find all Tags with IDs (77,130,115,...) AND (name LIKE 'G%') (found 9 results, but was looking for 129) Can anyone point me in the right direction?

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  • Searches (and general querying) with HBase and/or Cassandra (best practices?)

    - by alexeypro
    I have User model object with quite few fields (properties, if you wish) in it. Say "firstname", "lastname", "city" and "year-of-birth". Each user also gets "unique id". I want to be able to search by them. How do I do that properly? How to do that at all? My understanding (will work for pretty much any key-value storage -- first goes key, then value) u:123456789 = serialized_json_object ("u" as a simple prefix for user's keys, 123456789 is "unique id"). Now, thinking that I want to be able to search by firstname and lastname, I can save in: f:Steve = u:384734807,u:2398248764,u:23276263 f:Alex = u:12324355,u:121324334 so key is "f" - which is prefix for firstnames, and "Steve" is actual firstname. For "u:Steve" we save as value all user id's who are "Steve's". That makes every search very-very easy. Querying by few fields (properties) -- say by firstname (i.e. "Steve") and lastname (i.e. "l:Anything") is still easy - first get list of user ids from "f:Steve", then list from "l:Anything", find crossing user ids, an here you go. Problems (and there are quite a few): Saving, updating, deleting user is a pain. It has to be atomic and consistent operation. Also, if we have size of value limited to some value - then we are in (potential) trouble. And really not of an answer here. Only zipping the list of user ids? Not too cool, though. What id we want to add new field to search by. Eventually. Say by "city". We certainly can do the same way "c:Los Angeles" = ..., "c:Chicago" = ..., but if we didn't foresee all those "search choices" from the very beginning, then we will have to be able to create some night job or something to go by all existing User records and update those "c:CITY" for them... Quite a big job! Problems with locking. User "u:123" updates his name "Alex", and user "u:456" updates his name "Alex". They both have to update "f:Alex" with their id's. That means either we get into overwriting problem, or one update will wait for another (and imaging if there are many of them?!). What's the best way of doing that? Keeping in mind that I want to search by many fields? P.S. Please, the question is about HBase/Cassandra/NoSQL/Key-Value storages. Please please - no advices to use MySQL and "read about" SELECTs; and worry about scaling problems "later". There is a reason why I asked MY question exactly the way I did. :-)

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  • how to increase speed of my execution

    - by ratty
    i am creating project in c#.net. my execution process is very slow. i also found the reason for that.in one method i copied the values from one list to another.that list consists more 3000values for every row . how can i speed up this process.any body help me

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  • How to "signal" interested child processes (without signals)?

    - by Teddy
    I'm trying to find a good and simple method to signal child processes (created through SocketServer with ForkingMixIn) from the parent process. While Unix signals could be used, I want to avoid them since only children who are interested should receive the signal, and it would be overkill and complicated to require some kind of registration mechanism to identify to the parent process who is interested. (Please don't suggest threads, as this particular program won't work with threads, and thus has to use forks.)

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  • Temporarily impersonate and enable privileges?

    - by Luke
    We maintain a DLL that does a lot of system-related things; traversing the file system, registry, etc. The callers of this DLL may or may not be using impersonation. In order to better support all possible scenarios I'm trying to modify it to be smarter. I'll use the example of deleting a file. Currently we just call DeleteFile(), and if that fails that's the end of that. I've come up with the following: BOOL TryReallyHardToDeleteFile(LPCTSTR lpFileName) { // 1. caller without privilege BOOL bSuccess = DeleteFile(lpFileName); DWORD dwError = GetLastError(); if(!bSuccess && dwError == ERROR_ACCESS_DENIED) { // failed with access denied; try with privilege DWORD dwOldRestorePrivilege = 0; BOOL bHasRestorePrivilege = SetPrivilege(SE_RESTORE_NAME, SE_PRIVILEGE_ENABLED, &dwOldRestorePrivilege); if(bHasRestorePrivilege) { // 2. caller with privilege bSuccess = DeleteFile(lpFileName); dwError = GetLastError(); SetPrivilege(SE_RESTORE_NAME, dwOldRestorePrivilege, NULL); } if(!bSuccess && dwError == ERROR_ACCESS_DENIED) { // failed with access denied; if caller is impersonating then try as process HANDLE hToken = NULL; if(OpenThreadToken(GetCurrentThread(), TOKEN_QUERY | TOKEN_IMPERSONATE, TRUE, &hToken)) { if(RevertToSelf()) { // 3. process without privilege bSuccess = DeleteFile(lpFileName); dwError = GetLastError(); if(!bSuccess && dwError == ERROR_ACCESS_DENIED) { // failed with access denied; try with privilege bHasRestorePrivilege = SetPrivilege(SE_RESTORE_NAME, SE_PRIVILEGE_ENABLED, &dwOldRestorePrivilege); if(bHasRestorePrivilege) { // 4. process with privilege bSuccess = DeleteFile(lpFileName); dwError = GetLastError(); SetPrivilege(SE_RESTORE_NAME, dwOldRestorePrivilege, NULL); } } SetThreadToken(NULL, hToken); } CloseHandle(hToken); hToken = NULL; } } } if(!bSuccess) { SetLastError(dwError); } return bSuccess; } So first it tries as the caller. If that fails with access denied, it temporarily enables privileges in the caller's token and tries again. If that fails with access denied and the caller is impersonating, it temporarily unimpersonates and tries again. If that fails with access denied, it temporarily enables privileges in the process token and tries again. I think this should handle pretty much any situation, but I was wondering if there was a better way to achieve this? There are a lot of operations that we would potentially want to use this method (i.e. pretty much any operation that accesses securable objects).

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  • Aborting upload from a servlet

    - by Zizzencs
    I'd like to limit the size of the file that can be uploaded to an application. To achieve this, I'd like to abort the upload process from the server side when the size of the file being uploaded exceeds a limit. Is there a way to abort an upload process from the server side without waiting the HTTP request to finish?

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  • Read email from incoming mail server(POP)

    - by nccsbim071
    Hi, I have used an open source code from codeproject to read email from incoming mail server(POP Server). The code can be found at following location: http://www.codeproject.com/KB/IP/Pop3MimeClient.aspx So far it works fine i can read emails. My objective of using this code was to retrieve emails from POP server and process them. My problem is: If i use gmails pop server "pop.gmail.com" and run the appplication. I get only those emails that i have not retrieved since the last time i run the application. but if i use my clients pop server everytime i run the application i get all the emails in the pop server. for example: If i use gmail pop server: pop.gmail.com I have three emails in the pop server. I haven't run the application. I am running the application for the first time. Application reads the email, this time i will get 3 all the three email. I run the application second time, my application will not read any emails this time because i have already read the 3 existing one. This is fine, this is what i want. Now i send email to pop.gmail.com. I run the application again for the third time, this time i will only get the email that has just arrived that is the fourth one. This is good behaviour, this is what i want. But if i use my clients pop server: No matter how many times i run the application, it reads all the emails in the mail box. This will create problem for me, because i am thinking of building a window service that will read emails from pop server and process them. This service will run continuously. I will process emails in the pop serve then sleep for let's say 1 minute and the process the emails again. If the application downloaded from codeproject reads all the emails all the time, my clients mailbox can have like thousands for email in this mail box, so this would not be feasible for me. Is there some settings that is to be made at my client's pop server that will allow my application to retrieve only those emails that i have not read since last time i run the service or any help Please help, thanks,

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  • User defined datatypes CANNOT be returned in web service in Jboss 5.0.1

    - by user1503117
    I am using Jboss 5.0.1, jdk 1.6.0 update 31 and implementing an EJB as a web service and my method in web service module returns an Array of JavaBean objects in my example BenefitLevel array object. When executed in JBoss it throws the following exception: 08:57:08,552 ERROR [ServiceProxy] Service error javax.xml.rpc.ServiceException: Cannot create proxy at org.jboss.ws.core.jaxrpc.client.ServiceImpl.getPort(ServiceImpl.java:359) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.jboss.ws.core.jaxrpc.client.ServiceProxy.invoke(ServiceProxy.java:127) at $Proxy105.getCarrierWSSEIPort(Unknown Source) at org.apache.jsp.index_jsp._jspService(index_jsp.java:92) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:369) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:322) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:249) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92) at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126) at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:601) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) at java.lang.Thread.run(Thread.java:662) Caused by: java.lang.IllegalStateException: Cannot synchronize to any of these methods: public abstract stubs.BenefitLevel[] stubs.CarrierWSSEI.getActiveBenData() throws java.rmi.RemoteException OperationMetaData: qname={urn:CarrierWS/wsdl}getActiveBenData javaName=getActiveBenData style=rpc/literal oneWay=false soapAction= ReturnMetaData: xmlName=result partName=result xmlType={urn:CarrierWS/types/arrays/com/test/cas/carrier/plan/info}BenefitLevelArray javaType=com.benefitpartnersinc.cas.carrier.plan.info.BenefitLevel[] mode=OUT inHeader=false index=-1 at org.jboss.ws.metadata.umdm.OperationMetaData.eagerInitialize(OperationMetaData.java:491) at org.jboss.ws.metadata.umdm.EndpointMetaData.eagerInitializeOperations(EndpointMetaData.java:557) at org.jboss.ws.metadata.umdm.EndpointMetaData.initializeInternal(EndpointMetaData.java:541) at org.jboss.ws.metadata.umdm.EndpointMetaData.setServiceEndpointInterfaceName(EndpointMetaData.java:220) at org.jboss.ws.core.jaxrpc.client.ServiceImpl.getPort(ServiceImpl.java:345) ... 33 more 08:57:08,567 ERROR [STDERR] javax.xml.rpc.ServiceException: Cannot create proxy 08:57:08,567 ERROR [STDERR] at org.jboss.ws.core.jaxrpc.client.ServiceImpl.getPort(ServiceImpl.java:359) 08:57:08,567 ERROR [STDERR] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 08:57:08,567 ERROR [STDERR] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 08:57:08,567 ERROR [STDERR] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 08:57:08,567 ERROR [STDERR] at java.lang.reflect.Method.invoke(Method.java:597) 08:57:08,567 ERROR [STDERR] at org.jboss.ws.core.jaxrpc.client.ServiceProxy.invoke(ServiceProxy.java:127) 08:57:08,567 ERROR [STDERR] at $Proxy105.getCarrierWSSEIPort(Unknown Source) 08:57:08,567 ERROR [STDERR] at org.apache.jsp.index_jsp._jspService(index_jsp.java:92) 08:57:08,567 ERROR [STDERR] at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) 08:57:08,567 ERROR [STDERR] at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) 08:57:08,567 ERROR [STDERR] at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:369) 08:57:08,567 ERROR [STDERR] at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:322) 08:57:08,567 ERROR [STDERR] at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:249) 08:57:08,567 ERROR [STDERR] at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) 08:57:08,567 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) 08:57:08,567 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 08:57:08,567 ERROR [STDERR] at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) 08:57:08,567 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) 08:57:08,567 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 08:57:08,567 ERROR [STDERR] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235) 08:57:08,567 ERROR [STDERR] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) 08:57:08,567 ERROR [STDERR] at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190) 08:57:08,567 ERROR [STDERR] at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92) 08:57:08,567 ERROR [STDERR] at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126) 08:57:08,567 ERROR [STDERR] at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70) 08:57:08,567 ERROR [STDERR] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) 08:57:08,567 ERROR [STDERR] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) 08:57:08,567 ERROR [STDERR] at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158) 08:57:08,567 ERROR [STDERR] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) 08:57:08,567 ERROR [STDERR] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330) 08:57:08,567 ERROR [STDERR] at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829) 08:57:08,567 ERROR [STDERR] at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:601) 08:57:08,567 ERROR [STDERR] at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) 08:57:08,567 ERROR [STDERR] at java.lang.Thread.run(Thread.java:662) 08:57:08,567 ERROR [STDERR] Caused by: java.lang.IllegalStateException: Cannot synchronize to any of these methods: public abstract stubs.BenefitLevel[] stubs.CarrierWSSEI.getActiveBenData() throws java.rmi.RemoteException OperationMetaData: qname={urn:CarrierWS/wsdl}getActiveBenData javaName=getActiveBenData style=rpc/literal oneWay=false soapAction= ReturnMetaData: xmlName=result partName=result xmlType={urn:CarrierWS/types/arrays/com/test/cas/carrier/plan/info}BenefitLevelArray javaType=com.test.cas.carrier.plan.info.BenefitLevel[] mode=OUT inHeader=false index=-1 08:57:08,567 ERROR [STDERR] at org.jboss.ws.metadata.umdm.OperationMetaData.eagerInitialize(OperationMetaData.java:491) 08:57:08,567 ERROR [STDERR] at org.jboss.ws.metadata.umdm.EndpointMetaData.eagerInitializeOperations(EndpointMetaData.java:557) 08:57:08,567 ERROR [STDERR] at org.jboss.ws.metadata.umdm.EndpointMetaData.initializeInternal(EndpointMetaData.java:541) 08:57:08,567 ERROR [STDERR] at org.jboss.ws.metadata.umdm.EndpointMetaData.setServiceEndpointInterfaceName(EndpointMetaData.java:220) 08:57:08,567 ERROR [STDERR] at org.jboss.ws.core.jaxrpc.client.ServiceImpl.getPort(ServiceImpl.java:345) 08:57:08,567 ERROR [STDERR] ... 33 more My Web client code is as follows : <%@page import="java.util.Hashtable"%> <%@page import="javax.naming.*,com.q4.*,javax.xml.rpc.Stub,stubs.CarrierWS,stubs.CarrierWSSEI,stubs.CarrierWSSEI_Impl"%> <%@page contentType="text/html" pageEncoding="UTF-8"%> <!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>JSP Page</title> </head> <body> <h1>Hello World!</h1> <% try { InitialContext ic = new InitialContext( ); CarrierWS carrierws = (CarrierWS)ic.lookup("java:comp/env/service/CarrierWS"); out.println("========================" + carrierws); CarrierWSSEI sei = carrierws.getCarrierWSSEIPort(); out.println("Invoking the service please wait ............." + carrierws.getCarrierWSSEIPort()); ((Stub)sei)._setProperty(Stub.ENDPOINT_ADDRESS_PROPERTY,"http://localhost:8080/TestWS3WAR/CarrierWS"); out.println("Invoking the service please wait ............." + sei.getActiveBenData().length); } catch(Exception e) { out.println("Exception occurred : " + e.getMessage()); e.printStackTrace(); } %> </body> </html> Please help me where I am going wrong.

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  • How do I stop Mercurial's "hg serve -d" service under Windows?

    - by Joel
    I'm technically savvy but don't have extensive experience with servers/daemons (I'm a Windows guy, so...command lines intimidate me). I started a Mercurial server using the hg serve -d command, and all was well. Now, I want to stop it, and can't find a process to kill. Does anybody know the process name or a relatively simply CLI command to get it done?

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  • Error while starting web application.

    - by Lalit
    When you right-click a Web site in the Microsoft Internet Information Services (IIS) Microsoft Management Console (MMC) snap-in, and then you click Start, the Web site does not start and you receive the following error message: The process cannot access the file because it is being used by another process. What have to do.

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  • How to debug Sharepoint solution/feature through Visual studio ?

    - by pointlesspolitics
    Recently I tried to install a webpart through wspbuilder utility to the Sharepoint Site. I have created, built and deployed a project to the 12 hive. After that installed the solution through Cental Administration Site and activated in the site collection. I just wonder how can I debug the complex feature/solution ? Because both processes (build-deploy and activate) totally independent, how can I attach a process with the worker process ?

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  • Running DllImport commands from CreateRemoteThread

    - by Gbps
    I have a function named Msg that's imported from a dll named tier0.dll. I can DllImport this just fine, but the command only works when the dll is attached to another process which can complete the Msg command. Using CreateRemoteThread, it is possible that I could call Msg using C# while still letting it have access to the variables of the attached process it needs to complete the command? Thanks!

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  • PHP echo if post equals, help

    - by user342391
    I am trying to echo the action for my form if a post equals 'paypal' This is what I have: <?php if $_POST['method'] == 'paypal' echo 'action="paypal/process.php"' else echo 'action="moneybookers/process.php" '?> Do i need to print the variable before I do this? what am I doing wrong? I get this error: Parse error: syntax error, unexpected T_VARIABLE, expecting '(' in /var/www/account/credits/credit_amount.php on line 27

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  • compiler warning at C++ template base class

    - by eike
    I get a compiler warning, that I don't understand in that context, when I compile the "Child.cpp" from the following code. (Don't wonder: I stripped off my class declarations to the bare minuum, so the content will not make much sense, but you will see the problem quicker). I get the warning with VS2003 and VS2008 on the highest warning level. The code AbstractClass.h : #include <iostream> template<typename T> class AbstractClass { public: virtual void Cancel(); // { std::cout << "Abstract Cancel" << std::endl; }; virtual void Process() = 0; }; //outside definition. if I comment out this and take the inline //definition like above (currently commented out), I don't get //a compiler warning template<typename T> void AbstractClass<T>::Cancel() { std::cout << "Abstract Cancel" << std::endl; } Child.h : #include "AbstractClass.h" class Child : public AbstractClass<int> { public: virtual void Process(); }; Child.cpp : #include "Child.h" #include <iostream> void Child::Process() { std::cout << "Process" << std::endl; } The warning The class "Child" is derived from "AbstractClass". In "AbstractClass" there's the public method "AbstractClass::Cancel()". If I define the method outside of the class body (like in the code you see), I get the compiler warning... AbstractClass.h(7) : warning C4505: 'AbstractClass::Cancel' : unreferenced local function has been removed with [T=int] ...when I compile "Child.cpp". I do not understand this, because this is a public function and the compiler can't know if I later reference this method or not. And, in the end, I reference this method, because I call it in main.cpp and despite this compiler warning, this method works if I compile and link all files and execute the program: //main.cpp #include <iostream> #include "Child.h" int main() { Child child; child.Cancel(); //works, despite the warning } If I do define the Cancel() function as inline (you see it as out commented code in AbstractClass.h), then I don't get the compiler warning. Of course my program works, but I want to understand this warning or is this just a compiler mistake? Furthermore, if do not implement AbsctractClass as a template class (just for a test purpose in this case) I also don't get the compiler warning...?

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  • Cross field validation in jsf h:datatable using p:calendar

    - by Matt Broekhuis
    I noticed this question was asked, but it has not been answered correctly. I have a datatable that has two columns start date and end date. Both contain primefaces p:calendar controls in them. I need to ensure that for each row that the date in column1 is not after the date in column2. I would like to tie this into the JSF validation framework, but I'm having trouble. i've tried marking the datatable rowStatePreserved="true" , this allows me to get the values, but something is still wrong as when it fails, all the values in the first row overwrite all the other values. What am I doing wrong, or should I be using a completely different strategy? xhtml code <h:form> <f:event type="postValidate" listener="#{bean.doCrossFieldValidation}"/> <p:dataTable id="eventDaysTable" value="#{course.courseSchedules}" var="_eventDay" styleClass="compactDataTable" > <p:column id="eventDayStartColumn"> <f:facet name="header"> Start </f:facet> <p:calendar id="startDate" required="true" value="#{_eventDay.startTime}" pattern="MM/dd/yyyy hh:mm a"/> </p:column> <p:column id="eventDayEndColumn"> <f:facet name="header"> End </f:facet> <p:calendar id="endDate" required="true" value="#{_eventDay.endTime}" pattern="MM/dd/yyyy hh:mm a"/> </p:column> </p:dataTable> </h:form> validationCode public void doCrossFieldValidation(ComponentSystemEvent cse) { UIData eventsDaysStable = (UIData) cse.getComponent().findComponent("eventDaysTable"); if (null != eventsDaysStable && eventsDaysStable.isRendered()) { Iterator<UIComponent> startDateCalendarIterator = eventsDaysStable.findComponent("eventDayStartColumn").getChildren().iterator(); Iterator<UIComponent> endDateCalendarIterator = eventsDaysStable.findComponent("eventDayEndColumn").getChildren().iterator(); while (startDateCalendarIterator.hasNext() && endDateCalendarIterator.hasNext()) { org.primefaces.component.calendar.Calendar startDateComponent = (org.primefaces.component.calendar.Calendar) startDateCalendarIterator.next(); org.primefaces.component.calendar.Calendar endDateComponent = (org.primefaces.component.calendar.Calendar) endDateCalendarIterator.next(); Date startDate = (Date) startDateComponent.getValue(); Date endDate = (Date) endDateComponent.getValue(); if (null != startDate && null != endDate && startDate.after(endDate)) { eventScheduleChronologyOk = false; startDateComponent.setValid(false); endDateComponent.setValid(false); } } if (!eventScheduleChronologyOk) { showErrorMessage(ProductManagementMessage.PRODUCT_SCHEDULE_OUT_OF_ORDER); } } }

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  • Canceling BackgroundWorker within the Thread

    - by Mike Wills
    I have a longer running multi-step process using BackgroundWorker and C#. I need to be sure that each step is completed successfully before moving on to the next step. I have seen many references to letting the BackgroundWorker catch errors and canceling from clicking on a Cancel button, but I want to check for an error myself and then gracefully end the process. Do I treat it just like someone clicked the cancel button, or is there another way?

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  • jquery block UI malfunction on ajax loading event

    - by Ygam
    problem: trigger errored when block UI is called on this code (function($){ function preloader() { $('a#preloader').click(function(e){ e.preventDefault(); var url = base_url + 'runtest/preloader'; $('div#content').load(url, preloaderCallback); }); } function remotePreload() { $('a#remotepreload').click(function(e){ e.preventDefault(); var object = $(this); object.data('clicked', 'yes'); var url = base_url + 'runtest/remote_preloader'; $('div#content').load(url); }); } /* * callback functions */ function preloaderCallback() { $('div.imageholder img').hide(); $('div.imageholder img').each(function(){ var img = new Image(); var sursa = $(this).attr('src'); var parent = $(this).parent(); var preloaderSource = '<img src="' + base_url + 'media/images/preloader.gif' + '" alt="loader"/>'; parent.append(preloaderSource); $(img).load(function(){ parent.append($(this)); $(this).hide().fadeIn(500); $(this).siblings().remove(); }).attr('src', sursa); }); } function blocker() { $('#content').block(); } function handlePageLoad() { $('a#remotepreload').ajaxStart(function(e){ var elem = $(e.target); if (elem.data('clicked') == 'yes') { // error when blocker() function is called here alert('Started'); } }); $('a#remotepreload').ajaxComplete(function(e){ var elem = $(e.target); if (elem.data('clicked') == 'yes') { elem.removeData('clicked'); alert('Ended'); } }); } // call onready functions $(function(){ preloader(); remotePreload();handlePageLoad(); }); })(jQuery); // here's the error from firefox's debugger uncaught exception: [Exception... "Could not convert JavaScript argument arg 0" nsresult: "0x80570009 (NS_ERROR_XPC_BAD_CONVERT_JS)" location: "JS frame :: http://localhost/testsuite/media/js/jquery.min.js :: anonymous :: line 115" data: no] here's the html markup <div id="wrap"> <div id="header"> <?= $header ?> </div> <div id="content"> <?= $content ?> </div> <div id="sidebar"> <?= $sidebar ?> </div> <div id="footer"> <?= $footer ?> </div> </div> EDIT I was using Jquery 1.4.1 when this happened. Switched back to 1.3 and everything went back to normal.

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  • how to rename filename in sdcard with android application?

    - by Addy
    In my Android application, I want to rename the file name at runtime. How can I do it? This is my code: String[] command = {" mv", "sun moon.jpg"," sun_moon,jpg"}; try { Process process = Runtime.getRuntime().exec(command); } catch (IOException e) { Toast.makeText(this, ""+e, Toast.LENGTH_LONG).show(); } I also used renameTo(File f) method but its also not working..

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  • Stumbleupon type query...

    - by Chris Denman
    Wow, makes your head spin! I am about to start a project, and although my mySql is OK, I can't get my head around what required for this: I have a table of web addresses. id,url 1,http://www.url1.com 2,http://www.url2.com 3,http://www.url3.com 4,http://www.url4.com I have a table of users. id,name 1,fred bloggs 2,john bloggs 3,amy bloggs I have a table of categories. id,name 1,science 2,tech 3,adult 4,stackoverflow I have a table of categories the user likes as numerical ref relating to the category unique ref. For example: user,category 1,4 1,6 1,7 1,10 2,3 2,4 3,5 . . . I have a table of scores relating to each website address. When a user visits one of these sites and says they like it, it's stored like so: url_ref,category 4,2 4,3 4,6 4,2 4,3 5,2 5,3 . . . So based on the above data, URL 4 would score (in it's own right) as follows: 2=2 3=2 6=1 What I was hoping to do was pick out a random URL from over 2,000,000 records based on the current users interests. So if the logged in user likes categories 1,2,3 then I would like to ORDER BY a score generated based on their interest. If the logged in user likes categories 2 3 and 6 then the total score would be 5. However, if the current logged in user only like categories 2 and 6, the URL score would be 3. So the order by would be in context of the logged in users interests. Think of stumbleupon. I was thinking of using a set of VIEWS to help with sub queries. I'm guessing that all 2,000,000 records will need to be looked at and based on the id of the url it will look to see what scores it has based on each selected category of the current user. So we need to know the user ID and this gets passed into the query as a constant from the start. Ain't got a clue! Chris Denman

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  • Entity Framework Update Entity along with child entities (add/update as necessary)

    - by Jorin
    I have a many-to-many relationship between Issues and Scopes in my EF Context. In ASP.NET MVC, I bring up an Edit form that allows the user to edit a particular Issue. At the bottom of the form, is a list of checkboxes that allow them to select which scopes apply to this issue. When editing an issue, it likely will always have some Scopes associated with it already--these boxes will be checked already. However, the user has the opportunity to check more scopes or remove some of the currently checked scopes. My code looked something like this to save just the Issue: using (var edmx = new MayflyEntities()) { Issue issue = new Issue { IssueID = id, TSColumn = formIssue.TSColumn }; edmx.Issues.Attach(issue); UpdateModel(issue); if (ModelState.IsValid) { //if (edmx.SaveChanges() != 1) throw new Exception("Unknown error. Please try again."); edmx.SaveChanges(); TempData["message"] = string.Format("Issue #{0} successfully modified.", id); } } So, when I try to add in the logic to save the associated scopes, I tried several things, but ultimately, this is what made the most sense to me: using (var edmx = new MayflyEntities()) { Issue issue = new Issue { IssueID = id, TSColumn = formIssue.TSColumn }; edmx.Issues.Attach(issue); UpdateModel(issue); foreach (int scopeID in formIssue.ScopeIDs) { var thisScope = new Scope { ID = scopeID }; edmx.Scopes.Attach(thisScope); thisScope.ProjectID = formIssue.ProjectID; if (issue.Scopes.Contains(thisScope)) { issue.Scopes.Attach(thisScope); //the scope already exists } else { issue.Scopes.Add(thisScope); // the scope needs to be added } } if (ModelState.IsValid) { //if (edmx.SaveChanges() != 1) throw new Exception("Unknown error. Please try again."); edmx.SaveChanges(); TempData["message"] = string.Format("Issue #{0} successfully modified.", id); } } But, unfortunately, that just throws the following exception: An object with the same key already exists in the ObjectStateManager. The ObjectStateManager cannot track multiple objects with the same key. What am I doing wrong?

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  • PHP sessions and class members.

    - by JDW
    Ok, messing about with classes in PHP and can't get it to work the way I'm used to as a C++/Java-guy. In the "_init" funtion, if I run a query at the "// query works here" line", everythong works, but in the "getUserID" function, all that happens is said warning... "getUserID" gets called from login.php (they are in the same dir): login.php <?php include_once 'sitehandler.php'; include_once 'dbhandler.php'; session_start(); #TODO: Safer input handling $t_userName = $_POST["name"]; $t_userId = $_SESSION['handler']['db']->getUserID($t_userName); if ($t_userId != -1) { $_SESSION['user']['name'] = $t_userName; $_SESSION['user']['id'] = $t_userId; } //error_log("user: " . $_SESSION['user']['name'] . ", id: ". $_SESSION['user']['id']); header("Location: " . $_SERVER["HTTP_REFERER"]); ? dbhandler.php <?php include_once 'handler.php'; class DBHandler extends HandlerAbstract { private $m_handle; function __construct() { parent::__construct(); } public function test() { #TODO: isdir liquibase #TODO: isfile liquibase-195/liquibase + .bat + execrights $this->m_isTested = true; } public function _init() { if (!$this->isTested()) $this->test(); if (!file_exists('files/data.db')) { #TODO: How to to if host is Windows based? exec('./files/liquibase-1.9.5/liquibase --driver=org.sqlite.JDBC --changeLogFile=files/data_db.xml --url=jdbc:sqlite:files/data.db update'); #TODO: quit if not success } #TODO: Set with default data try { $this->m_handle = new SQLite3('files/data.db'); } catch (Exception $e) { die("<hr />" . $e->getMessage() . "<hr />"); } // query works here $this->m_isSetup = true; } public function teardown() { } public function getUserID($name) { // PHP Warning: SQLite3::prepare(): The SQLite3 object has not been correctly initialised in $t_statement = $this->m_handle->prepare("SELECT id FROM users WHERE name = :name"); $t_statement->bindValue(":name", $name, SQLITE3_TEXT); $t_result = $t_statement->execute(); //var_dump($this->m_handle); return ($t_result)? (int)$t_result['id']: -1; } }

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  • About fork system call and global variables

    - by lurks
    I have this program in C++ that forks two new processes: #include <pthread.h> #include <iostream> #include <unistd.h> #include <sys/types.h> #include <sys/wait.h> #include <cstdlib> using namespace std; int shared; void func(){ extern int shared; for (int i=0; i<10;i++) shared++; cout<<"Process "<<getpid()<<", shared " <<shared<<", &shared " <<&shared<<endl; } int main(){ extern int shared; pid_t p1,p2; int status; shared=0; if ((p1=fork())==0) {func();exit(0);}; if ((p2=fork())==0) {func();exit(0);}; for(int i=0;i<10;i++) shared++; waitpid(p1,&status,0); waitpid(p2,&status,0);; cout<<"shared variable is: "<<shared<<endl; cout<<"Process "<<getpid()<<", shared " <<shared<<", &shared " <<&shared<<endl; } The two forked processes make an increment on the shared variables and the parent process does the same. As the variable belongs to the data segment of each process, the final value is 10 because the increment is independent. However, the memory address of the shared variables is the same, you can try compiling and watching the output of the program. How can that be explained ? I cannot understand that, I thought I knew how the fork() works, but this seems very odd.. I need an explanation on why the address is the same, although they are separate variables.

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  • Problem with configuring mod_wsgi WSGIDaemonProcess option

    - by Yury Lifshits
    I am trying to deploy Pinax bundle of Django framework + and selected applications. Here is my apache config: WSGIDaemonProcess ptest python-path=/home/pinax-env/lib/python2.5/site-packages WSGIProcessGroup ptest WSGIScriptAlias / /home/ptest/deploy/pinax.wsgi When I restart apache I get the following error: Invalid option to WSGI daemon process definition Any ideas what is wrong? I am pretty sure my virtual environment at /home/pinax-env/ works. Is any setup required for daemon process outside of apache config?

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