symfony - List entities belonging to an association in Doctrine -

-

let's have "person" entity. person can belong "group". associated through manytomany, join table strategy.

the general code looks this:

/**  * vendor\acmebundle\entity\person  *  * @orm\entity(repositoryclass="vendor\acmebundle\entity\personrepository")  */ class person extends baseuser {  /**  * @orm\column(type="integer")  * @orm\id  * @orm\generatedvalue(strategy="auto")  */ protected $id; /**  * @orm\manytomany(targetentity="vendor\acmebundle\entity\group")  */ protected $groups;  }

and group entity

/**  * @orm\entity  */ class group extends basegroup {     /**      * @orm\id      * @orm\column(type="integer")      * @orm\generatedvalue(strategy="auto")      */     protected $id;     /**      * @orm\column(type="string", nullable=true)      */     protected $publicname;     }

what want achieve?

given group, list users belonging group in consistent way, including pagination options (aka limit , offset)

something this:

function getuserfromgroup(group $group, $criteria, $limit, $offset){};

considerations:

  • the entities mutable, can adapted achieve requisite (e.g. association changed unidirectional bidirectional)
  • the amount of person entities in thousands (2000~8000)
  • the amount of groups less 10

this explained in symfony2 book, chapter on doctrine

for case, suggest using findby() method.

from official doctrine documentation:

function getuserfromgroup($group, $criteria, $limit, $offset){     // should build criteria paramaters array,     // i'll asume it's "fieldname" => "valuetofilterby"     $criteria['groups'] = $group;      $users = $em->getrepository('appbundle\entity\user')         ->findby(             $criteria, // filter columns             array('name' => 'asc'), // sorting             $limit, // how many entries select             $offset   // offset         );      return $users; };

Comments

Post a Comment

Popular posts from this blog

java - Run spring boot application error: Cannot instantiate interface org.springframework.context.ApplicationListener -

-
i have spring project , try make use spring boot , run @ embadded tomcat following : https://spring.io/guides/gs/rest-service/ this application //@configuration //@enableaspectjautoproxy @springbootapplication @componentscan(basepackages = "gux.prome") public class application { public static void main(string[] args) { springapplication.run(application.class, args); } } if use maven command: mvn spring-boot:run , project starts fine, need debug , run main method @ intelij, exception occurs: exception in thread "main" java.lang.illegalargumentexception: cannot instantiate interface org.springframework.context.applicationlistener : org.springframework.boot.logging.classpathloggingapplicationlistener @ org.springframework.boot.springapplication.createspringfactoriesinstances(springapplication.java:414) @ org.springframework.boot.springapplication.getspringfactoriesinstances(springapplication.java:394) @ org.springframework.bo...
Read more

reactjs - React router and this.props.children - how to pass state to this.props.children -

-
i'm using react-router first time , don't know how think in yet. here's how i'm loading components in nested routes. entry point .js reactdom.render( <router history={hashhistory} > <route path="/" component={app}> <route path="models" component={content}> </route> </router>, document.getelementbyid('app') ); app.js render: function() { return ( <div> <header /> {this.props.children} </div> ); } so child of app content component sent in. i'm using flux , app.js has state , listens changes, don't know how pass state down this.props.children. before using react-router app.js defines children explicitly, passing state natural don't see how now. using couple of react helper methods can add state, props , whatever else this.props.children render: function() { var children = react.ch...
Read more

Excel VBA "Microsoft Windows Common Controls 6.0 (SP6)" Location Changes -

-
i have excel workbook used generate quotations customers. there main page user inputs data, , there buttons generate various pdfs , send them customer. however, 1 user consistently getting error preventing generating , sending pdfs. i beleive "microsoft windows common controls 6.0 (sp6)". it's installed on users' computers. on mine, location "c:\windows\syswow64\mscomctl.ocx" on others "c:\windows\system32\mscomctl.ocx" the user experiencing issues on 32-bit machine, "mscomctl.ocx" file should in system32. have manually put in there, , pointed common controls reference in vba it. issue seems keep reverting looking in syswow64. since folder doesn't exist, can't find it, , can't produce pdfs. i thought perhaps issue user running older version of office (2007) there users on 2013 , 2016. thought perhaps mixture of 64-bit , 32-bit users. user gets sent workbook other users (as quotation process goes further, gets passed ...
Read more