doctrine2 - Symfony 2 : getReference and find -

-

इकाई प्रबंधक का उपयोग करना getReference () या ढूंढें () विधि डेटाबेस के कुछ अभिलेखों के लिए एक गैर प्रारंभिक ऑब्जेक्ट देता है क्या आपको पता है कि क्यों और क्या किया जाना चाहिए?

getReference () करता है यदि वह अभी तक लोड नहीं हुआ है, तो ऑब्जेक्ट को लोड नहीं करेगा, यह केवल ऑब्जेक्ट पर एक प्रॉक्सी देता है

ढूंढें () एक लोडेड ऑब्जेक्ट देता है

सीएफएफ : 

  // यह कॉल डीबी क्वेरी को ट्रिगर नहीं करता है, लेकिन ID $ objectA = $ this- & gt; इकाई प्रबंधक- & gt; getReference ('EntityName', 1) के साथ खाली प्रॉक्सी बनाता है ; $ This- & gt; assertInstanceOf ('सिद्धांत \ ORM \ प्रॉक्सी प्रॉक्सी', $ objectA); / / === सच // यह एक क्वेरी को ट्रिगर करेगा, जो कि स्थिति को लोड करने के लिए कॉन्फ़िगर किया गया है / लोड हो रहा है / क्योंकि यूनिटऑफ़वर्क पहले से प्रॉक्सी है, प्रॉक्सी को $ objectB = $ this- & gt; इकाई प्रबंधक- & gt; खोजें ('EntityName', 1); $ this- & gt; असाइन करें ($ objectA, $ objectB); विशेष उपयोग के मामलों के लिए मौजूद है, यदि आप उन्हें इस्तेमाल करने के लिए ऑब्जेक्ट ला रहे हैं, तो हमेशा  का उपयोग करें () का उपयोग करें (/>)   
  getReference ()  ।

Comments

Post a Comment

Popular posts from this blog

php - PDO bindParam() fatal error -

-
I am trying to learn PDO, now I have written this small code, but it gives me a serious error: < P> Fatal error: Call a member function at a non-object dot () ... $ con = new mysqli ("127.0.0.1", "root", "", "csvdangercheck"); $ Query = $ con- & gt; ("Id,` var1`, `var2`) values ​​(" id,: var1,: var2) ";); $ query- & gt; bypass pattern (': id', $ id); $ query- & gt; BindParam (': var1', $ VAL1); $ Query- & gt; bindParam (': var2', $ val2); $ Query-> Executed (); I Trying to use print_r ($ con-> errorInfo ()) but Fatal error: Undefined method mysqli :: errorInfo ( ) ... can someone tell me what am I missing? Flaffeh said, you have PDO Missing Mysqy, try it: $ con = new PDO ('mysql: host = 127.0.0.1; dbname = csvdangercheck', 'root', '');
Read more

logging - How can I log both the Request.InputStream and Response.OutputStream traffic in my ASP.NET MVC3 Application for specific Actions? -

-
For a specific set of tasks, I need to log in to the incoming request inputstream as well as outgoing response. is. I am using an ActionFilterAttribute for this and overriding the OnActionExecuted and OnResultExecuted methods. So I'm starting with this idea ... Public category ActionLoggerAttribute: ActionFilterArrbit {Public Override Zero On-Offed Execution (ActionActioned Contact Filter Filter) {base.OnActionAxecuted (FilterContext); HttpRequestBase request = filterContext.HttpContext.Request; // TODO: Log the request. InputStream} Public Override Zero OnResultExecuted (ResultExecutedContext FilterContext) {base.OnResultExecuted (filterContext); HTTPRPSPointBase Response = FilterContacts Hpptex response; // TODO: Log on Response.OutputStream}} Ideally I'll hook it up with enterprise library logging because I'm already using it for error logging. Am I reaching the input and output stream at the right time? Can I easily use the Enterprise Library to log i
Read more

java - Why my included JSP file won't get processed correctly? -

-
I am trying to create Java web framework (and learning), and on the basis of 'Code Generator In the process of making the material view of the database in the process of development, I stumbled into a difficulty, which I do not know how to solve it. First of all, I want the following index.jsp : & lt; Body & gt; Use all pages to be created. & Lt;% @ include file = "header.jsp"% & gt; & Lt; Hours / & gt; & Lt;% @ included file = "body.jsp"%> & Lt; Hours / & gt; & Lt;% @ include file = "footer.jsp"% & gt; & Lt; / Body & gt; And, in body.jsp , I should have it like this: & lt; Jsp: include page = "$ {Application_modul}"%> Where application_modul is an attribute defined in its controller: request.setAttribute ("application_modul", "USER_ACCOUNT \\ ' View_user_account.jsp "); This file can be found properly, but the processed JSP does
Read more