symfony - How can I fetch a value from the DB and display it in all templates? -


Assume that I have a user and a message my Symfony2 The unit is an app with a one to the relationship between the two organizations, so that the user can have more than one message, and I display the number of unread messages in this kind of main navigation

  • Message (6)
  • My Profile
  • p> Where (6) unread messages To get this amount of number per user controller independently, I can think of defining the user unit method: 
      public function getUnreadMessagesCount () {$ unreadMessagesCount = 0; Foreign exchange ($ this-> message as $ message) {if ($ message-> Unread ()) {$ unreadMessagesCount ++; }}}   
     and call it in my  menu.html.twig   
      {% set umc = app.user }. GetUnreadMessagesCount ()%} {% if umc & gt; 0%} ({{umc}}} {% endif%}   
     But for performance reasons, I would like to completely avoid looping through message messages just to check it For whether it is unread or not, I prefer to get it through DQL call (and keep this fame in  UserRepository  class)  
      $ Query = $ em- & gt; createQuery (select "select"). D. WHERE M.Rread = Truth and U.ID =: UID ");   
     But the apaic use of the Repository methods or the use of the Entity Manager (or theory) in the unit sections Practicing is to do.  
     I thought about bringing value to the service and inject it into my institution. But this is not recommended to inject the services in signals.  < P> then get this value and come in all the templates What is a legal way to extract (It can be done without any unit methods, for example, controlling the value in all)   
     
     
     I used another solution to get data from a repository.  
     First, define the service:  
      ## bundle / resource / config / services.yml in services: YOUR_BUNDLE .twig.NAME_OF_THE_EXTENSION: Category: Your \ Bundle \ Toggle \ CLASSNAME Argument: - @service_container Tags: - {name: twig.extension}   
     Then define the Tivig extension class:  
      # yOUR_BUNDLE / tweed / CLASSNAME.php

    • Comments

    Post a Comment

    Popular posts from this blog

    Verilog Error: output or inout port "Q" must be connected to a structural net expression -

    I get the error every time, I try to compile. I'm not sure why anyone can help is? I'm new to verilog. Module D_FF (clerk, d, reset_n, q); Input D, Clack, reset_en; Output Q; reg Q; lab4_gdl f1 (.lk (~ clk), d (d), .q.m (qm)); lab4_GDL f2 (.Clk (Clk), D (QM), .Q (Q)); Always start at @ (posedge clk, neggeous reset_n) (Reset_n == 0) Q & lt; = 0; Other questions & lt; = D; Edit End: The problem is what we are asking to do: In this section, you apply the memory / registration circuit on the AlterEdie 2 board. will do. The circuit has the following specifications: The present value of swift SW15-0 on the D2 board should be shown in four hexadecimal four sections of HEX3-0. This part of the circuit will be combination logic. To use an active-less asynchronous reset and KEY1 to use KEY0 as the clock input, you must store SW15-0in in a 16-bit register in the value The register should be enabled to have a 16-bit positive edge, which uses the embedded D flip-flo
    Read more

    jasper reports - How to center align barcode using jasperreports and barcode4j -

    I use iReport 5.5.0 . How to align a barcode component to the center The relevant piece of my jrxml is below & Lt; JR: Code 128 xmlns: JR = "http://jasperreports.sourceforge.net/jasperreports/components" xsi: schemaLocation = "http://jasperreports.sourceforge.net/jasperreports/components http: //jasperreports.sourceforge Purge / xsd / components.xsd "textPosition =" bottom "& gt; & Lt; Jr: codeExpression & gt; & Lt; [CDATA [$ F {number}]] & gt; & Lt; / Jr: codeExpression & gt; & Lt; / Jr: Code 128 & gt; & Lt; / componentElement & gt; "Text" itemprop = "text"> Create a style after this, it is called "barcode", like: & lt; Style name = "barcode" fontName = "Helvetica" fONTSIZE = "10" hAlign = "center" valign = "center" /> and set the property of your barcode element to "barcode".
    Read more

    c# - ASP.NET MVC - Attaching an entity of type 'MODELNAME' failed because another entity of the same type already has the same primary key value -

    In brief, the wrapper module is inserted during posting and the status of an entry is changed to 'modified' . Before changing the state, the state is set to 'separate', but calling attachments () causes the same error to be thrown away. I am using EF 6. Model / wrapper class public class avi model {public A is a {get; Set; } Public listing & lt; B & gt; B {received; Set; } Public cc {receipt; Set; }} Administrator edit public functioning (int? id) {if (id == null) {new HttpStatusCodeResult (HttpStatusCode.BadRequest); } If (! Conveyor Access (id.Value)) new HTTPTitus code result (HTTP status code. Forbidden); Var aViewModel = new AViewModel (); aViewModel.A = db.As.Find (id); If (aViewModel.Receipt == zero) {return HttpNotFound (); } aViewModel.b = db.Bs.Where (x => x.aid == id.Value) .Oolist (); AViewModel.Vendor = db.Cs.Where (x => x.cid == aViewModel.a.cID) .FirstOrDefault (); See Return (aViewModel); } [HTPFost] [Valid AntitiferousTeacon
    Read more