ruby on rails - How to get the scoped attributes when creating a new object through a has_many association -

-

एक has_many एसोसिएशन जैसे user.first.books.create के माध्यम से ऑब्जेक्ट बनाते समय! (...) , नई किताब को user_id को संघ से स्वचालित रूप से मिलता है।

क्या उस user_id प्राप्त करने का कोई तरीका है? अगर मैं अपनी खुद की विधि बनाने कॉल? I.e. उपयोगकर्ता.first.books.own_create_method 

  def self.own_create_method # उपयोगकर्ता ऑब्जेक्ट कैसे प्राप्त करें?   
 धन्यवाद!   
 
 
  उपयोगकर्ता को परिभाषित करने के लिए प्रथम। पुस्तकें। उपयोग करें / उपयोग करें  आप उपयोग करेंगे: 
 
  def self.own_create_method book = build # कुछ पुस्तक जिसे आप बुक बुक के साथ करना चाहते हैं। सविता एंड  
 
  स्व।  आपको रूबी में वर्ग विधियों को परिभाषित करने की अनुमति देता है।

Comments

Post a Comment

Popular posts from this blog

c# - SignalR: "Protocol error: Unknown transport." when navigating to hub -

-
Image
I am trying to use the ASP.NET signal for the first time - here's what I did: created a new web Has been added to the project and the following signal R packages: I have created the following category: [Hub-name ("chat")] Public class ChatHub: Hub {Public Zero Halo () {Clients.All.hello ( ); }} and the following startup configuration: public partial class startup {public zero configuration (IAppBuilder app) {configure (app); App.MapSignalR (); }} However, whenever I navigate localhost: (port) / api / signalr / chat I get the following error: Protocol error: Unknown transport. I am running a new browser and trying different people so remove it from the API / URL, and just use the localhost: (potter) / signaller / Chat
Read more

class - Kivy: how to instantiate a dynamic classes in python -

-
Using KV lang on my Python code, I have taken a hard time trying to instantiate a dynamic class, the following Consider the code: My test.kv file looks like this: & lt; MyPopup @ popup: Title: 'Hello' size_hunt: (1, .6) Grid layout: ID: RouteGrid column: 2 padding: ['8dp', '4dp', '8dp', '4dp'] Difference: '8dp' label: text: 'some text here' button: text: 'OK' On_press: do_something () & lt; MyGrid & gt;: Rows: 1 Button: Text: 'Show Popup' on_press: root.pop.show () Then import Kivy.app into my test.py: I get the following error: raise Factory Exception ('Uncount Class' '% name) kivy.factory.FactoryException: Unknown class Can anyone tell me how to do this properly, what do I remember? If you need more information please let me know Thank you. Takes a call to the factory before the KV file is loaded, so you want the class to Are not yet in existence. As long as no clas...
Read more

java - Algorithm negotiation fail SSH in Jenkins -

-
I am trying to do SSH on the local server from Jenkins, but the following error has been thrown: [SSH] Exception: Algorithm negotiation fail com.jcraft.jsch.JSchException: algorithm talk com.jcraft.jsch.Session.receive_kexinit (Session.javaatar20) at com.jcraft.jsch.Session.connect (Sesson at com.jcraft.jsch.Session.connect (Session.java:150) at org.jvnet.hudson.plugins.SSHSite.createSession (SSHSite.java:141) on failed failed org.jvnet.hudson.plugins. java: 286) .SSHS on org.jvnet.hudson.plugins.SSHBuildWrapper.executePreBuildScript (SSHBuildWrapper.java:75) on Org.jvnet.hudson.plugins.SSHBuildWrapper.setUp (SSHBuildWrapper.java59) ite.executeCommand (SSHSite.java151) on hudson.model.Build $ BuildExecution.doRun hudson.model.AbstractBuild $ AbstractBuildExecution.run (AbstractBuild.java:533) to (Build.java:154) hudson.model.Run.execute ( Run.java:1754) in ended .model.FreeStyleBuild.run (FreeStyl hudson.model.ResourceController.execute (ResourceController.java:89) on hudson.mod...
Read more