php - Symfony2 and Doctrine - OneToMany returns only one result -


I have towel organizations, submissions and submission history

Any ideas why?

There are institutions in the IP> 

  // entry submissions / ** * @ORM \ OneToMany (targetEntity = "SubmissionHistory", mapped = "submissions") * / $ $ protected ; Public function __ composition () {$ this- & gt; History = new ArrayCollection (); } / ** * Get History * * @Riton's Principle / Common Collections * / Public Function getHistories () {Return $ this- & gt; History; }   
 After that,  
  // unit submission / ** * @ORM \ ManyToOne (targetEntity = "submission", inverted = "history" ) * @ORM \ JoinColumn (name = "hash_key", referenced columnname = "hash_key") * / protected $ submission; / ** * Receive Submissions * * * Return Cyfrom \ Version 2 Bundle \ Unit \ Submissions * / Public Function getSubmission () {Return $ -> Submit; }   
 
 
 I got the problem:  
 I set up the setup ID There must be a hash in the  submissions history , which is incorrect, by doing so, all the results have been collapsed as if I am grouping them with "field.id".  
 By changing the ID field to ID, things work perfectly well.

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