{"action":"opened","issue":{"url":"https://api.github.com/repos/symfony/symfony-docs/issues/6056","labels_url":"https://api.github.com/repos/symfony/symfony-docs/issues/6056/labels{/name}","comments_url":"https://api.github.com/repos/symfony/symfony-docs/issues/6056/comments","events_url":"https://api.github.com/repos/symfony/symfony-docs/issues/6056/events","html_url":"https://github.com/symfony/symfony-docs/issues/6056","id":123252553,"number":6056,"title":"Better documentation for customize a Collection Prototype","user":{"login":"JHGitty","id":5406438,"avatar_url":"https://avatars.githubusercontent.com/u/5406438?v=3","gravatar_id":"","url":"https://api.github.com/users/JHGitty","html_url":"https://github.com/JHGitty","followers_url":"https://api.github.com/users/JHGitty/followers","following_url":"https://api.github.com/users/JHGitty/following{/other_user}","gists_url":"https://api.github.com/users/JHGitty/gists{/gist_id}","starred_url":"https://api.github.com/users/JHGitty/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/JHGitty/subscriptions","organizations_url":"https://api.github.com/users/JHGitty/orgs","repos_url":"https://api.github.com/users/JHGitty/repos","events_url":"https://api.github.com/users/JHGitty/events{/privacy}","received_events_url":"https://api.github.com/users/JHGitty/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-12-21T10:37:26Z","updated_at":"2015-12-21T10:37:26Z","closed_at":null,"body":"http://symfony.com/doc/master/cookbook/form/form_customization.html#how-to-customize-a-collection-prototype\r\n\r\nThere is a form field named ``tasks``. But why is the form in the block named ``task``?\r\n\r\nFor example I have a form field named ``externalIds``. Would the form in the block named ``externalId``? If yes: Why? Magic?"}}