i have 2 models,
class user < activerecord::base has_many :posts, -> { order('post.id') } end class post < activerecord::base belongs_to: user end for instance i'm having @user , 2 posts associated. while doing @user.posts, result like.
[ [0] #<post:0x0000000aa53a20> { :id => 3, :title => 'hello world', :comment => 'long text comes here' }, [1] #<post:0x0000000aa53a41> { :id => 5, :title => 'hello world 2', :comment => 'long text comes here too' } ] now, i'm building 1 more object doing @user.posts.build , below result of doing @user.posts
[ [0] #<post:0x0000000aa53a20> { :id => 3, :title => 'hello world', :comment => 'long text comes here' }, [1] #<post:0x0000000aa53a41> { :id => 5, :title => 'hello world 2', :comment => 'long text comes here too' }, [2] #<post:0x0000000aa53a50> { :id => nil, :title => nil, :comment => nil }, ] what want is, sort object nil first. result should like,
[ [0] #<post:0x0000000aa53a50> { :id => nil, :title => nil, :comment => nil }, [1] #<post:0x0000000aa53a20> { :id => 3, :title => 'hello world', :comment => 'long text comes here' }, [2] #<post:0x0000000aa53a41> { :id => 5, :title => 'hello world 2', :comment => 'long text comes here too' } ] it can done custom method sort looping through each object. don't want write method. result should in association proxy , not array
is possible achieve in association proxy itself?
suppose, have @posts variable contains nil item.
@posts.sort{|i,j| i.id && j.id ? <=> j : j.id ? -1 : 1 } result => [nil, 3, 5] 
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