one to many attributes nested attributes

Question

I have a form that creates a league and 10 teams for that league. I am having trouble setting up the back end to do this.

Right now I have this hitting my backend:

 Parameters: {"league"=>{"name"=>"League Name", "teams"=>[{"name"=>"Team 1"}, {"name"=>"Team 2"}, {"name"=>"Team 3",...]}}

Robin Alex Panicker · Accepted Answer · 2017-10-04 02:16:28Z

2

See if this works.

class League < ActiveRecord::Base
    has_many :teams
    accepts_nested_attributes_for :teams
end

And in LeagueController:league_params, whitelist the nested attributes. Note that its teams_attributes that is whitelisted and not teams

def league_params 
     params.require(:league).permit( :id, :name, teams_attributes: [ :id, :name ] )
end

Make sure the following param structure hits the code. Note the change from teams to teams_attributes

{"league" =>{"name"=>"League Name", "teams_attributes"=>[{"name"=>"Team 1"}, {"name"=>"Team 2"}, {"name"=>"Team 3"}]}}

The code is not tested so may need tweaking.

answered Oct 4, 2017 at 2:16

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