Module: Resourcify::ParentRelationship

Defined in:
lib/resourcify/parent_relationship.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(base) ⇒ Object

e.g. class Person

belongs_to :location

end

class Location

has n, :people

end

access_by :location

(Options) :collection => :person


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# File 'lib/resourcify/parent_relationship.rb', line 19

def self.included(base)
  base.class_eval do
   class_inheritable_accessor :relationship_collections
   self.relationship_collections = {}
    
    def self.access_by(relationship, options = {})
      options[:collection]   ||= Extlib::Inflection.tableize(model_name_parts.last).to_sym

      relationship_collections[relationship] = options[:collection]
    end
    
  end
 
end

Instance Method Details

#collection(query = {}) ⇒ Object 


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# File 'lib/resourcify/parent_relationship.rb', line 42

def collection(query = {})
  if parent_relationship?
    if association_name = relationship_collections[parent_relationship.name]
      parent.send(association_name, query)
    else
      raise(ArgumentError.new(
        "Parent relationship #{parent_relationship.name} found, but not marked as accessible.
         Specify `access_by :#{parent_relationship.name}` for this controller."
      ))
    end
  end
end

#owner ⇒ Object 


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# File 'lib/resourcify/parent_relationship.rb', line 34

def owner
  collection || model
end

#parent ⇒ Object 


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# File 'lib/resourcify/parent_relationship.rb', line 38

def parent
  @parent ||= parent_relationship.parent_model.get!(params[parent_key]) if parent_relationship?
end

#parent_key ⇒ Object 


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# File 'lib/resourcify/parent_relationship.rb', line 67

def parent_key
  @parent_key ||= model.parent_keys.detect { |parent_key| params[parent_key] }
end

#parent_relationship ⇒ Object 


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# File 'lib/resourcify/parent_relationship.rb', line 63

def parent_relationship
  @parent_relationship ||= model.parent_relationships[parent_key]
end

#parent_relationship? ⇒ Boolean

Returns:

  • (Boolean) 

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# File 'lib/resourcify/parent_relationship.rb', line 59

def parent_relationship?
  !parent_relationship.nil?
end

#relationship_collections ⇒ Object 


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# File 'lib/resourcify/parent_relationship.rb', line 55

def relationship_collections
  self.class.relationship_collections
end