Class: MDWA::Generators::ModelAssociation

Inherits:
Object
  • Object
show all
Defined in:
lib/mdwa/generators/model_association.rb

Constant Summary collapse

ACCEPTED_RELATIONS = 
[:has_many, :belongs_to, :has_and_belongs_to_many, :nested_many, :nested_one, :has_one]

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(model1_name, model2_name, relation_name, reference_field = nil) ⇒ ModelAssociation

Returns a new instance of ModelAssociation.



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# File 'lib/mdwa/generators/model_association.rb', line 13

def initialize(model1_name, model2_name, relation_name, reference_field = nil)
  
  self.model1   = model1_name
  self.model2   = model2_name
  self.relation = relation_name
  self.reference_field = reference_field || 'id'
  self.composition = false
  self.skip_views = false

  # validation
  raise "Invalid model name: #{@model1.name}" unless self.model1.valid?
  raise "Invalid model name: #{@model2.name}" unless self.model2.valid?
  raise "Invalid relation type: #{@relation}" unless self.relation_valid?
end

Instance Attribute Details

#composition ⇒ Object

Returns the value of attribute composition.



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# File 'lib/mdwa/generators/model_association.rb', line 9

def composition
  @composition
end

#model1 ⇒ Object

Returns the value of attribute model1.



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# File 'lib/mdwa/generators/model_association.rb', line 9

def model1
  @model1
end

#model2 ⇒ Object

Returns the value of attribute model2.



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# File 'lib/mdwa/generators/model_association.rb', line 9

def model2
  @model2
end

#reference_field ⇒ Object

Returns the value of attribute reference_field.



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# File 'lib/mdwa/generators/model_association.rb', line 9

def reference_field
  @reference_field
end

#relation ⇒ Object

Returns the value of attribute relation.



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# File 'lib/mdwa/generators/model_association.rb', line 9

def relation
  @relation
end

#skip_views ⇒ Object

Returns the value of attribute skip_views.



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# File 'lib/mdwa/generators/model_association.rb', line 9

def skip_views
  @skip_views
end

Instance Method Details

#belongs_to? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mdwa/generators/model_association.rb', line 60

def belongs_to?
	return (relation == 'belongs_to')
end

#composition? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mdwa/generators/model_association.rb', line 44

def composition?
  self.composition
end

#filter_input(destination_field) ⇒ Object 



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# File 'lib/mdwa/generators/model_association.rb', line 89

def filter_input(destination_field)
  input = []
  input << "render '/template/mdwa/autocomplete_tag', :dom_element => '##{self.model2.name.underscore}', :dom_element_id => '##{self.model2.name.underscore}_id', :data => #{model2.klass}.all, :field_name => '#{destination_field}'"
  input << "text_field_tag :#{self.model2.name.underscore}"
  input << "hidden_field_tag :#{self.model2.name.underscore}_id"
  return input
end

#has_and_belongs_to_many? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mdwa/generators/model_association.rb', line 84

def has_and_belongs_to_many?
	return (relation == 'has_and_belongs_to_many')
end

#has_many? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mdwa/generators/model_association.rb', line 64

def has_many?
	return (relation == 'has_many')
end

#has_one? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mdwa/generators/model_association.rb', line 80

def has_one?
	return (relation == 'has_one')
end

#nested? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mdwa/generators/model_association.rb', line 72

def nested?
	nested_many? || nested_one?
end

#nested_many? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mdwa/generators/model_association.rb', line 68

def nested_many?
	return (relation == 'nested_many')
end

#nested_one? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mdwa/generators/model_association.rb', line 76

def nested_one?
	return (relation == 'nested_one')
end

#ordered ⇒ Object 



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# File 'lib/mdwa/generators/model_association.rb', line 56

def ordered
  [@model1, @model2].sort! {|a,b| a.plural_name <=> b.plural_name}
end

#relation_valid? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mdwa/generators/model_association.rb', line 52

def relation_valid?
  ACCEPTED_RELATIONS.include? relation.to_sym
end

#skip_views? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mdwa/generators/model_association.rb', line 48

def skip_views?
  self.skip_views
end