Class: RailsClafer::ClaferElement

Inherits:
Object
  • Object
show all
Defined in:
lib/rails_clafer/clafer_element.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, ruby_class, is_abstract) ⇒ ClaferElement

Returns a new instance of ClaferElement.



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# File 'lib/rails_clafer/clafer_element.rb', line 62

def initialize(name, ruby_class, is_abstract)
  @is_abstract = is_abstract
  @name = ClaferModel.claferize_name name
  @klass = ruby_class
  @gcard = GCard.new
  @card = Card.new
  @constraint = ""
end

Instance Attribute Details

#card ⇒ Object

Returns the value of attribute card.



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# File 'lib/rails_clafer/clafer_element.rb', line 61

def card
  @card
end

#constraint ⇒ Object

Returns the value of attribute constraint.



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# File 'lib/rails_clafer/clafer_element.rb', line 61

def constraint
  @constraint
end

#gcard ⇒ Object

Returns the value of attribute gcard.



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# File 'lib/rails_clafer/clafer_element.rb', line 61

def gcard
  @gcard
end

#is_abstract ⇒ Object Also known as: is_abstract?

Returns the value of attribute is_abstract.



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# File 'lib/rails_clafer/clafer_element.rb', line 59

def is_abstract
  @is_abstract
end

#name ⇒ Object

Returns the value of attribute name.



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# File 'lib/rails_clafer/clafer_element.rb', line 61

def name
  @name
end

Class Method Details

.calc_abstract_clafer_list ⇒ Object 



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# File 'lib/rails_clafer/clafer_element.rb', line 30

def calc_abstract_clafer_list()
  abs_model_map = Hash[ClaferModel.rails_models.collect {|klass| [ClaferModel.claferize_name(klass.name), false] }]
  #first pass to check if ruby model belongs to more than one model
  abs_model_map.each do |class_name, is_abstract|
    if model_belong_to_mult_models? class_name
      abs_model_map[class_name] = true
    end
  end
  # second pass to look for circular associations
  abs_model_map.each do |class_name, is_abstract|
    if !is_abstract 
      dfs(ClaferModel.assoc_src, class_name, {class_name => true}, class_name, abs_model_map )
    end
  end
  abs_model_map
end

.dfs(assoc_map, class_name, path, target, abs_model_map) ⇒ Object 



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# File 'lib/rails_clafer/clafer_element.rb', line 16

def dfs (assoc_map, class_name, path, target, abs_model_map)
  if assoc_map.has_key? class_name
    assoc_map[class_name].each do |assoc|
      if assoc.dst == target
        abs_model_map.merge! path
      else      
        if !path.has_key? assoc.dst
          dfs(assoc_map, assoc.dst, path.merge({assoc.dst => true}), target, abs_model_map)
        end
      end
    end
  end
end

.from_rails_models(rails_models) ⇒ Object 



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# File 'lib/rails_clafer/clafer_element.rb', line 47

def from_rails_models(rails_models)
  # create clafer for each metaclafer and assoc dst if not already exists
  class_mapping = Hash[rails_models.collect {|model_class| [ ClaferModel.claferize_name(model_class.name), model_class] }]
  abs_model_map = calc_abstract_clafer_list

  class_mapping.collect do |name, klass|
    new name, klass, abs_model_map[name]
  end
end

.model_belong_to_mult_models?(class_name) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rails_clafer/clafer_element.rb', line 4

def model_belong_to_mult_models?(class_name)
  if ClaferModel.assoc_dst.has_key? class_name 
    if ClaferModel.assoc_dst[class_name].size>1
      true
    else 
      false
    end
  else 
    true
  end
end

Instance Method Details

#children ⇒ Object 



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# File 'lib/rails_clafer/clafer_element.rb', line 71

def children
  @children ||= children_list
end