Class: FlattenRecord::Meta::NormalizedAttr

Inherits:
Node
  • Object
show all
Defined in:
lib/flatten_record/meta/normalized_attr.rb

Direct Known Subclasses

AssociatedAttr, RootNode

Instance Attribute Summary

Attributes inherited from Node

#model, #parent, #target_model

Instance Method Summary collapse

Methods inherited from Node

#initialize

Constructor Details

This class inherits a constructor from FlattenRecord::Meta::Node

Instance Method Details

#[](key) ⇒ Object 



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# File 'lib/flatten_record/meta/normalized_attr.rb', line 22

def [](key)
  instance_variable_get("@#{key}") 
end

#all_columns ⇒ Object 



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# File 'lib/flatten_record/meta/normalized_attr.rb', line 9

def all_columns
  return @columns if @columns
  child_columns = @include.values.collect do |n|
    n[:columns] + n[:methods] + n[:compute]
  end
  child_columns.flatten!
  @columns = @base_columns + @methods + @compute + child_columns 
end

#associated_models ⇒ Object 



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# File 'lib/flatten_record/meta/normalized_attr.rb', line 18

def associated_models
  @include.blank? ? target_model : @include.values.collect(&:associated_models).flatten
end

#denormalize(instance, to_record) ⇒ Object 



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# File 'lib/flatten_record/meta/normalized_attr.rb', line 5

def denormalize(instance, to_record)
  denormalize_children(instance, to_record)
end

#id_column ⇒ Object 



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# File 'lib/flatten_record/meta/normalized_attr.rb', line 48

def id_column
  return @id_column unless @id_column.nil?
end

#prefix ⇒ Object 



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# File 'lib/flatten_record/meta/normalized_attr.rb', line 26

def prefix
  @custom_prefix || parent.prefix+target_model.name.underscore.to_s + "_"
end

#traverse_by(attr, value) ⇒ Object 



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# File 'lib/flatten_record/meta/normalized_attr.rb', line 30

def traverse_by(attr, value)
  attr_value = instance_variable_get("@#{attr}")

  if !value.respond_to?(:to_s) || !attr_value.respond_to?(:to_s)
    raise "traverse error: to_s method required for comparison"
  end
  
  if value.to_s == attr_value.to_s
    return self
  else
    found = nil
    @include.values.each do |node|
      found = node.traverse_by(attr, value)
    end 
    return found
  end
end