Class: AttrSearchableGrammar::BaseNode

Inherits:

Treetop::Runtime::SyntaxNode

• Object
• Treetop::Runtime::SyntaxNode
• AttrSearchableGrammar::BaseNode

Defined in:

lib/attr_searchable_grammar.rb

Direct Known Subclasses

AndExpression, AnywhereExpression, Column, ComparativeExpression, ComplexExpression, DoubleQuotedValue, NotExpression, OrExpression, ParenthesesExpression, SingleQuotedValue, Value

Instance Attribute Summary

• #model ⇒ Object

Instance Method Summary

• #collection_for(key) ⇒ Object
• #elements ⇒ Object
• #evaluate ⇒ Object

Instance Attribute Details

#model ⇒ Object

# File 'lib/attr_searchable_grammar.rb', line 9

def model
  @model || parent.model
end

Instance Method Details

#collection_for(key) ⇒ Object

Raises:

• (AttrSearchable::UnknownColumn)

# File 'lib/attr_searchable_grammar.rb', line 21

def collection_for(key)
  raise(AttrSearchable::UnknownColumn, "Unknown column #{key}") if model.searchable_attributes[key].nil?

  Attributes::Collection.new model, key
end

#elements ⇒ Object

# File 'lib/attr_searchable_grammar.rb', line 17

def elements
  super.select { |element| element.class != Treetop::Runtime::SyntaxNode }
end

#evaluate ⇒ Object

# File 'lib/attr_searchable_grammar.rb', line 13

def evaluate
  elements.collect(&:evaluate).inject(:and)
end