Class: Hotdog::Expression::StringTagnameNode

Inherits:
StringExpressionNode show all
Defined in:
lib/hotdog/expression/semantics.rb

Instance Attribute Summary

Attributes inherited from TagExpressionNode

#separator, #tagname, #tagvalue

Instance Method Summary collapse

Methods inherited from TagExpressionNode

#==, #dump, #evaluate, #maybe_glob, #maybe_query, #maybe_query_without_condition, #optimize, #reload, #separator?, #tagname?, #tagvalue?, #to_glob

Methods inherited from ExpressionNode

#==, #dump, #evaluate, #optimize

Constructor Details

#initialize(tagname, separator = nil) ⇒ StringTagnameNode

Returns a new instance of StringTagnameNode.



810
811
812
 
# File 'lib/hotdog/expression/semantics.rb', line 810

def initialize(tagname, separator=nil)
  super(tagname.to_s, nil, separator)
end

Instance Method Details

#condition(options = {}) ⇒ Object 



814
815
816
 
# File 'lib/hotdog/expression/semantics.rb', line 814

def condition(options={})
  "tags.name = ?"
end

#condition_tables(options = {}) ⇒ Object 



818
819
820
 
# File 'lib/hotdog/expression/semantics.rb', line 818

def condition_tables(options={})
  [:tags]
end

#condition_values(options = {}) ⇒ Object 



822
823
824
 
# File 'lib/hotdog/expression/semantics.rb', line 822

def condition_values(options={})
  [tagname]
end

#maybe_fallback(options = {}) ⇒ Object 



826
827
828
829
830
831
832
833
834
 
# File 'lib/hotdog/expression/semantics.rb', line 826

def maybe_fallback(options={})
  fallback = GlobTagnameNode.new(to_glob(tagname), separator)
  query = fallback.maybe_query(options)
  if query
    QueryExpressionNode.new(query, fallback.condition_values(options))
  else
    nil
  end
end