Class: ActiveGraph::Core::QueryClauses::LimitClause

Inherits:
Clause
  • Object
show all
Defined in:
lib/active_graph/core/query_clauses.rb

Constant Summary collapse

KEYWORD = 
'LIMIT'

Constants inherited from Clause

Clause::AND, Clause::COMMA_SPACE, Clause::PRETTY_NEW_LINE, Clause::UNDERSCORE

Instance Attribute Summary

Attributes inherited from Clause

#arg, #options, #param_vars_added, #params

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Clause

#_nested_value_hash?, #_use_key_for_var?, #add_param, #add_params, #attributes_from_key_and_value, clause_color, clause_join, clause_string, from_arg, from_args, #from_hash, from_key_and_single_value, #initialize, keyword, keyword_downcase, #label_from_key_and_value, #node_from_key_and_value, paramaterize_key!, to_cypher, #value, #var_from_key_and_value

Constructor Details

This class inherits a constructor from ActiveGraph::Core::QueryClauses::Clause

Class Method Details

.clause_strings(clauses) ⇒ Object 



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# File 'lib/active_graph/core/query_clauses.rb', line 551

def clause_strings(clauses)
  result_clause = clauses.last

  clauses[0..-2].map(&:param_vars_added).flatten.grep(/^limit_\d+$/).each do |var|
    result_clause.params.remove_param(var)
  end

  [result_clause.value]
end

Instance Method Details

#from_integer(value) ⇒ Object 



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# File 'lib/active_graph/core/query_clauses.rb', line 542

def from_integer(value)
  from_string(value)
end

#from_nilclass(_value) ⇒ Object 



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# File 'lib/active_graph/core/query_clauses.rb', line 546

def from_nilclass(_value)
  ''
end

#from_string(value) ⇒ Object 



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# File 'lib/active_graph/core/query_clauses.rb', line 536

def from_string(value)
  param_var = "#{self.class.keyword_downcase}_#{value}"
  param_var = add_param(param_var, value.to_i)
  "$#{param_var}"
end