Class: Neo4j::Core::QueryClauses::WhereClause

Inherits:
Clause
  • Object
show all
Defined in:
lib/neo4j-core/query_clauses.rb

Constant Summary

Constants included from CypherTranslator

CypherTranslator::SANITIZE_ESCAPED_REGEXP

Instance Attribute Summary

Attributes inherited from Clause

#params

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Clause

from_args, #from_string, #initialize, #node_from_key_and_value, to_cypher, #value

Methods included from CypherTranslator

#cypher_prop_list, #escape_quotes, #escape_value, #sanitize_escape_sequences, sanitized_column_names, translate_response

Constructor Details

This class inherits a constructor from Neo4j::Core::QueryClauses::Clause

Class Method Details

.clause_string(clauses) ⇒ Object 



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# File 'lib/neo4j-core/query_clauses.rb', line 194

def clause_string(clauses)
  clauses.map(&:value).join(' AND ')
end

Instance Method Details

#from_key_and_value(key, value, previous_keys = []) ⇒ Object 



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# File 'lib/neo4j-core/query_clauses.rb', line 171

def from_key_and_value(key, value, previous_keys = [])
  case value
  when Hash
    value.map do |k, v|
      if k.to_sym == :neo_id
        "ID(#{key}) = #{v.to_i}"
      else
        key.to_s + '.' + from_key_and_value(k, v, previous_keys + [key])
      end
    end.join(' AND ')
  when NilClass
    "#{key} IS NULL"
  when Regexp
    pattern = (value.casefold? ? "(?i)" : "") + value.source
    "#{key} =~ #{escape_value(pattern.gsub(/\\/, '\\\\\\'))}"
  when Array
    key_value_string(key, value, previous_keys)
  else
    key_value_string(key, value, previous_keys)
  end
end