Class: Neo4j::Core::QueryClauses::CreateClause

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

Direct Known Subclasses

CreateUniqueClause, MergeClause

Constant Summary collapse

KEYWORD = 
'CREATE'

Constants inherited from Clause

Neo4j::Core::QueryClauses::Clause::AND, Neo4j::Core::QueryClauses::Clause::COMMA_SPACE, Neo4j::Core::QueryClauses::Clause::UNDERSCORE

Constants included from CypherTranslator

CypherTranslator::EMPTY_PROPS, CypherTranslator::SANITIZE_ESCAPED_REGEXP

Instance Attribute Summary

Attributes inherited from Clause

#arg, #params

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Clause

#_nested_value_hash?, #_use_key_for_var?, #attributes_from_key_and_value, from_arg, from_args, #initialize, keyword, keyword_downcase, #label_from_key_and_value, #node_from_key_and_value, to_cypher, #value, #var_from_key_and_value

Methods included from CypherTranslator

#create_escape_value, #cypher_prop_list!, #cypher_string, #escape_quotes, #escape_value, #label_string, #prop_identifier, #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 379

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

Instance Method Details

#from_hash(hash) ⇒ Object 



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# File 'lib/neo4j-core/query_clauses.rb', line 364

def from_hash(hash)
  if hash.values.any? { |value| value.is_a?(Hash) }
    hash.map do |key, value|
      from_key_and_value(key, value)
    end
  else
    "(#{attributes_string(hash)})"
  end
end

#from_key_and_value(key, value) ⇒ Object 



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# File 'lib/neo4j-core/query_clauses.rb', line 374

def from_key_and_value(key, value)
  node_from_key_and_value(key, value, prefer: :label)
end

#from_string(value) ⇒ Object 



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# File 'lib/neo4j-core/query_clauses.rb', line 356

def from_string(value)
  value
end

#from_symbol(value) ⇒ Object 



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# File 'lib/neo4j-core/query_clauses.rb', line 360

def from_symbol(value)
  "(:#{value})"
end