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

Inherits:

Clause

• Object
• Clause
• Neo4j::Core::QueryClauses::CreateClause

show all

Defined in:

lib/neo4j-core/query_clauses.rb

Constant Summary

Constant Summary

Constants included from CypherTranslator

CypherTranslator::EMPTY_PROPS, CypherTranslator::SANITIZE_ESCAPED_REGEXP

Instance Attribute Summary

Attributes inherited from Clause

#params

Class Method Summary (collapse)

• + (Object) clause_string(clauses)

Instance Method Summary (collapse)

• - (Object) from_hash(hash)
• - (Object) from_key_and_value(key, value)
• - (Object) from_string(value)
• - (Object) from_symbol(value)

Methods inherited from Clause

#attributes_from_key_and_value, from_args, #initialize, #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

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# File 'lib/neo4j-core/query_clauses.rb', line 294

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

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# File 'lib/neo4j-core/query_clauses.rb', line 279

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

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# File 'lib/neo4j-core/query_clauses.rb', line 289

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

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# File 'lib/neo4j-core/query_clauses.rb', line 271

def from_string(value)
  value
end

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# File 'lib/neo4j-core/query_clauses.rb', line 275

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