Class: Cyrel::Clause::Base

Inherits:

Object

• Object
• Cyrel::Clause::Base

Defined in:

lib/cyrel/clause.rb

Overview

Abstract method for rendering Cypher clauses. You’d think all subclasses would implement this, but lol, developers.

Direct Known Subclasses

AST::ClauseAdapter, Call, CallSubquery, Create, Delete, Limit, Match, Merge, OrderBy, Remove, Return, Set, Skip, Unwind, Where, With

Instance Method Summary

• #render(query) ⇒ String^?

  Renders the specific Cypher clause fragment.

Instance Method Details

#render(query) ⇒ String^?

Renders the specific Cypher clause fragment. Subclasses must implement this method.

Parameters:

• query (Cyrel::Query) —

  The query object, used for parameter registration and potentially accessing query state (like defined aliases).

Returns:

• (String, nil) —

  The Cypher string fragment for this clause, or nil if the clause is empty/not applicable.

Raises:

• (NotImplementedError)

# File 'lib/cyrel/clause.rb', line 14

def render(query)
  raise NotImplementedError, "#{self.class} must implement the 'render' method"
end