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Contents
# rubocop:disable Naming/MethodName
# rubocop:disable Naming/UncommunicativeMethodParamName
module Arel
module Nodes
# https://www.postgresql.org/docs/10/functions-string.html
class Substring < Arel::Nodes::Node
attr_reader :string
attr_reader :pattern
attr_reader :escape
def initialize(string, pattern, escape)
@string = string
@pattern = pattern
@escape = escape
end
end
end
module Visitors
class ToSql
def visit_Arel_Nodes_Substring(o, collector)
collector << 'substring('
visit o.string, collector
collector << ' from '
visit o.pattern, collector
unless o.escape.nil?
collector << ' for '
visit o.escape, collector
end
collector << ')'
end
end
class Dot
def visit_Arel_Nodes_Substring(o)
visit_edge o, 'string'
visit_edge o, 'pattern'
visit_edge o, 'escape'
end
end
end
end
# rubocop:enable Naming/MethodName
# rubocop:enable Naming/UncommunicativeMethodParamName
Version data entries
10 entries across 10 versions & 1 rubygems