instance method
select_values
Ruby on Rails 5.0.7.2
Signature
select_values(arel, name = nil, binds = [])Returns an array of the values of the first column in a select:
select_values("SELECT id FROM companies LIMIT 3") => [1,2,3]
Parameters
-
arelreq -
nameopt = nil -
bindsopt = []
Source
# File activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb, line 61
def select_values(arel, name = nil, binds = [])
arel, binds = binds_from_relation arel, binds
select_rows(to_sql(arel, binds), name, binds).map(&:first)
end
Defined in activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb line 61
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Defined in ActiveRecord::ConnectionAdapters::DatabaseStatements