diff options
Diffstat (limited to 'activerecord/lib/active_record/relation/calculations.rb')
| -rw-r--r-- | activerecord/lib/active_record/relation/calculations.rb | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/relation/calculations.rb b/activerecord/lib/active_record/relation/calculations.rb index 75d983d3b8..ab32bfe70a 100644 --- a/activerecord/lib/active_record/relation/calculations.rb +++ b/activerecord/lib/active_record/relation/calculations.rb @@ -118,7 +118,7 @@ module ActiveRecord # Person.all.map(&:name) # # Pluck returns an <tt>Array</tt> of attribute values type-casted to match - # the plucked column name, if it can be deduced. Plucking a SQL fragment + # the plucked column name, if it can be deduced. Plucking an SQL fragment # returns String values by default. # # Examples: @@ -138,6 +138,7 @@ module ActiveRecord # Person.pluck('DATEDIFF(updated_at, created_at)') # # SELECT DATEDIFF(updated_at, created_at) FROM people # # => ['0', '27761', '173'] + # def pluck(column_name) if column_name.is_a?(Symbol) && column_names.include?(column_name.to_s) column_name = "#{table_name}.#{column_name}" |