diff options
Diffstat (limited to 'activerecord/lib/active_record')
| -rw-r--r-- | activerecord/lib/active_record/associations.rb | 8 | ||||
| -rw-r--r-- | activerecord/lib/active_record/relation/finder_methods.rb | 12 |
2 files changed, 15 insertions, 5 deletions
diff --git a/activerecord/lib/active_record/associations.rb b/activerecord/lib/active_record/associations.rb index 68f8bbeb1c..a62fce4756 100644 --- a/activerecord/lib/active_record/associations.rb +++ b/activerecord/lib/active_record/associations.rb @@ -1167,6 +1167,8 @@ module ActiveRecord # If true, always save the associated objects or destroy them if marked for destruction, # when saving the parent object. If false, never save or destroy the associated objects. # By default, only save associated objects that are new records. + # + # Note that <tt>accepts_nested_attributes_for</tt> sets <tt>:autosave</tt> to <tt>true</tt>. # [:inverse_of] # Specifies the name of the <tt>belongs_to</tt> association on the associated object # that is the inverse of this <tt>has_many</tt> association. Does not work in combination @@ -1288,6 +1290,8 @@ module ActiveRecord # If true, always save the associated object or destroy it if marked for destruction, # when saving the parent object. If false, never save or destroy the associated object. # By default, only save the associated object if it's a new record. + # + # Note that <tt>accepts_nested_attributes_for</tt> sets <tt>:autosave</tt> to <tt>true</tt>. # [:inverse_of] # Specifies the name of the <tt>belongs_to</tt> association on the associated object # that is the inverse of this <tt>has_one</tt> association. Does not work in combination @@ -1404,6 +1408,8 @@ module ActiveRecord # saving the parent object. # If false, never save or destroy the associated object. # By default, only save the associated object if it's a new record. + # + # Note that <tt>accepts_nested_attributes_for</tt> sets <tt>:autosave</tt> to <tt>true</tt>. # [:touch] # If true, the associated object will be touched (the updated_at/on attributes set to now) # when this record is either saved or destroyed. If you specify a symbol, that attribute @@ -1589,6 +1595,8 @@ module ActiveRecord # If false, never save or destroy the associated objects. # By default, only save associated objects that are new records. # + # Note that <tt>accepts_nested_attributes_for</tt> sets <tt>:autosave</tt> to <tt>true</tt>. + # # Option examples: # has_and_belongs_to_many :projects # has_and_belongs_to_many :projects, :include => [ :milestones, :manager ] diff --git a/activerecord/lib/active_record/relation/finder_methods.rb b/activerecord/lib/active_record/relation/finder_methods.rb index e6a67b76fe..974cd326ef 100644 --- a/activerecord/lib/active_record/relation/finder_methods.rb +++ b/activerecord/lib/active_record/relation/finder_methods.rb @@ -146,8 +146,8 @@ module ActiveRecord to_a end - # Returns true if a record exists in the table that matches the +id+ or - # conditions given, or false otherwise. The argument can take five forms: + # Returns +true+ if a record exists in the table that matches the +id+ or + # conditions given, or +false+ otherwise. The argument can take six forms: # # * Integer - Finds the record with this primary key. # * String - Finds the record with a primary key corresponding to this @@ -155,8 +155,9 @@ module ActiveRecord # * Array - Finds the record that matches these +find+-style conditions # (such as <tt>['color = ?', 'red']</tt>). # * Hash - Finds the record that matches these +find+-style conditions - # (such as <tt>{:color => 'red'}</tt>). - # * No args - Returns false if the table is empty, true otherwise. + # (such as <tt>{color: 'red'}</tt>). + # * +false+ - Returns always +false+. + # * No args - Returns +false+ if the table is empty, +true+ otherwise. # # For more information about specifying conditions as a Hash or Array, # see the Conditions section in the introduction to ActiveRecord::Base. @@ -168,7 +169,8 @@ module ActiveRecord # Person.exists?(5) # Person.exists?('5') # Person.exists?(['name LIKE ?', "%#{query}%"]) - # Person.exists?(:name => "David") + # Person.exists?(name: 'David') + # Person.exists?(false) # Person.exists? def exists?(conditions = :none) conditions = conditions.id if ActiveRecord::Model === conditions |