diff options
Diffstat (limited to 'activerecord/lib/active_record/associations.rb')
| -rw-r--r-- | activerecord/lib/active_record/associations.rb | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/activerecord/lib/active_record/associations.rb b/activerecord/lib/active_record/associations.rb index 840f71bef2..a61c0336db 100644 --- a/activerecord/lib/active_record/associations.rb +++ b/activerecord/lib/active_record/associations.rb @@ -349,6 +349,7 @@ module ActiveRecord # build_other(attributes={}) | X | | X # create_other(attributes={}) | X | | X # create_other!(attributes={}) | X | | X + # reload_other | X | X | X # # === Collection associations (one-to-many / many-to-many) # | | | has_many @@ -378,6 +379,7 @@ module ActiveRecord # others.exists? | X | X | X # others.distinct | X | X | X # others.reset | X | X | X + # others.reload | X | X | X # # === Overriding generated methods # @@ -1190,8 +1192,8 @@ module ActiveRecord # <tt>has_many :clients</tt> would add among others <tt>clients.empty?</tt>. # # [collection] - # Returns an array of all the associated objects. - # An empty array is returned if none are found. + # Returns a Relation of all the associated objects. + # An empty Relation is returned if none are found. # [collection<<(object, ...)] # Adds one or more objects to the collection by setting their foreign keys to the collection's primary key. # Note that this operation instantly fires update SQL without waiting for the save or update call on the @@ -1248,6 +1250,9 @@ module ActiveRecord # [collection.create!(attributes = {})] # Does the same as <tt>collection.create</tt>, but raises ActiveRecord::RecordInvalid # if the record is invalid. + # [collection.reload] + # Returns a Relation of all of the associated objects, forcing a database read. + # An empty Relation is returned if none are found. # # === Example # @@ -1267,6 +1272,7 @@ module ActiveRecord # * <tt>Firm#clients.build</tt> (similar to <tt>Client.new("firm_id" => id)</tt>) # * <tt>Firm#clients.create</tt> (similar to <tt>c = Client.new("firm_id" => id); c.save; c</tt>) # * <tt>Firm#clients.create!</tt> (similar to <tt>c = Client.new("firm_id" => id); c.save!</tt>) + # * <tt>Firm#clients.reload</tt> # The declaration can also include an +options+ hash to specialize the behavior of the association. # # === Scopes @@ -1426,6 +1432,8 @@ module ActiveRecord # [create_association!(attributes = {})] # Does the same as <tt>create_association</tt>, but raises ActiveRecord::RecordInvalid # if the record is invalid. + # [reload_association] + # Returns the associated object, forcing a database read. # # === Example # @@ -1435,6 +1443,7 @@ module ActiveRecord # * <tt>Account#build_beneficiary</tt> (similar to <tt>Beneficiary.new("account_id" => id)</tt>) # * <tt>Account#create_beneficiary</tt> (similar to <tt>b = Beneficiary.new("account_id" => id); b.save; b</tt>) # * <tt>Account#create_beneficiary!</tt> (similar to <tt>b = Beneficiary.new("account_id" => id); b.save!; b</tt>) + # * <tt>Account#reload_beneficiary</tt> # # === Scopes # @@ -1555,6 +1564,8 @@ module ActiveRecord # [create_association!(attributes = {})] # Does the same as <tt>create_association</tt>, but raises ActiveRecord::RecordInvalid # if the record is invalid. + # [reload_association] + # Returns the associated object, forcing a database read. # # === Example # @@ -1564,6 +1575,7 @@ module ActiveRecord # * <tt>Post#build_author</tt> (similar to <tt>post.author = Author.new</tt>) # * <tt>Post#create_author</tt> (similar to <tt>post.author = Author.new; post.author.save; post.author</tt>) # * <tt>Post#create_author!</tt> (similar to <tt>post.author = Author.new; post.author.save!; post.author</tt>) + # * <tt>Post#reload_author</tt> # The declaration can also include an +options+ hash to specialize the behavior of the association. # # === Scopes @@ -1704,8 +1716,8 @@ module ActiveRecord # <tt>has_and_belongs_to_many :categories</tt> would add among others <tt>categories.empty?</tt>. # # [collection] - # Returns an array of all the associated objects. - # An empty array is returned if none are found. + # Returns a Relation of all the associated objects. + # An empty Relation is returned if none are found. # [collection<<(object, ...)] # Adds one or more objects to the collection by creating associations in the join table # (<tt>collection.push</tt> and <tt>collection.concat</tt> are aliases to this method). @@ -1743,6 +1755,9 @@ module ActiveRecord # Returns a new object of the collection type that has been instantiated # with +attributes+, linked to this object through the join table, and that has already been # saved (if it passed the validation). + # [collection.reload] + # Returns a Relation of all of the associated objects, forcing a database read. + # An empty Relation is returned if none are found. # # === Example # @@ -1761,6 +1776,7 @@ module ActiveRecord # * <tt>Developer#projects.exists?(...)</tt> # * <tt>Developer#projects.build</tt> (similar to <tt>Project.new("developer_id" => id)</tt>) # * <tt>Developer#projects.create</tt> (similar to <tt>c = Project.new("developer_id" => id); c.save; c</tt>) + # * <tt>Developer#projects.reload</tt> # The declaration may include an +options+ hash to specialize the behavior of the association. # # === Scopes |