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Merge remote branch 'docrails/master'
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commit
4134d7db34
16 changed files with 112 additions and 104 deletions
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@ -65,8 +65,8 @@ simply call the method and optionally call +deliver+ on the return value.
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|
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Calling the method returns a Mail Message object:
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Calling the method returns a Mail Message object:
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|
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message = Notifier.welcome #=> Returns a Mail::Message object
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message = Notifier.welcome # => Returns a Mail::Message object
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message.deliver #=> delivers the email
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message.deliver # => delivers the email
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||||||
|
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Or you can just chain the methods together like:
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Or you can just chain the methods together like:
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|
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@ -107,8 +107,8 @@ modules:
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extend ActiveModel::Naming
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extend ActiveModel::Naming
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end
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end
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|
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NamedPerson.model_name #=> "NamedPerson"
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NamedPerson.model_name # => "NamedPerson"
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NamedPerson.model_name.human #=> "Named person"
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NamedPerson.model_name.human # => "Named person"
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|
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{Learn more}[link:classes/ActiveModel/Naming.html]
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{Learn more}[link:classes/ActiveModel/Naming.html]
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|
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@ -139,7 +139,7 @@ modules:
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end
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end
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Person.human_attribute_name('my_attribute')
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Person.human_attribute_name('my_attribute')
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#=> "My attribute"
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# => "My attribute"
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|
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{Learn more}[link:classes/ActiveModel/Translation.html]
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{Learn more}[link:classes/ActiveModel/Translation.html]
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@ -157,7 +157,7 @@ modules:
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|
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person = Person.new
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person = Person.new
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person.first_name = 'zoolander'
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person.first_name = 'zoolander'
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person.valid? #=> false
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person.valid? # => false
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|
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{Learn more}[link:classes/ActiveModel/Validations.html]
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{Learn more}[link:classes/ActiveModel/Validations.html]
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|
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@ -176,9 +176,9 @@ modules:
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end
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end
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|
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p = ValidatorPerson.new
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p = ValidatorPerson.new
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p.valid? #=> false
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p.valid? # => false
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p.errors.full_messages #=> ["Name must exist"]
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p.errors.full_messages # => ["Name must exist"]
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p.name = "Bob"
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p.name = "Bob"
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p.valid? #=> true
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p.valid? # => true
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|
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{Learn more}[link:classes/ActiveModel/Validator.html]
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{Learn more}[link:classes/ActiveModel/Validator.html]
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|
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@ -18,9 +18,9 @@ module ActiveModel
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# Returns a JSON string representing the model. Some configuration can be
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# Returns a JSON string representing the model. Some configuration can be
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# passed through +options+.
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# passed through +options+.
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#
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#
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# The option <tt>ActiveModel::Base.include_root_in_json</tt> controls the
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# The option <tt>include_root_in_json</tt> controls the top-level behavior
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# top-level behavior of +to_json+. If true (the default) +to_json+ will
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# of +to_json+. If true (the default) +to_json+ will emit a single root
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# emit a single root node named after the object's type. For example:
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# node named after the object's type. For example:
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#
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#
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# konata = User.find(1)
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# konata = User.find(1)
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# konata.to_json
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# konata.to_json
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|
|
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@ -966,7 +966,7 @@ during calendar reform. #7649, #7724 [fedot, Geoff Buesing]
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* Made increment_counter/decrement_counter play nicely with optimistic locking, and added a more general update_counters method [Jamis Buck]
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* Made increment_counter/decrement_counter play nicely with optimistic locking, and added a more general update_counters method [Jamis Buck]
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|
|
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* Reworked David's query cache to be available as Model.cache {...}. For the duration of the block no select query should be run more then once. Any inserts/deletes/executes will flush the whole cache however [Tobias Lütke]
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* Reworked David's query cache to be available as Model.cache {...}. For the duration of the block no select query should be run more then once. Any inserts/deletes/executes will flush the whole cache however [Tobias Lütke]
|
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Task.cache { Task.find(1); Task.find(1) } #=> 1 query
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Task.cache { Task.find(1); Task.find(1) } # => 1 query
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|
|
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* When dealing with SQLite3, use the table_info pragma helper, so that the bindings can do some translation for when sqlite3 breaks incompatibly between point releases. [Jamis Buck]
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* When dealing with SQLite3, use the table_info pragma helper, so that the bindings can do some translation for when sqlite3 breaks incompatibly between point releases. [Jamis Buck]
|
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|
|
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|
|
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@ -311,7 +311,8 @@ module ActiveRecord
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# You can set the :autosave option on a <tt>has_one</tt>, <tt>belongs_to</tt>,
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# You can set the :autosave option on a <tt>has_one</tt>, <tt>belongs_to</tt>,
|
||||||
# <tt>has_many</tt>, or <tt>has_and_belongs_to_many</tt> association. Setting it
|
# <tt>has_many</tt>, or <tt>has_and_belongs_to_many</tt> association. Setting it
|
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# to +true+ will _always_ save the members, whereas setting it to +false+ will
|
# to +true+ will _always_ save the members, whereas setting it to +false+ will
|
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# _never_ save the members.
|
# _never_ save the members. More details about :autosave option is available at
|
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|
# autosave_association.rb .
|
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#
|
#
|
||||||
# === One-to-one associations
|
# === One-to-one associations
|
||||||
#
|
#
|
||||||
|
@ -956,8 +957,7 @@ module ActiveRecord
|
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# If false, don't validate the associated objects when saving the parent object. true by default.
|
# If false, don't validate the associated objects when saving the parent object. true by default.
|
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# [:autosave]
|
# [:autosave]
|
||||||
# If true, always save the associated objects or destroy them if marked for destruction,
|
# If true, always save the associated objects or destroy them if marked for destruction,
|
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# when saving the parent object.
|
# when saving the parent object. If false, never save or destroy the associated objects.
|
||||||
# If false, never save or destroy the associated objects.
|
|
||||||
# By default, only save associated objects that are new records.
|
# By default, only save associated objects that are new records.
|
||||||
# [:inverse_of]
|
# [:inverse_of]
|
||||||
# Specifies the name of the <tt>belongs_to</tt> association on the associated object
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# Specifies the name of the <tt>belongs_to</tt> association on the associated object
|
||||||
|
|
|
@ -3,13 +3,13 @@ require 'active_support/core_ext/array/wrap'
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module ActiveRecord
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module ActiveRecord
|
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# = Active Record Autosave Association
|
# = Active Record Autosave Association
|
||||||
#
|
#
|
||||||
# AutosaveAssociation is a module that takes care of automatically saving
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# +AutosaveAssociation+ is a module that takes care of automatically saving
|
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# associacted records when parent is saved. In addition to saving, it
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# associacted records when their parent is saved. In addition to saving, it
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||||||
# also destroys any associated records that were marked for destruction.
|
# also destroys any associated records that were marked for destruction.
|
||||||
# (See mark_for_destruction and marked_for_destruction?)
|
# (See +mark_for_destruction+ and <tt>marked_for_destruction?</tt>).
|
||||||
#
|
#
|
||||||
# Saving of the parent, its associations, and the destruction of marked
|
# Saving of the parent, its associations, and the destruction of marked
|
||||||
# associations, all happen inside 1 transaction. This should never leave the
|
# associations, all happen inside a transaction. This should never leave the
|
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# database in an inconsistent state.
|
# database in an inconsistent state.
|
||||||
#
|
#
|
||||||
# If validations for any of the associations fail, their error messages will
|
# If validations for any of the associations fail, their error messages will
|
||||||
|
@ -18,6 +18,9 @@ module ActiveRecord
|
||||||
# Note that it also means that associations marked for destruction won't
|
# Note that it also means that associations marked for destruction won't
|
||||||
# be destroyed directly. They will however still be marked for destruction.
|
# be destroyed directly. They will however still be marked for destruction.
|
||||||
#
|
#
|
||||||
|
# Note that <tt>:autosave => false</tt> is not same as not declaring <tt>:autosave</tt>.
|
||||||
|
# When the <tt>:autosave</tt> option is not present new associations are saved.
|
||||||
|
#
|
||||||
# === One-to-one Example
|
# === One-to-one Example
|
||||||
#
|
#
|
||||||
# class Post
|
# class Post
|
||||||
|
@ -46,6 +49,7 @@ module ActiveRecord
|
||||||
# post.author.marked_for_destruction? # => true
|
# post.author.marked_for_destruction? # => true
|
||||||
#
|
#
|
||||||
# Note that the model is _not_ yet removed from the database:
|
# Note that the model is _not_ yet removed from the database:
|
||||||
|
#
|
||||||
# id = post.author.id
|
# id = post.author.id
|
||||||
# Author.find_by_id(id).nil? # => false
|
# Author.find_by_id(id).nil? # => false
|
||||||
#
|
#
|
||||||
|
@ -53,40 +57,49 @@ module ActiveRecord
|
||||||
# post.reload.author # => nil
|
# post.reload.author # => nil
|
||||||
#
|
#
|
||||||
# Now it _is_ removed from the database:
|
# Now it _is_ removed from the database:
|
||||||
|
#
|
||||||
# Author.find_by_id(id).nil? # => true
|
# Author.find_by_id(id).nil? # => true
|
||||||
#
|
#
|
||||||
# === One-to-many Example
|
# === One-to-many Example
|
||||||
#
|
#
|
||||||
# Consider a Post model with many Comments:
|
# When <tt>:autosave</tt> is not declared new children are saved when their parent is saved:
|
||||||
|
#
|
||||||
|
# class Post
|
||||||
|
# has_many :comments # :autosave option is no declared
|
||||||
|
# end
|
||||||
|
#
|
||||||
|
# post = Post.new(:title => 'ruby rocks')
|
||||||
|
# post.comments.build(:body => 'hello world')
|
||||||
|
# post.save # => saves both post and comment
|
||||||
|
#
|
||||||
|
# post = Post.create(:title => 'ruby rocks')
|
||||||
|
# post.comments.build(:body => 'hello world')
|
||||||
|
# post.save # => saves both post and comment
|
||||||
|
#
|
||||||
|
# post = Post.create(:title => 'ruby rocks')
|
||||||
|
# post.comments.create(:body => 'hello world')
|
||||||
|
# post.save # => saves both post and comment
|
||||||
|
#
|
||||||
|
# When <tt>:autosave</tt> is true all children is saved, no matter whether they are new records:
|
||||||
#
|
#
|
||||||
# class Post
|
# class Post
|
||||||
# has_many :comments, :autosave => true
|
# has_many :comments, :autosave => true
|
||||||
# end
|
# end
|
||||||
#
|
#
|
||||||
# Saving changes to the parent and its associated model can now be performed
|
# post = Post.create(:title => 'ruby rocks')
|
||||||
# automatically _and_ atomically:
|
# post.comments.create(:body => 'hello world')
|
||||||
|
# post.comments[0].body = 'hi everyone'
|
||||||
|
# post.save # => saves both post and comment, with 'hi everyone' as title
|
||||||
#
|
#
|
||||||
# post = Post.find(1)
|
# Destroying one of the associated models as part of the parent's save action
|
||||||
# post.title # => "The current global position of migrating ducks"
|
# is as simple as marking it for destruction:
|
||||||
# post.comments.first.body # => "Wow, awesome info thanks!"
|
|
||||||
# post.comments.last.body # => "Actually, your article should be named differently."
|
|
||||||
#
|
|
||||||
# post.title = "On the migration of ducks"
|
|
||||||
# post.comments.last.body = "Actually, your article should be named differently. [UPDATED]: You are right, thanks."
|
|
||||||
#
|
|
||||||
# post.save
|
|
||||||
# post.reload
|
|
||||||
# post.title # => "On the migration of ducks"
|
|
||||||
# post.comments.last.body # => "Actually, your article should be named differently. [UPDATED]: You are right, thanks."
|
|
||||||
#
|
|
||||||
# Destroying one of the associated models members, as part of the parent's
|
|
||||||
# save action, is as simple as marking it for destruction:
|
|
||||||
#
|
#
|
||||||
# post.comments.last.mark_for_destruction
|
# post.comments.last.mark_for_destruction
|
||||||
# post.comments.last.marked_for_destruction? # => true
|
# post.comments.last.marked_for_destruction? # => true
|
||||||
# post.comments.length # => 2
|
# post.comments.length # => 2
|
||||||
#
|
#
|
||||||
# Note that the model is _not_ yet removed from the database:
|
# Note that the model is _not_ yet removed from the database:
|
||||||
|
#
|
||||||
# id = post.comments.last.id
|
# id = post.comments.last.id
|
||||||
# Comment.find_by_id(id).nil? # => false
|
# Comment.find_by_id(id).nil? # => false
|
||||||
#
|
#
|
||||||
|
@ -94,37 +107,13 @@ module ActiveRecord
|
||||||
# post.reload.comments.length # => 1
|
# post.reload.comments.length # => 1
|
||||||
#
|
#
|
||||||
# Now it _is_ removed from the database:
|
# Now it _is_ removed from the database:
|
||||||
|
#
|
||||||
# Comment.find_by_id(id).nil? # => true
|
# Comment.find_by_id(id).nil? # => true
|
||||||
#
|
#
|
||||||
# === Validation
|
# === Validation
|
||||||
#
|
#
|
||||||
# Validation is performed on the parent as usual, but also on all autosave
|
# Validations on children records are run or not depending on the <tt>:validate</tt>
|
||||||
# enabled associations. If any of the associations fail validation, its
|
# option of the association.
|
||||||
# error messages will be applied on the parents errors object and validation
|
|
||||||
# of the parent will fail.
|
|
||||||
#
|
|
||||||
# Consider a Post model with Author which validates the presence of its name
|
|
||||||
# attribute:
|
|
||||||
#
|
|
||||||
# class Post
|
|
||||||
# has_one :author, :autosave => true
|
|
||||||
# end
|
|
||||||
#
|
|
||||||
# class Author
|
|
||||||
# validates_presence_of :name
|
|
||||||
# end
|
|
||||||
#
|
|
||||||
# post = Post.find(1)
|
|
||||||
# post.author.name = ''
|
|
||||||
# post.save # => false
|
|
||||||
# post.errors # => #<ActiveRecord::Errors:0x174498c @errors={"author.name"=>["can't be blank"]}, @base=#<Post ...>>
|
|
||||||
#
|
|
||||||
# No validations will be performed on the associated models when validations
|
|
||||||
# are skipped for the parent:
|
|
||||||
#
|
|
||||||
# post = Post.find(1)
|
|
||||||
# post.author.name = ''
|
|
||||||
# post.save(:validate => false) # => true
|
|
||||||
module AutosaveAssociation
|
module AutosaveAssociation
|
||||||
extend ActiveSupport::Concern
|
extend ActiveSupport::Concern
|
||||||
|
|
||||||
|
|
|
@ -1147,6 +1147,16 @@ MSG
|
||||||
# class Person < ActiveRecord::Base
|
# class Person < ActiveRecord::Base
|
||||||
# default_scope order('last_name, first_name')
|
# default_scope order('last_name, first_name')
|
||||||
# end
|
# end
|
||||||
|
#
|
||||||
|
# <tt>default_scope</tt> is also applied while creating/building a record. It is not
|
||||||
|
# applied while updating a record.
|
||||||
|
#
|
||||||
|
# class Article < ActiveRecord::Base
|
||||||
|
# default_scope where(:published => true)
|
||||||
|
# end
|
||||||
|
#
|
||||||
|
# Article.new.published # => true
|
||||||
|
# Article.create.published # => true
|
||||||
def default_scope(options = {})
|
def default_scope(options = {})
|
||||||
self.default_scoping << construct_finder_arel(options, default_scoping.pop)
|
self.default_scoping << construct_finder_arel(options, default_scoping.pop)
|
||||||
end
|
end
|
||||||
|
|
|
@ -88,6 +88,15 @@ module ActiveRecord
|
||||||
# end
|
# end
|
||||||
# end
|
# end
|
||||||
# end
|
# end
|
||||||
|
#
|
||||||
|
# Scopes can also be used while creating/building a record.
|
||||||
|
#
|
||||||
|
# class Article < ActiveRecord::Base
|
||||||
|
# scope :published, where(:published => true)
|
||||||
|
# end
|
||||||
|
#
|
||||||
|
# Article.published.new.published # => true
|
||||||
|
# Article.published.create.published # => true
|
||||||
def scope(name, scope_options = {}, &block)
|
def scope(name, scope_options = {}, &block)
|
||||||
name = name.to_sym
|
name = name.to_sym
|
||||||
valid_scope_name?(name)
|
valid_scope_name?(name)
|
||||||
|
|
|
@ -41,7 +41,7 @@ module ActiveRecord
|
||||||
|
|
||||||
# Returns the AggregateReflection object for the named +aggregation+ (use the symbol).
|
# Returns the AggregateReflection object for the named +aggregation+ (use the symbol).
|
||||||
#
|
#
|
||||||
# Account.reflect_on_aggregation(:balance) #=> the balance AggregateReflection
|
# Account.reflect_on_aggregation(:balance) # => the balance AggregateReflection
|
||||||
#
|
#
|
||||||
def reflect_on_aggregation(aggregation)
|
def reflect_on_aggregation(aggregation)
|
||||||
reflections[aggregation].is_a?(AggregateReflection) ? reflections[aggregation] : nil
|
reflections[aggregation].is_a?(AggregateReflection) ? reflections[aggregation] : nil
|
||||||
|
|
|
@ -34,7 +34,7 @@ lifecycle methods that operate against a persistent store.
|
||||||
|
|
||||||
# Find a person with id = 1
|
# Find a person with id = 1
|
||||||
ryan = Person.find(1)
|
ryan = Person.find(1)
|
||||||
Person.exists?(1) #=> true
|
Person.exists?(1) # => true
|
||||||
|
|
||||||
As you can see, the methods are quite similar to Active Record's methods for dealing with database
|
As you can see, the methods are quite similar to Active Record's methods for dealing with database
|
||||||
records. But rather than dealing directly with a database record, you're dealing with HTTP resources (which may or may not be database records).
|
records. But rather than dealing directly with a database record, you're dealing with HTTP resources (which may or may not be database records).
|
||||||
|
@ -69,8 +69,8 @@ for a request for a single element, the XML of that item is expected in response
|
||||||
The XML document that is received is used to build a new object of type Person, with each
|
The XML document that is received is used to build a new object of type Person, with each
|
||||||
XML element becoming an attribute on the object.
|
XML element becoming an attribute on the object.
|
||||||
|
|
||||||
ryan.is_a? Person #=> true
|
ryan.is_a? Person # => true
|
||||||
ryan.attribute1 #=> 'value1'
|
ryan.attribute1 # => 'value1'
|
||||||
|
|
||||||
Any complex element (one that contains other elements) becomes its own object:
|
Any complex element (one that contains other elements) becomes its own object:
|
||||||
|
|
||||||
|
@ -81,8 +81,8 @@ Any complex element (one that contains other elements) becomes its own object:
|
||||||
# for GET http://api.people.com:3000/people/1.xml
|
# for GET http://api.people.com:3000/people/1.xml
|
||||||
#
|
#
|
||||||
ryan = Person.find(1)
|
ryan = Person.find(1)
|
||||||
ryan.complex #=> <Person::Complex::xxxxx>
|
ryan.complex # => <Person::Complex::xxxxx>
|
||||||
ryan.complex.attribute2 #=> 'value2'
|
ryan.complex.attribute2 # => 'value2'
|
||||||
|
|
||||||
Collections can also be requested in a similar fashion
|
Collections can also be requested in a similar fashion
|
||||||
|
|
||||||
|
@ -96,8 +96,8 @@ Collections can also be requested in a similar fashion
|
||||||
# for GET http://api.people.com:3000/people.xml
|
# for GET http://api.people.com:3000/people.xml
|
||||||
#
|
#
|
||||||
people = Person.find(:all)
|
people = Person.find(:all)
|
||||||
people.first #=> <Person::xxx 'first' => 'Ryan' ...>
|
people.first # => <Person::xxx 'first' => 'Ryan' ...>
|
||||||
people.last #=> <Person::xxx 'first' => 'Jim' ...>
|
people.last # => <Person::xxx 'first' => 'Jim' ...>
|
||||||
|
|
||||||
==== Create
|
==== Create
|
||||||
|
|
||||||
|
@ -118,10 +118,10 @@ as the id of the ARes object.
|
||||||
# Response (201): Location: http://api.people.com:3000/people/2
|
# Response (201): Location: http://api.people.com:3000/people/2
|
||||||
#
|
#
|
||||||
ryan = Person.new(:first => 'Ryan')
|
ryan = Person.new(:first => 'Ryan')
|
||||||
ryan.new? #=> true
|
ryan.new? # => true
|
||||||
ryan.save #=> true
|
ryan.save # => true
|
||||||
ryan.new? #=> false
|
ryan.new? # => false
|
||||||
ryan.id #=> 2
|
ryan.id # => 2
|
||||||
|
|
||||||
==== Update
|
==== Update
|
||||||
|
|
||||||
|
@ -139,9 +139,9 @@ server side was successful.
|
||||||
# is expected with code (204)
|
# is expected with code (204)
|
||||||
#
|
#
|
||||||
ryan = Person.find(1)
|
ryan = Person.find(1)
|
||||||
ryan.first #=> 'Ryan'
|
ryan.first # => 'Ryan'
|
||||||
ryan.first = 'Rizzle'
|
ryan.first = 'Rizzle'
|
||||||
ryan.save #=> true
|
ryan.save # => true
|
||||||
|
|
||||||
==== Delete
|
==== Delete
|
||||||
|
|
||||||
|
@ -155,10 +155,10 @@ Destruction of a resource can be invoked as a class and instance method of the r
|
||||||
# is expected with response code (200)
|
# is expected with response code (200)
|
||||||
#
|
#
|
||||||
ryan = Person.find(1)
|
ryan = Person.find(1)
|
||||||
ryan.destroy #=> true
|
ryan.destroy # => true
|
||||||
ryan.exists? #=> false
|
ryan.exists? # => false
|
||||||
Person.delete(2) #=> true
|
Person.delete(2) # => true
|
||||||
Person.exists?(2) #=> false
|
Person.exists?(2) # => false
|
||||||
|
|
||||||
|
|
||||||
You can find more usage information in the ActiveResource::Base documentation.
|
You can find more usage information in the ActiveResource::Base documentation.
|
||||||
|
|
|
@ -245,8 +245,8 @@ ActiveSupport.escape_html_entities_in_json from true to false to match previousl
|
||||||
* Add Array#in_groups which splits or iterates over the array in specified number of groups. #579. [Adrian Mugnolo] Example:
|
* Add Array#in_groups which splits or iterates over the array in specified number of groups. #579. [Adrian Mugnolo] Example:
|
||||||
|
|
||||||
a = (1..10).to_a
|
a = (1..10).to_a
|
||||||
a.in_groups(3) #=> [[1, 2, 3, 4], [5, 6, 7, nil], [8, 9, 10, nil]]
|
a.in_groups(3) # => [[1, 2, 3, 4], [5, 6, 7, nil], [8, 9, 10, nil]]
|
||||||
a.in_groups(3, false) #=> [[1, 2, 3, 4], [5, 6, 7], [8, 9, 10]]
|
a.in_groups(3, false) # => [[1, 2, 3, 4], [5, 6, 7], [8, 9, 10]]
|
||||||
|
|
||||||
* Fix TimeWithZone unmarshaling: coerce unmarshaled Time instances to utc, because Ruby's marshaling of Time instances doesn't respect the zone [Geoff Buesing]
|
* Fix TimeWithZone unmarshaling: coerce unmarshaled Time instances to utc, because Ruby's marshaling of Time instances doesn't respect the zone [Geoff Buesing]
|
||||||
|
|
||||||
|
@ -942,7 +942,7 @@ public for compatibility. [Jeremy Kemper]
|
||||||
* Enhance Symbol#to_proc so it works with list objects, such as multi-dimensional arrays. Closes #5295 [nov@yo.rim.or.jp]. Example:
|
* Enhance Symbol#to_proc so it works with list objects, such as multi-dimensional arrays. Closes #5295 [nov@yo.rim.or.jp]. Example:
|
||||||
|
|
||||||
{1 => "one", 2 => "two", 3 => "three"}.sort_by(&:first).map(&:last)
|
{1 => "one", 2 => "two", 3 => "three"}.sort_by(&:first).map(&:last)
|
||||||
#=> ["one", "two", "three"]
|
# => ["one", "two", "three"]
|
||||||
|
|
||||||
* Added Hash.create_from_xml(string) which will create a hash from a XML string and even typecast if possible [David Heinemeier Hansson]. Example:
|
* Added Hash.create_from_xml(string) which will create a hash from a XML string and even typecast if possible [David Heinemeier Hansson]. Example:
|
||||||
|
|
||||||
|
|
|
@ -29,19 +29,19 @@ class Class
|
||||||
# In such cases, you don't want to do changes in places but use setters:
|
# In such cases, you don't want to do changes in places but use setters:
|
||||||
#
|
#
|
||||||
# Base.setting = []
|
# Base.setting = []
|
||||||
# Base.setting #=> []
|
# Base.setting # => []
|
||||||
# Subclass.setting #=> []
|
# Subclass.setting # => []
|
||||||
#
|
#
|
||||||
# # Appending in child changes both parent and child because it is the same object:
|
# # Appending in child changes both parent and child because it is the same object:
|
||||||
# Subclass.setting << :foo
|
# Subclass.setting << :foo
|
||||||
# Base.setting #=> [:foo]
|
# Base.setting # => [:foo]
|
||||||
# Subclass.setting #=> [:foo]
|
# Subclass.setting # => [:foo]
|
||||||
#
|
#
|
||||||
# # Use setters to not propagate changes:
|
# # Use setters to not propagate changes:
|
||||||
# Base.setting = []
|
# Base.setting = []
|
||||||
# Subclass.setting += [:foo]
|
# Subclass.setting += [:foo]
|
||||||
# Base.setting #=> []
|
# Base.setting # => []
|
||||||
# Subclass.setting #=> [:foo]
|
# Subclass.setting # => [:foo]
|
||||||
#
|
#
|
||||||
# For convenience, a query method is defined as well:
|
# For convenience, a query method is defined as well:
|
||||||
#
|
#
|
||||||
|
|
|
@ -12,8 +12,8 @@ require 'active_support/core_ext/array/extract_options'
|
||||||
# end
|
# end
|
||||||
#
|
#
|
||||||
# Person.hair_colors = [:brown, :black, :blonde, :red]
|
# Person.hair_colors = [:brown, :black, :blonde, :red]
|
||||||
# Person.hair_colors #=> [:brown, :black, :blonde, :red]
|
# Person.hair_colors # => [:brown, :black, :blonde, :red]
|
||||||
# Person.new.hair_colors #=> [:brown, :black, :blonde, :red]
|
# Person.new.hair_colors # => [:brown, :black, :blonde, :red]
|
||||||
#
|
#
|
||||||
# To opt out of the instance writer method, pass :instance_writer => false.
|
# To opt out of the instance writer method, pass :instance_writer => false.
|
||||||
# To opt out of the instance reader method, pass :instance_reader => false.
|
# To opt out of the instance reader method, pass :instance_reader => false.
|
||||||
|
|
|
@ -22,8 +22,8 @@ end
|
||||||
# end
|
# end
|
||||||
#
|
#
|
||||||
# Person.hair_colors = [:brown, :black, :blonde, :red]
|
# Person.hair_colors = [:brown, :black, :blonde, :red]
|
||||||
# Person.hair_colors #=> [:brown, :black, :blonde, :red]
|
# Person.hair_colors # => [:brown, :black, :blonde, :red]
|
||||||
# Person.new.hair_colors #=> [:brown, :black, :blonde, :red]
|
# Person.new.hair_colors # => [:brown, :black, :blonde, :red]
|
||||||
#
|
#
|
||||||
# To opt out of the instance writer method, pass :instance_writer => false.
|
# To opt out of the instance writer method, pass :instance_writer => false.
|
||||||
# To opt out of the instance reader method, pass :instance_reader => false.
|
# To opt out of the instance reader method, pass :instance_reader => false.
|
||||||
|
|
|
@ -550,7 +550,7 @@ build_customer
|
||||||
create_customer
|
create_customer
|
||||||
</ruby>
|
</ruby>
|
||||||
|
|
||||||
h6. _association_(force_reload = false)
|
h6. <em>association</em>(force_reload = false)
|
||||||
|
|
||||||
The <tt><em>association</em></tt> method returns the associated object, if any. If no associated object is found, it returns +nil+.
|
The <tt><em>association</em></tt> method returns the associated object, if any. If no associated object is found, it returns +nil+.
|
||||||
|
|
||||||
|
|
|
@ -371,7 +371,7 @@ The mass-assignment feature may become a problem, as it allows an attacker to se
|
||||||
|
|
||||||
<ruby>
|
<ruby>
|
||||||
def signup
|
def signup
|
||||||
params[:user] #=> {:name => “ow3ned”, :admin => true}
|
params[:user] # => {:name => “ow3ned”, :admin => true}
|
||||||
@user = User.new(params[:user])
|
@user = User.new(params[:user])
|
||||||
end
|
end
|
||||||
</ruby>
|
</ruby>
|
||||||
|
@ -385,7 +385,7 @@ Mass-assignment saves you much work, because you don't have to set each value in
|
||||||
This will set the following parameters in the controller:
|
This will set the following parameters in the controller:
|
||||||
|
|
||||||
<ruby>
|
<ruby>
|
||||||
params[:user] #=> {:name => “ow3ned”, :admin => true}
|
params[:user] # => {:name => “ow3ned”, :admin => true}
|
||||||
</ruby>
|
</ruby>
|
||||||
|
|
||||||
So if you create a new user using mass-assignment, it may be too easy to become an administrator.
|
So if you create a new user using mass-assignment, it may be too easy to become an administrator.
|
||||||
|
@ -423,11 +423,11 @@ attr_accessible :name
|
||||||
If you want to set a protected attribute, you will to have to assign it individually:
|
If you want to set a protected attribute, you will to have to assign it individually:
|
||||||
|
|
||||||
<ruby>
|
<ruby>
|
||||||
params[:user] #=> {:name => "ow3ned", :admin => true}
|
params[:user] # => {:name => "ow3ned", :admin => true}
|
||||||
@user = User.new(params[:user])
|
@user = User.new(params[:user])
|
||||||
@user.admin #=> false # not mass-assigned
|
@user.admin # => false # not mass-assigned
|
||||||
@user.admin = true
|
@user.admin = true
|
||||||
@user.admin #=> true
|
@user.admin # => true
|
||||||
</ruby>
|
</ruby>
|
||||||
|
|
||||||
A more paranoid technique to protect your whole project would be to enforce that all models whitelist their accessible attributes. This can be easily achieved with a very simple initializer:
|
A more paranoid technique to protect your whole project would be to enforce that all models whitelist their accessible attributes. This can be easily achieved with a very simple initializer:
|
||||||
|
|
Loading…
Reference in a new issue