From f1d453b4fd3697c9b5bd9b130d4fd7cce6a776ad Mon Sep 17 00:00:00 2001 From: Matthew Hensrud Date: Fri, 7 Jun 2013 17:37:02 -0400 Subject: Added bang method versions to association basics guide --- guides/source/association_basics.md | 26 +++++++++++++++++++++++++- 1 file changed, 25 insertions(+), 1 deletion(-) (limited to 'guides/source/association_basics.md') diff --git a/guides/source/association_basics.md b/guides/source/association_basics.md index 04a77c3284..d7277b487f 100644 --- a/guides/source/association_basics.md +++ b/guides/source/association_basics.md @@ -721,6 +721,7 @@ When you declare a `belongs_to` association, the declaring class automatically g * `association=(associate)` * `build_association(attributes = {})` * `create_association(attributes = {})` +* `create_association!(attributes = {})` In all of these methods, `association` is replaced with the symbol passed as the first argument to `belongs_to`. For example, given the declaration: @@ -737,6 +738,7 @@ customer customer= build_customer create_customer +create_customer! ``` NOTE: When initializing a new `has_one` or `belongs_to` association you must use the `build_` prefix to build the association, rather than the `association.build` method that would be used for `has_many` or `has_and_belongs_to_many` associations. To create one, use the `create_` prefix. @@ -777,6 +779,10 @@ The `create_association` method returns a new object of the associated type. Thi customer_name: "John Doe") ``` +##### `create_association!(attributes = {})` + +Does the same as create_association above, but raises ActiveRecord::RecordInvalid if the record is invalid. + #### Options for `belongs_to` @@ -1019,6 +1025,7 @@ When you declare a `has_one` association, the declaring class automatically gain * `association=(associate)` * `build_association(attributes = {})` * `create_association(attributes = {})` +* `create_association!(attributes = {})` In all of these methods, `association` is replaced with the symbol passed as the first argument to `has_one`. For example, given the declaration: @@ -1035,6 +1042,7 @@ account account= build_account create_account +create_account! ``` NOTE: When initializing a new `has_one` or `belongs_to` association you must use the `build_` prefix to build the association, rather than the `association.build` method that would be used for `has_many` or `has_and_belongs_to_many` associations. To create one, use the `create_` prefix. @@ -1073,6 +1081,10 @@ The `create_association` method returns a new object of the associated type. Thi @account = @supplier.create_account(terms: "Net 30") ``` +##### `create_association!(attributes = {})` + +Does the same as create_association above, but raises ActiveRecord::RecordInvalid if the record is invalid. + #### Options for `has_one` While Rails uses intelligent defaults that will work well in most situations, there may be times when you want to customize the behavior of the `has_one` association reference. Such customizations can easily be accomplished by passing options when you create the association. For example, this association uses two such options: @@ -1285,6 +1297,7 @@ When you declare a `has_many` association, the declaring class automatically gai * `collection.exists?(...)` * `collection.build(attributes = {}, ...)` * `collection.create(attributes = {})` +* `collection.create!(attributes = {})` In all of these methods, `collection` is replaced with the symbol passed as the first argument to `has_many`, and `collection_singular` is replaced with the singularized version of that symbol. For example, given the declaration: @@ -1312,6 +1325,7 @@ orders.where(...) orders.exists?(...) orders.build(attributes = {}, ...) orders.create(attributes = {}) +orders.create!(attributes = {}) ``` ##### `collection(force_reload = false)` @@ -1427,6 +1441,10 @@ The `collection.create` method returns a new object of the associated type. This order_number: "A12345") ``` +##### `collection.create!(attributes = {})` + +Does the same as collection.create above, but raises ActiveRecord::RecordInvalid if the record is invalid. + #### Options for `has_many` While Rails uses intelligent defaults that will work well in most situations, there may be times when you want to customize the behavior of the `has_many` association reference. Such customizations can easily be accomplished by passing options when you create the association. For example, this association uses two such options: @@ -1768,6 +1786,7 @@ When you declare a `has_and_belongs_to_many` association, the declaring class au * `collection.exists?(...)` * `collection.build(attributes = {})` * `collection.create(attributes = {})` +* `collection.create!(attributes = {})` In all of these methods, `collection` is replaced with the symbol passed as the first argument to `has_and_belongs_to_many`, and `collection_singular` is replaced with the singularized version of that symbol. For example, given the declaration: @@ -1795,6 +1814,7 @@ assemblies.where(...) assemblies.exists?(...) assemblies.build(attributes = {}, ...) assemblies.create(attributes = {}) +assemblies.create!(attributes = {}) ``` ##### Additional Column Methods @@ -1914,6 +1934,10 @@ The `collection.create` method returns a new object of the associated type. This @assembly = @part.assemblies.create({assembly_name: "Transmission housing"}) ``` +##### `collection.create!(attributes = {})` + +Does the same as collection.create, but raises ActiveRecord::RecordInvalid if the record is invalid. + #### Options for `has_and_belongs_to_many` While Rails uses intelligent defaults that will work well in most situations, there may be times when you want to customize the behavior of the `has_and_belongs_to_many` association reference. Such customizations can easily be accomplished by passing options when you create the association. For example, this association uses two such options: @@ -2175,4 +2199,4 @@ Extensions can refer to the internals of the association proxy using these three * `proxy_association.owner` returns the object that the association is a part of. * `proxy_association.reflection` returns the reflection object that describes the association. -* `proxy_association.target` returns the associated object for `belongs_to` or `has_one`, or the collection of associated objects for `has_many` or `has_and_belongs_to_many`. +* `proxy_association.target` returns the associated object for `belongs_to` or `has_one`, or the collection of associated objects for `has_many` or `has_and_belongs_to_many`. \ No newline at end of file -- cgit v1.2.3