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-rw-r--r--guides/source/active_record_validations.md36
1 files changed, 18 insertions, 18 deletions
diff --git a/guides/source/active_record_validations.md b/guides/source/active_record_validations.md
index 0df52a655f..b04c7a90e2 100644
--- a/guides/source/active_record_validations.md
+++ b/guides/source/active_record_validations.md
@@ -175,28 +175,28 @@ class Person < ActiveRecord::Base
end
>> p = Person.new
-#=> #<Person id: nil, name: nil>
+# => #<Person id: nil, name: nil>
>> p.errors.messages
-#=> {}
+# => {}
>> p.valid?
-#=> false
+# => false
>> p.errors.messages
-#=> {name:["can't be blank"]}
+# => {name:["can't be blank"]}
>> p = Person.create
-#=> #<Person id: nil, name: nil>
+# => #<Person id: nil, name: nil>
>> p.errors.messages
-#=> {name:["can't be blank"]}
+# => {name:["can't be blank"]}
>> p.save
-#=> false
+# => false
>> p.save!
-#=> ActiveRecord::RecordInvalid: Validation failed: Name can't be blank
+# => ActiveRecord::RecordInvalid: Validation failed: Name can't be blank
>> Person.create!
-#=> ActiveRecord::RecordInvalid: Validation failed: Name can't be blank
+# => ActiveRecord::RecordInvalid: Validation failed: Name can't be blank
```
`invalid?` is simply the inverse of `valid?`. It triggers your validations,
@@ -337,7 +337,7 @@ set. In fact, this set can be any enumerable object.
```ruby
class Account < ActiveRecord::Base
validates :subdomain, exclusion: { in: %w(www us ca jp),
- message: "Subdomain %{value} is reserved." }
+ message: "%{value} is reserved." }
end
```
@@ -616,10 +616,6 @@ The default error message is _"has already been taken"_.
This helper passes the record to a separate class for validation.
```ruby
-class Person < ActiveRecord::Base
- validates_with GoodnessValidator
-end
-
class GoodnessValidator < ActiveModel::Validator
def validate(record)
if record.first_name == "Evil"
@@ -627,6 +623,10 @@ class GoodnessValidator < ActiveModel::Validator
end
end
end
+
+class Person < ActiveRecord::Base
+ validates_with GoodnessValidator
+end
```
NOTE: Errors added to `record.errors[:base]` relate to the state of the record
@@ -644,10 +644,6 @@ Like all other validations, `validates_with` takes the `:if`, `:unless` and
validator class as `options`:
```ruby
-class Person < ActiveRecord::Base
- validates_with GoodnessValidator, fields: [:first_name, :last_name]
-end
-
class GoodnessValidator < ActiveModel::Validator
def validate(record)
if options[:fields].any?{|field| record.send(field) == "Evil" }
@@ -655,6 +651,10 @@ class GoodnessValidator < ActiveModel::Validator
end
end
end
+
+class Person < ActiveRecord::Base
+ validates_with GoodnessValidator, fields: [:first_name, :last_name]
+end
```
Note that the validator will be initialized *only once* for the whole application