diff options
Diffstat (limited to 'activerecord/lib/active_record/base.rb')
| -rwxr-xr-x | activerecord/lib/active_record/base.rb | 42 |
1 files changed, 39 insertions, 3 deletions
diff --git a/activerecord/lib/active_record/base.rb b/activerecord/lib/active_record/base.rb index 62e97158ec..5a36ff5ba2 100755 --- a/activerecord/lib/active_record/base.rb +++ b/activerecord/lib/active_record/base.rb @@ -256,6 +256,12 @@ module ActiveRecord #:nodoc: # # Student.find(:all, :conditions => { :grade => [9,11,12] }) # + # When joining tables, nested hashes or keys written in the form 'table_name.column_name' can be used to qualify the table name of a + # particular condition. For instance: + # + # Student.find(:all, :conditions => { :schools => { :type => 'public' }}, :joins => :schools) + # Student.find(:all, :conditions => { 'schools.type' => 'public' }, :joins => :schools) + # # == Overwriting default accessors # # All column values are automatically available through basic accessors on the Active Record object, but sometimes you @@ -854,7 +860,7 @@ module ActiveRecord #:nodoc: # Book.update_all "author = 'David'", "title LIKE '%Rails%'" # # # Update all avatars migrated more than a week ago - # Avatar.update_all ['migrated_at = ?, Time.now.utc], ['migrated_at > ?', 1.week.ago] + # Avatar.update_all ['migrated_at = ?', Time.now.utc], ['migrated_at > ?', 1.week.ago] # # # Update all books that match our conditions, but limit it to 5 ordered by date # Book.update_all "author = 'David'", "title LIKE '%Rails%'", :order => 'created_at', :limit => 5 @@ -1055,6 +1061,21 @@ module ActiveRecord #:nodoc: # # To start from an all-closed default and enable attributes as needed, # have a look at +attr_accessible+. + # + # If the access logic of your application is richer you can use <tt>Hash#except</tt> + # or <tt>Hash#slice</tt> to sanitize the hash of parameters before they are + # passed to Active Record. + # + # For example, it could be the case that the list of protected attributes + # for a given model depends on the role of the user: + # + # # Assumes plan_id is not protected because it depends on the role. + # params[:account] = params[:account].except(:plan_id) unless admin? + # @account.update_attributes(params[:account]) + # + # Note that +attr_protected+ is still applied to the received hash. Thus, + # with this technique you can at most _extend_ the list of protected + # attributes for a particular mass-assignment call. def attr_protected(*attributes) write_inheritable_attribute(:attr_protected, Set.new(attributes.map {|a| a.to_s}) + (protected_attributes || [])) end @@ -1088,6 +1109,21 @@ module ActiveRecord #:nodoc: # # customer.credit_rating = "Average" # customer.credit_rating # => "Average" + # + # If the access logic of your application is richer you can use <tt>Hash#except</tt> + # or <tt>Hash#slice</tt> to sanitize the hash of parameters before they are + # passed to Active Record. + # + # For example, it could be the case that the list of accessible attributes + # for a given model depends on the role of the user: + # + # # Assumes plan_id is accessible because it depends on the role. + # params[:account] = params[:account].except(:plan_id) unless admin? + # @account.update_attributes(params[:account]) + # + # Note that +attr_accessible+ is still applied to the received hash. Thus, + # with this technique you can at most _narrow_ the list of accessible + # attributes for a particular mass-assignment call. def attr_accessible(*attributes) write_inheritable_attribute(:attr_accessible, Set.new(attributes.map(&:to_s)) + (accessible_attributes || [])) end @@ -1382,14 +1418,14 @@ module ActiveRecord #:nodoc: classes rescue # OPTIMIZE this rescue is to fix this test: ./test/cases/reflection_test.rb:56:in `test_human_name_for_column' - # Appearantly the method base_class causes some trouble. + # Apparently the method base_class causes some trouble. # It now works for sure. [self] end # Transforms attribute key names into a more humane format, such as "First name" instead of "first_name". Example: # Person.human_attribute_name("first_name") # => "First name" - # This used to be depricated in favor of humanize, but is now preferred, because it automatically uses the I18n + # This used to be deprecated in favor of humanize, but is now preferred, because it automatically uses the I18n # module now. # Specify +options+ with additional translating options. def human_attribute_name(attribute_key_name, options = {}) |