diff options
Diffstat (limited to 'activerecord')
| -rw-r--r-- | activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb | 4 | ||||
| -rw-r--r-- | activerecord/lib/active_record/reflection.rb | 30 | ||||
| -rw-r--r-- | activerecord/lib/active_record/sanitization.rb | 75 | ||||
| -rw-r--r-- | activerecord/test/cases/associations/inverse_associations_test.rb | 13 | ||||
| -rw-r--r-- | activerecord/test/models/company.rb | 3 | ||||
| -rw-r--r-- | activerecord/test/models/developer.rb | 3 | ||||
| -rw-r--r-- | activerecord/test/models/project.rb | 2 | ||||
| -rw-r--r-- | activerecord/test/schema/schema.rb | 2 |
8 files changed, 97 insertions, 35 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb index 285b4065b1..7e53f8958a 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb @@ -507,7 +507,7 @@ module ActiveRecord raise NotImplementedError, "change_column_default is not implemented" end - # Sets or removes a +NOT NULL+ constraint on a column. The +null+ flag + # Sets or removes a <tt>NOT NULL</tt> constraint on a column. The +null+ flag # indicates whether the value can be +NULL+. For example # # change_column_null(:users, :nickname, false) @@ -519,7 +519,7 @@ module ActiveRecord # allows them to be +NULL+ (drops the constraint). # # The method accepts an optional fourth argument to replace existing - # +NULL+s with some other value. Use that one when enabling the + # <tt>NULL</tt>s with some other value. Use that one when enabling the # constraint if needed, since otherwise those rows would not be valid. # # Please note the fourth argument does not set a column's default. diff --git a/activerecord/lib/active_record/reflection.rb b/activerecord/lib/active_record/reflection.rb index 4e0fc407bc..65ec356735 100644 --- a/activerecord/lib/active_record/reflection.rb +++ b/activerecord/lib/active_record/reflection.rb @@ -175,6 +175,20 @@ module ActiveRecord end end + def inverse_of + return unless inverse_name + + @inverse_of ||= klass._reflect_on_association inverse_name + end + + def check_validity_of_inverse! + unless polymorphic? + if has_inverse? && inverse_of.nil? + raise InverseOfAssociationNotFoundError.new(self) + end + end + end + # This shit is nasty. We need to avoid the following situation: # # * An associated record is deleted via record.destroy @@ -377,14 +391,6 @@ module ActiveRecord check_validity_of_inverse! end - def check_validity_of_inverse! - unless polymorphic? - if has_inverse? && inverse_of.nil? - raise InverseOfAssociationNotFoundError.new(self) - end - end - end - def check_preloadable! return unless scope @@ -436,12 +442,6 @@ module ActiveRecord inverse_name end - def inverse_of - return unless inverse_name - - @inverse_of ||= klass._reflect_on_association inverse_name - end - def polymorphic_inverse_of(associated_class) if has_inverse? if inverse_relationship = associated_class._reflect_on_association(options[:inverse_of]) @@ -924,6 +924,8 @@ module ActiveRecord klass.primary_key || raise(UnknownPrimaryKey.new(klass)) end + def inverse_name; delegate_reflection.send(:inverse_name); end + private def derive_class_name # get the class_name of the belongs_to association of the through reflection diff --git a/activerecord/lib/active_record/sanitization.rb b/activerecord/lib/active_record/sanitization.rb index 32f4229977..7f6664ea50 100644 --- a/activerecord/lib/active_record/sanitization.rb +++ b/activerecord/lib/active_record/sanitization.rb @@ -4,7 +4,7 @@ module ActiveRecord module ClassMethods # Used to sanitize objects before they're used in an SQL SELECT statement. Delegates to <tt>connection.quote</tt>. - def sanitize(object) #:nodoc: + def sanitize(object) # :nodoc: connection.quote(object) end alias_method :quote_value, :sanitize @@ -13,8 +13,15 @@ module ActiveRecord # Accepts an array or string of SQL conditions and sanitizes # them into a valid SQL fragment for a WHERE clause. - # ["name='%s' and group_id='%s'", "foo'bar", 4] returns "name='foo''bar' and group_id='4'" - # "name='foo''bar' and group_id='4'" returns "name='foo''bar' and group_id='4'" + # + # sanitize_sql_for_conditions(["name=? and group_id=?", "foo'bar", 4]) + # # => "name='foo''bar' and group_id=4" + # + # sanitize_sql_for_conditions(["name='%s' and group_id='%s'", "foo'bar", 4]) + # # => "name='foo''bar' and group_id='4'" + # + # sanitize_sql_for_conditions("name='foo''bar' and group_id='4'") + # # => "name='foo''bar' and group_id='4'" def sanitize_sql_for_conditions(condition) return nil if condition.blank? @@ -28,7 +35,15 @@ module ActiveRecord # Accepts an array, hash, or string of SQL conditions and sanitizes # them into a valid SQL fragment for a SET clause. - # { name: nil, group_id: 4 } returns "name = NULL , group_id='4'" + # + # sanitize_sql_for_assignment(["name=? and group_id=?", nil, 4]) + # # => "name=NULL and group_id=4" + # + # Post.send(:sanitize_sql_for_assignment, { name: nil, group_id: 4 }) + # # => "`posts`.`name` = NULL, `posts`.`group_id` = 4" + # + # sanitize_sql_for_assignment("name=NULL and group_id='4'") + # # => "name=NULL and group_id='4'" def sanitize_sql_for_assignment(assignments, default_table_name = self.table_name) case assignments when Array; sanitize_sql_array(assignments) @@ -40,14 +55,18 @@ module ActiveRecord # Accepts a hash of SQL conditions and replaces those attributes # that correspond to a +composed_of+ relationship with their expanded # aggregate attribute values. + # # Given: - # class Person < ActiveRecord::Base - # composed_of :address, class_name: "Address", - # mapping: [%w(address_street street), %w(address_city city)] - # end + # + # class Person < ActiveRecord::Base + # composed_of :address, class_name: "Address", + # mapping: [%w(address_street street), %w(address_city city)] + # end + # # Then: - # { address: Address.new("813 abc st.", "chicago") } - # # => { address_street: "813 abc st.", address_city: "chicago" } + # + # { address: Address.new("813 abc st.", "chicago") } + # # => { address_street: "813 abc st.", address_city: "chicago" } def expand_hash_conditions_for_aggregates(attrs) expanded_attrs = {} attrs.each do |attr, value| @@ -68,8 +87,9 @@ module ActiveRecord end # Sanitizes a hash of attribute/value pairs into SQL conditions for a SET clause. - # { status: nil, group_id: 1 } - # # => "status = NULL , group_id = 1" + # + # sanitize_sql_hash_for_assignment({ status: nil, group_id: 1 }, "posts") + # # => "`posts`.`status` = NULL, `posts`.`group_id` = 1" def sanitize_sql_hash_for_assignment(attrs, table) c = connection attrs.map do |attr, value| @@ -79,7 +99,19 @@ module ActiveRecord end # Sanitizes a +string+ so that it is safe to use within an SQL - # LIKE statement. This method uses +escape_character+ to escape all occurrences of "\", "_" and "%" + # LIKE statement. This method uses +escape_character+ to escape all occurrences of "\", "_" and "%". + # + # sanitize_sql_like("100%") + # # => "100\\%" + # + # sanitize_sql_like("snake_cased_string") + # # => "snake\\_cased\\_string" + # + # sanitize_sql_like("100%", "!") + # # => "100!%" + # + # sanitize_sql_like("snake_cased_string", "!") + # # => "snake!_cased!_string" def sanitize_sql_like(string, escape_character = "\\") pattern = Regexp.union(escape_character, "%", "_") string.gsub(pattern) { |x| [escape_character, x].join } @@ -87,7 +119,12 @@ module ActiveRecord # Accepts an array of conditions. The array has each value # sanitized and interpolated into the SQL statement. - # ["name='%s' and group_id='%s'", "foo'bar", 4] returns "name='foo''bar' and group_id='4'" + # + # sanitize_sql_array(["name=? and group_id=?", "foo'bar", 4]) + # # => "name='foo''bar' and group_id=4" + # + # sanitize_sql_array(["name='%s' and group_id='%s'", "foo'bar", 4]) + # # => "name='foo''bar' and group_id='4'" def sanitize_sql_array(ary) statement, *values = ary if values.first.is_a?(Hash) && statement =~ /:\w+/ @@ -101,7 +138,7 @@ module ActiveRecord end end - def replace_bind_variables(statement, values) #:nodoc: + def replace_bind_variables(statement, values) # :nodoc: raise_if_bind_arity_mismatch(statement, statement.count('?'), values.size) bound = values.dup c = connection @@ -110,7 +147,7 @@ module ActiveRecord end end - def replace_bind_variable(value, c = connection) #:nodoc: + def replace_bind_variable(value, c = connection) # :nodoc: if ActiveRecord::Relation === value value.to_sql else @@ -118,7 +155,7 @@ module ActiveRecord end end - def replace_named_bind_variables(statement, bind_vars) #:nodoc: + def replace_named_bind_variables(statement, bind_vars) # :nodoc: statement.gsub(/(:?):([a-zA-Z]\w*)/) do |match| if $1 == ':' # skip postgresql casts match # return the whole match @@ -130,7 +167,7 @@ module ActiveRecord end end - def quote_bound_value(value, c = connection) #:nodoc: + def quote_bound_value(value, c = connection) # :nodoc: if value.respond_to?(:map) && !value.acts_like?(:string) if value.respond_to?(:empty?) && value.empty? c.quote(nil) @@ -142,7 +179,7 @@ module ActiveRecord end end - def raise_if_bind_arity_mismatch(statement, expected, provided) #:nodoc: + def raise_if_bind_arity_mismatch(statement, expected, provided) # :nodoc: unless expected == provided raise PreparedStatementInvalid, "wrong number of bind variables (#{provided} for #{expected}) in: #{statement}" end diff --git a/activerecord/test/cases/associations/inverse_associations_test.rb b/activerecord/test/cases/associations/inverse_associations_test.rb index 423b8238b1..ece4dab539 100644 --- a/activerecord/test/cases/associations/inverse_associations_test.rb +++ b/activerecord/test/cases/associations/inverse_associations_test.rb @@ -13,6 +13,9 @@ require 'models/mixed_case_monkey' require 'models/admin' require 'models/admin/account' require 'models/admin/user' +require 'models/developer' +require 'models/company' +require 'models/project' class AutomaticInverseFindingTests < ActiveRecord::TestCase fixtures :ratings, :comments, :cars @@ -198,6 +201,16 @@ class InverseAssociationTests < ActiveRecord::TestCase belongs_to_ref = Sponsor.reflect_on_association(:sponsor_club) assert_nil belongs_to_ref.inverse_of end + + def test_this_inverse_stuff + firm = Firm.create!(name: 'Adequate Holdings') + Project.create!(name: 'Project 1', firm: firm) + Developer.create!(name: 'Gorbypuff', firm: firm) + + new_project = Project.last + assert Project.reflect_on_association(:lead_developer).inverse_of.present?, "Expected inverse of to be present" + assert new_project.lead_developer.present?, "Expected lead developer to be present on the project" + end end class InverseHasOneTests < ActiveRecord::TestCase diff --git a/activerecord/test/models/company.rb b/activerecord/test/models/company.rb index 67936e8e5d..a96b8ef0f2 100644 --- a/activerecord/test/models/company.rb +++ b/activerecord/test/models/company.rb @@ -86,6 +86,9 @@ class Firm < Company has_many :association_with_references, -> { references(:foo) }, :class_name => 'Client' + has_one :lead_developer, class_name: "Developer" + has_many :projects + def log @log ||= [] end diff --git a/activerecord/test/models/developer.rb b/activerecord/test/models/developer.rb index 7565e8f967..7c5941b1af 100644 --- a/activerecord/test/models/developer.rb +++ b/activerecord/test/models/developer.rb @@ -54,6 +54,9 @@ class Developer < ActiveRecord::Base has_many :ratings, through: :comments has_one :ship, dependent: :nullify + belongs_to :firm + has_many :contracted_projects, class_name: "Project" + scope :jamises, -> { where(:name => 'Jamis') } validates_inclusion_of :salary, :in => 50000..200000 diff --git a/activerecord/test/models/project.rb b/activerecord/test/models/project.rb index 7f42a4b1f8..5328330653 100644 --- a/activerecord/test/models/project.rb +++ b/activerecord/test/models/project.rb @@ -11,6 +11,8 @@ class Project < ActiveRecord::Base :before_remove => Proc.new {|o, r| o.developers_log << "before_removing#{r.id}"}, :after_remove => Proc.new {|o, r| o.developers_log << "after_removing#{r.id}"} has_and_belongs_to_many :well_payed_salary_groups, -> { group("developers.salary").having("SUM(salary) > 10000").select("SUM(salary) as salary") }, :class_name => "Developer" + belongs_to :firm + has_one :lead_developer, through: :firm, inverse_of: :contracted_projects attr_accessor :developers_log after_initialize :set_developers_log diff --git a/activerecord/test/schema/schema.rb b/activerecord/test/schema/schema.rb index 4b7272f10a..d334a2740e 100644 --- a/activerecord/test/schema/schema.rb +++ b/activerecord/test/schema/schema.rb @@ -252,6 +252,7 @@ ActiveRecord::Schema.define do t.string :name t.string :first_name t.integer :salary, default: 70000 + t.integer :firm_id if subsecond_precision_supported? t.datetime :created_at, precision: 6 t.datetime :updated_at, precision: 6 @@ -658,6 +659,7 @@ ActiveRecord::Schema.define do create_table :projects, force: true do |t| t.string :name t.string :type + t.integer :firm_id end create_table :randomly_named_table1, force: true do |t| |