aboutsummaryrefslogtreecommitdiffstats
path: root/activerecord/lib/active_record/relation
diff options
context:
space:
mode:
Diffstat (limited to 'activerecord/lib/active_record/relation')
-rw-r--r--activerecord/lib/active_record/relation/batches.rb33
-rw-r--r--activerecord/lib/active_record/relation/calculations.rb10
-rw-r--r--activerecord/lib/active_record/relation/delegation.rb2
-rw-r--r--activerecord/lib/active_record/relation/finder_methods.rb146
-rw-r--r--activerecord/lib/active_record/relation/merger.rb11
-rw-r--r--activerecord/lib/active_record/relation/predicate_builder.rb15
-rw-r--r--activerecord/lib/active_record/relation/query_methods.rb167
-rw-r--r--activerecord/lib/active_record/relation/spawn_methods.rb3
8 files changed, 296 insertions, 91 deletions
diff --git a/activerecord/lib/active_record/relation/batches.rb b/activerecord/lib/active_record/relation/batches.rb
index 49b01909c6..29fc150b3d 100644
--- a/activerecord/lib/active_record/relation/batches.rb
+++ b/activerecord/lib/active_record/relation/batches.rb
@@ -52,7 +52,9 @@ module ActiveRecord
records.each { |record| yield record }
end
else
- enum_for :find_each, options
+ enum_for :find_each, options do
+ options[:start] ? where(table[primary_key].gteq(options[:start])).size : size
+ end
end
end
@@ -64,6 +66,16 @@ module ActiveRecord
# group.each { |person| person.party_all_night! }
# end
#
+ # If you do not provide a block to #find_in_batches, it will return an Enumerator
+ # for chaining with other methods:
+ #
+ # Person.find_in_batches.with_index do |group, batch|
+ # puts "Processing group ##{batch}"
+ # group.each(&:recover_from_last_night!)
+ # end
+ #
+ # To be yielded each record one by one, use #find_each instead.
+ #
# ==== Options
# * <tt>:batch_size</tt> - Specifies the size of the batch. Default to 1000.
# * <tt>:start</tt> - Specifies the starting point for the batch processing.
@@ -88,30 +100,33 @@ module ActiveRecord
options.assert_valid_keys(:start, :batch_size)
relation = self
+ start = options[:start]
+ batch_size = options[:batch_size] || 1000
+
+ unless block_given?
+ return to_enum(:find_in_batches, options) do
+ total = start ? where(table[primary_key].gteq(start)).size : size
+ (total - 1).div(batch_size) + 1
+ end
+ end
if logger && (arel.orders.present? || arel.taken.present?)
logger.warn("Scoped order and limit are ignored, it's forced to be batch order and batch size")
end
- start = options.delete(:start)
- batch_size = options.delete(:batch_size) || 1000
-
relation = relation.reorder(batch_order).limit(batch_size)
records = start ? relation.where(table[primary_key].gteq(start)).to_a : relation.to_a
while records.any?
records_size = records.size
primary_key_offset = records.last.id
+ raise "Primary key not included in the custom select clause" unless primary_key_offset
yield records
break if records_size < batch_size
- if primary_key_offset
- records = relation.where(table[primary_key].gt(primary_key_offset)).to_a
- else
- raise "Primary key not included in the custom select clause"
- end
+ records = relation.where(table[primary_key].gt(primary_key_offset)).to_a
end
end
diff --git a/activerecord/lib/active_record/relation/calculations.rb b/activerecord/lib/active_record/relation/calculations.rb
index 45ffb99868..0b56430b34 100644
--- a/activerecord/lib/active_record/relation/calculations.rb
+++ b/activerecord/lib/active_record/relation/calculations.rb
@@ -188,7 +188,7 @@ module ActiveRecord
private
def has_include?(column_name)
- eager_loading? || (includes_values.present? && (column_name || references_eager_loaded_tables?))
+ eager_loading? || (includes_values.present? && ((column_name && column_name != :all) || references_eager_loaded_tables?))
end
def perform_calculation(operation, column_name, options = {})
@@ -231,15 +231,18 @@ module ActiveRecord
def execute_simple_calculation(operation, column_name, distinct) #:nodoc:
# Postgresql doesn't like ORDER BY when there are no GROUP BY
- relation = reorder(nil)
+ relation = unscope(:order)
column_alias = column_name
+ bind_values = nil
+
if operation == "count" && (relation.limit_value || relation.offset_value)
# Shortcut when limit is zero.
return 0 if relation.limit_value == 0
query_builder = build_count_subquery(relation, column_name, distinct)
+ bind_values = relation.bind_values
else
column = aggregate_column(column_name)
@@ -249,9 +252,10 @@ module ActiveRecord
relation.select_values = [select_value]
query_builder = relation.arel
+ bind_values = query_builder.bind_values + relation.bind_values
end
- result = @klass.connection.select_all(query_builder, nil, relation.bind_values)
+ result = @klass.connection.select_all(query_builder, nil, bind_values)
row = result.first
value = row && row.values.first
column = result.column_types.fetch(column_alias) do
diff --git a/activerecord/lib/active_record/relation/delegation.rb b/activerecord/lib/active_record/relation/delegation.rb
index 21beed332f..9c666dcd3b 100644
--- a/activerecord/lib/active_record/relation/delegation.rb
+++ b/activerecord/lib/active_record/relation/delegation.rb
@@ -40,7 +40,7 @@ module ActiveRecord
BLACKLISTED_ARRAY_METHODS = [
:compact!, :flatten!, :reject!, :reverse!, :rotate!, :map!,
:shuffle!, :slice!, :sort!, :sort_by!, :delete_if,
- :keep_if, :pop, :shift, :delete_at, :compact
+ :keep_if, :pop, :shift, :delete_at, :compact, :select!
].to_set # :nodoc:
delegate :to_xml, :to_yaml, :length, :collect, :map, :each, :all?, :include?, :to_ary, to: :to_a
diff --git a/activerecord/lib/active_record/relation/finder_methods.rb b/activerecord/lib/active_record/relation/finder_methods.rb
index 4984dbd277..db32ae12a8 100644
--- a/activerecord/lib/active_record/relation/finder_methods.rb
+++ b/activerecord/lib/active_record/relation/finder_methods.rb
@@ -1,3 +1,5 @@
+require 'active_support/deprecation'
+
module ActiveRecord
module FinderMethods
ONE_AS_ONE = '1 AS one'
@@ -127,9 +129,9 @@ module ActiveRecord
#
def first(limit = nil)
if limit
- find_first_with_limit(limit)
+ find_nth_with_limit(offset_index, limit)
else
- find_first
+ find_nth(0, offset_index)
end
end
@@ -172,6 +174,86 @@ module ActiveRecord
last or raise RecordNotFound
end
+ # Find the second record.
+ # If no order is defined it will order by primary key.
+ #
+ # Person.second # returns the second object fetched by SELECT * FROM people
+ # Person.offset(3).second # returns the second object from OFFSET 3 (which is OFFSET 4)
+ # Person.where(["user_name = :u", { u: user_name }]).second
+ def second
+ find_nth(1, offset_index)
+ end
+
+ # Same as +second+ but raises <tt>ActiveRecord::RecordNotFound</tt> if no record
+ # is found.
+ def second!
+ second or raise RecordNotFound
+ end
+
+ # Find the third record.
+ # If no order is defined it will order by primary key.
+ #
+ # Person.third # returns the third object fetched by SELECT * FROM people
+ # Person.offset(3).third # returns the third object from OFFSET 3 (which is OFFSET 5)
+ # Person.where(["user_name = :u", { u: user_name }]).third
+ def third
+ find_nth(2, offset_index)
+ end
+
+ # Same as +third+ but raises <tt>ActiveRecord::RecordNotFound</tt> if no record
+ # is found.
+ def third!
+ third or raise RecordNotFound
+ end
+
+ # Find the fourth record.
+ # If no order is defined it will order by primary key.
+ #
+ # Person.fourth # returns the fourth object fetched by SELECT * FROM people
+ # Person.offset(3).fourth # returns the fourth object from OFFSET 3 (which is OFFSET 6)
+ # Person.where(["user_name = :u", { u: user_name }]).fourth
+ def fourth
+ find_nth(3, offset_index)
+ end
+
+ # Same as +fourth+ but raises <tt>ActiveRecord::RecordNotFound</tt> if no record
+ # is found.
+ def fourth!
+ fourth or raise RecordNotFound
+ end
+
+ # Find the fifth record.
+ # If no order is defined it will order by primary key.
+ #
+ # Person.fifth # returns the fifth object fetched by SELECT * FROM people
+ # Person.offset(3).fifth # returns the fifth object from OFFSET 3 (which is OFFSET 7)
+ # Person.where(["user_name = :u", { u: user_name }]).fifth
+ def fifth
+ find_nth(4, offset_index)
+ end
+
+ # Same as +fifth+ but raises <tt>ActiveRecord::RecordNotFound</tt> if no record
+ # is found.
+ def fifth!
+ fifth or raise RecordNotFound
+ end
+
+ # Find the forty-second record. Also known as accessing "the reddit".
+ # If no order is defined it will order by primary key.
+ #
+ # Person.forty_two # returns the forty-second object fetched by SELECT * FROM people
+ # Person.offset(3).forty_two # returns the forty-second object from OFFSET 3 (which is OFFSET 44)
+ # Person.where(["user_name = :u", { u: user_name }]).forty_two
+ def forty_two
+ find_nth(41, offset_index)
+ end
+
+ # Same as +forty_two+ but raises <tt>ActiveRecord::RecordNotFound</tt> if no record
+ # is found.
+ def forty_two!
+ forty_two or raise RecordNotFound
+ end
+
# Returns +true+ if a record exists in the table that matches the +id+ or
# conditions given, or +false+ otherwise. The argument can take six forms:
#
@@ -200,7 +282,12 @@ module ActiveRecord
# Person.exists?(false)
# Person.exists?
def exists?(conditions = :none)
- conditions = conditions.id if Base === conditions
+ if Base === conditions
+ conditions = conditions.id
+ ActiveSupport::Deprecation.warn "You are passing an instance of ActiveRecord::Base to `exists?`." \
+ "Please pass the id of the object by calling `.id`"
+ end
+
return false if !conditions
relation = apply_join_dependency(self, construct_join_dependency)
@@ -212,7 +299,9 @@ module ActiveRecord
when Array, Hash
relation = relation.where(conditions)
else
- relation = relation.where(table[primary_key].eq(conditions)) if conditions != :none
+ unless conditions == :none
+ relation = where(primary_key => conditions)
+ end
end
connection.select_value(relation, "#{name} Exists", relation.bind_values) ? true : false
@@ -231,9 +320,9 @@ module ActiveRecord
conditions = " [#{conditions}]" if conditions
if Array(ids).size == 1
- error = "Couldn't find #{@klass.name} with #{primary_key}=#{ids}#{conditions}"
+ error = "Couldn't find #{@klass.name} with '#{primary_key}'=#{ids}#{conditions}"
else
- error = "Couldn't find all #{@klass.name.pluralize} with IDs "
+ error = "Couldn't find all #{@klass.name.pluralize} with '#{primary_key}': "
error << "(#{ids.join(", ")})#{conditions} (found #{result_size} results, but was looking for #{expected_size})"
end
@@ -242,6 +331,10 @@ module ActiveRecord
private
+ def offset_index
+ offset_value || 0
+ end
+
def find_with_associations
join_dependency = construct_join_dependency
@@ -255,7 +348,8 @@ module ActiveRecord
if ActiveRecord::NullRelation === relation
[]
else
- rows = connection.select_all(relation.arel, 'SQL', relation.bind_values.dup)
+ arel = relation.arel
+ rows = connection.select_all(arel, 'SQL', arel.bind_values + relation.bind_values)
join_dependency.instantiate(rows, aliases)
end
end
@@ -267,7 +361,15 @@ module ActiveRecord
end
def construct_relation_for_association_calculations
- apply_join_dependency(self, construct_join_dependency(arel.froms.first))
+ from = arel.froms.first
+ if Arel::Table === from
+ apply_join_dependency(self, construct_join_dependency)
+ else
+ # FIXME: as far as I can tell, `from` will always be an Arel::Table.
+ # There are no tests that test this branch, but presumably it's
+ # possible for `from` to be a list?
+ apply_join_dependency(self, construct_join_dependency(from))
+ end
end
def apply_join_dependency(relation, join_dependency)
@@ -321,7 +423,11 @@ module ActiveRecord
end
def find_one(id)
- id = id.id if ActiveRecord::Base === id
+ if ActiveRecord::Base === id
+ id = id.id
+ ActiveSupport::Deprecation.warn "You are passing an instance of ActiveRecord::Base to `find`." \
+ "Please pass the id of the object by calling `.id`"
+ end
column = columns_hash[primary_key]
substitute = connection.substitute_at(column, bind_values.length)
@@ -364,20 +470,24 @@ module ActiveRecord
end
end
- def find_first
+ def find_nth(index, offset)
if loaded?
- @records.first
+ @records[index]
else
- @first ||= find_first_with_limit(1).first
+ offset += index
+ @offsets[offset] ||= find_nth_with_limit(offset, 1).first
end
end
- def find_first_with_limit(limit)
- if order_values.empty? && primary_key
- order(arel_table[primary_key].asc).limit(limit).to_a
- else
- limit(limit).to_a
- end
+ def find_nth_with_limit(offset, limit)
+ relation = if order_values.empty? && primary_key
+ order(arel_table[primary_key].asc)
+ else
+ self
+ end
+
+ relation = relation.offset(offset) unless offset.zero?
+ relation.limit(limit).to_a
end
def find_last
diff --git a/activerecord/lib/active_record/relation/merger.rb b/activerecord/lib/active_record/relation/merger.rb
index 182b9ed89c..fcb28a18f6 100644
--- a/activerecord/lib/active_record/relation/merger.rb
+++ b/activerecord/lib/active_record/relation/merger.rb
@@ -30,6 +30,8 @@ module ActiveRecord
else
other.joins!(*v)
end
+ elsif k == :select
+ other._select!(v)
else
other.send("#{k}!", v)
end
@@ -62,7 +64,13 @@ module ActiveRecord
# expensive), most of the time the value is going to be `nil` or `.blank?`, the only catch is that
# `false.blank?` returns `true`, so there needs to be an extra check so that explicit `false` values
# don't fall through the cracks.
- relation.send("#{name}!", *value) unless value.nil? || (value.blank? && false != value)
+ unless value.nil? || (value.blank? && false != value)
+ if name == :select
+ relation._select!(*value)
+ else
+ relation.send("#{name}!", *value)
+ end
+ end
end
merge_multi_values
@@ -139,7 +147,6 @@ module ActiveRecord
def merge_single_values
relation.from_value = values[:from] unless relation.from_value
relation.lock_value = values[:lock] unless relation.lock_value
- relation.reverse_order_value = values[:reverse_order]
unless values[:create_with].blank?
relation.create_with_value = (relation.create_with_value || {}).merge(values[:create_with])
diff --git a/activerecord/lib/active_record/relation/predicate_builder.rb b/activerecord/lib/active_record/relation/predicate_builder.rb
index 1252af7635..d40f276968 100644
--- a/activerecord/lib/active_record/relation/predicate_builder.rb
+++ b/activerecord/lib/active_record/relation/predicate_builder.rb
@@ -113,13 +113,14 @@ module ActiveRecord
register_handler(Relation, RelationHandler.new)
register_handler(Array, ArrayHandler.new)
- private
- def self.build(attribute, value)
- handler_for(value).call(attribute, value)
- end
+ def self.build(attribute, value)
+ handler_for(value).call(attribute, value)
+ end
+ private_class_method :build
- def self.handler_for(object)
- @handlers.detect { |klass, _| klass === object }.last
- end
+ def self.handler_for(object)
+ @handlers.detect { |klass, _| klass === object }.last
+ end
+ private_class_method :handler_for
end
end
diff --git a/activerecord/lib/active_record/relation/query_methods.rb b/activerecord/lib/active_record/relation/query_methods.rb
index 979216bee7..416f2305d2 100644
--- a/activerecord/lib/active_record/relation/query_methods.rb
+++ b/activerecord/lib/active_record/relation/query_methods.rb
@@ -49,6 +49,8 @@ module ActiveRecord
Arel::Nodes::Not.new(rel)
end
end
+
+ @scope.references!(PredicateBuilder.references(opts)) if Hash === opts
@scope.where_values += where_value
@scope
end
@@ -62,6 +64,7 @@ module ActiveRecord
#
def #{name}_values=(values) # def select_values=(values)
raise ImmutableRelation if @loaded # raise ImmutableRelation if @loaded
+ check_cached_relation
@values[:#{name}] = values # @values[:select] = values
end # end
CODE
@@ -79,11 +82,22 @@ module ActiveRecord
class_eval <<-CODE, __FILE__, __LINE__ + 1
def #{name}_value=(value) # def readonly_value=(value)
raise ImmutableRelation if @loaded # raise ImmutableRelation if @loaded
+ check_cached_relation
@values[:#{name}] = value # @values[:readonly] = value
end # end
CODE
end
+ def check_cached_relation # :nodoc:
+ if defined?(@arel) && @arel
+ @arel = nil
+ ActiveSupport::Deprecation.warn <<-WARNING
+Modifying already cached Relation. The cache will be reset.
+Use a cloned Relation to prevent this warning.
+WARNING
+ end
+ end
+
def create_with_value # :nodoc:
@values[:create_with] || {}
end
@@ -120,6 +134,9 @@ module ActiveRecord
# Will throw an error, but this will work:
#
# User.includes(:posts).where('posts.name = ?', 'example').references(:posts)
+ #
+ # Note that +includes+ works with association names while +references+ needs
+ # the actual table name.
def includes(*args)
check_if_method_has_arguments!(:includes, args)
spawn.includes!(*args)
@@ -163,24 +180,26 @@ module ActiveRecord
self
end
- # Used to indicate that an association is referenced by an SQL string, and should
- # therefore be JOINed in any query rather than loaded separately.
+ # Use to indicate that the given +table_names+ are referenced by an SQL string,
+ # and should therefore be JOINed in any query rather than loaded separately.
+ # This method only works in conjunction with +includes+.
+ # See #includes for more details.
#
# User.includes(:posts).where("posts.name = 'foo'")
# # => Doesn't JOIN the posts table, resulting in an error.
#
# User.includes(:posts).where("posts.name = 'foo'").references(:posts)
# # => Query now knows the string references posts, so adds a JOIN
- def references(*args)
- check_if_method_has_arguments!(:references, args)
- spawn.references!(*args)
+ def references(*table_names)
+ check_if_method_has_arguments!(:references, table_names)
+ spawn.references!(*table_names)
end
- def references!(*args) # :nodoc:
- args.flatten!
- args.map!(&:to_s)
+ def references!(*table_names) # :nodoc:
+ table_names.flatten!
+ table_names.map!(&:to_s)
- self.references_values |= args
+ self.references_values |= table_names
self
end
@@ -197,7 +216,7 @@ module ActiveRecord
# fields are retrieved:
#
# Model.select(:field)
- # # => [#<Model field:value>]
+ # # => [#<Model id: nil, field: "value">]
#
# Although in the above example it looks as though this method returns an
# array, it actually returns a relation object and can have other query
@@ -206,12 +225,12 @@ module ActiveRecord
# The argument to the method can also be an array of fields.
#
# Model.select(:field, :other_field, :and_one_more)
- # # => [#<Model field: "value", other_field: "value", and_one_more: "value">]
+ # # => [#<Model id: nil, field: "value", other_field: "value", and_one_more: "value">]
#
# You can also use one or more strings, which will be used unchanged as SELECT fields.
#
# Model.select('field AS field_one', 'other_field AS field_two')
- # # => [#<Model field: "value", other_field: "value">]
+ # # => [#<Model id: nil, field: "value", other_field: "value">]
#
# If an alias was specified, it will be accessible from the resulting objects:
#
@@ -219,7 +238,7 @@ module ActiveRecord
# # => "value"
#
# Accessing attributes of an object that do not have fields retrieved by a select
- # will throw <tt>ActiveModel::MissingAttributeError</tt>:
+ # except +id+ will throw <tt>ActiveModel::MissingAttributeError</tt>:
#
# Model.select(:field).first.other_field
# # => ActiveModel::MissingAttributeError: missing attribute: other_field
@@ -228,13 +247,15 @@ module ActiveRecord
to_a.select { |*block_args| yield(*block_args) }
else
raise ArgumentError, 'Call this with at least one field' if fields.empty?
- spawn.select!(*fields)
+ spawn._select!(*fields)
end
end
- def select!(*fields) # :nodoc:
+ def _select!(*fields) # :nodoc:
fields.flatten!
-
+ fields.map! do |field|
+ klass.attribute_alias?(field) ? klass.attribute_alias(field) : field
+ end
self.select_values += fields
self
end
@@ -254,6 +275,10 @@ module ActiveRecord
#
# User.group('name AS grouped_name, age')
# => [#<User id: 3, name: "Foo", age: 21, ...>, #<User id: 2, name: "Oscar", age: 21, ...>, #<User id: 5, name: "Foo", age: 23, ...>]
+ #
+ # Passing in an array of attributes to group by is also supported.
+ # User.select([:id, :first_name]).group(:id, :first_name).first(3)
+ # => [#<User id: 1, first_name: "Bill">, #<User id: 2, first_name: "Earl">, #<User id: 3, first_name: "Beto">]
def group(*args)
check_if_method_has_arguments!(:group, args)
spawn.group!(*args)
@@ -268,15 +293,6 @@ module ActiveRecord
# Allows to specify an order attribute:
#
- # User.order('name')
- # => SELECT "users".* FROM "users" ORDER BY name
- #
- # User.order('name DESC')
- # => SELECT "users".* FROM "users" ORDER BY name DESC
- #
- # User.order('name DESC, email')
- # => SELECT "users".* FROM "users" ORDER BY name DESC, email
- #
# User.order(:name)
# => SELECT "users".* FROM "users" ORDER BY "users"."name" ASC
#
@@ -285,6 +301,15 @@ module ActiveRecord
#
# User.order(:name, email: :desc)
# => SELECT "users".* FROM "users" ORDER BY "users"."name" ASC, "users"."email" DESC
+ #
+ # User.order('name')
+ # => SELECT "users".* FROM "users" ORDER BY name
+ #
+ # User.order('name DESC')
+ # => SELECT "users".* FROM "users" ORDER BY name DESC
+ #
+ # User.order('name DESC, email')
+ # => SELECT "users".* FROM "users" ORDER BY name DESC, email
def order(*args)
check_if_method_has_arguments!(:order, args)
spawn.order!(*args)
@@ -812,22 +837,25 @@ module ActiveRecord
end
def reverse_order! # :nodoc:
- self.reverse_order_value = !reverse_order_value
+ orders = order_values.uniq
+ orders.reject!(&:blank?)
+ self.order_values = reverse_sql_order(orders)
self
end
# Returns the Arel object associated with the relation.
- def arel
+ def arel # :nodoc:
@arel ||= build_arel
end
- # Like #arel, but ignores the default scope of the model.
+ private
+
def build_arel
arel = Arel::SelectManager.new(table.engine, table)
build_joins(arel, joins_values.flatten) unless joins_values.empty?
- collapse_wheres(arel, (where_values - ['']).uniq)
+ collapse_wheres(arel, (where_values - [''])) #TODO: Add uniq with real value comparison / ignore uniqs that have binds
arel.having(*having_values.uniq.reject(&:blank?)) unless having_values.empty?
@@ -844,11 +872,18 @@ module ActiveRecord
arel.from(build_from) if from_value
arel.lock(lock_value) if lock_value
+ # Reorder bind indexes if joins produced bind values
+ if arel.bind_values.any?
+ bvs = arel.bind_values + bind_values
+ arel.ast.grep(Arel::Nodes::BindParam).each_with_index do |bp, i|
+ column = bvs[i].first
+ bp.replace connection.substitute_at(column, i)
+ end
+ end
+
arel
end
- private
-
def symbol_unscoping(scope)
if !VALID_UNSCOPING_VALUES.include?(scope)
raise ArgumentError, "Called unscope() with invalid unscoping argument ':#{scope}'. Valid arguments are :#{VALID_UNSCOPING_VALUES.to_a.join(", :")}."
@@ -859,8 +894,9 @@ module ActiveRecord
case scope
when :order
- self.reverse_order_value = false
result = []
+ when :where
+ self.bind_values = []
else
result = [] unless single_val_method
end
@@ -876,8 +912,6 @@ module ActiveRecord
when Arel::Nodes::In, Arel::Nodes::NotIn, Arel::Nodes::Equality, Arel::Nodes::NotEqual
subrelation = (rel.left.kind_of?(Arel::Attributes::Attribute) ? rel.left : rel.right)
subrelation.name == target_value
- else
- raise "unscope(where: #{target_value.inspect}) failed: unscoping #{rel.class} is unimplemented."
end
end
@@ -913,18 +947,16 @@ module ActiveRecord
def build_where(opts, other = [])
case opts
when String, Array
- #TODO: Remove duplication with: /activerecord/lib/active_record/sanitization.rb:113
- values = Hash === other.first ? other.first.values : other
-
- values.grep(ActiveRecord::Relation) do |rel|
- self.bind_values += rel.bind_values
- end
-
[@klass.send(:sanitize_sql, other.empty? ? opts : ([opts] + other))]
when Hash
opts = PredicateBuilder.resolve_column_aliases(klass, opts)
attributes = @klass.send(:expand_hash_conditions_for_aggregates, opts)
+ bv_len = bind_values.length
+ tmp_opts, bind_values = create_binds(opts, bv_len)
+ self.bind_values += bind_values
+
+ attributes = @klass.send(:expand_hash_conditions_for_aggregates, tmp_opts)
attributes.values.grep(ActiveRecord::Relation) do |rel|
self.bind_values += rel.bind_values
end
@@ -935,6 +967,29 @@ module ActiveRecord
end
end
+ def create_binds(opts, idx)
+ bindable, non_binds = opts.partition do |column, value|
+ case value
+ when String, Integer, ActiveRecord::StatementCache::Substitute
+ @klass.columns_hash.include? column.to_s
+ else
+ false
+ end
+ end
+
+ new_opts = {}
+ binds = []
+
+ bindable.each_with_index do |(column,value), index|
+ binds.push [@klass.columns_hash[column.to_s], value]
+ new_opts[column] = connection.substitute_at(column, index + idx)
+ end
+
+ non_binds.each { |column,value| new_opts[column] = value }
+
+ [new_opts, binds]
+ end
+
def build_from
opts, name = from_value
case opts
@@ -976,9 +1031,12 @@ module ActiveRecord
join_list
)
- joins = join_dependency.join_constraints stashed_association_joins
+ join_infos = join_dependency.join_constraints stashed_association_joins
- joins.each { |join| manager.from(join) }
+ join_infos.each do |info|
+ info.joins.each { |join| manager.from(join) }
+ manager.bind_values.concat info.binds
+ end
manager.join_sources.concat(join_list)
@@ -987,9 +1045,10 @@ module ActiveRecord
def build_select(arel, selects)
if !selects.empty?
- arel.project(*selects)
- elsif from_value
- arel.project(Arel.star)
+ expanded_select = selects.map do |field|
+ columns_hash.key?(field.to_s) ? arel_table[field] : field
+ end
+ arel.project(*expanded_select)
else
arel.project(@klass.arel_table[Arel.star])
end
@@ -1020,15 +1079,19 @@ module ActiveRecord
def build_order(arel)
orders = order_values.uniq
orders.reject!(&:blank?)
- orders = reverse_sql_order(orders) if reverse_order_value
arel.order(*orders) unless orders.empty?
end
+ VALID_DIRECTIONS = [:asc, :desc, :ASC, :DESC,
+ 'asc', 'desc', 'ASC', 'DESC'] # :nodoc:
+
def validate_order_args(args)
- args.grep(Hash) do |h|
- unless (h.values - [:asc, :desc]).empty?
- raise ArgumentError, 'Direction should be :asc or :desc'
+ args.each do |arg|
+ next unless arg.is_a?(Hash)
+ arg.each do |_key, value|
+ raise ArgumentError, "Direction \"#{value}\" is invalid. Valid " \
+ "directions are: #{VALID_DIRECTIONS.inspect}" unless VALID_DIRECTIONS.include?(value)
end
end
end
@@ -1045,10 +1108,12 @@ module ActiveRecord
order_args.map! do |arg|
case arg
when Symbol
+ arg = klass.attribute_alias(arg) if klass.attribute_alias?(arg)
table[arg].asc
when Hash
arg.map { |field, dir|
- table[field].send(dir)
+ field = klass.attribute_alias(field) if klass.attribute_alias?(field)
+ table[field].send(dir.downcase)
}
else
arg
diff --git a/activerecord/lib/active_record/relation/spawn_methods.rb b/activerecord/lib/active_record/relation/spawn_methods.rb
index 2552cbd234..57d66bce4b 100644
--- a/activerecord/lib/active_record/relation/spawn_methods.rb
+++ b/activerecord/lib/active_record/relation/spawn_methods.rb
@@ -58,6 +58,9 @@ module ActiveRecord
# Post.order('id asc').only(:where) # discards the order condition
# Post.order('id asc').only(:where, :order) # uses the specified order
def only(*onlies)
+ if onlies.any? { |o| o == :where }
+ onlies << :bind
+ end
relation_with values.slice(*onlies)
end