Use finder options as relation method names to provide more familiar

naming. Use bang methods convention in methods that alter the
relation.

activerecord/lib/active_record/associations.rb

@@ -1681,15 +1681,15 @@ def construct_finder_arel_with_included_associations(options, join_dependency)
           for association in join_dependency.join_associations
             relation = association.join_relation(relation)
           end
-          relation.join(construct_join(options[:joins], scope))
 
-          relation.where(construct_conditions(options[:conditions], scope))
-          relation.where(construct_arel_limited_ids_condition(options, join_dependency)) if !using_limitable_reflections?(join_dependency.reflections) && ((scope && scope[:limit]) || options[:limit])
+          relation.joins!(construct_join(options[:joins], scope)).
+            select!(column_aliases(join_dependency)).
+            group!(construct_group(options[:group], options[:having], scope)).
+            order!(construct_order(options[:order], scope)).
+            conditions!(construct_conditions(options[:conditions], scope))
 
-          relation.project(column_aliases(join_dependency))
-          relation.group(construct_group(options[:group], options[:having], scope))
-          relation.order(construct_order(options[:order], scope))
-          relation.take(construct_limit(options[:limit], scope)) if using_limitable_reflections?(join_dependency.reflections)
+          relation.conditions!(construct_arel_limited_ids_condition(options, join_dependency)) if !using_limitable_reflections?(join_dependency.reflections) && ((scope && scope[:limit]) || options[:limit])
+          relation.limit!(construct_limit(options[:limit], scope)) if using_limitable_reflections?(join_dependency.reflections)
 
           relation
         end
@@ -1724,15 +1724,15 @@ def construct_finder_sql_for_association_limiting(options, join_dependency)
           for association in join_dependency.join_associations
             relation = association.join_relation(relation)
           end
-          relation.join(construct_join(options[:joins], scope))
 
-          relation.where(construct_conditions(options[:conditions], scope))
-          relation.project(connection.distinct("#{connection.quote_table_name table_name}.#{primary_key}", construct_order(options[:order], scope(:find)).join(",")))
+          relation.joins!(construct_join(options[:joins], scope)).
+            conditions!(construct_conditions(options[:conditions], scope)).
+            group!(construct_group(options[:group], options[:having], scope)).
+            order!(construct_order(options[:order], scope)).
+            limit!(construct_limit(options[:limit], scope)).
+            offset!(construct_limit(options[:offset], scope))
 
-          relation.group(construct_group(options[:group], options[:having], scope))
-          relation.order(construct_order(options[:order], scope))
-          relation.take(construct_limit(options[:limit], scope))
-          relation.skip(construct_limit(options[:offset], scope))
+          relation.select!(connection.distinct("#{connection.quote_table_name table_name}.#{primary_key}", construct_order(options[:order], scope(:find)).join(",")))
 
           sanitize_sql(relation.to_sql)
         end
@@ -2222,10 +2222,10 @@ def join_type
 
             def join_relation(joining_relation, join = nil)
               if relation.is_a?(Array)
-                joining_relation.join(relation.first, join_type).on(association_join.first)
-                joining_relation.join(relation.last, join_type).on(association_join.last)
+                joining_relation.joins!(relation.first, join_type).on!(association_join.first)
+                joining_relation.joins!(relation.last, join_type).on!(association_join.last)
               else
-                joining_relation.join(relation, join_type).on(association_join)
+                joining_relation.joins!(relation, join_type).on!(association_join)
               end
               joining_relation
             end

activerecord/lib/active_record/base.rb

@@ -866,18 +866,18 @@ def destroy(id)
       def update_all(updates, conditions = nil, options = {})
         scope = scope(:find)
 
-        relation = arel_table.relation
+        relation = arel_table
 
         if conditions = construct_conditions(conditions, scope)
-          relation = relation.where(Arel::SqlLiteral.new(conditions))
+          relation.conditions!(Arel::SqlLiteral.new(conditions))
         end
 
         if options.has_key?(:limit) || (scope && scope[:limit])
           # Only take order from scope if limit is also provided by scope, this
           # is useful for updating a has_many association with a limit.
-          relation = relation.order(construct_order(options[:order], scope)).take(construct_limit(options[:limit], scope))
+          relation.order!(construct_order(options[:order], scope)).limit!(construct_limit(options[:limit], scope))
         else
-          relation = relation.order(construct_order(options[:order], nil))
+          relation.order!(options[:order])
         end
 
         relation.update(sanitize_sql_for_assignment(updates))
@@ -932,7 +932,7 @@ def destroy_all(conditions = nil)
       # associations or call your <tt>before_*</tt> or +after_destroy+ callbacks, use the +destroy_all+ method instead.
       def delete_all(conditions = nil)
         if conditions
-          arel_table.where(Arel::SqlLiteral.new(construct_conditions(conditions, scope(:find)))).delete
+          arel_table.conditions!(Arel::SqlLiteral.new(construct_conditions(conditions, scope(:find)))).delete
         else
           arel_table.delete
         end
@@ -1719,15 +1719,14 @@ def default_select(qualified)
 
         def construct_finder_arel(options = {}, scope = scope(:find))
           # TODO add lock to Arel
-          arel_table(options[:from]).
-            join(construct_join(options[:joins], scope)).
-            where(construct_conditions(options[:conditions], scope)).
-            project(options[:select] || (scope && scope[:select]) || default_select(options[:joins] || (scope && scope[:joins]))).
-            group(construct_group(options[:group], options[:having], scope)).
-            order(construct_order(options[:order], scope)).
-            take(construct_limit(options[:limit], scope)).
-            skip(construct_offset(options[:offset], scope)
-          )
+          relation = arel_table(options[:from]).
+            joins!(construct_join(options[:joins], scope)).
+            conditions!(construct_conditions(options[:conditions], scope)).
+            select!(options[:select] || (scope && scope[:select]) || default_select(options[:joins] || (scope && scope[:joins]))).
+            group!(construct_group(options[:group], options[:having], scope)).
+            order!(construct_order(options[:order], scope)).
+            limit!(construct_limit(options[:limit], scope)).
+            offset!(construct_offset(options[:offset], scope))
         end
 
         def construct_finder_sql(options, scope = scope(:find))
@@ -2570,7 +2569,7 @@ def delete
       # be made (since they can't be persisted).
       def destroy
         unless new_record?
-          arel_table(true).where(arel_table[self.class.primary_key].eq(id)).delete
+          arel_table(true).conditions!(arel_table[self.class.primary_key].eq(id)).delete
         end
 
         @destroyed = true
@@ -2865,7 +2864,7 @@ def create_or_update
       def update(attribute_names = @attributes.keys)
         attributes_with_values = arel_attributes_values(false, false, attribute_names)
         return 0 if attributes_with_values.empty?
-        arel_table(true).where(arel_table[self.class.primary_key].eq(id)).update(attributes_with_values)
+        arel_table(true).conditions!(arel_table[self.class.primary_key].eq(id)).update(attributes_with_values)
       end
 
       # Creates a record with values matching those of the instance attributes

activerecord/lib/active_record/calculations.rb

@@ -146,12 +146,12 @@ def calculate(operation, column_name, options = {})
             join_dependency = ActiveRecord::Associations::ClassMethods::JoinDependency.new(self, merged_includes, construct_join(options[:joins], scope))
             construct_finder_arel_with_included_associations(options, join_dependency)
           else
-            arel_table(options[:from]).
-              join(construct_join(options[:joins], scope)).
-              where(construct_conditions(options[:conditions], scope)).
-              order(options[:order]).
-              take(options[:limit]).
-              skip(options[:offset])
+            relation = arel_table(options[:from]).
+              joins!(construct_join(options[:joins], scope)).
+              conditions!(construct_conditions(options[:conditions], scope)).
+              order!(options[:order]).
+              limit!(options[:limit]).
+              offset!(options[:offset])
           end
           if options[:group]
             return execute_grouped_calculation(operation, column_name, options, relation)
@@ -171,7 +171,7 @@ def execute_simple_calculation(operation, column_name, options, relation) #:nodo
                                (column_name == :all ? "*" : column_name.to_s))
         end
 
-        relation.project(operation == 'count' ? column.count(options[:distinct]) : column.send(operation))
+        relation.select!(operation == 'count' ? column.count(options[:distinct]) : column.send(operation))
 
         type_cast_calculated_value(connection.select_value(relation.to_sql), column_for(column_name), operation)
       end
@@ -194,8 +194,8 @@ def execute_grouped_calculation(operation, column_name, options, relation) #:nod
 
         options[:select] <<  ", #{group_field} AS #{group_alias}"
 
-        relation.project(options[:select])
-        relation.group(construct_group(options[:group], options[:having], nil))
+        relation.select!(options[:select])
+        relation.group!(construct_group(options[:group], options[:having], nil))
 
         calculated_data = connection.select_all(relation.to_sql)
 

activerecord/lib/active_record/relation.rb

@@ -1,7 +1,7 @@
 module ActiveRecord
   class Relation
     delegate :delete, :to_sql, :to => :relation
-    CLAUSES_METHODS = ["project", "group", "order", "take", "skip", "on"].freeze
+    CLAUSES_METHODS = ["project", "where", "group", "order", "take", "skip", "on"].freeze
     attr_reader :relation, :klass
 
     def initialize(klass, table = nil)
@@ -24,25 +24,41 @@ def first
 
     for clause in CLAUSES_METHODS
       class_eval %{
-        def #{clause}(_#{clause})
+        def #{clause}!(_#{clause})
           @relation = @relation.#{clause}(_#{clause}) if _#{clause}
           self
         end
       }
     end
 
-    def join(joins, join_type = nil)
-      if !joins.blank?
-        if [String, Hash, Array, Symbol].include?(joins.class)
-          @relation = @relation.join(@klass.send(:construct_join, joins, nil))
+
+    def select!(selection)
+      @relation = @relation.project(selection) if selection
+      self
+    end
+
+    def limit!(limit)
+      @relation = @relation.take(limit) if limit
+      self
+    end
+
+    def offset!(offset)
+      @relation = @relation.skip(offset) if offset
+      self
+    end
+
+    def joins!(join, join_type = nil)
+      if !join.blank?
+        if [String, Hash, Array, Symbol].include?(join.class)
+          @relation = @relation.join(@klass.send(:construct_join, join, nil))
         else
-          @relation = @relation.join(joins, join_type)
+          @relation = @relation.join(join, join_type)
         end
       end
       self
     end
 
-    def where(conditions)
+    def conditions!(conditions)
       if !conditions.blank?
         conditions = @klass.send(:merge_conditions, conditions) if [String, Hash, Array].include?(conditions.class)
         @relation = @relation.where(conditions)

activerecord/test/cases/associations/eager_test.rb

@@ -301,13 +301,13 @@ def test_eager_load_has_many_with_string_keys
     subscriber =Subscriber.find(subscribers(:second).id, :include => :subscriptions)
     assert_equal subscriptions, subscriber.subscriptions.sort_by(&:id)
   end
-  
+
   def test_eager_load_has_many_through_with_string_keys
     books = books(:awdr, :rfr)
     subscriber = Subscriber.find(subscribers(:second).id, :include => :books)
     assert_equal books, subscriber.books.sort_by(&:id)
   end
-  
+
   def test_eager_load_belongs_to_with_string_keys
     subscriber = subscribers(:second)
     subscription = Subscription.find(subscriptions(:webster_awdr).id, :include => :subscriber)
@@ -434,7 +434,7 @@ def test_eager_count_performed_on_a_has_many_association_with_multi_table_condit
     author_posts_without_comments = author.posts.select { |post| post.comments.blank? }
     assert_equal author_posts_without_comments.size, author.posts.count(:all, :include => :comments, :conditions => 'comments.id is null')
   end
-  
+
   def test_eager_count_performed_on_a_has_many_through_association_with_multi_table_conditional
     person = people(:michael)
     person_posts_without_comments = person.posts.select { |post| post.comments.blank? }
@@ -823,7 +823,7 @@ def test_include_has_many_using_primary_key
       assert_equal expected, firm.clients_using_primary_key
     end
   end
-  
+
   def test_preload_has_one_using_primary_key
     expected = Firm.find(:first).account_using_primary_key
     firm = Firm.find :first, :include => :account_using_primary_key
@@ -839,5 +839,5 @@ def test_include_has_one_using_primary_key
       assert_equal expected, firm.account_using_primary_key
     end
   end
-  
+
 end

activerecord/test/cases/base_test.rb

@@ -1893,7 +1893,7 @@ def test_last
   end
 
   def test_all_with_conditions
-    assert_equal Developer.find(:all, :order => 'id desc'), Developer.all.order('id desc').to_a
+    assert_equal Developer.find(:all, :order => 'id desc'), Developer.all.order!('id desc').to_a
   end
 
   def test_find_ordered_last

activerecord/test/cases/relations_test.rb

@@ -11,49 +11,47 @@ class RealtionTest < ActiveRecord::TestCase
   fixtures :authors, :topics, :entrants, :developers, :companies, :developers_projects, :accounts, :categories, :categorizations, :posts
 
   def test_finding_with_conditions
-    authors = Author.all.where("name = 'David'")
-
-    assert_equal Author.find(:all, :conditions => "name = 'David'"), authors.to_a
+    assert_equal Author.find(:all, :conditions => "name = 'David'"), Author.all.conditions!("name = 'David'").to_a
   end
 
   def test_finding_with_order
-    topics = Topic.all.order('id')
+    topics = Topic.all.order!('id')
     assert_equal 4, topics.size
     assert_equal topics(:first).title, topics.first.title
   end
 
   def test_finding_with_order_and_take
-    entrants = Entrant.all.order("id ASC").take(2).to_a
+    entrants = Entrant.all.order!("id ASC").limit!(2).to_a
 
     assert_equal(2, entrants.size)
     assert_equal(entrants(:first).name, entrants.first.name)
   end
 
   def test_finding_with_order_limit_and_offset
-    entrants = Entrant.all.order("id ASC").take(2).skip(1)
+    entrants = Entrant.all.order!("id ASC").limit!(2).offset!(1)
 
     assert_equal(2, entrants.size)
     assert_equal(entrants(:second).name, entrants.first.name)
 
-    entrants = Entrant.all.order("id ASC").take(2).skip(2)
+    entrants = Entrant.all.order!("id ASC").limit!(2).offset!(2)
     assert_equal(1, entrants.size)
     assert_equal(entrants(:third).name, entrants.first.name)
   end
 
   def test_finding_with_group
-    developers = Developer.all.group("salary").project("salary").to_a
+    developers = Developer.all.group!("salary").select!("salary").to_a
     assert_equal 4, developers.size
     assert_equal 4, developers.map(&:salary).uniq.size
   end
 
   def test_finding_with_hash_conditions_on_joined_table
-    firms = DependentFirm.all.join(:account).where({:name => 'RailsCore', :accounts => { :credit_limit => 55..60 }}).to_a
+    firms = DependentFirm.all.joins!(:account).conditions!({:name => 'RailsCore', :accounts => { :credit_limit => 55..60 }}).to_a
     assert_equal 1, firms.size
     assert_equal companies(:rails_core), firms.first
   end
 
   def test_find_all_with_join
-    developers_on_project_one = Developer.all.join('LEFT JOIN developers_projects ON developers.id = developers_projects.developer_id').where('project_id=1').to_a
+    developers_on_project_one = Developer.all.joins!('LEFT JOIN developers_projects ON developers.id = developers_projects.developer_id').conditions!('project_id=1').to_a
 
     assert_equal 3, developers_on_project_one.length
     developer_names = developers_on_project_one.map { |d| d.name }
@@ -62,11 +60,11 @@ def test_find_all_with_join
   end
 
   def test_find_on_hash_conditions
-    assert_equal Topic.find(:all, :conditions => {:approved => false}), Topic.all.where({ :approved => false }).to_a
+    assert_equal Topic.find(:all, :conditions => {:approved => false}), Topic.all.conditions!({ :approved => false }).to_a
   end
 
   def test_joins_with_string_array
-    person_with_reader_and_post = Post.all.join([
+    person_with_reader_and_post = Post.all.joins!([
         "INNER JOIN categorizations ON categorizations.post_id = posts.id",
         "INNER JOIN categories ON categories.id = categorizations.category_id AND categories.type = 'SpecialCategory'"
       ]