back out from r12715 to r12720: #connection replacing

These revisions have performance regression on Rails 3.2.16.

git-svn-id: http://svn.redmine.org/redmine/trunk@12735 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/issue.rb

@@ -1361,7 +1361,7 @@ class Issue < ActiveRecord::Base
           end
           done = p.leaves.joins(:status).
             sum("COALESCE(CASE WHEN estimated_hours > 0 THEN estimated_hours ELSE NULL END, #{average}) " +
-                "* (CASE WHEN is_closed = #{ActiveRecord::Base.connection.quoted_true} THEN 100 ELSE COALESCE(done_ratio, 0) END)").to_f
+                "* (CASE WHEN is_closed = #{connection.quoted_true} THEN 100 ELSE COALESCE(done_ratio, 0) END)").to_f
           progress = done / (average * leaves_count)
           p.done_ratio = progress.round
           p.done_ratio = 100 if p.done_ratio > 100

app/models/issue_custom_field.rb

@@ -32,7 +32,7 @@ class IssueCustomField < CustomField
     sql = super
     id_column ||= id
     tracker_condition = "#{Issue.table_name}.tracker_id IN (SELECT tracker_id FROM #{table_name_prefix}custom_fields_trackers#{table_name_suffix} WHERE custom_field_id = #{id_column})"
-    project_condition = "EXISTS (SELECT 1 FROM #{CustomField.table_name} ifa WHERE ifa.is_for_all = #{ActiveRecord::Base.connection.quoted_true} AND ifa.id = #{id_column})" + 
+    project_condition = "EXISTS (SELECT 1 FROM #{CustomField.table_name} ifa WHERE ifa.is_for_all = #{connection.quoted_true} AND ifa.id = #{id_column})" + 
       " OR #{Issue.table_name}.project_id IN (SELECT project_id FROM #{table_name_prefix}custom_fields_projects#{table_name_suffix} WHERE custom_field_id = #{id_column})"
 
     "((#{sql}) AND (#{tracker_condition}) AND (#{project_condition}))"

app/models/issue_query.rb

@@ -429,7 +429,7 @@ class IssueQuery < Query
         " WHERE #{Member.table_name}.project_id = #{Issue.table_name}.project_id))"
     when "=", "!"
       role_cond = value.any? ?
-        "#{MemberRole.table_name}.role_id IN (" + value.collect{|val| "'#{ActiveRecord::Base.connection.quote_string(val)}'"}.join(",") + ")" :
+        "#{MemberRole.table_name}.role_id IN (" + value.collect{|val| "'#{connection.quote_string(val)}'"}.join(",") + ")" :
         "1=0"
 
       sw = operator == "!" ? 'NOT' : ''
@@ -441,7 +441,7 @@ class IssueQuery < Query
 
   def sql_for_is_private_field(field, operator, value)
     op = (operator == "=" ? 'IN' : 'NOT IN')
-    va = value.map {|v| v == '0' ? connection.quoted_false : ActiveRecord::Base.connection.quoted_true}.uniq.join(',')
+    va = value.map {|v| v == '0' ? connection.quoted_false : connection.quoted_true}.uniq.join(',')
 
     "#{Issue.table_name}.is_private #{op} (#{va})"
   end
@@ -460,14 +460,14 @@ class IssueQuery < Query
     sql = case operator
       when "*", "!*"
         op = (operator == "*" ? 'IN' : 'NOT IN')
-        "#{Issue.table_name}.id #{op} (SELECT DISTINCT #{IssueRelation.table_name}.#{join_column} FROM #{IssueRelation.table_name} WHERE #{IssueRelation.table_name}.relation_type = '#{ActiveRecord::Base.connection.quote_string(relation_type)}')"
+        "#{Issue.table_name}.id #{op} (SELECT DISTINCT #{IssueRelation.table_name}.#{join_column} FROM #{IssueRelation.table_name} WHERE #{IssueRelation.table_name}.relation_type = '#{connection.quote_string(relation_type)}')"
       when "=", "!"
         op = (operator == "=" ? 'IN' : 'NOT IN')
-        "#{Issue.table_name}.id #{op} (SELECT DISTINCT #{IssueRelation.table_name}.#{join_column} FROM #{IssueRelation.table_name} WHERE #{IssueRelation.table_name}.relation_type = '#{ActiveRecord::Base.connection.quote_string(relation_type)}' AND #{IssueRelation.table_name}.#{target_join_column} = #{value.first.to_i})"
+        "#{Issue.table_name}.id #{op} (SELECT DISTINCT #{IssueRelation.table_name}.#{join_column} FROM #{IssueRelation.table_name} WHERE #{IssueRelation.table_name}.relation_type = '#{connection.quote_string(relation_type)}' AND #{IssueRelation.table_name}.#{target_join_column} = #{value.first.to_i})"
       when "=p", "=!p", "!p"
         op = (operator == "!p" ? 'NOT IN' : 'IN')
         comp = (operator == "=!p" ? '<>' : '=')
-        "#{Issue.table_name}.id #{op} (SELECT DISTINCT #{IssueRelation.table_name}.#{join_column} FROM #{IssueRelation.table_name}, #{Issue.table_name} relissues WHERE #{IssueRelation.table_name}.relation_type = '#{ActiveRecord::Base.connection.quote_string(relation_type)}' AND #{IssueRelation.table_name}.#{target_join_column} = relissues.id AND relissues.project_id #{comp} #{value.first.to_i})"
+        "#{Issue.table_name}.id #{op} (SELECT DISTINCT #{IssueRelation.table_name}.#{join_column} FROM #{IssueRelation.table_name}, #{Issue.table_name} relissues WHERE #{IssueRelation.table_name}.relation_type = '#{connection.quote_string(relation_type)}' AND #{IssueRelation.table_name}.#{target_join_column} = relissues.id AND relissues.project_id #{comp} #{value.first.to_i})"
       end
 
     if relation_options[:sym] == field && !options[:reverse]

app/models/project.rb

@@ -492,7 +492,7 @@ class Project < ActiveRecord::Base
   # Deletes all project's members
   def delete_all_members
     me, mr = Member.table_name, MemberRole.table_name
-    ActiveRecord::Base.connection.delete("DELETE FROM #{mr} WHERE #{mr}.member_id IN (SELECT #{me}.id FROM #{me} WHERE #{me}.project_id = #{id})")
+    connection.delete("DELETE FROM #{mr} WHERE #{mr}.member_id IN (SELECT #{me}.id FROM #{me} WHERE #{me}.project_id = #{id})")
     Member.delete_all(['project_id = ?', id])
   end
 

app/models/query.rb

@@ -640,7 +640,7 @@ class Query < ActiveRecord::Base
             sql = "#{db_table}.#{db_field} BETWEEN #{value.first.to_f - 1e-5} AND #{value.first.to_f + 1e-5}"
           end
         else
-          sql = "#{db_table}.#{db_field} IN (" + value.collect{|val| "'#{ActiveRecord::Base.connection.quote_string(val)}'"}.join(",") + ")"
+          sql = "#{db_table}.#{db_field} IN (" + value.collect{|val| "'#{connection.quote_string(val)}'"}.join(",") + ")"
         end
       else
         # IN an empty set
@@ -648,7 +648,7 @@ class Query < ActiveRecord::Base
       end
     when "!"
       if value.any?
-        sql = "(#{db_table}.#{db_field} IS NULL OR #{db_table}.#{db_field} NOT IN (" + value.collect{|val| "'#{ActiveRecord::Base.connection.quote_string(val)}'"}.join(",") + "))"
+        sql = "(#{db_table}.#{db_field} IS NULL OR #{db_table}.#{db_field} NOT IN (" + value.collect{|val| "'#{connection.quote_string(val)}'"}.join(",") + "))"
       else
         # NOT IN an empty set
         sql = "1=1"
@@ -690,9 +690,9 @@ class Query < ActiveRecord::Base
         end
       end
     when "o"
-      sql = "#{queried_table_name}.status_id IN (SELECT id FROM #{IssueStatus.table_name} WHERE is_closed=#{ActiveRecord::Base.connection.quoted_false})" if field == "status_id"
+      sql = "#{queried_table_name}.status_id IN (SELECT id FROM #{IssueStatus.table_name} WHERE is_closed=#{connection.quoted_false})" if field == "status_id"
     when "c"
-      sql = "#{queried_table_name}.status_id IN (SELECT id FROM #{IssueStatus.table_name} WHERE is_closed=#{ActiveRecord::Base.connection.quoted_true})" if field == "status_id"
+      sql = "#{queried_table_name}.status_id IN (SELECT id FROM #{IssueStatus.table_name} WHERE is_closed=#{connection.quoted_true})" if field == "status_id"
     when "><t-"
       # between today - n days and today
       sql = relative_date_clause(db_table, db_field, - value.first.to_i, 0)
@@ -754,9 +754,9 @@ class Query < ActiveRecord::Base
       date = Date.today
       sql = date_clause(db_table, db_field, date.beginning_of_year, date.end_of_year)
     when "~"
-      sql = "LOWER(#{db_table}.#{db_field}) LIKE '%#{ActiveRecord::Base.connection.quote_string(value.first.to_s.downcase)}%'"
+      sql = "LOWER(#{db_table}.#{db_field}) LIKE '%#{connection.quote_string(value.first.to_s.downcase)}%'"
     when "!~"
-      sql = "LOWER(#{db_table}.#{db_field}) NOT LIKE '%#{ActiveRecord::Base.connection.quote_string(value.first.to_s.downcase)}%'"
+      sql = "LOWER(#{db_table}.#{db_field}) NOT LIKE '%#{connection.quote_string(value.first.to_s.downcase)}%'"
     else
       raise "Unknown query operator #{operator}"
     end
@@ -819,7 +819,7 @@ class Query < ActiveRecord::Base
       if self.class.default_timezone == :utc
         from = from.utc
       end
-      s << ("#{table}.#{field} > '%s'" % [ActiveRecord::Base.connection.quoted_date(from)])
+      s << ("#{table}.#{field} > '%s'" % [connection.quoted_date(from)])
     end
     if to
       if to.is_a?(Date)
@@ -828,7 +828,7 @@ class Query < ActiveRecord::Base
       if self.class.default_timezone == :utc
         to = to.utc
       end
-      s << ("#{table}.#{field} <= '%s'" % [ActiveRecord::Base.connection.quoted_date(to)])
+      s << ("#{table}.#{field} <= '%s'" % [connection.quoted_date(to)])
     end
     s.join(' AND ')
   end

app/models/repository.rb

@@ -424,10 +424,10 @@ class Repository < ActiveRecord::Base
     ci = "#{table_name_prefix}changesets_issues#{table_name_suffix}"
     cp = "#{table_name_prefix}changeset_parents#{table_name_suffix}"
 
-    ActiveRecord::Base.connection.delete("DELETE FROM #{ch} WHERE #{ch}.changeset_id IN (SELECT #{cs}.id FROM #{cs} WHERE #{cs}.repository_id = #{id})")
+    connection.delete("DELETE FROM #{ch} WHERE #{ch}.changeset_id IN (SELECT #{cs}.id FROM #{cs} WHERE #{cs}.repository_id = #{id})")
-    ActiveRecord::Base.connection.delete("DELETE FROM #{ci} WHERE #{ci}.changeset_id IN (SELECT #{cs}.id FROM #{cs} WHERE #{cs}.repository_id = #{id})")
+    connection.delete("DELETE FROM #{ci} WHERE #{ci}.changeset_id IN (SELECT #{cs}.id FROM #{cs} WHERE #{cs}.repository_id = #{id})")
-    ActiveRecord::Base.connection.delete("DELETE FROM #{cp} WHERE #{cp}.changeset_id IN (SELECT #{cs}.id FROM #{cs} WHERE #{cs}.repository_id = #{id})")
+    connection.delete("DELETE FROM #{cp} WHERE #{cp}.changeset_id IN (SELECT #{cs}.id FROM #{cs} WHERE #{cs}.repository_id = #{id})")
-    ActiveRecord::Base.connection.delete("DELETE FROM #{cs} WHERE #{cs}.repository_id = #{id}")
+    connection.delete("DELETE FROM #{cs} WHERE #{cs}.repository_id = #{id}")
     clear_extra_info_of_changesets
   end