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Use joins instead of sub-queries in group by/sort by when using custom fields (#12713). 

Sub-queries in group by are not supported by SQLServer.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@11102 e93f8b46-1217-0410-a6f0-8f06a7374b81
This commit is contained in:
Jean-Philippe Lang 2013-01-03 12:28:50 +00:00
parent 049eaeb776
commit d82159bcf5
3 changed files with 26 additions and 22 deletions
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34
app/models/custom_field.rb
View File

@ -180,18 +180,12 @@ class CustomField < ActiveRecord::Base
case field_format
when 'string', 'text', 'list', 'date', 'bool'
# COALESCE is here to make sure that blank and NULL values are sorted equally
"COALESCE((SELECT cv_sort.value FROM #{CustomValue.table_name} cv_sort" +
" WHERE cv_sort.customized_type='#{self.class.customized_class.base_class.name}'" +
" AND cv_sort.customized_id=#{self.class.customized_class.table_name}.id" +
" AND cv_sort.custom_field_id=#{id} LIMIT 1), '')"
"COALESCE(#{join_alias}.value, '')"
when 'int', 'float'
# Make the database cast values into numeric
# Postgresql will raise an error if a value can not be casted!
# CustomValue validations should ensure that it doesn't occur
"(SELECT CAST(cv_sort.value AS decimal(30,3)) FROM #{CustomValue.table_name} cv_sort" +
" WHERE cv_sort.customized_type='#{self.class.customized_class.base_class.name}'" +
" AND cv_sort.customized_id=#{self.class.customized_class.table_name}.id" +
" AND cv_sort.custom_field_id=#{id} AND cv_sort.value <> '' AND cv_sort.value IS NOT NULL LIMIT 1)"
"CAST(#{join_alias}.value AS decimal(30,3))"
when 'user', 'version'
value_class.fields_for_order_statement(value_join_alias)
else
@ -207,10 +201,7 @@ class CustomField < ActiveRecord::Base
when 'list', 'date', 'bool', 'int'
order_statement
when 'user', 'version'
"COALESCE((SELECT cv_sort.value FROM #{CustomValue.table_name} cv_sort" +
" WHERE cv_sort.customized_type='#{self.class.customized_class.base_class.name}'" +
" AND cv_sort.customized_id=#{self.class.customized_class.table_name}.id" +
" AND cv_sort.custom_field_id=#{id} LIMIT 1), '')"
"COALESCE(#{join_alias}.value, '')"
else
nil
end
@ -230,6 +221,25 @@ class CustomField < ActiveRecord::Base
" AND #{join_alias}_2.custom_field_id = #{join_alias}.custom_field_id)" +
" LEFT OUTER JOIN #{value_class.table_name} #{value_join_alias}" +
" ON CAST(#{join_alias}.value as decimal(30,0)) = #{value_join_alias}.id"
when 'int', 'float'
"LEFT OUTER JOIN #{CustomValue.table_name} #{join_alias}" +
" ON #{join_alias}.customized_type = '#{self.class.customized_class.base_class.name}'" +
" AND #{join_alias}.customized_id = #{self.class.customized_class.table_name}.id" +
" AND #{join_alias}.custom_field_id = #{id}" +
" AND #{join_alias}.value <> ''" +
" AND #{join_alias}.id = (SELECT max(#{join_alias}_2.id) FROM #{CustomValue.table_name} #{join_alias}_2" +
" WHERE #{join_alias}_2.customized_type = #{join_alias}.customized_type" +
" AND #{join_alias}_2.customized_id = #{join_alias}.customized_id" +
" AND #{join_alias}_2.custom_field_id = #{join_alias}.custom_field_id)"
when 'string', 'text', 'list', 'date', 'bool'
"LEFT OUTER JOIN #{CustomValue.table_name} #{join_alias}" +
" ON #{join_alias}.customized_type = '#{self.class.customized_class.base_class.name}'" +
" AND #{join_alias}.customized_id = #{self.class.customized_class.table_name}.id" +
" AND #{join_alias}.custom_field_id = #{id}" +
" AND #{join_alias}.id = (SELECT max(#{join_alias}_2.id) FROM #{CustomValue.table_name} #{join_alias}_2" +
" WHERE #{join_alias}_2.customized_type = #{join_alias}.customized_type" +
" AND #{join_alias}_2.customized_id = #{join_alias}.customized_id" +
" AND #{join_alias}_2.custom_field_id = #{join_alias}.custom_field_id)"
else
nil
end

2
app/models/issue_query.rb
View File

@ -253,7 +253,7 @@ class IssueQuery < Query
if grouped?
begin
# Rails3 will raise an (unexpected) RecordNotFound if there's only a nil group value
r = Issue.visible.count(:group => group_by_statement, :include => [:status, :project], :conditions => statement)
r = Issue.visible.count(:joins => joins_for_order_statement(group_by_statement), :group => group_by_statement, :include => [:status, :project], :conditions => statement)
rescue ActiveRecord::RecordNotFound
r = {nil => issue_count}
end

12
test/unit/query_test.rb
View File

@ -877,9 +877,7 @@ class QueryTest < ActiveSupport::TestCase
c = q.available_columns.find {|col| col.is_a?(QueryCustomFieldColumn) && col.custom_field.field_format == 'string' }
assert c
assert c.sortable
issues = Issue.includes([:assigned_to, :status, :tracker, :project, :priority]).where(
q.statement
).order("#{c.sortable} ASC").all
issues = q.issues(:order => "#{c.sortable} ASC")
values = issues.collect {|i| i.custom_value_for(c.custom_field).to_s}
assert !values.empty?
assert_equal values.sort, values
@ -890,9 +888,7 @@ class QueryTest < ActiveSupport::TestCase
c = q.available_columns.find {|col| col.is_a?(QueryCustomFieldColumn) && col.custom_field.field_format == 'string' }
assert c
assert c.sortable
issues = Issue.includes([:assigned_to, :status, :tracker, :project, :priority]).where(
q.statement
).order("#{c.sortable} DESC").all
issues = q.issues(:order => "#{c.sortable} DESC")
values = issues.collect {|i| i.custom_value_for(c.custom_field).to_s}
assert !values.empty?
assert_equal values.sort.reverse, values
@ -903,9 +899,7 @@ class QueryTest < ActiveSupport::TestCase
c = q.available_columns.find {|col| col.is_a?(QueryCustomFieldColumn) && col.custom_field.field_format == 'float' }
assert c
assert c.sortable
issues = Issue.includes([:assigned_to, :status, :tracker, :project, :priority]).where(
q.statement
).order("#{c.sortable} ASC").all
issues = q.issues(:order => "#{c.sortable} ASC")
values = issues.collect {|i| begin; Kernel.Float(i.custom_value_for(c.custom_field).to_s); rescue; nil; end}.compact
assert !values.empty?
assert_equal values.sort, values