##// END OF EJS Templates
Optimizes the SQL query behind Principal#member_of....
Jean-Philippe Lang -
r11196:64bbf64fb6f3
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@@ -1,112 +1,112
1 1 # Redmine - project management software
2 2 # Copyright (C) 2006-2013 Jean-Philippe Lang
3 3 #
4 4 # This program is free software; you can redistribute it and/or
5 5 # modify it under the terms of the GNU General Public License
6 6 # as published by the Free Software Foundation; either version 2
7 7 # of the License, or (at your option) any later version.
8 8 #
9 9 # This program is distributed in the hope that it will be useful,
10 10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
11 11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 12 # GNU General Public License for more details.
13 13 #
14 14 # You should have received a copy of the GNU General Public License
15 15 # along with this program; if not, write to the Free Software
16 16 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
17 17
18 18 class Principal < ActiveRecord::Base
19 19 self.table_name = "#{table_name_prefix}users#{table_name_suffix}"
20 20
21 21 # Account statuses
22 22 STATUS_ANONYMOUS = 0
23 23 STATUS_ACTIVE = 1
24 24 STATUS_REGISTERED = 2
25 25 STATUS_LOCKED = 3
26 26
27 27 has_many :members, :foreign_key => 'user_id', :dependent => :destroy
28 28 has_many :memberships, :class_name => 'Member', :foreign_key => 'user_id', :include => [ :project, :roles ], :conditions => "#{Project.table_name}.status<>#{Project::STATUS_ARCHIVED}", :order => "#{Project.table_name}.name"
29 29 has_many :projects, :through => :memberships
30 30 has_many :issue_categories, :foreign_key => 'assigned_to_id', :dependent => :nullify
31 31
32 32 # Groups and active users
33 33 scope :active, lambda { where(:status => STATUS_ACTIVE) }
34 34
35 35 scope :like, lambda {|q|
36 36 q = q.to_s
37 37 if q.blank?
38 38 where({})
39 39 else
40 40 pattern = "%#{q}%"
41 41 sql = %w(login firstname lastname mail).map {|column| "LOWER(#{table_name}.#{column}) LIKE LOWER(:p)"}.join(" OR ")
42 42 params = {:p => pattern}
43 43 if q =~ /^(.+)\s+(.+)$/
44 44 a, b = "#{$1}%", "#{$2}%"
45 45 sql << " OR (LOWER(#{table_name}.firstname) LIKE LOWER(:a) AND LOWER(#{table_name}.lastname) LIKE LOWER(:b))"
46 46 sql << " OR (LOWER(#{table_name}.firstname) LIKE LOWER(:b) AND LOWER(#{table_name}.lastname) LIKE LOWER(:a))"
47 47 params.merge!(:a => a, :b => b)
48 48 end
49 49 where(sql, params)
50 50 end
51 51 }
52 52
53 53 # Principals that are members of a collection of projects
54 54 scope :member_of, lambda {|projects|
55 55 projects = [projects] unless projects.is_a?(Array)
56 56 if projects.empty?
57 57 where("1=0")
58 58 else
59 59 ids = projects.map(&:id)
60 active.where("#{Principal.table_name}.id IN (SELECT DISTINCT user_id FROM #{Member.table_name} WHERE project_id IN (?))", ids)
60 active.uniq.joins(:members).where("#{Member.table_name}.project_id IN (?)", ids)
61 61 end
62 62 }
63 63 # Principals that are not members of projects
64 64 scope :not_member_of, lambda {|projects|
65 65 projects = [projects] unless projects.is_a?(Array)
66 66 if projects.empty?
67 67 where("1=0")
68 68 else
69 69 ids = projects.map(&:id)
70 70 where("#{Principal.table_name}.id NOT IN (SELECT DISTINCT user_id FROM #{Member.table_name} WHERE project_id IN (?))", ids)
71 71 end
72 72 }
73 73 scope :sorted, lambda { order(*Principal.fields_for_order_statement)}
74 74
75 75 before_create :set_default_empty_values
76 76
77 77 def name(formatter = nil)
78 78 to_s
79 79 end
80 80
81 81 def <=>(principal)
82 82 if principal.nil?
83 83 -1
84 84 elsif self.class.name == principal.class.name
85 85 self.to_s.downcase <=> principal.to_s.downcase
86 86 else
87 87 # groups after users
88 88 principal.class.name <=> self.class.name
89 89 end
90 90 end
91 91
92 92 # Returns an array of fields names than can be used to make an order statement for principals.
93 93 # Users are sorted before Groups.
94 94 # Examples:
95 95 def self.fields_for_order_statement(table=nil)
96 96 table ||= table_name
97 97 columns = ['type DESC'] + (User.name_formatter[:order] - ['id']) + ['lastname', 'id']
98 98 columns.uniq.map {|field| "#{table}.#{field}"}
99 99 end
100 100
101 101 protected
102 102
103 103 # Make sure we don't try to insert NULL values (see #4632)
104 104 def set_default_empty_values
105 105 self.login ||= ''
106 106 self.hashed_password ||= ''
107 107 self.firstname ||= ''
108 108 self.lastname ||= ''
109 109 self.mail ||= ''
110 110 true
111 111 end
112 112 end
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