issue_query.rb

Silvio Fernandes, 2016-04-26 20:38

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# Redmine - project management software
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# Copyright (C) 2006-2016  Jean-Philippe Lang
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
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class IssueQuery < Query
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  self.queried_class = Issue
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  self.available_columns = [
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    QueryColumn.new(:id, :sortable => "#{Issue.table_name}.id", :default_order => 'desc', :caption => '#', :frozen => true),
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    QueryColumn.new(:project, :sortable => "#{Project.table_name}.name", :groupable => true),
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    QueryColumn.new(:tracker, :sortable => "#{Tracker.table_name}.position", :groupable => true),
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    QueryColumn.new(:parent, :sortable => ["#{Issue.table_name}.root_id", "#{Issue.table_name}.lft ASC"], :default_order => 'desc', :caption => :field_parent_issue),
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    QueryColumn.new(:status, :sortable => "#{IssueStatus.table_name}.position", :groupable => true),
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    QueryColumn.new(:priority, :sortable => "#{IssuePriority.table_name}.position", :default_order => 'desc', :groupable => true),
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    QueryColumn.new(:subject, :sortable => "#{Issue.table_name}.subject"),
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    QueryColumn.new(:author, :sortable => lambda {User.fields_for_order_statement("authors")}, :groupable => true),
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    QueryColumn.new(:assigned_to, :sortable => lambda {User.fields_for_order_statement}, :groupable => true),
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    QueryColumn.new(:updated_on, :sortable => "#{Issue.table_name}.updated_on", :default_order => 'desc'),
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    QueryColumn.new(:category, :sortable => "#{IssueCategory.table_name}.name", :groupable => true),
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    QueryColumn.new(:fixed_version, :sortable => lambda {Version.fields_for_order_statement}, :groupable => true),
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    QueryColumn.new(:start_date, :sortable => "#{Issue.table_name}.start_date"),
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    QueryColumn.new(:due_date, :sortable => "#{Issue.table_name}.due_date"),
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    QueryColumn.new(:estimated_hours, :sortable => "#{Issue.table_name}.estimated_hours", :totalable => true),
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    QueryColumn.new(:total_estimated_hours,
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      :sortable => "COALESCE((SELECT SUM(estimated_hours) FROM #{Issue.table_name} subtasks" +
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        " WHERE subtasks.root_id = #{Issue.table_name}.root_id AND subtasks.lft >= #{Issue.table_name}.lft AND subtasks.rgt <= #{Issue.table_name}.rgt), 0)",
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      :default_order => 'desc'),
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    QueryColumn.new(:done_ratio, :sortable => "#{Issue.table_name}.done_ratio", :groupable => true),
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    QueryColumn.new(:created_on, :sortable => "#{Issue.table_name}.created_on", :default_order => 'desc'),
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    QueryColumn.new(:closed_on, :sortable => "#{Issue.table_name}.closed_on", :default_order => 'desc'),
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    QueryColumn.new(:relations, :caption => :label_related_issues),
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    QueryColumn.new(:description, :inline => false)
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  ]
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  scope :visible, lambda {|*args|
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    user = args.shift || User.current
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    base = Project.allowed_to_condition(user, :view_issues, *args)
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    scope = joins("LEFT OUTER JOIN #{Project.table_name} ON #{table_name}.project_id = #{Project.table_name}.id").
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      where("#{table_name}.project_id IS NULL OR (#{base})")
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    if user.admin?
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      scope.where("#{table_name}.visibility <> ? OR #{table_name}.user_id = ?", VISIBILITY_PRIVATE, user.id)
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    elsif user.memberships.any?
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      scope.where("#{table_name}.visibility = ?" +
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        " OR (#{table_name}.visibility = ? AND #{table_name}.id IN (" +
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          "SELECT DISTINCT q.id FROM #{table_name} q" +
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          " INNER JOIN #{table_name_prefix}queries_roles#{table_name_suffix} qr on qr.query_id = q.id" +
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          " INNER JOIN #{MemberRole.table_name} mr ON mr.role_id = qr.role_id" +
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          " INNER JOIN #{Member.table_name} m ON m.id = mr.member_id AND m.user_id = ?" +
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          " WHERE q.project_id IS NULL OR q.project_id = m.project_id))" +
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        " OR #{table_name}.user_id = ?",
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        VISIBILITY_PUBLIC, VISIBILITY_ROLES, user.id, user.id)
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    elsif user.logged?
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      scope.where("#{table_name}.visibility = ? OR #{table_name}.user_id = ?", VISIBILITY_PUBLIC, user.id)
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    else
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      scope.where("#{table_name}.visibility = ?", VISIBILITY_PUBLIC)
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    end
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  }
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  def initialize(attributes=nil, *args)
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    super attributes
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    self.filters ||= { 'status_id' => {:operator => "o", :values => [""]} }
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  end
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  # Returns true if the query is visible to +user+ or the current user.
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  def visible?(user=User.current)
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    return true if user.admin?
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    return false unless project.nil? || user.allowed_to?(:view_issues, project)
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    case visibility
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    when VISIBILITY_PUBLIC
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      true
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    when VISIBILITY_ROLES
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      if project
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        (user.roles_for_project(project) & roles).any?
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      else
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        Member.where(:user_id => user.id).joins(:roles).where(:member_roles => {:role_id => roles.map(&:id)}).any?
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      end
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    else
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      user == self.user
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    end
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  end
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  def is_private?
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    visibility == VISIBILITY_PRIVATE
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  end
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  def is_public?
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    !is_private?
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  end
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  def draw_relations
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    r = options[:draw_relations]
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    r.nil? || r == '1'
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  end
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  def draw_relations=(arg)
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    options[:draw_relations] = (arg == '0' ? '0' : nil)
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  end
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  def draw_progress_line
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    r = options[:draw_progress_line]
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    r == '1'
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  end
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  def draw_progress_line=(arg)
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    options[:draw_progress_line] = (arg == '1' ? '1' : nil)
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  end
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  def build_from_params(params)
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    super
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    self.draw_relations = params[:draw_relations] || (params[:query] && params[:query][:draw_relations])
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    self.draw_progress_line = params[:draw_progress_line] || (params[:query] && params[:query][:draw_progress_line])
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    self
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  end
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  def initialize_available_filters
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    principals = []
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    subprojects = []
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    versions = []
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    categories = []
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    issue_custom_fields = []
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    if project
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      principals += project.principals.visible
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      unless project.leaf?
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        subprojects = project.descendants.visible.to_a
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        principals += Principal.member_of(subprojects).visible
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      end
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      versions = project.shared_versions.to_a
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      categories = project.issue_categories.to_a
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      issue_custom_fields = project.all_issue_custom_fields
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    else
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      if all_projects.any?
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        principals += Principal.member_of(all_projects).visible
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      end
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      versions = Version.visible.where(:sharing => 'system').to_a
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      issue_custom_fields = IssueCustomField.where(:is_for_all => true)
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    end
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    principals.uniq!
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    principals.sort!
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    principals.reject! {|p| p.is_a?(GroupBuiltin)}
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    users = principals.select {|p| p.is_a?(User)}
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    add_available_filter "status_id",
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      :type => :list_status, :values => IssueStatus.sorted.collect{|s| [s.name, s.id.to_s] }
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    if project.nil?
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      project_values = []
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      if User.current.logged? && User.current.memberships.any?
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        project_values << ["<< #{l(:label_my_projects).downcase} >>", "mine"]
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      end
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      project_values += all_projects_values
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      add_available_filter("project_id",
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        :type => :list, :values => project_values
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      ) unless project_values.empty?
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    end
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    add_available_filter "tracker_id",
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      :type => :list, :values => trackers.collect{|s| [s.name, s.id.to_s] }
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    add_available_filter "priority_id",
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      :type => :list, :values => IssuePriority.all.collect{|s| [s.name, s.id.to_s] }
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    author_values = []
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    author_values << ["<< #{l(:label_me)} >>", "me"] if User.current.logged?
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    author_values += users.collect{|s| [s.name, s.id.to_s] }
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    add_available_filter("author_id",
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      :type => :list, :values => author_values
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    ) unless author_values.empty?
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    assigned_to_values = []
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    assigned_to_values << ["<< #{l(:label_me)} >>", "me"] if User.current.logged?
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    assigned_to_values += (Setting.issue_group_assignment? ?
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                              principals : users).collect{|s| [s.name, s.id.to_s] }
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    add_available_filter("assigned_to_id",
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      :type => :list_optional, :values => assigned_to_values
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    ) unless assigned_to_values.empty?
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    group_values = Group.givable.visible.collect {|g| [g.name, g.id.to_s] }
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    add_available_filter("member_of_group",
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      :type => :list_optional, :values => group_values
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    ) unless group_values.empty?
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    role_values = Role.givable.collect {|r| [r.name, r.id.to_s] }
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    add_available_filter("assigned_to_role",
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      :type => :list_optional, :values => role_values
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    ) unless role_values.empty?
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    add_available_filter "fixed_version_id",
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      :type => :list_optional,
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      :values => versions.sort.collect{|s| ["#{s.project.name} - #{s.name}", s.id.to_s] }
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    add_available_filter "category_id",
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      :type => :list_optional,
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      :values => categories.collect{|s| [s.name, s.id.to_s] }
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    add_available_filter "subject", :type => :text
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    add_available_filter "description", :type => :text
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    add_available_filter "created_on", :type => :date_past
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    add_available_filter "updated_on", :type => :date_past
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    add_available_filter "closed_on", :type => :date_past
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    add_available_filter "start_date", :type => :date
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    add_available_filter "due_date", :type => :date
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    add_available_filter "estimated_hours", :type => :float
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    add_available_filter "done_ratio", :type => :integer
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    if User.current.allowed_to?(:set_issues_private, nil, :global => true) ||
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      User.current.allowed_to?(:set_own_issues_private, nil, :global => true)
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      add_available_filter "is_private",
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        :type => :list,
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        :values => [[l(:general_text_yes), "1"], [l(:general_text_no), "0"]]
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    end
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    if User.current.logged?
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      add_available_filter "watcher_id",
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        :type => :list, :values => [["<< #{l(:label_me)} >>", "me"]]
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    end
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    if subprojects.any?
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      add_available_filter "subproject_id",
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        :type => :list_subprojects,
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        :values => subprojects.collect{|s| [s.name, s.id.to_s] }
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    end
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    add_custom_fields_filters(issue_custom_fields)
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    add_associations_custom_fields_filters :project, :author, :assigned_to, :fixed_version
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    IssueRelation::TYPES.each do |relation_type, options|
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      add_available_filter relation_type, :type => :relation, :label => options[:name]
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    end
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    add_available_filter "parent_id", :type => :tree, :label => :field_parent_issue
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    add_available_filter "child_id", :type => :tree, :label => :label_subtask_plural
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    Tracker.disabled_core_fields(trackers).each {|field|
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      delete_available_filter field
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    }
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  end
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  def available_columns
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    return @available_columns if @available_columns
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    @available_columns = self.class.available_columns.dup
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    @available_columns += (project ?
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                            project.all_issue_custom_fields :
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                            IssueCustomField
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                           ).visible.collect {|cf| QueryCustomFieldColumn.new(cf) }
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    if User.current.allowed_to?(:view_time_entries, project, :global => true)
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      index = @available_columns.find_index {|column| column.name == :total_estimated_hours}
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      index = (index ? index + 1 : -1)
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      # insert the column after total_estimated_hours or at the end
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      @available_columns.insert index, QueryColumn.new(:spent_hours,
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        :sortable => "COALESCE((SELECT SUM(hours) FROM #{TimeEntry.table_name} WHERE #{TimeEntry.table_name}.issue_id = #{Issue.table_name}.id), 0)",
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        :default_order => 'desc',
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        :caption => :label_spent_time,
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        :totalable => true
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      )
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      @available_columns.insert index+1, QueryColumn.new(:total_spent_hours,
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        :sortable => "COALESCE((SELECT SUM(hours) FROM #{TimeEntry.table_name} JOIN #{Issue.table_name} subtasks ON subtasks.id = #{TimeEntry.table_name}.issue_id" +
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          " WHERE subtasks.root_id = #{Issue.table_name}.root_id AND subtasks.lft >= #{Issue.table_name}.lft AND subtasks.rgt <= #{Issue.table_name}.rgt), 0)",
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        :default_order => 'desc',
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        :caption => :label_total_spent_time
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      )
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    end
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    if User.current.allowed_to?(:set_issues_private, nil, :global => true) ||
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      User.current.allowed_to?(:set_own_issues_private, nil, :global => true)
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      @available_columns << QueryColumn.new(:is_private, :sortable => "#{Issue.table_name}.is_private")
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    end
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    disabled_fields = Tracker.disabled_core_fields(trackers).map {|field| field.sub(/_id$/, '')}
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    @available_columns.reject! {|column|
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      disabled_fields.include?(column.name.to_s)
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    }
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    @available_columns
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  end
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  def default_columns_names
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    @default_columns_names ||= begin
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      default_columns = Setting.issue_list_default_columns.map(&:to_sym)
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      project.present? ? default_columns : [:project] | default_columns
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    end
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  end
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  def base_scope
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    Issue.visible.joins(:status, :project).where(statement)
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  end
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  # Returns the issue count
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  def issue_count
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    base_scope.count
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  rescue ::ActiveRecord::StatementInvalid => e
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    raise StatementInvalid.new(e.message)
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  end
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  # Returns the issue count by group or nil if query is not grouped
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  def issue_count_by_group
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    grouped_query do |scope|
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      scope.count
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    end
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  end
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  # Returns sum of all the issue's estimated_hours
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  def total_for_estimated_hours(scope)
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    map_total(scope.sum(:estimated_hours)) {|t| t.to_f.round(2)}
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  end
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  # Returns sum of all the issue's time entries hours
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  def total_for_spent_hours(scope)
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    total = if group_by_column.try(:name) == :project
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      # TODO: remove this when https://github.com/rails/rails/issues/21922 is fixed
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      # We have to do a custom join without the time_entries.project_id column
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      # that would trigger a ambiguous column name error
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      scope.joins("JOIN (SELECT issue_id, hours FROM #{TimeEntry.table_name}) AS joined_time_entries ON joined_time_entries.issue_id = #{Issue.table_name}.id").
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        sum("joined_time_entries.hours")
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    else
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      scope.joins(:time_entries).sum("#{TimeEntry.table_name}.hours")
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    end
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    map_total(total) {|t| t.to_f.round(2)}
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  end
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  # Returns the issues
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  # Valid options are :order, :offset, :limit, :include, :conditions
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  def issues(options={})
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    if group_by_sort_order.is_a?(String)
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      # convert String in Array
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      order_option = [group_by_sort_order.split(','), options[:order]].flatten.reject(&:blank?)
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    else
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      order_option = [group_by_sort_order, options[:order]].flatten.reject(&:blank?)
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    end
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    scope = Issue.visible.
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      joins(:status, :project).
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      where(statement).
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      includes(([:status, :project] + (options[:include] || [])).uniq).
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      where(options[:conditions]).
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      order(order_option).
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      joins(joins_for_order_statement(order_option.join(','))).
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      limit(options[:limit]).
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      offset(options[:offset])
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    scope = scope.preload(:custom_values)
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    if has_column?(:author)
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      scope = scope.preload(:author)
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    end
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    issues = scope.to_a
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    if has_column?(:spent_hours)
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      Issue.load_visible_spent_hours(issues)
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    end
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    if has_column?(:total_spent_hours)
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      Issue.load_visible_total_spent_hours(issues)
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    end
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    if has_column?(:relations)
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      Issue.load_visible_relations(issues)
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    end
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    issues
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  rescue ::ActiveRecord::StatementInvalid => e
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    raise StatementInvalid.new(e.message)
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  end
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  # Returns the issues ids
379
  def issue_ids(options={})
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    order_option = [group_by_sort_order, options[:order]].flatten.reject(&:blank?)
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    Issue.visible.
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      joins(:status, :project).
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      where(statement).
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      includes(([:status, :project] + (options[:include] || [])).uniq).
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      references(([:status, :project] + (options[:include] || [])).uniq).
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      where(options[:conditions]).
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      order(order_option).
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      joins(joins_for_order_statement(order_option.join(','))).
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      limit(options[:limit]).
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      offset(options[:offset]).
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      pluck(:id)
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  rescue ::ActiveRecord::StatementInvalid => e
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    raise StatementInvalid.new(e.message)
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  end
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  # Returns the journals
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  # Valid options are :order, :offset, :limit
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  def journals(options={})
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    Journal.visible.
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      joins(:issue => [:project, :status]).
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      where(statement).
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      order(options[:order]).
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      limit(options[:limit]).
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      offset(options[:offset]).
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      preload(:details, :user, {:issue => [:project, :author, :tracker, :status]}).
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      to_a
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  rescue ::ActiveRecord::StatementInvalid => e
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    raise StatementInvalid.new(e.message)
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  end
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  # Returns the versions
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  # Valid options are :conditions
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  def versions(options={})
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    Version.visible.
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      where(project_statement).
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      where(options[:conditions]).
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      includes(:project).
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      references(:project).
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      to_a
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  rescue ::ActiveRecord::StatementInvalid => e
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    raise StatementInvalid.new(e.message)
423
  end
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  def sql_for_watcher_id_field(field, operator, value)
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    db_table = Watcher.table_name
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    "#{Issue.table_name}.id #{ operator == '=' ? 'IN' : 'NOT IN' } (SELECT #{db_table}.watchable_id FROM #{db_table} WHERE #{db_table}.watchable_type='Issue' AND " +
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      sql_for_field(field, '=', value, db_table, 'user_id') + ')'
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  end
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  def sql_for_member_of_group_field(field, operator, value)
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    if operator == '*' # Any group
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      groups = Group.givable
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      operator = '=' # Override the operator since we want to find by assigned_to
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    elsif operator == "!*"
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      groups = Group.givable
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      operator = '!' # Override the operator since we want to find by assigned_to
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    else
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      groups = Group.where(:id => value).to_a
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    end
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    groups ||= []
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    members_of_groups = groups.inject([]) {|user_ids, group|
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      user_ids + group.user_ids + [group.id]
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    }.uniq.compact.sort.collect(&:to_s)
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    '(' + sql_for_field("assigned_to_id", operator, members_of_groups, Issue.table_name, "assigned_to_id", false) + ')'
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  end
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  def sql_for_assigned_to_role_field(field, operator, value)
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    case operator
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    when "*", "!*" # Member / Not member
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      sw = operator == "!*" ? 'NOT' : ''
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      nl = operator == "!*" ? "#{Issue.table_name}.assigned_to_id IS NULL OR" : ''
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      "(#{nl} #{Issue.table_name}.assigned_to_id #{sw} IN (SELECT DISTINCT #{Member.table_name}.user_id FROM #{Member.table_name}" +
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        " WHERE #{Member.table_name}.project_id = #{Issue.table_name}.project_id))"
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    when "=", "!"
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      role_cond = value.any? ?
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        "#{MemberRole.table_name}.role_id IN (" + value.collect{|val| "'#{self.class.connection.quote_string(val)}'"}.join(",") + ")" :
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        "1=0"
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      sw = operator == "!" ? 'NOT' : ''
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      nl = operator == "!" ? "#{Issue.table_name}.assigned_to_id IS NULL OR" : ''
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      "(#{nl} #{Issue.table_name}.assigned_to_id #{sw} IN (SELECT DISTINCT #{Member.table_name}.user_id FROM #{Member.table_name}, #{MemberRole.table_name}" +
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        " WHERE #{Member.table_name}.project_id = #{Issue.table_name}.project_id AND #{Member.table_name}.id = #{MemberRole.table_name}.member_id AND #{role_cond}))"
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    end
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  end
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  def sql_for_is_private_field(field, operator, value)
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    op = (operator == "=" ? 'IN' : 'NOT IN')
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    va = value.map {|v| v == '0' ? self.class.connection.quoted_false : self.class.connection.quoted_true}.uniq.join(',')
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    "#{Issue.table_name}.is_private #{op} (#{va})"
474
  end
475

    
476
  def sql_for_parent_id_field(field, operator, value)
477
    case operator
478
    when "="
479
      "#{Issue.table_name}.parent_id = #{value.first.to_i}"
480
    when "~"
481
      root_id, lft, rgt = Issue.where(:id => value.first.to_i).pluck(:root_id, :lft, :rgt).first
482
      if root_id && lft && rgt
483
        "#{Issue.table_name}.root_id = #{root_id} AND #{Issue.table_name}.lft > #{lft} AND #{Issue.table_name}.rgt < #{rgt}"
484
      else
485
        "1=0"
486
      end
487
    when "!*"
488
      "#{Issue.table_name}.parent_id IS NULL"
489
    when "*"
490
      "#{Issue.table_name}.parent_id IS NOT NULL"
491
    end
492
  end
493

    
494
  def sql_for_child_id_field(field, operator, value)
495
    case operator
496
    when "="
497
      parent_id = Issue.where(:id => value.first.to_i).pluck(:parent_id).first
498
      if parent_id
499
        "#{Issue.table_name}.id = #{parent_id}"
500
      else
501
        "1=0"
502
      end
503
    when "~"
504
      root_id, lft, rgt = Issue.where(:id => value.first.to_i).pluck(:root_id, :lft, :rgt).first
505
      if root_id && lft && rgt
506
        "#{Issue.table_name}.root_id = #{root_id} AND #{Issue.table_name}.lft < #{lft} AND #{Issue.table_name}.rgt > #{rgt}"
507
      else
508
        "1=0"
509
      end
510
    when "!*"
511
      "#{Issue.table_name}.rgt - #{Issue.table_name}.lft = 1"
512
    when "*"
513
      "#{Issue.table_name}.rgt - #{Issue.table_name}.lft > 1"
514
    end
515
  end
516

    
517
  def sql_for_relations(field, operator, value, options={})
518
    relation_options = IssueRelation::TYPES[field]
519
    return relation_options unless relation_options
520

    
521
    relation_type = field
522
    join_column, target_join_column = "issue_from_id", "issue_to_id"
523
    if relation_options[:reverse] || options[:reverse]
524
      relation_type = relation_options[:reverse] || relation_type
525
      join_column, target_join_column = target_join_column, join_column
526
    end
527

    
528
    sql = case operator
529
      when "*", "!*"
530
        op = (operator == "*" ? 'IN' : 'NOT IN')
531
        "#{Issue.table_name}.id #{op} (SELECT DISTINCT #{IssueRelation.table_name}.#{join_column} FROM #{IssueRelation.table_name} WHERE #{IssueRelation.table_name}.relation_type = '#{self.class.connection.quote_string(relation_type)}')"
532
      when "=", "!"
533
        op = (operator == "=" ? 'IN' : 'NOT IN')
534
        "#{Issue.table_name}.id #{op} (SELECT DISTINCT #{IssueRelation.table_name}.#{join_column} FROM #{IssueRelation.table_name} WHERE #{IssueRelation.table_name}.relation_type = '#{self.class.connection.quote_string(relation_type)}' AND #{IssueRelation.table_name}.#{target_join_column} = #{value.first.to_i})"
535
      when "=p", "=!p", "!p"
536
        op = (operator == "!p" ? 'NOT IN' : 'IN')
537
        comp = (operator == "=!p" ? '<>' : '=')
538
        "#{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 = '#{self.class.connection.quote_string(relation_type)}' AND #{IssueRelation.table_name}.#{target_join_column} = relissues.id AND relissues.project_id #{comp} #{value.first.to_i})"
539
      when "*o", "!o"
540
        op = (operator == "!o" ? 'NOT IN' : 'IN')
541
        "#{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 = '#{self.class.connection.quote_string(relation_type)}' AND #{IssueRelation.table_name}.#{target_join_column} = relissues.id AND relissues.status_id IN (SELECT id FROM #{IssueStatus.table_name} WHERE is_closed=#{self.class.connection.quoted_false}))"
542
      end
543

    
544
    if relation_options[:sym] == field && !options[:reverse]
545
      sqls = [sql, sql_for_relations(field, operator, value, :reverse => true)]
546
      sql = sqls.join(["!", "!*", "!p"].include?(operator) ? " AND " : " OR ")
547
    end
548
    "(#{sql})"
549
  end
550

    
551
  def find_assigned_to_id_filter_values(values)
552
    Principal.visible.where(:id => values).map {|p| [p.name, p.id.to_s]}
553
  end
554
  alias :find_author_id_filter_values :find_assigned_to_id_filter_values
555

    
556
  IssueRelation::TYPES.keys.each do |relation_type|
557
    alias_method "sql_for_#{relation_type}_field".to_sym, :sql_for_relations
558
  end
559
end