BigW Consortium Gitlab

issue.rb 5.03 KB
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require 'carrierwave/orm/activerecord'

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class Issue < ActiveRecord::Base
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  include InternalId
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  include Issuable
  include Referable
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  include Sortable
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  include Taskable
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  DueDateStruct = Struct.new(:title, :name).freeze
  NoDueDate     = DueDateStruct.new('No Due Date', '0').freeze
  AnyDueDate    = DueDateStruct.new('Any Due Date', '').freeze
  Overdue       = DueDateStruct.new('Overdue', 'overdue').freeze
  DueThisWeek   = DueDateStruct.new('Due This Week', 'week').freeze
  DueThisMonth  = DueDateStruct.new('Due This Month', 'month').freeze
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  ActsAsTaggableOn.strict_case_match = true

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  belongs_to :project
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  belongs_to :moved_to, class_name: 'Issue'

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  validates :project, presence: true

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  scope :cared, ->(user) { where(assignee_id: user) }
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  scope :open_for, ->(user) { opened.assigned_to(user) }
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  scope :in_projects, ->(project_ids) { where(project_id: project_ids) }
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  scope :without_due_date, -> { where(due_date: nil) }
  scope :due_before, ->(date) { where('issues.due_date < ?', date) }
  scope :due_between, ->(from_date, to_date) { where('issues.due_date >= ?', from_date).where('issues.due_date <= ?', to_date) }

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  scope :order_due_date_asc, -> { reorder('issues.due_date IS NULL, issues.due_date ASC') }
  scope :order_due_date_desc, -> { reorder('issues.due_date IS NULL, issues.due_date DESC') }

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  state_machine :state, initial: :opened do
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    event :close do
      transition [:reopened, :opened] => :closed
    end

    event :reopen do
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      transition closed: :reopened
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    end

    state :opened
    state :reopened
    state :closed
  end
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  def hook_attrs
    attributes
  end

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  def self.visible_to_user(user)
    return where(confidential: false) if user.blank?
    return all if user.admin?

    where('issues.confidential = false OR (issues.confidential = true AND (issues.author_id = :user_id OR issues.assignee_id = :user_id OR issues.project_id IN(:project_ids)))', user_id: user.id, project_ids: user.authorized_projects.select(:id))
  end

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  def self.reference_prefix
    '#'
  end

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  # Pattern used to extract `#123` issue references from text
  #
  # This pattern supports cross-project references.
  def self.reference_pattern
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    @reference_pattern ||= %r{
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      (#{Project.reference_pattern})?
      #{Regexp.escape(reference_prefix)}(?<issue>\d+)
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    }x
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  end

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  def self.link_reference_pattern
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    @link_reference_pattern ||= super("issues", /(?<issue>\d+)/)
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  end

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  def self.sort(method, excluded_labels: [])
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    case method.to_s
    when 'due_date_asc' then order_due_date_asc
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    when 'due_date_desc' then order_due_date_desc
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    else
      super
    end
  end

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  def to_reference(from_project = nil)
    reference = "#{self.class.reference_prefix}#{iid}"

    if cross_project_reference?(from_project)
      reference = project.to_reference + reference
    end

    reference
  end

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  def referenced_merge_requests(current_user = nil)
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    ext = all_references(current_user)

    notes_with_associations.each do |object|
      object.all_references(current_user, extractor: ext)
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    end
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    ext.merge_requests.sort_by(&:iid)
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  end

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  # All branches containing the current issue's ID, except for
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  # those with a merge request open referencing the current issue.
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  def related_branches(current_user)
    branches_with_iid = project.repository.branch_names.select do |branch|
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      branch =~ /\A#{iid}-(?!\d+-stable)/i
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    end
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    branches_with_merge_request = self.referenced_merge_requests(current_user).map(&:source_branch)

    branches_with_iid - branches_with_merge_request
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  end

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  # Reset issue events cache
  #
  # Since we do cache @event we need to reset cache in special cases:
  # * when an issue is updated
  # Events cache stored like  events/23-20130109142513.
  # The cache key includes updated_at timestamp.
  # Thus it will automatically generate a new fragment
  # when the event is updated because the key changes.
  def reset_events_cache
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    Event.reset_event_cache_for(self)
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  end
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  # To allow polymorphism with MergeRequest.
  def source_project
    project
  end
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  # From all notes on this issue, we'll select the system notes about linked
  # merge requests. Of those, the MRs closing `self` are returned.
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  def closed_by_merge_requests(current_user = nil)
    return [] unless open?

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    ext = all_references(current_user)

    notes.system.each do |note|
      note.all_references(current_user, extractor: ext)
    end

    ext.merge_requests.select { |mr| mr.open? && mr.closes_issue?(self) }
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  end
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  def moved?
    !moved_to.nil?
  end

  def can_move?(user, to_project = nil)
    if to_project
      return false unless user.can?(:admin_issue, to_project)
    end

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    !moved? && persisted? &&
      user.can?(:admin_issue, self.project)
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  end
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  def to_branch_name
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    if self.confidential?
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      "#{iid}-confidential-issue"
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    else
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      "#{iid}-#{title.parameterize}"
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    end
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  end

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  def can_be_worked_on?(current_user)
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    !self.closed? &&
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      !self.project.forked? &&
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      self.related_branches(current_user).empty? &&
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      self.closed_by_merge_requests(current_user).empty?
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  end
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  def overdue?
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    due_date.try(:past?) || false
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  end
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end