summaryrefslogtreecommitdiff
path: root/app/models/note.rb
blob: 58133f1581fa9b47f9b70c23f957e1f58801f3fc (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
class Note < ActiveRecord::Base
  extend ActiveModel::Naming
  include Gitlab::CurrentSettings
  include Participable
  include Mentionable
  include Awardable

  default_value_for :system, false

  attr_mentionable :note, pipeline: :note
  participant :author

  belongs_to :project
  belongs_to :noteable, polymorphic: true, touch: true
  belongs_to :author, class_name: "User"
  belongs_to :updated_by, class_name: "User"

  has_many :todos, dependent: :destroy

  delegate :gfm_reference, :local_reference, to: :noteable
  delegate :name, to: :project, prefix: true
  delegate :name, :email, to: :author, prefix: true
  delegate :title, to: :noteable, allow_nil: true

  validates :note, :project, presence: true

  # Attachments are deprecated and are handled by Markdown uploader
  validates :attachment, file_size: { maximum: :max_attachment_size }

  validates :noteable_type, presence: true
  validates :noteable_id, presence: true, unless: :for_commit?
  validates :commit_id, presence: true, if: :for_commit?
  validates :author, presence: true

  validate unless: :for_commit? do |note|
    unless note.noteable.try(:project) == note.project
      errors.add(:invalid_project, 'Note and noteable project mismatch')
    end
  end

  mount_uploader :attachment, AttachmentUploader

  # Scopes
  scope :for_commit_id, ->(commit_id) { where(noteable_type: "Commit", commit_id: commit_id) }
  scope :system, ->{ where(system: true) }
  scope :user, ->{ where(system: false) }
  scope :common, ->{ where(noteable_type: ["", nil]) }
  scope :fresh, ->{ order(created_at: :asc, id: :asc) }
  scope :inc_author_project, ->{ includes(:project, :author) }
  scope :inc_author, ->{ includes(:author) }

  scope :legacy_diff_notes, ->{ where(type: 'LegacyDiffNote') }
  scope :non_diff_notes, ->{ where(type: ['Note', nil]) }

  scope :with_associations, -> do
    includes(:author, :noteable, :updated_by,
             project: [:project_members, { group: [:group_members] }])
  end

  before_validation :clear_blank_line_code!

  class << self
    def model_name
      ActiveModel::Name.new(self, nil, 'note')
    end

    def build_discussion_id(noteable_type, noteable_id)
      [:discussion, noteable_type.try(:underscore), noteable_id].join("-")
    end

    def discussions
      all.group_by(&:discussion_id).values
    end

    def grouped_diff_notes
      legacy_diff_notes.select(&:active?).sort_by(&:created_at).group_by(&:line_code)
    end

    # Searches for notes matching the given query.
    #
    # This method uses ILIKE on PostgreSQL and LIKE on MySQL.
    #
    # query   - The search query as a String.
    # as_user - Limit results to those viewable by a specific user
    #
    # Returns an ActiveRecord::Relation.
    def search(query, as_user: nil)
      table   = arel_table
      pattern = "%#{query}%"

      Note.joins('LEFT JOIN issues ON issues.id = noteable_id').
        where(table[:note].matches(pattern)).
        merge(Issue.visible_to_user(as_user))
    end
  end

  def cross_reference?
    system && SystemNoteService.cross_reference?(note)
  end

  def diff_note?
    false
  end

  def legacy_diff_note?
    false
  end

  def active?
    true
  end

  def discussion_id
    @discussion_id ||=
      if for_merge_request?
        [:discussion, :note, id].join("-")
      else
        self.class.build_discussion_id(noteable_type, noteable_id || commit_id)
      end
  end

  def max_attachment_size
    current_application_settings.max_attachment_size.megabytes.to_i
  end

  def hook_attrs
    attributes
  end

  def for_commit?
    noteable_type == "Commit"
  end

  def for_issue?
    noteable_type == "Issue"
  end

  def for_merge_request?
    noteable_type == "MergeRequest"
  end

  def for_snippet?
    noteable_type == "Snippet"
  end

  # override to return commits, which are not active record
  def noteable
    if for_commit?
      project.commit(commit_id)
    else
      super
    end
  # Temp fix to prevent app crash
  # if note commit id doesn't exist
  rescue
    nil
  end

  # FIXME: Hack for polymorphic associations with STI
  #        For more information visit http://api.rubyonrails.org/classes/ActiveRecord/Associations/ClassMethods.html#label-Polymorphic+Associations
  def noteable_type=(noteable_type)
    super(noteable_type.to_s.classify.constantize.base_class.to_s)
  end

  # Reset notes events cache
  #
  # Since we do cache @event we need to reset cache in special cases:
  # * when a note is updated
  # * when a note is removed
  # 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
    Event.reset_event_cache_for(self)
  end

  def editable?
    !system?
  end

  def cross_reference_not_visible_for?(user)
    cross_reference? && referenced_mentionables(user).empty?
  end

  def award_emoji?
    award_emoji_supported? && contains_emoji_only?
  end

  def clear_blank_line_code!
    self.line_code = nil if self.line_code.blank?
  end

  def award_emoji_supported?
    noteable.is_a?(Awardable)
  end

  def contains_emoji_only?
    note =~ /\A#{Banzai::Filter::EmojiFilter.emoji_pattern}\s?\Z/
  end

  def award_emoji_name
    original_name = note.match(Banzai::Filter::EmojiFilter.emoji_pattern)[1]
    Gitlab::AwardEmoji.normalize_emoji_name(original_name)
  end
end