Class: Decidim::Upgrade::WysiwygMigrator

Inherits:
Object
  • Object
show all
Defined in:
decidim-core/lib/decidim/upgrade/wysiwyg_migrator.rb

Defined Under Namespace

Classes: UndefinedColumnError

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(content) ⇒ WysiwygMigrator

Returns a new instance of WysiwygMigrator.



168
169
170
171
# File 'decidim-core/lib/decidim/upgrade/wysiwyg_migrator.rb', line 168

def initialize(content)
  @doc = Nokogiri::HTML5.parse("")
  @content = content
end

Class Method Details

.batch_range(idx, data) ⇒ Object



31
32
33
34
# File 'decidim-core/lib/decidim/upgrade/wysiwyg_migrator.rb', line 31

def batch_range(idx, data)
  start = idx * batch_size
  (start + 1)..(start + data.count)
end

.batch_sizeObject



27
28
29
# File 'decidim-core/lib/decidim/upgrade/wysiwyg_migrator.rb', line 27

def batch_size
  @batch_size ||= 100
end

.convert(content) ⇒ Object



159
160
161
162
163
164
165
# File 'decidim-core/lib/decidim/upgrade/wysiwyg_migrator.rb', line 159

def convert(content)
  if content.is_a?(Hash)
    content.transform_values { |v| convert(v) }
  else
    new(content).run
  end
end

.convert_model_data(relation, columns) ⇒ Object



52
53
54
55
56
57
58
59
60
61
62
63
64
# File 'decidim-core/lib/decidim/upgrade/wysiwyg_migrator.rb', line 52

def convert_model_data(relation, columns)
  {}.tap do |converted|
    relation.pluck(:id, *columns).map do |data|
      record_data = {}
      columns.each_with_index do |column, idx|
        value = data[idx + 1]
        record_data[column.to_s] = yield value, column
      end

      converted[data[0]] = record_data
    end
  end
end

.editor_attributes_for(manifest) ⇒ Object



124
125
126
127
128
129
130
131
132
133
# File 'decidim-core/lib/decidim/upgrade/wysiwyg_migrator.rb', line 124

def editor_attributes_for(manifest)
  editor_attributes = { global: [], step: [] }
  editor_attributes.keys.each do |type|
    manifest.settings(type).attributes.each do |key, attribute|
      editor_attributes[type] << key.to_s if attribute.editor
    end
    editor_attributes.delete(type) if editor_attributes[type].blank?
  end
  editor_attributes
end

.hash_subkey(hash, subkey = nil) ⇒ Object

This is just a simplification method to avoid extending the cyclomatic complexity of the settings hash value update lambda. In case a subkey is given, the value of that key in the given hash will be yielded. If no subkey is given, the hash itself is yielded. This allows us to avoid repeating the same code twice in the ‘update_settings` method depending on the depth of the hash we want to manage.



72
73
74
75
76
77
78
79
80
81
82
# File 'decidim-core/lib/decidim/upgrade/wysiwyg_migrator.rb', line 72

def hash_subkey(hash, subkey = nil)
  return if hash.blank?

  if subkey.nil?
    yield hash
  else
    return if hash[subkey.to_s].blank?

    yield hash[subkey.to_s]
  end
end

.model_registryObject



9
10
11
# File 'decidim-core/lib/decidim/upgrade/wysiwyg_migrator.rb', line 9

def model_registry
  @model_registry ||= []
end

.register_model(klass, columns) ⇒ Object



13
14
15
16
17
18
19
20
21
22
23
24
25
# File 'decidim-core/lib/decidim/upgrade/wysiwyg_migrator.rb', line 13

def register_model(klass, columns)
  if klass.is_a?(String)
    # Guard clause for when the module has not added to the instance.
    return unless Object.const_defined?(klass)

    klass = Object.const_get(klass)
  end

  columns.each do |col|
    raise UndefinedColumnError, "#{klass} does not have column named '#{col}'." unless klass.column_names.include?(col.to_s)
  end
  model_registry << { class: klass, columns: }
end

.update_component_settingsObject



135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
# File 'decidim-core/lib/decidim/upgrade/wysiwyg_migrator.rb', line 135

def update_component_settings
  Decidim.component_manifests.each do |manifest|
    editor_attributes = editor_attributes_for(manifest)
    next if editor_attributes.blank?

    # The step settings are stored in the DB with the key name in plural
    # format which is why we change it here. The `editor_attributes_for`
    # returns that key in singular format because this is how it it is
    # known by the manifest. Also, we need to define the type of the
    # settings values as step settings are stored in multi-dimensional
    # hash where each value contains settings for the defined step.
    keys = {}
    keys[:global] = { type: :single, keys: editor_attributes[:global] } if editor_attributes[:global].present?
    keys[:steps] = { type: :multi, keys: editor_attributes[:step] } if editor_attributes[:step].present?

    update_settings(
      Decidim::Component.where(manifest_name: manifest.name),
      keys
    ) do |_klass, range|
      yield manifest.name, range if block_given?
    end
  end
end

.update_modelsObject



84
85
86
87
88
89
90
91
92
93
# File 'decidim-core/lib/decidim/upgrade/wysiwyg_migrator.rb', line 84

def update_models(&)
  model_registry.each do |model|
    update_records_batches(
      model[:class],
      model[:columns],
      ->(value, _column) { convert(value) },
      &
    )
  end
end

.update_records_batches(query, columns, value_convert) ⇒ Object



36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
# File 'decidim-core/lib/decidim/upgrade/wysiwyg_migrator.rb', line 36

def update_records_batches(query, columns, value_convert)
  query.in_batches(of: batch_size).each_with_index do |relation, idx|
    data = convert_model_data(relation, columns, &value_convert)
    next if data.empty?

    yield relation.klass, batch_range(idx, data) if block_given?

    # We are not using `update(data.keys, data.values)` here because
    # we want to bypass the overridden model methods, to be able to
    # update the data efficiently.
    data.each do |id, values|
      relation.klass.find(id).update_columns(values) # rubocop:disable Rails/SkipsModelValidations
    end
  end
end

.update_settings(query, keys) ⇒ Object



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
# File 'decidim-core/lib/decidim/upgrade/wysiwyg_migrator.rb', line 95

def update_settings(query, keys, &)
  keys = { nil => keys } unless keys.is_a?(Hash)

  update_records_batches(
    query,
    [:settings],
    lambda do |settings, _column|
      keys.each do |key, definition|
        definition = { type: :single, keys: definition } unless definition.is_a?(Hash)

        hash_subkey(settings, key) do |current|
          subkeys = definition[:type] == :multi ? current.keys : [nil]
          subkeys.each do |subkey|
            hash_subkey(current, subkey) do |attrs|
              definition[:keys].each do |attribute|
                attrs[attribute.to_s] = convert(attrs[attribute.to_s])
              end
              attrs
            end
          end
        end
      end

      settings
    end,
    &
  )
end

Instance Method Details

#runObject



173
174
175
176
177
178
179
180
181
182
183
184
185
186
# File 'decidim-core/lib/decidim/upgrade/wysiwyg_migrator.rb', line 173

def run
  return content unless content

  content_doc = Nokogiri::HTML5.parse(content)
  content_root = content_doc.at("//body")
  return content if content_root.children.empty?
  return content if content_root.children.length == 1 && content_root.children.first.name == "text"

  root = doc.at("//body")
  content_root.children.each do |node|
    append_node(root, convert_node(node))
  end
  root.inner_html
end