Class: SchemaComments::SchemaComment::SortedStore

Inherits:
YAML::Store
  • Object
show all
Defined in:
lib/schema_comments/schema_comment.rb

Instance Method Summary collapse

Instance Method Details

#dump(table) ⇒ Object

Raises:



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
 
# File 'lib/schema_comments/schema_comment.rb', line 102

def dump(table)
  root = nil
  StringIO.open do |io|
    YAML.dump(@table, io)
    io.rewind
    root = YAML.load(io)
  end
  table_comments = root['table_comments'] || {}
  column_comments = root['column_comments'] || {}
  # 大元は
  # table_comments:
  #   ...
  # column_comments:
  #   ...
  # その他
  #   ...
  # の順番です。
  raise YamlError, "Broken schame_comments.yml" unless root.is_a?(Hash)
  root.extend(HashKeyOrderable)
  root.key_order = %w(table_comments column_comments)
  # table_comments はテーブル名のアルファベット順
  table_names = ActiveRecord::Base.connection.tables.sort - ['schema_migrations']
  raise YamlError, "Broken schame_comments.yml" unless table_comments.is_a?(Hash)
  table_comments.extend(HashKeyOrderable)
  table_comments.key_order = table_names
  # column_comments もテーブル名のアルファベット順
  raise YamlError, "Broken schame_comments.yml" unless column_comments.is_a?(Hash)
  column_comments.extend(HashKeyOrderable)
  column_comments.key_order = table_names
  # column_comments の各値はテーブルのカラム順
  column_comments.each do |table_name, column_hash|
    column_hash ||= {}
    column_names = nil
    begin
      columns = ActiveRecord::Base.connection.columns_without_schema_comments(table_name)
      column_names = columns.map(&:name)
    rescue ActiveRecord::ActiveRecordError
      column_names = column_hash.keys.sort
    end
    column_names.delete('id')
    raise YamlError, "Broken schame_comments.yml" unless column_hash.is_a?(Hash)
    column_hash.extend(HashKeyOrderable)
    column_hash.key_order = column_names
  end
  root.to_yaml(@opt)
end