121 lines
7 KiB
Ruby
121 lines
7 KiB
Ruby
class SetMysqlToUnicodeMb4 < ActiveRecord::Migration
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# Converts the tables and strings columns to utf8mb4, which is the true, full
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# unicode support in MySQl
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def self.up
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# shorten indexes regardless of the RDBMS provider - for consitency
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shorten_indexes
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change_encoding('utf8mb4', 'utf8mb4_bin') if AppConfig.mysql?
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end
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def self.down
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change_encoding('utf8', 'utf8_bin') if AppConfig.mysql?
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end
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def check_config(encoding, collation)
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connection_config = ActiveRecord::Base.connection_config
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raise "Database encoding is not #{encoding}!" if connection_config[:encoding] != encoding
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raise "Database collation is not #{collation}!" if connection_config[:collation] != collation
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end
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def change_encoding(encoding, collation)
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# Make sure the podmin changed the database.yml file
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check_config(encoding, collation)
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execute "ALTER DATABASE `#{ActiveRecord::Base.connection.current_database}` CHARACTER SET #{encoding} COLLATE #{collation};"
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tables.each do |table|
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execute "ALTER TABLE `#{table}` CHARACTER SET = #{encoding} COLLATE #{collation}"
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end
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character_columns.each do |table, columns|
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columns.each do |column|
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execute "ALTER TABLE `#{table}` CHANGE `#{column.name}` `#{column.name}` #{column.sql_type} CHARACTER SET #{encoding} COLLATE #{collation} #{column.null ? 'NULL' : 'NOT NULL'} #{"DEFAULT '#{column.default}'" if column.has_default?};"
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end
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end
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end
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def character_columns
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# build a hash with all the columns that contain characters
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@character_columns ||= tables.map {|table|
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col = columns(table)
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.select {|column| column.type == :string || column.type == :text }
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next if col.empty?
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[table, col]
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}.compact.to_h
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end
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def shorten_indexes
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remove_index 'aspect_visibilities', :name => 'shareable_and_aspect_id'
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add_index 'aspect_visibilities', ["shareable_id", "shareable_type", "aspect_id"], :name => 'shareable_and_aspect_id', length: {"shareable_type"=>189}, :using => :btree
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remove_index 'aspect_visibilities', :name => 'index_aspect_visibilities_on_shareable_id_and_shareable_type'
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add_index 'aspect_visibilities', ["shareable_id", "shareable_type"], :name => 'index_aspect_visibilities_on_shareable_id_and_shareable_type', length: {"shareable_type"=>190}, :using => :btree
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remove_index 'chat_contacts', :name => 'index_chat_contacts_on_user_id_and_jid'
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add_index 'chat_contacts', ["user_id", "jid"], :name => 'index_chat_contacts_on_user_id_and_jid', length: {"jid"=>190}, :using => :btree, :unique => true
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remove_index 'comments', :name => 'index_comments_on_guid'
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add_index 'comments', ["guid"], :name => 'index_comments_on_guid', length: {"guid"=>191}, :using => :btree, :unique => true
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remove_index 'likes', :name => 'index_likes_on_guid'
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add_index 'likes', ["guid"], :name => 'index_likes_on_guid', length: {"guid"=>191}, :using => :btree, :unique => true
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remove_index 'o_embed_caches', :name => 'index_o_embed_caches_on_url'
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add_index 'o_embed_caches', ["url"], :name => 'index_o_embed_caches_on_url', length: {"url"=>191}, :using => :btree
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remove_index 'participations', :name => 'index_participations_on_guid'
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add_index 'participations', ["guid"], :name => 'index_participations_on_guid', length: {"guid"=>191}, :using => :btree
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remove_index 'people', :name => 'index_people_on_diaspora_handle'
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add_index "people", ["diaspora_handle"], :name => "index_people_on_diaspora_handle", :unique => true, :length => {"diaspora_handle" => 191}
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remove_index 'people', :name => 'index_people_on_guid'
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add_index 'people', ["guid"], :name => 'index_people_on_guid', length: {"guid"=>191}, :using => :btree, :unique => true
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remove_index 'photos', :name => 'index_photos_on_status_message_guid'
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add_index 'photos', ["status_message_guid"], :name => 'index_photos_on_status_message_guid', length: {"status_message_guid"=>191}, :using => :btree
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remove_index 'posts', :name => 'index_posts_on_guid'
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add_index 'posts', ["guid"], :name => 'index_posts_on_guid', length: {"guid"=>191}, :using => :btree, :unique => true
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remove_index 'posts', :name => 'index_posts_on_status_message_guid_and_pending'
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add_index 'posts', ["status_message_guid", "pending"], :name => 'index_posts_on_status_message_guid_and_pending', length: {"status_message_guid"=>190}, :using => :btree
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remove_index 'posts', :name => 'index_posts_on_status_message_guid'
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add_index 'posts', ["status_message_guid"], :name => 'index_posts_on_status_message_guid', length: {"status_message_guid"=>191}, :using => :btree
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remove_index 'posts', :name => 'index_posts_on_author_id_and_root_guid'
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add_index 'posts', ["author_id", "root_guid"], :name => 'index_posts_on_author_id_and_root_guid', length: {"root_guid"=>190}, :using => :btree, :unique => true
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remove_index 'posts', :name => 'index_posts_on_root_guid'
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add_index 'posts', ["root_guid"], :name => 'index_posts_on_root_guid', length: {"root_guid"=>191}
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remove_index 'rails_admin_histories', :name => 'index_rails_admin_histories'
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add_index 'rails_admin_histories', ["item", "table", "month", "year"], :name => 'index_rails_admin_histories', length: {"table"=>188}, :using => :btree
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remove_index 'schema_migrations', :name => 'unique_schema_migrations'
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add_index 'schema_migrations', ["version"], :name => 'unique_schema_migrations', length: {"version"=>191}, :using => :btree
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remove_index 'services', :name => 'index_services_on_type_and_uid'
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add_index 'services', ["type", "uid"], :name => 'index_services_on_type_and_uid', length: {"type"=>64, "uid"=>127}, :using => :btree
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remove_index 'taggings', :name => 'index_taggings_on_taggable_id_and_taggable_type_and_context'
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add_index 'taggings', ["taggable_id", "taggable_type", "context"], :name => 'index_taggings_on_taggable_id_and_taggable_type_and_context', length: {"taggable_type"=>95, "context"=>95}, :using => :btree
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remove_index 'tags', :name => 'index_tags_on_name'
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add_index 'tags', ["name"], :name => 'index_tags_on_name', length: {"name"=>191}, :using => :btree, :unique => true
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remove_index 'users', :name => 'index_users_on_invitation_service_and_invitation_identifier'
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add_index 'users', ["invitation_service", "invitation_identifier"], :name => 'index_users_on_invitation_service_and_invitation_identifier', length: {"invitation_service"=>64, "invitation_identifier"=>127}, :using => :btree, :unique => true
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remove_index 'users', :name => 'index_users_on_username'
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add_index 'users', ["username"], :name => 'index_users_on_username', length: {"username"=>191}, :using => :btree, :unique => true
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remove_index 'users', :name => 'index_users_on_email'
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add_index 'users', ["email"], :name => 'index_users_on_email', length: {"email"=>191}, :using => :btree
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remove_index 'notifications', :name => 'index_notifications_on_target_type_and_target_id'
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add_index 'notifications', ["target_type", "target_id"], name: 'index_notifications_on_target_type_and_target_id', length: {"target_type"=>190}, using: :btree
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end
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end
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