55 lines
1.8 KiB
Ruby
55 lines
1.8 KiB
Ruby
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# License: AGPL-3.0-or-later WITH Web-Template-Output-Additional-Permission-3.0-or-later
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class BackupUploaderColumns < ActiveRecord::Migration[5.2]
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def up
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# copy all
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HoudiniUpgrade::UPLOADERS_TO_MIGRATE.each do |table|
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create_table table.backup_table do |table|
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table.references table.name, index:true
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table.fields.each do |f|
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table.string f.migrated_name
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end
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end
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end
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# copy all
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HoudiniUpgrade::UPLOADERS_TO_MIGRATE.each do |table|
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execute <<-SQL
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INSERT INTO #{table.backup_table} (#{table.foreign_key}, #{table.fields.map(&:migrated_name).join(', ')})
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VALUES ( SELECT id, #{table.fields.map(&:migrated_name).join(', ')} FROM #{table.name})
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SQL;
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end
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# delete columns
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HoudiniUpgrade::UPLOADERS_TO_MIGRATE.each do |table|
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fields.each do |f|
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drop_column table.name, f.migrated_name
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end
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end
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end
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def down
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## readd columns
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HoudiniUpgrade::UPLOADERS_TO_MIGRATE.each do |table|
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fields.each do |f|
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add_column table.name, f.migrated_name, :string
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end
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end
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# copy all
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HoudiniUpgrade::UPLOADERS_TO_MIGRATE.each do |table|
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execute <<-SQL
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UPDATE #{table.name} SET (#{table.fields.map(&:migrated_name).join(', ')}) = (
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SELECT (#{table.fields.map(&:migrated_name).join(', ')}) FROM #{table.backup_table}
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WHERE #{table.backup_table}.#{table.foreign_key} = #{table.name}.id
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)
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SQL;
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end
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# delete tables
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HoudiniUpgrade::UPLOADERS_TO_MIGRATE.each{ |entity, _| drop_table table.backup_table}
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end
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end
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