debian-mirror-gitlab/spec/support/helpers/migrations_helpers.rb

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# frozen_string_literal: true
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module MigrationsHelpers
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def active_record_base(database: nil)
database_name = database || self.class.metadata[:database] || :main
unless Gitlab::Database::DATABASE_NAMES.include?(database_name.to_s)
raise ArgumentError, "#{database_name} is not a valid argument"
end
Gitlab::Database.database_base_models[database_name] || Gitlab::Database.database_base_models[:main]
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end
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def table(name, database: nil)
Class.new(active_record_base(database: database)) do
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self.table_name = name
self.inheritance_column = :_type_disabled
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def self.name
table_name.singularize.camelcase
end
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yield self if block_given?
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end
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end
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def partitioned_table(name, by: :created_at, strategy: :monthly)
klass = Class.new(active_record_base) do
include PartitionedTable
self.table_name = name
self.primary_key = :id
partitioned_by by, strategy: strategy
def self.name
table_name.singularize.camelcase
end
end
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klass.tap { Gitlab::Database::Partitioning.sync_partitions([klass]) }
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end
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def migrations_paths
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active_record_base.connection.migrations_paths
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end
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def migration_context
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ActiveRecord::MigrationContext.new(migrations_paths, ActiveRecord::SchemaMigration)
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end
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def migrations
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migration_context.migrations
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end
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def clear_schema_cache!
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active_record_base.connection_pool.connections.each do |conn|
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conn.schema_cache.clear!
end
end
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def foreign_key_exists?(source, target = nil, column: nil)
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active_record_base.connection.foreign_keys(source).any? do |key|
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if column
key.options[:column].to_s == column.to_s
else
key.to_table.to_s == target.to_s
end
end
end
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def reset_column_in_all_models
clear_schema_cache!
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# Reset column information for the most offending classes **after** we
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# migrated the schema up, otherwise, column information could be
# outdated. We have a separate method for this so we can override it in EE.
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active_record_base.descendants.each(&method(:reset_column_information))
end
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def refresh_attribute_methods
# Without this, we get errors because of missing attributes, e.g.
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# super: no superclass method `elasticsearch_indexing' for #<ApplicationSetting:0x00007f85628508d8>
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# attr_encrypted also expects ActiveRecord attribute methods to be
# defined, or it will override the accessors:
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# https://gitlab.com/gitlab-org/gitlab/issues/8234#note_113976421
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[ApplicationSetting, SystemHook].each do |model|
model.define_attribute_methods
end
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end
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def reset_column_information(klass)
klass.reset_column_information
end
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# In some migration tests, we're using factories to create records,
# however those models might be depending on a schema version which
# doesn't have the columns we want in application_settings.
# In these cases, we'll need to use the fake application settings
# as if we have migrations pending
def use_fake_application_settings
# We stub this way because we can't stub on
# `current_application_settings` due to `method_missing` is
# depending on current_application_settings...
allow(ActiveRecord::Base.connection)
.to receive(:active?)
.and_return(false)
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allow(Gitlab::Runtime)
.to receive(:rake?)
.and_return(true)
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stub_env('IN_MEMORY_APPLICATION_SETTINGS', 'false')
end
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def previous_migration(steps_back = 2)
migrations.each_cons(steps_back) do |cons|
break cons.first if cons.last.name == described_class.name
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end
end
def migration_schema_version
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metadata_schema = self.class.metadata[:schema]
if metadata_schema == :latest
migrations.last.version
else
metadata_schema || previous_migration.version
end
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end
def schema_migrate_down!
disable_migrations_output do
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migration_context.down(migration_schema_version)
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end
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reset_column_in_all_models
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end
def schema_migrate_up!
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reset_column_in_all_models
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disable_migrations_output do
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migration_context.up
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end
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reset_column_in_all_models
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refresh_attribute_methods
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end
def disable_migrations_output
ActiveRecord::Migration.verbose = false
yield
ensure
ActiveRecord::Migration.verbose = true
end
def migrate!
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open_transactions = ActiveRecord::Base.connection.open_transactions
allow_next_instance_of(described_class) do |migration|
allow(migration).to receive(:transaction_open?) do
ActiveRecord::Base.connection.open_transactions > open_transactions
end
end
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migration_context.up do |migration|
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migration.name == described_class.name
end
end
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class ReversibleMigrationTest
attr_reader :before_up, :after_up
def initialize
@before_up = -> {}
@after_up = -> {}
end
def before(expectations)
@before_up = expectations
self
end
def after(expectations)
@after_up = expectations
self
end
end
def reversible_migration(&block)
tests = yield(ReversibleMigrationTest.new)
tests.before_up.call
migrate!
tests.after_up.call
schema_migrate_down!
tests.before_up.call
end
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end
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MigrationsHelpers.prepend_mod_with('MigrationsHelpers')