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-rw-r--r--activerecord/lib/active_record/tasks/database_tasks.rb32
1 files changed, 22 insertions, 10 deletions
diff --git a/activerecord/lib/active_record/tasks/database_tasks.rb b/activerecord/lib/active_record/tasks/database_tasks.rb
index c6204ac36f..1423e6008f 100644
--- a/activerecord/lib/active_record/tasks/database_tasks.rb
+++ b/activerecord/lib/active_record/tasks/database_tasks.rb
@@ -35,6 +35,16 @@ module ActiveRecord
#
# DatabaseTasks.create_current('production')
module DatabaseTasks
+ ##
+ # :singleton-method:
+ # Extra flags passed to database CLI tool (mysqldump/pg_dump) when calling db:structure:dump
+ mattr_accessor :structure_dump_flags, instance_accessor: false
+
+ ##
+ # :singleton-method:
+ # Extra flags passed to database CLI tool when calling db:structure:load
+ mattr_accessor :structure_load_flags, instance_accessor: false
+
extend self
attr_writer :current_config, :db_dir, :migrations_paths, :fixtures_path, :root, :env, :seed_loader
@@ -204,13 +214,13 @@ module ActiveRecord
def structure_dump(*arguments)
configuration = arguments.first
filename = arguments.delete_at 1
- class_for_adapter(configuration["adapter"]).new(*arguments).structure_dump(filename)
+ class_for_adapter(configuration["adapter"]).new(*arguments).structure_dump(filename, structure_dump_flags)
end
def structure_load(*arguments)
configuration = arguments.first
filename = arguments.delete_at 1
- class_for_adapter(configuration["adapter"]).new(*arguments).structure_load(filename)
+ class_for_adapter(configuration["adapter"]).new(*arguments).structure_load(filename, structure_load_flags)
end
def load_schema(configuration, format = ActiveRecord::Base.schema_format, file = nil) # :nodoc:
@@ -231,14 +241,6 @@ module ActiveRecord
ActiveRecord::InternalMetadata[:environment] = ActiveRecord::Migrator.current_environment
end
- def load_schema_for(*args)
- ActiveSupport::Deprecation.warn(<<-MSG.squish)
- This method was renamed to `#load_schema` and will be removed in the future.
- Use `#load_schema` instead.
- MSG
- load_schema(*args)
- end
-
def schema_file(format = ActiveRecord::Base.schema_format)
case format
when :ruby
@@ -273,6 +275,16 @@ module ActiveRecord
end
end
+ # Dumps the schema cache in YAML format for the connection into the file
+ #
+ # ==== Examples:
+ # ActiveRecord::Tasks::DatabaseTasks.dump_schema_cache(ActiveRecord::Base.connection, "tmp/schema_dump.yaml")
+ def dump_schema_cache(conn, filename)
+ conn.schema_cache.clear!
+ conn.data_sources.each { |table| conn.schema_cache.add(table) }
+ open(filename, "wb") { |f| f.write(YAML.dump(conn.schema_cache)) }
+ end
+
private
def class_for_adapter(adapter)