mirror of
https://github.com/discourse/discourse.git
synced 2025-04-22 13:04:02 +08:00
251cac39af
* It only imports users and emails so far * It stores mapped IDs and usernames in a SQLite DB. In the future, we might want to copy those into the Discourse DB at the end of a migration. * The importer is split into steps which can mostly be configured with a simple DSL * Data that needs to be shared between steps can be stored in an instance of the `SharedData` class * Steps are automatically sorted via their defined dependencies before they are executed * Common logic for finding unique names (username, group name) is extracted into a helper class * If possible, steps try to avoid loading already imported data (via `mapping.ids` table) * And steps should select the `discourse_id` instead of the `original_id` of mapped IDs via SQL
77 lines
1.6 KiB
Ruby
77 lines
1.6 KiB
Ruby
# frozen_string_literal: true
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require "date"
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require "extralite"
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require "ipaddr"
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require "oj"
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module Migrations
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module Database
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INTERMEDIATE_DB_SCHEMA_PATH = File.join(::Migrations.root_path, "db", "intermediate_db_schema")
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MAPPINGS_DB_SCHEMA_PATH = File.join(::Migrations.root_path, "db", "mappings_db_schema")
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UPLOADS_DB_SCHEMA_PATH = File.join(::Migrations.root_path, "db", "uploads_db_schema")
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def self.migrate(db_path, migrations_path:)
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Migrator.new(db_path).migrate(migrations_path)
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end
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def self.reset!(db_path)
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Migrator.new(db_path).reset!
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end
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def self.connect(path)
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connection = Connection.new(path:)
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return connection unless block_given?
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begin
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yield(connection)
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ensure
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connection.close
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end
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nil
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end
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def self.format_datetime(value)
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value&.utc&.iso8601
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end
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def self.format_date(value)
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value&.to_date&.iso8601
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end
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def self.format_boolean(value)
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return nil if value.nil?
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value ? 1 : 0
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end
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def self.format_ip_address(value)
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return nil if value.blank?
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IPAddr.new(value).to_s
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rescue ArgumentError
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nil
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end
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def self.to_blob(value)
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return nil if value.blank?
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::Extralite::Blob.new(value)
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end
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def self.to_json(value)
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return nil if value.nil?
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::Oj.dump(value, mode: :compat)
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end
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def self.to_date(text)
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text.present? ? Date.parse(text) : nil
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end
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def self.to_datetime(text)
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text.present? ? DateTime.parse(text) : nil
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end
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def self.to_boolean(value)
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value == 1
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end
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end
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end
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