Class: DataMigrate::SchemaMigration

Inherits:
Object
  • Object
show all
Defined in:
lib/data_migrate/schema_migration.rb

Overview

Helper class to getting access to db schema to allow data/schema combiation tasks

Class Method Summary collapse

Class Method Details

.migrations_paths ⇒ Object 



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# File 'lib/data_migrate/schema_migration.rb', line 25

def self.migrations_paths
  spec_name = DataMigrate.config.spec_name
  # The positional argument true is to include pre-release versions, such as 7.1.0.alpha
  if spec_name && Gem::Dependency.new("railties", ">= 7.0").match?("railties", Gem.loaded_specs["railties"].version, true)
    ActiveRecord::Base.configurations.configs_for(env_name: Rails.env, name: spec_name).migrations_paths
  elsif spec_name && Gem::Dependency.new("railties", "~> 6.1").match?("railties", Gem.loaded_specs["railties"].version)
    ActiveRecord::Base.configurations.configs_for(env_name: Rails.env, spec_name: spec_name).migrations_paths
  else
    Rails.application.config.paths["db/migrate"].to_a
  end
end

.pending_schema_migrations ⇒ Object 



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# File 'lib/data_migrate/schema_migration.rb', line 7

def self.pending_schema_migrations
  all_migrations = DataMigrate::MigrationContext.new(migrations_paths).migrations
  sort_migrations(
    ActiveRecord::Migrator.new(:up, all_migrations, DataMigrate::RailsHelper.schema_migration, DataMigrate::RailsHelper.internal_metadata).
    pending_migrations.
    map {|m| { version: m.version, kind: :schema }}
  )
end

.run(direction, migration_paths, version) ⇒ Object 



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# File 'lib/data_migrate/schema_migration.rb', line 16

def self.run(direction, migration_paths, version)
  ActiveRecord::MigrationContext.new(migration_paths, DataMigrate::RailsHelper.schema_migration).run(direction, version)
end

.sort_migrations(set1, set2 = nil) ⇒ Object 



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# File 'lib/data_migrate/schema_migration.rb', line 20

def self.sort_migrations(set1, set2 = nil)
  migrations = set1 + (set2 || [])
  migrations.sort {|a, b|  sort_string(a) <=> sort_string(b)}
end

.sort_string(migration) ⇒ Object 



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# File 'lib/data_migrate/schema_migration.rb', line 37

def self.sort_string(migration)
  "#{migration[:version]}_#{migration[:kind] == :data ? 1 : 0}"
end