Class: DbSchema::Migrator

Inherits:
Object
  • Object
show all
Defined in:
lib/db_schema/migrator.rb

Defined Under Namespace

Classes: BodyYielder

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(migration) ⇒ Migrator

Returns a new instance of Migrator.



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# File 'lib/db_schema/migrator.rb', line 5

def initialize(migration)
  @migration = migration
end

Instance Attribute Details

#migration ⇒ Object (readonly)

Returns the value of attribute migration.



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# File 'lib/db_schema/migrator.rb', line 3

def migration
  @migration
end

Instance Method Details

#applicable?(schema) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/db_schema/migrator.rb', line 9

def applicable?(schema)
  migration.conditions[:apply].all? do |condition|
    condition.call(schema)
  end && migration.conditions[:skip].none? do |condition|
    condition.call(schema)
  end
end

#run!(connection) ⇒ Object 



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# File 'lib/db_schema/migrator.rb', line 17

def run!(connection)
  migration.body.call(BodyYielder.new(connection), connection) unless migration.body.nil?
end