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* Set ID automatically for new objects before saving
For primary keys that are not =auto_increment=, you may want to set a unique ID for the object before saving it. You can do this:
Create a file =~/.arql.d/auto_gen_id.rb= with the following content:
#+BEGIN_SRC ruby
class :Arql::BaseModel
before_create do
if id.blank?
id_type = self.class.columns_hash['id'].sql_type.scan(/\w+/).first
case id_type
when 'bigint'
self.id = ::Arql::ID.long
when 'char'
self.id = ::Arql::ID.uuid
when 'varchar'
self.id = ::Arql::ID.uuid
end
end
end
end
#+END_SRC
Then in =~/.arql.d/init.rb=, require this file:
#+BEGIN_SRC ruby
load(File.absolute_path(File.dirname(__FILE__) + "/auto_set_id.rb"))
#+END_SRC
The prerequisite is that the primary key of your table is the =id= field, and the type is one of =bigint=, =char= or =varchar=.
If the primary key of your table is not the =id= field, you need to modify the code above.
Version data entries
8 entries across 8 versions & 1 rubygems