Displaying 2 results from an estimated 2 matches for "referenceitem".
2006 Apr 09
4
Inheritance via Though Associations?
I posted something about this a week ago wihtout response, but have made some
progress since. However, I''m still not getting exactly what I want.
OK, three core tables:
create_table :reference_items do |t|
t.column :title, :string, :limit => 255
t.column :year, :integer, :limit => 4
t.column :type, :string
t.column
2006 Apr 02
0
STI and through
...ey,
"type" varchar(20),
"title" varchar(255),
"year" year(4)
);
CREATE TABLE "agents" (
"id" integer primary key,
"type" varchar(20),
"sort_name" varchar(255),
"description" text
);
So I''ve got ReferenceItem and Agent classes, each of which has subclasses (for
the first, stuff like Book, Article, etc.).
The third key table links the above:
CREATE TABLE contributors (
"reference_item_id" integer,
"agent_id" integer,
"position" integer,
"type" varchar(20)...