the SO article suggests you have 2 tables and create a relationship between (lookup Eloqunt Relationships in the docs)

I think it's better, like somebody suggests on SO, to keep everything in one table. The flow will be like

• user creates new article, type = draft

• admin presses publish, type changed to published

• user edits existing article with type published and when the user presses save a new article is created with type = draft and parent_id to the id of the original article

• admin presses publish, the original article is updated with the data from the draft and the draft is discarded

something like that