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My question is similar to that one which was closed for being too broad, so I'll try to be clearer.

What I have: a sqlite database (single table) containing over 50'000 posts (with fields like author, content, date, etc.). It stems from scraping a huge static, html-only website.

What I want to achieve: displaying those posts in a standard WP installation.

My approach: I would

  1. Initialize an empty WordPress website
  2. Write a script that reads a post from the original DB and writes it into the corresponding fields of the WP database (ID -> ID, author -> author, date -> date, ...)
  3. Run the WordPress engine engine and expect the posts to appear

My question: is this approach likely to succeed, or should I avoid this futile work and consider other solutions?

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I don't see any reason for this not to work. I have done similar transfers few times, and if you transfer all data correctly, and if posts in the wp_posts are well formed, with all data present (status, type...), it will work.

The tricky part might be the data that can't fit into wp_posts, and it should go into wp_postmeta, you need to take care of proper post ids. Also, make sure to use correct format for date field, make sure to have both post_date and post_date_gmt filled, guid (some unique string for each post, WP uses URL by default), and make sure author ID's are correct.

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  • I'd personally not work on the raw tables, but use WP's wp_insert_post and friends, so WP will take care of everything else, but it should work just as fine working directly on the tables.
    – janh
    Oct 20, 2017 at 15:45
  • If you have a lot of posts, it is better to use direct SQL approach, it will be much faster. But, nothing wrong with wp_insert_post for something like this.
    – Milan Petrovic
    Oct 20, 2017 at 16:34

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