Custom Post Type “Event”: chronological list of recurring events

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i’m looking for a good and easy way to have a custom post type “event” that can have multiple dates. (I have tested about 20 plugins). I think i have no problem building a metabox allowing the user to duplicate the field group “date and time” multiple times. But how would a query look like that creates a chronological list of events from the meta data?

(The project is a playing schedule for a theatre. Productions play on several dates.) Thank you!

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  1. Here’s a plan:

    1. Store the dates as individual custom fields with the same meta_key (ex: start_date)
    2. JOIN the wp_posts table with the wp_postmeta table, without a GROUP BY (to allow the same event to appear more than once)
    3. ORDER BY start_date

    The full query would look like this:

    SELECT wp_posts.*, meta_value AS start_date
FROM wp_posts INNER JOIN wp_postmeta ON (ID = post_ID)
WHERE post_type = 'event'
AND post_status = 'publish'
AND meta_key = 'start_date'
ORDER BY start_date

    PS: This requires you store the date in YYYY-MM-DD format, which you should do anyway, for compatibility with mysql2date() etc.