Restrict same custom field value

  • alien13

    (@alien13)


    14 years, 7 months ago

    Hi, I have one question. Is there any way to restrict posts to have custom field key with same values for diffrent posts.

    Example:

    Post 1 – Custom Field Key – URL / Custom Field Value – Test 1
    Post 2 – Custom Field Key – URL / Custom Field Value – Test 2

    If user put Test 1 in Post 2 to have a message, that tell’s him that other post already use this Value.

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