• Hello Fabrik Community

    Fabrik is now in the hands of the development team that brought you Fabrik for Joomla 4. We have recently transitioned the Fabrik site over to a new server and are busy trying to clean it up. We have upgraded the site to Joomla 4 and are running the latest version of Fabrik 4. We have also upgraded the Xenforo forum software to the latest version. Many of the widgets you might have been used to on the forum are no longer operational, many abandoned by the developers. We hope to bring back some of the important ones as we have time.

    Exciting times to be sure.

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How to use field records to filter your db_join?

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  • Imagine you have a big database table about tree-species. And you want to select a tree that is used for fruit (filter1) production and that is able to grow in your climate (filter2). Filter1 can be applied by "WHERE {thistable}.mainuse = 5 (=fruit)", but how can u filter AND {thistable}.annualrainfall = .......? Because every user has a different annual rainfall. I got the following idea to select the tree that does grow in your climate and has also fruit:

    Create 2 field Elements (farm_altitude & farm_annual_rainfall) and 1 db_join element (element3). And the following "Joins WHERE statament":

    WHERE {thistable}.mainuse = 5

    AND {thistable}.altitudemin < {currenttable___farm_altitude}
    AND {thistable}.altitudemax > {currenttable___farm_altitude}
    AND {thistable}.rainmin < {currenttable___farm_annual_rainfall}
    AND {thistable}.rainmax > {currenttable___farm_annual_rainfall}

    An optional second step is to disable access in "add more" to select element3 and to create a form plugin to redirect (on Add mode) the form of the last saved record (use {rowid} in your URL). So after saving your record you will be redirected to the "Edit mode" of the record u just added. And in this "edit mode you will be able to select the tree species in element3 . Copy the same redirect URL in your form plugin on edit and change ../form/... into .../details/.... After saving your record on edit you will be directed to the detail-view of your record.
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