Computed field használata CCK mezőkön végzet műveletekhez.

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A fórumon is felmerült, és én is mindig keresgélek, ha Computed Field-et kell használnom, úgyhogy gyorsan lejegyzetelem, amíg friss bennem a téma. :)

Gyorsa összefoglalás: A Computed field egy olyan CCK mező, amelyneket a tartalom szerkesztésekor nem lehet módosítani, hanem előre megírt php kóddal a node mentésekor töltődik fel adattal.

Az én esetemben a feladat az volt, hogy a felhasználó a születési dátumot adja meg, de az jelenjen meg, hogy hány éves az illető.

Felvettem egy CCK mezőt, aminek az lett a neve, hogy szul_ev és egy computed field-et kor névvel.

A computed field Computed Code mezőjébe mindig olyan php kódot kell írni, aminek a vége: $node_field[*]['value']=.

Az én esetemben a kód ennyire egyszerű:

[geshifilter-drupal6]$ev = (date("Y")); $node_field[0]['value'] = $ev-$node->field_szul_ev[0]['value']-1;[/geshifilter-drupal6]

Egy másik CCK mezőre a következőképpen hivatkozunk: $node->field_mezod_neve_amit_megadtal[*]['value']

A * itt egy sorszám. Ha felvettél egy mezőt, és beállítottad, hogy az Értékek száma mondjuk 5, akkor 0-4-ig egyesével hivatkozhatsz rá.

Most, hogy ezt így leírtam, remélem meg is jegyzem, mire legközelebb használnom kell. :)

Update: Ha cf beállításainál nem adjuk meg, hogy az adatbázisba is mentse az értéket, akkor az minden rendereléskor le fog futni, ergo mindig aktuális lesz az év.

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