October 2008
Intermediate to advanced
832 pages
25h 20m
German
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17.5 Die Datenbank-API nutzen
Problem
Sie möchten bestehende Inhalte aus einer Datenbank abfragen oder neue Inhalte eintragen bzw. aktualisieren.
Lösung
Nutzen Sie das globale Datenbankobjekt $TYPO3_DB als Schnittstelle für Ihre Datenbankabfragen. Dieses Objekt steht Ihnen global zur Verfügung und enthält zentrale Methoden, mit denen Sie mit der Datenbank kommunizieren können.
Die Methoden rufen Sie dabei nach diesem Muster auf:
$GLOBALS['TYPO3_DB']->sql*()
Mit folgender Datenbankabfrage würden Sie beispielsweise sämtliche Seiten unterhalb der Wurzelseite ermitteln und über eine while-Schleife ausgeben:
$sql = 'SELECT * FROM pages WHERE pid = 0'; $res = $GLOBALS['TYPO3_DB']->sql_query($sql); while ($row = $GLOBALS['TYPO3_DB']->sql_fetch_assoc($res)) ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.