ProcessWire - Datenbank manuell abfragen: Unterschied zwischen den Versionen
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Steff (Diskussion | Beiträge) |
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| Zeile 5: | Zeile 5: | ||
$result = $this->db->query("SELECT id, name, title, url FROM yourtablename WHERE id=$id"); | $result = $this->db->query("SELECT id, name, title, url FROM yourtablename WHERE id=$id"); | ||
| − | === | + | === Seiten (mit URL) aus externer Tabelle generieren === |
But if that data needs to stay external, then Sinnut's solution is a good way to go. You would use the DB's primary key (or some other unique column) to serve as the urlSegment that loads the page. You'd setup one page/template to handle all that data, and it would find it like this: | But if that data needs to stay external, then Sinnut's solution is a good way to go. You would use the DB's primary key (or some other unique column) to serve as the urlSegment that loads the page. You'd setup one page/template to handle all that data, and it would find it like this: | ||
<syntaxhighlight lang="php"> | <syntaxhighlight lang="php"> | ||
| Zeile 21: | Zeile 21: | ||
echo "<li>Year: $year</li>"; | echo "<li>Year: $year</li>"; | ||
echo "</ul>"; | echo "</ul>"; | ||
| + | </syntaxhighlight> | ||
| + | |||
| + | === Externe Datenbank nutzen === | ||
| + | Working with an external database can be pretty simple: | ||
| + | <syntaxhighlight lang="php"> | ||
| + | protected function externalDbConnect(){ | ||
| + | $this->extDb = new mysqli('localhost', 'xxxx', 'yyyy', 'zzzz'); | ||
| + | } | ||
| + | protected function queryCount($qry){ | ||
| + | $result = $this->extDb->query($qry); | ||
| + | return $result->num_rows; | ||
| + | } | ||
| + | protected function queryForFields($table){ | ||
| + | $a = array(); | ||
| + | $result = $this->extDb->query('SHOW COLUMNS FROM '.$table); | ||
| + | while($row = $result->fetch_array(MYSQLI_ASSOC)) $a[] = $row['Field']; | ||
| + | return $a; | ||
| + | } | ||
</syntaxhighlight> | </syntaxhighlight> | ||
Version vom 17. Oktober 2018, 16:34 Uhr
https://processwire.com/talk/topic/1684-reading-and-displaying-data-from-a-custom-table/ http://processwire.com/api/include/ (Bootstraping -> import data to recide in PW
Snippets
Datenbankabfrage aus PW
$result = $this->db->query("SELECT id, name, title, url FROM yourtablename WHERE id=$id");
Seiten (mit URL) aus externer Tabelle generieren
But if that data needs to stay external, then Sinnut's solution is a good way to go. You would use the DB's primary key (or some other unique column) to serve as the urlSegment that loads the page. You'd setup one page/template to handle all that data, and it would find it like this:
$key = (int) $input->urlSegment1;
if(!$key) throw new Wire404Exception();
$result = $yourDB->query("SELECT make, model, year FROM your_table WHERE id=$key");
if(!$item->num_rows) throw new Wire404Exception();
list($make, $model, $year) = $result->fetch_row();
echo "<ul>";
echo "<li>Make: $make</li>";
echo "<li>Model: $model</li>";
echo "<li>Year: $year</li>";
echo "</ul>";
Externe Datenbank nutzen
Working with an external database can be pretty simple:
protected function externalDbConnect(){
$this->extDb = new mysqli('localhost', 'xxxx', 'yyyy', 'zzzz');
}
protected function queryCount($qry){
$result = $this->extDb->query($qry);
return $result->num_rows;
}
protected function queryForFields($table){
$a = array();
$result = $this->extDb->query('SHOW COLUMNS FROM '.$table);
while($row = $result->fetch_array(MYSQLI_ASSOC)) $a[] = $row['Field'];
return $a;
}