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Made a more verbose example for WHERE/IN queries.

RandomEtc 2012-06-29 20:00:12 -07:00
parent 11e4ae196d
commit 5b32d8c7a6
1 changed files with 12 additions and 1 deletions
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13
FAQ.md

@ -136,4 +136,15 @@ client.query("SELECT * FROM stooges WHERE name IN ($1)", [ ['larry', 'curly', 'm
client.query("SELECT * FROM stooges WHERE name IN ($1, $2, $3)", ['larry', 'curly', 'moe'], ...);
```
See [#129](https://github.com/brianc/node-postgres/issues/129) and [#82](https://github.com/brianc/node-postgres/issues/82) for more details.
To do this in a general purpose way, try:
```javascript
var stooge_names = ['larry', 'curly', 'moe'];
var offset = 1;
var placeholders = stooge_names.map(function(name,i) {
return '$'+(i+offset);
}).join(',');
client.query("SELECT * FROM stooges WHERE name IN ("+placeholders+")", stooge_names, ...);
```
If you have other values and placeholders in your query you'll need to use a different `offset` value for the array placeholders. See [#129](https://github.com/brianc/node-postgres/issues/129) and [#82](https://github.com/brianc/node-postgres/issues/82) for extra discussion.