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Matthew OToole
22,946 PointsWhy would I be getting an array of nulls here?
I'm stuck on Q3 of the Designing Interfaces with PHP section.
Challenge Task 3 of 3
Define the "find" method that accepts the required parameters. Write a prepared statement that selects only the items that match the table, value and field passed to the method. Make sure you bind the parameters to the statement. Return an array of query results.
<?php
class sqlRepository extends PDO implements RepositoryInterface {
public function all($entity){
$db = new PDO("sqlite:".__DIR__."/database.db");
$query = $db->query("SELECT * FROM ".$entity);
$data = $query->fetchAll(PDO::FETCH_OBJ);
return $data;
}
public function find($entity, $value, $id = 'id'){
$db = new PDO("sqlite:".__DIR__."/database.db");
$stmt = $db->prepare("SELECT * FROM $entity WHERE $value = ? AND $id = ?");
$stmt->bindParam(':entity', $entity, PDO::PARAM_BOOL);
$stmt->bindParam(':value', $value, PDO::PARAM_INT);
$stmt->bindParam(':id', $id, PDO::PARAM_INT);
$stmt->execute();
$results = $stmt->fetchAll(PDO::FETCH_OBJ);
return $results;
}
}
Bummer! The results of the "find" method should return an array of objects. The current results are an array of NULLs
mark winters
1,485 Pointsmark winters
1,485 PointsYou have $stmt = $db->prepare("SELECT * FROM $entity WHERE $value = ? AND $id = ?");
this should be $stmt = $db->prepare("SELECT * FROM $entity WHERE value = ? AND id = ?"); I think.
You have used the $value and $id as column names because there are being used in the " " quotes. The $entity looks good. It is the same as "SELECT * FROM ".$entity in you're all method.