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dblayer : Add test of foreign keys before INSERT or UPDATE. Reject with an exception if the foreign key doesn't exists

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git-svn-id: https://svn.fournier38.fr/svn/ProgSVN/trunk@1582 bf3deb0d-5f1a-0410-827f-c0cc1f45334c
This commit is contained in:
Dominique Fournier
2014-07-28 10:13:51 +00:00
parent 2f1c06a53a
commit 414610db41
1 changed files with 71 additions and 4 deletions
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75
dblayer.php
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@@ -171,8 +171,16 @@ class dblayer extends PDO
}
/** Create a new entry in the table. Datas must be an indexed array
@param array $datas Datas to be recorded (column=>value)*/
@param array $datas Datas to be recorded (column=>value)
@obsolete 0.5 */
public function create ($datas)
{
return $this->insert ($datas);
}
/** Insert a new line of datas in the table. Datas must be an indexed array
@param array $datas Datas to be recorded (column=>value)*/
public function insert ($datas)
{
if ($this->db === null)
throw new Exception (_("Database not connected"), 500);
@@ -237,8 +245,37 @@ class dblayer extends PDO
}
}
// TODO : Check if the foreign keys constrains are valid before doing the
// insertion
// Check if the foreign keys constrains are valid before doing the insertion
foreach ($this->foreign as $foreign=>$data)
{
$table = $data[0];
$column = $data[1];
$req = "SELECT $column FROM `$table` WHERE $column=:$column";
if ($this->debug) echo "DEBUG : $req\n";
$st = $this->db->prepare ($req);
$val = $datasOK[$foreign];
$key = $column;
if ($this->debug) echo "DEBUG BIND : $column->".var_export ($val, TRUE).
"\n";
if ($val === null)
$st->bindValue (":$key", $val, PDO::PARAM_NULL);
elseif ($this->fields[$key][0] === "integer")
$st->bindValue (":$key", $val, PDO::PARAM_INT);
elseif ($this->fields[$key][0] === "varchar")
$st->bindValue (":$key", $val, PDO::PARAM_STR);
elseif ($this->fields[$key][0] === "datetime")
$st->bindValue (":$key", $val, PDO::PARAM_STR);
else
throw new Exception ("TO BE DEVELOPPED : ".$this->fields[$key][0], 500);
$st->execute ();
$res = array ();
while ($d = $st->fetch (PDO::FETCH_ASSOC))
$res[] = $d;
if (count ($res) === 0)
throw new Exception (sprintf (_("The foreign key '%s' doesn't exists"),
$column), 405);
}
$req = "INSERT INTO `".$this->table."` ";
$req .= "(".implode (",", array_keys ($datasOK)).")";
$req .= " VALUES ";
@@ -430,7 +467,37 @@ class dblayer extends PDO
}
}
// TODO : Check if the foreign keys constrains are valid before doing the
// Check if the foreign keys constrains are valid before doing the update
foreach ($this->foreign as $foreign=>$data)
{
$table = $data[0];
$column = $data[1];
$req = "SELECT $column FROM `$table` WHERE $column=:$column";
if ($this->debug) echo "DEBUG : $req\n";
$st = $this->db->prepare ($req);
$val = $datasOK[$foreign];
$key = $column;
if ($this->debug) echo "DEBUG BIND : $column->".var_export ($val, TRUE).
"\n";
if ($val === null)
$st->bindValue (":$key", $val, PDO::PARAM_NULL);
elseif ($this->fields[$key][0] === "integer")
$st->bindValue (":$key", $val, PDO::PARAM_INT);
elseif ($this->fields[$key][0] === "varchar")
$st->bindValue (":$key", $val, PDO::PARAM_STR);
elseif ($this->fields[$key][0] === "datetime")
$st->bindValue (":$key", $val, PDO::PARAM_STR);
else
throw new Exception ("TO BE DEVELOPPED : ".$this->fields[$key][0], 500);
$st->execute ();
$res = array ();
while ($d = $st->fetch (PDO::FETCH_ASSOC))
$res[] = $d;
if (count ($res) === 0)
throw new Exception (sprintf (_("The foreign key '%s' doesn't exists"),
$column), 405);
}
$datasOK[$this->primary] = $updatekey;
$req = "UPDATE `".$this->table."` SET ";
$i = 0;