public function grammarDelete(Collection $collection, array $criteria = array())
{
if (func_num_args() === 1) {
return "DELETE FROM {$collection->getName()}";
} else {
throw new Exception(__METHOD__ . ' unimplemented yet!');
}
}
/**
* Constructor
*
* @param \Norm\Collection $collection
*
* @param array $criteria
*/
public function __construct(Collection $collection, $criteria = array())
{
$this->collection = $collection;
$this->connection = $collection->getConnection();
if (is_null($this->connection)) {
throw new \Exception('[Norm/Cursor] Collection does not have connection, check your configuration!');
}
if ($criteria === null) {
$criteria = array();
}
$this->criteria = $this->translateCriteria($criteria);
}
/**
* Get schema of collection
*
* @param string|null $schema
*
* @return mixed
*/
public function schema($schema = null)
{
if (func_num_args() === 0) {
return $this->collection->schema();
}
return $this->collection->schema($schema);
}
/**
* Set query to match on every field exists in schema. Beware this will override criteria
*
* @param string $q String to query
*
* @return \Norm\Cursor Chainable object
*/
public function match($q)
{
if (is_null($q)) {
return $this;
}
$orCriteria = array();
$schema = $this->collection->schema();
if (empty($schema)) {
throw new \Exception('[Norm\\Cursor] Cannot use match for schemaless collection');
}
foreach ($schema as $key => $value) {
$orCriteria[] = array($key . '!like' => $q);
}
$this->criteria = $this->translateCriteria(array('!or' => $orCriteria));
return $this;
}
/**
* Execute a query.
*
* @return int
*/
public function execute()
{
$data = array();
$wheres = array();
$matchOrs = array();
if (is_null($this->match)) {
$criteria = $this->prepareCriteria($this->criteria);
if ($criteria) {
foreach ($criteria as $key => $value) {
$wheres[] = $this->dialect->grammarExpression($key, $value, $data);
}
}
} else {
$schema = $this->collection->schema();
$i = 0;
foreach ($schema as $key => $value) {
if ($value instanceof \Norm\Schema\Reference) {
$foreign = $value['foreign'];
$foreignLabel = $value['foreignLabel'];
$foreignKey = $value['foreignKey'];
$matchOrs[] = $this->getQueryReference($key, $foreign, $foreignLabel, $foreignKey, $i);
} else {
$matchOrs[] = $key . ' LIKE :f' . $i;
$i++;
}
}
$wheres[] = '(' . implode(' OR ', $matchOrs) . ')';
}
$select = '';
if ($this->skip > 0 or $this->limit > 0) {
$select .= 'rownum r, ';
}
$select .= $this->collection->name . '.*';
$query = 'SELECT ' . $select . ' FROM ' . $this->collection->name;
$order = '';
if ($this->sortBy) {
foreach ($this->sortBy as $key => $value) {
if ($value == 1) {
$op = ' ASC';
} else {
$op = ' DESC';
}
$order[] = $key . $op;
}
if (!empty($order)) {
$order = ' ORDER BY ' . implode(',', $order);
}
}
if (!empty($wheres)) {
$query .= ' WHERE ' . implode(' AND ', $wheres);
}
$limit = '';
if ($this->skip > 0) {
$limit = 'r > ' . $this->skip . ' AND ROWNUM <= (SELECT COUNT(ROWNUM) FROM (' . $query . '))';
if ($this->limit > 0) {
$limit = 'r > ' . $this->skip . ' AND ROWNUM <= ' . $this->limit;
}
} elseif ($this->limit > 0) {
$limit = 'ROWNUM <= ' . $this->limit;
}
$query .= $order;
if ($limit !== '') {
$query = 'SELECT * FROM (' . $query . ') WHERE ' . $limit;
}
$statement = oci_parse($this->raw, $query);
foreach ($data as $key => $value) {
oci_bind_by_name($statement, ':' . $key, $data[$key]);
}
if ($matchOrs) {
$match = '%' . $this->match . '%';
foreach ($matchOrs as $key => $value) {
oci_bind_by_name($statement, ':f' . $key, $match);
}
}
oci_execute($statement);
$result = array();
while ($row = oci_fetch_array($statement, OCI_ASSOC + OCI_RETURN_LOBS + OCI_RETURN_NULLS)) {
$result[] = $row;
}
$this->rows = $result;
oci_free_statement($statement);
$this->index = -1;
}
