diff options
Diffstat (limited to 'engine/lib/database.php')
| -rw-r--r-- | engine/lib/database.php | 149 |
1 files changed, 147 insertions, 2 deletions
diff --git a/engine/lib/database.php b/engine/lib/database.php index 847fe784b..c1b7d7f50 100644 --- a/engine/lib/database.php +++ b/engine/lib/database.php @@ -160,7 +160,7 @@ * @param string $acl_table The table where the access control field is. * @param string $acl_field The field containing the access control. * @param string $object_owner_table The table containing the owner information for the stuff you're retrieving. - * @param string $object_owner_id_field The field in $object_owner_table containing + * @param string $object_owner_id_field The field in $object_owner_table containing the owner information */ function __construct($acl_table = "entities", $acl_field = "access_id", $object_owner_table = "entities", $object_owner_id_field = "owner_guid") { @@ -291,7 +291,7 @@ */ class WhereStaticQueryComponent extends WhereQueryComponent { - /** + /** * A where query. * * @param string $left_table The table on the left of the operator @@ -603,6 +603,151 @@ } } + + /** + * @class SimpleQuery + * A wrapper for Query which provides simple interface for common functions. + * @author Marcus Povey + */ + class SimpleQuery extends Query + { + function __construct() + { + parent::__construct(); + + // Set a default query type (select) + $this->simpleQueryType(); + + // Set a default access control + $this->simpleAccessControl(); + + // Set default limit and offset + $this->simpleLimitAndOffset(); + } + + /** + * Set the query type. + * + * @param string $type The type of search - available are "select", "update", "delete", "insert". + */ + public function simpleQueryType($type = "select") + { + $type = strtolower(sanitise_string($type)); + + switch ($type) + { + case "insert" : + return $this->setQueryType(InsertQueryTypeQueryComponent()); + break; + case "delete" : + return $this->setQueryType(DeleteQueryTypeQueryComponent()); + break; + case "update" : + return $this->setQueryType(UpdateQueryTypeQueryComponent()); + break; + default: return $this->setQueryType(SelectQueryTypeQueryComponent()); + } + } + + /** + * Set a field to query in a select statement. + * + * @param string $table Table to query. + * @param string $field Field in that table. + */ + public function simpleSelectField($table, $field) { return $this->setSelectField(new SelectFieldQueryComponent($table, $field)); } + + /** + * Add a select field to query in a select statement. + * + * @param string $table Table to query. + * @param string $field Field in that table. + */ + public function simpleAddSelectField($table, $field) { return $this->addSelectField(new SelectFieldQueryComponent($table, $field)); } + + /** + * Add a set value to an update query. + * + * @param string $table The table to update. + * @param string $field The field in the table. + * @param mixed $value The value to set it to. + */ + public function simpleSet($table, $field, $value) { return $this->addSet(new SetQueryComponent($table, $field, $value)); } + + /** + * Add a join to the table. + * + * @param string $table Table one to join... + * @param string $field Field 1 with... + * @param string $table2 Table 2 ... + * @param string $field2 Field... + * @param string $operator Using this operator + */ + public function simpleJoin($table1, $field1, $table2, $field2, $operator = "=") { return $this->addJoin(new JoinQueryComponent($table1, $field1, $table2, $field2, $operator)); } + + /** + * Add a table to the query. + * + * @param string $table The table. + */ + public function simpleTable($table) { return $this->addTable(new TableQueryComponent($table)); } + + /** + * Compare one table/field to another table/field. + * + * @param string $left_table The table on the left of the operator + * @param string $left_field The left field + * @param string $operator The operator eg "=" or "<" + * @param string $right_table The table on the right of the operator + * @param string $right_field The right field + * @param string $link_operator How this where clause links with the previous clause, eg. "and" "or" + */ + public function simpleWhereOnTable($left_table, $left_field, $operator, $right_table, $right_field, $link_operator = "and") { return $this->addWhere(new WhereQueryComponent($left_table, $left_field, $operator, $right_table, $right_field, $link_operator)); } + + /** + * Compare one table/field to a value. + * + * @param string $left_table The table on the left of the operator + * @param string $left_field The left field + * @param string $operator The operator eg "=" or "<" + * @param string $value The value + * @param string $link_operator How this where clause links with the previous clause, eg. "and" "or" + */ + public function simpleWhereOnValue($left_table, $left_field, $operator, $value, $link_operator = "and") { return $this->addWhere(new WhereStaticQueryComponent($left_table, $left_field, $operator, $value, $link_operator)); } + + /** + * Set access control. + * + * @param string $acl_table The table where the access control field is. + * @param string $acl_field The field containing the access control. + * @param string $object_owner_id_field The field in $object_owner_table containing the owner information. + */ + public function simpleAccessControl($acl_table = "entities", $acl_field = "access_id", $object_owner_id_field = "owner_guid") { return $this->setAccessControl(new AccessControlQueryComponent($acl_table, $acl_field, $acl_table, $object_owner_id_field)); } + + /** + * Set the limit and offset. + * + * @param int $limit The limit. + * @param int $offset The offset. + */ + public function simpleLimitAndOffset($limit = 25, $offset = 0) { return $this->setLimitAndOffset(new LimitOffsetQueryComponent($limit, $offset)); } + + /** + * Set the order query. + * + * @param string $table The table to query + * @param string $field The field to query + * @param string $order Order the query + */ + public function simpleOrder($table, $field, $order = "desc") + { + $table = sanitise_string($table); + $field = sanitise_string($field); + $order = strtolower(sanitise_string($order)); + + return $this->setOrder(new OrderQueryComponent($table, $field, $order)); break; + } + } /**
* Connect to the database server and use the Elgg database for a particular database link
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