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Limit, Order By

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This commit is contained in:
Roman Hergenreder 2020-04-03 14:46:29 +02:00
parent 9de6b22a90
commit 2636719583
5 changed files with 150 additions and 226 deletions
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2
core/Api/Notifications/Fetch.class.php
View File

@ -22,6 +22,7 @@ class Fetch extends Request {
->innerJoin("UserNotification", "UserNotification.notification_id", "Notification.uid")
->where(new Compare("UserNotification.user_id", $userId))
->where(new Compare("UserNotification.seen", false))
->orderBy("created_at")->descending()
->execute();
$this->success = ($res !== FALSE);
@ -53,6 +54,7 @@ class Fetch extends Request {
->innerJoin("UserGroup", "GroupNotification.group_id", "UserGroup.group_id")
->where(new Compare("UserGroup.user_id", $userId))
->where(new Compare("GroupNotification.seen", false))
->orderBy("created_at")->descending()
->execute();
$this->success = ($res !== FALSE);

114
core/Driver/SQL/MySQL.class.php
View File

@ -18,10 +18,6 @@ use \Driver\SQL\Strategy\SetDefaultStrategy;
use \Driver\SQL\Strategy\SetNullStrategy;
use \Driver\SQL\Strategy\UpdateStrategy;
use \Driver\SQL\Constraint\Unique;
use \Driver\SQL\Constraint\PrimaryKey;
use \Driver\SQL\Constraint\ForeignKey;
class MySQL extends SQL {
public function __construct($connectionData) {
@ -222,88 +218,8 @@ class MySQL extends SQL {
return $success;
}
public function executeSelect($select) {
$columns = $this->columnName($select->getColumns());
$tables = $select->getTables();
$params = array();
if (is_null($tables) || empty($tables)) {
return "SELECT $columns";
} else {
$tables = $this->tableName($tables);
}
$conditions = $select->getConditions();
if (!empty($conditions)) {
$condition = " WHERE " . $this->buildCondition($conditions, $params);
} else {
$condition = "";
}
$joinStr = "";
$joins = $select->getJoins();
if (!empty($joins)) {
$joinStr = "";
foreach($joins as $join) {
$type = $join->getType();
$joinTable = $this->tableName($join->getTable());
$columnA = $this->columnName($join->getColumnA());
$columnB = $this->columnName($join->getColumnB());
$joinStr .= " $type JOIN $joinTable ON $columnA=$columnB";
}
}
$orderBy = "";
$limit = "";
$offset = "";
$query = "SELECT $columns FROM $tables$joinStr$condition$orderBy$limit$offset";
return $this->execute($query, $params, true);
}
public function executeDelete($delete) {
$table = $delete->getTable();
$conditions = $delete->getConditions();
if (!empty($conditions)) {
$condition = " WHERE " . $this->buildCondition($conditions, $params);
} else {
$condition = "";
}
$query = "DELETE FROM $table$condition";
return $this->execute($query);
}
public function executeTruncate($truncate) {
return $this->execute("TRUNCATE " . $truncate->getTable());
}
public function executeUpdate($update) {
$params = array();
$table = $update->getTable();
$valueStr = array();
foreach($update->getValues() as $key => $val) {
$valueStr[] = "$key=" . $this->addValue($val, $params);
}
$valueStr = implode(",", $valueStr);
$conditions = $update->getConditions();
if (!empty($conditions)) {
$condition = " WHERE " . $this->buildCondition($conditions, $params);
} else {
$condition = "";
}
$query = "UPDATE $table SET $valueStr$condition";
return $this->execute($query, $params);
}
public function getColumnDefinition($column) {
$columnName = $column->getName();
$columnName = $this->columnName($column->getName());
$defaultValue = $column->getDefaultValue();
if ($column instanceof StringColumn) {
@ -344,35 +260,9 @@ class MySQL extends SQL {
$defaultValue = "";
}
return "`$columnName` $type$notNull$defaultValue";
return "$columnName $type$notNull$defaultValue";
}
public function getConstraintDefinition($constraint) {
$columnName = $constraint->getColumnName();
if ($constraint instanceof PrimaryKey) {
if (is_array($columnName)) $columnName = implode('`,`', $columnName);
return "PRIMARY KEY (`$columnName`)";
} else if ($constraint instanceof Unique) {
if (is_array($columnName)) $columnName = implode('`,`', $columnName);
return "UNIQUE (`$columnName`)";
} else if ($constraint instanceof ForeignKey) {
$refTable = $constraint->getReferencedTable();
$refColumn = $constraint->getReferencedColumn();
$strategy = $constraint->onDelete();
$code = "FOREIGN KEY (`$columnName`) REFERENCES `$refTable` (`$refColumn`)";
if ($strategy instanceof SetDefaultStrategy) {
$code .= " ON DELETE SET DEFAULT";
} else if($strategy instanceof SetNullStrategy) {
$code .= " ON DELETE SET NULL";
} else if($strategy instanceof CascadeStrategy) {
$code .= " ON DELETE CASCADE";
}
return $code;
}
}
// TODO: check this please..
public function getValueDefinition($value) {
if (is_numeric($value)) {
return $value;

106
core/Driver/SQL/PostgreSQL.class.php
View File

@ -18,10 +18,6 @@ use \Driver\SQL\Strategy\SetDefaultStrategy;
use \Driver\SQL\Strategy\SetNullStrategy;
use \Driver\SQL\Strategy\UpdateStrategy;
use \Driver\SQL\Constraint\Unique;
use \Driver\SQL\Constraint\PrimaryKey;
use \Driver\SQL\Constraint\ForeignKey;
class PostgreSQL extends SQL {
public function __construct($connectionData) {
@ -203,85 +199,6 @@ class PostgreSQL extends SQL {
return $success;
}
public function executeSelect($select) {
$columns = $this->columnName($select->getColumns());
$tables = $select->getTables();
$params = array();
if (is_null($tables) || empty($tables)) {
return "SELECT $columns";
} else {
$tableStr = $this->tableName($tables);
}
$conditions = $select->getConditions();
if (!empty($conditions)) {
$condition = " WHERE " . $this->buildCondition($conditions, $params);
} else {
$condition = "";
}
$joinStr = "";
$joins = $select->getJoins();
if (!empty($joins)) {
$joinStr = "";
foreach($joins as $join) {
$type = $join->getType();
$joinTable = $this->tableName($join->getTable());
$columnA = $this->columnName($join->getColumnA());
$columnB = $this->columnName($join->getColumnB());
$joinStr .= " $type JOIN $joinTable ON $columnA=$columnB";
}
}
$orderBy = "";
$limit = "";
$offset = "";
$query = "SELECT $columns FROM $tableStr$joinStr$condition$orderBy$limit$offset";
return $this->execute($query, $params, true);
}
public function executeDelete($delete) {
$table = $delete->getTable();
$conditions = $delete->getConditions();
if (!empty($conditions)) {
$condition = " WHERE " . $this->buildCondition($conditions, $params);
} else {
$condition = "";
}
$query = "DELETE FROM \"$table\"$condition";
return $this->execute($query);
}
public function executeTruncate($truncate) {
$table = $truncate->getTable();
return $this->execute("TRUNCATE \"$table\"");
}
public function executeUpdate($update) {
$params = array();
$table = $update->getTable();
$valueStr = array();
foreach($update->getValues() as $key => $val) {
$valueStr[] = "$key=" . $this->addValue($val, $params);
}
$valueStr = implode(",", $valueStr);
$conditions = $update->getConditions();
if (!empty($conditions)) {
$condition = " WHERE " . $this->buildCondition($conditions, $params);
} else {
$condition = "";
}
$query = "UPDATE \"$table\" SET $valueStr$condition";
return $this->execute($query, $params);
}
// UGLY but.. what should i do?
private function createEnum($enumColumn) {
$typeName = $enumColumn->getName();
@ -342,29 +259,6 @@ class PostgreSQL extends SQL {
return "$columnName $type$notNull$defaultValue";
}
protected function getConstraintDefinition($constraint) {
$columnName = $this->columnName($constraint->getColumnName());
if ($constraint instanceof PrimaryKey) {
return "PRIMARY KEY ($columnName)";
} else if ($constraint instanceof Unique) {
return "UNIQUE ($columnName)";
} else if ($constraint instanceof ForeignKey) {
$refTable = $this->tableName($constraint->getReferencedTable());
$refColumn = $this->columnName($constraint->getReferencedColumn());
$strategy = $constraint->onDelete();
$code = "FOREIGN KEY ($columnName) REFERENCES $refTable ($refColumn)";
if ($strategy instanceof SetDefaultStrategy) {
$code .= " ON DELETE SET DEFAULT";
} else if($strategy instanceof SetNullStrategy) {
$code .= " ON DELETE SET NULL";
} else if($strategy instanceof CascadeStrategy) {
$code .= " ON DELETE CASCADE";
}
return $code;
}
}
protected function getValueDefinition($value) {
if (is_numeric($value)) {
return $value;

38
core/Driver/SQL/Query/Select.class.php
View File

@ -8,6 +8,10 @@ class Select extends Query {
private $tables;
private $conditions;
private $joins;
private $orderColumns;
private $sortAscending;
private $limit;
private $offset;
public function __construct($sql, ...$columns) {
parent::__construct($sql);
@ -15,6 +19,10 @@ class Select extends Query {
$this->tables = array();
$this->conditions = array();
$this->joins = array();
$this->orderColumns = array();
$this->limit = 0;
$this->offset = 0;
$this->sortAscending = true;
}
public function from(...$tables) {
@ -37,6 +45,31 @@ class Select extends Query {
return $this;
}
public function orderBy(...$columns) {
$this->orderColumns = $columns;
return $this;
}
public function ascending() {
$this->ascending = true;
return $this;
}
public function descending() {
$this->ascending = false;
return $this;
}
public function limit($limit) {
$this->limit = $limit;
return $this;
}
public function offset($offset) {
$this->offset = $offset;
return $this;
}
public function execute() {
return $this->sql->executeSelect($this);
}
@ -45,6 +78,11 @@ class Select extends Query {
public function getTables() { return $this->tables; }
public function getConditions() { return $this->conditions; }
public function getJoins() { return $this->joins; }
public function isOrderedAscending() { return $this->ascending; }
public function getOrderBy() { return $this->orderColumns; }
public function getLimit() { return $this->limit; }
public function getOffset() { return $this->offset; }
};
?>

116
core/Driver/SQL/SQL.class.php
View File

@ -2,6 +2,10 @@
namespace Driver\SQL;
use \Driver\SQL\Constraint\Unique;
use \Driver\SQL\Constraint\PrimaryKey;
use \Driver\SQL\Constraint\ForeignKey;
abstract class SQL {
protected $lastError;
@ -11,7 +15,7 @@ abstract class SQL {
public function __construct($connectionData) {
$this->connection = NULL;
$this->lastError = 'Not connected';
$this->lastError = 'Unknown Error';
$this->connectionData = $connectionData;
$this->lastInsertId = 0;
}
@ -60,8 +64,6 @@ abstract class SQL {
public abstract function connect();
public abstract function disconnect();
// TODO: pull code duplicates up
// Querybuilder
public function executeCreateTable($createTable) {
$tableName = $this->tableName($createTable->getTableName());
@ -87,13 +89,111 @@ abstract class SQL {
return $this->execute($query);
}
// TODO pull this function up
public abstract function executeInsert($query);
public abstract function executeSelect($query);
public abstract function executeDelete($query);
public abstract function executeTruncate($query);
public abstract function executeUpdate($query);
public function executeSelect($select) {
$columns = $this->columnName($select->getColumns());
$tables = $select->getTables();
$params = array();
if (!$tables) {
return "SELECT $columns";
}
$tables = $this->tableName($tables);
$where = $this->getWhereClause($select->getConditions(), $params);
$joinStr = "";
$joins = $select->getJoins();
if (!empty($joins)) {
foreach($joins as $join) {
$type = $join->getType();
$joinTable = $this->tableName($join->getTable());
$columnA = $this->columnName($join->getColumnA());
$columnB = $this->columnName($join->getColumnB());
$joinStr .= " $type JOIN $joinTable ON $columnA=$columnB";
}
}
$orderBy = "";
$orderColumns = $select->getOrderBy();
if (!empty($orderColumns)) {
$orderBy = " ORDER BY " . $this->columnName($orderColumns);
$orderBy .= ($select->isOrderedAscending() ? " ASC" : " DESC");
}
$limit = ($select->getLimit() > 0 ? (" LIMIT " . $select->getLimit()) : "");
$offset = ($select->getOffset() > 0 ? (" OFFSET " . $select->getOffset()) : "");
$query = "SELECT $columns FROM $tables$joinStr$where$orderBy$limit$offset";
return $this->execute($query, $params, true);
}
public function executeDelete($delete) {
$table = $this->tableName($delete->getTable());
$where = $this->getWhereClause($delete->getConditions(), $params);
$query = "DELETE FROM $table$where";
return $this->execute($query);
}
public function executeTruncate($truncate) {
return $this->execute("TRUNCATE " . $truncate->getTable());
}
public function executeUpdate($update) {
$params = array();
$table = $this->tableName($update->getTable());
$valueStr = array();
foreach($update->getValues() as $key => $val) {
$valueStr[] = "$key=" . $this->addValue($val, $params);
}
$valueStr = implode(",", $valueStr);
$where = $this->getWhereClause($update->getConditions(), $params);
$query = "UPDATE $table SET $valueStr$where";
return $this->execute($query, $params);
}
protected function getWhereClause($conditions, &$params) {
if (!$conditions) {
return "";
} else {
return " WHERE " . $this->buildCondition($conditions, $params);
}
}
protected abstract function getColumnDefinition($column);
protected abstract function getConstraintDefinition($constraint);
public function getConstraintDefinition($constraint) {
$columnName = $this->columnName($constraint->getColumnName());
if ($constraint instanceof PrimaryKey) {
return "PRIMARY KEY ($columnName)";
} else if ($constraint instanceof Unique) {
return "UNIQUE ($columnName)";
} else if ($constraint instanceof ForeignKey) {
$refTable = $this->tableName($constraint->getReferencedTable());
$refColumn = $this->columnName($constraint->getReferencedColumn());
$strategy = $constraint->onDelete();
$code = "FOREIGN KEY ($columnName) REFERENCES $refTable ($refColumn)";
if ($strategy instanceof SetDefaultStrategy) {
$code .= " ON DELETE SET DEFAULT";
} else if($strategy instanceof SetNullStrategy) {
$code .= " ON DELETE SET NULL";
} else if($strategy instanceof CascadeStrategy) {
$code .= " ON DELETE CASCADE";
}
return $code;
} else {
$this->lastError = "Unsupported constraint type: " . get_class($strategy);
}
}
protected abstract function getValueDefinition($val);
protected abstract function addValue($val, &$params);