Database abstraction

core/Driver/SQL/Query/CreateTable.class.php

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+<?php
+
+namespace Driver\SQL\Query;
+
+use Driver\SQL\Column\SerialColumn;
+use Driver\SQL\Column\StringColumn;
+use Driver\SQL\Column\IntColumn;
+use Driver\SQL\Column\DateTimeColumn;
+use Driver\SQL\Column\EnumColumn;
+use Driver\SQL\Column\BoolColumn;
+use Driver\SQL\Column\JsonColumn;
+
+use Driver\SQL\Constraint\PrimaryKey;
+use Driver\SQL\Constraint\Unique;
+use Driver\SQL\Constraint\ForeignKey;
+
+class CreateTable extends Query {
+
+  private $tableName;
+  private $columns;
+  private $constraints;
+  private $ifNotExists;
+
+  public function __construct($sql, $name) {
+    parent::__construct($sql);
+    $this->tableName = $name;
+    $this->columns = array();
+    $this->constraints = array();
+    $this->ifNotExists = false;
+  }
+
+  public function addSerial($name) {
+    $this->columns[$name] = new SerialColumn($name);
+    return $this;
+  }
+
+  public function addString($name, $maxSize=NULL, $nullable=false, $defaultValue=NULL) {
+    $this->columns[$name] = new StringColumn($name, $maxSize, $nullable, $defaultValue);
+    return $this;
+  }
+
+  public function addDateTime($name, $nullable=false, $defaultNow=false) {
+    $this->columns[$name] = new DateTimeColumn($name, $nullable, $defaultNow);
+    return $this;
+  }
+
+  public function addInt($name, $nullable=false, $defaultValue=NULL) {
+    $this->columns[$name] = new IntColumn($name, $nullable, $defaultValue);
+    return $this;
+  }
+
+  public function addBool($name, $defaultValue=false) {
+    $this->columns[$name] = new BoolColumn($name, $defaultValue);
+    return $this;
+  }
+
+  public function addJson($name, $nullable=false, $defaultValue=NULL) {
+    $this->columns[$name] = new JsonColumn($name, $nullable, $defaultValue);
+    return $this;
+  }
+
+  public function addEnum($name, $values, $nullable=false, $defaultValue=NULL) {
+    $this->columns[$name] = new EnumColumn($name, $values, $nullable, $defaultValue);
+    return $this;
+  }
+
+  public function primaryKey(...$names) {
+    $this->constraints[] = new PrimaryKey($names);
+    return $this;
+  }
+
+  public function unique(...$names) {
+    $this->constraints[] = new Unique($names);
+    return $this;
+  }
+
+  public function foreignKey($name, $refTable, $refColumn, $strategy = NULL) {
+    $this->constraints[] = new ForeignKey($name, $refTable, $refColumn, $strategy);
+    return $this;
+  }
+
+  public function onlyIfNotExists() {
+    $this->ifNotExists = true;
+    return $this;
+  }
+
+  public function execute() {
+    return $this->sql->executeCreateTable($this);
+  }
+
+  public function ifNotExists() { return $this->ifNotExists; }
+  public function getTableName() { return $this->tableName; }
+  public function getColumns() { return $this->columns; }
+  public function getConstraints() { return $this->constraints; }
+};
+
+?>

core/Driver/SQL/Query/Delete.class.php

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+<?php
+
+namespace Driver\SQL\Query;
+
+class Delete extends Query {
+
+  private $table;
+  private $conditions;
+
+  public function __construct($sql, $table) {
+    parent::__construct($sql);
+    $this->table = $table;
+    $this->conditions = array();
+  }
+
+  public function where(...$conditions) {
+    $this->conditions = array_merge($this->conditions, $conditions);
+    return $this;
+  }
+
+  public function execute() {
+    return $this->sql->executeDelete($this);
+  }
+
+  public function getTable() { return $this->table; }
+  public function getConditions() { return $this->conditions; }
+};
+
+?>

core/Driver/SQL/Query/Insert.class.php

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+<?php
+
+namespace Driver\SQL\Query;
+
+class Insert extends Query {
+
+  private $tableName;
+  private $columns;
+  private $rows;
+  private $onDuplicateKey;
+
+  public function __construct($sql, $name, $columns=array()) {
+    parent::__construct($sql);
+    $this->tableName = $name;
+    $this->columns = $columns;
+    $this->rows = array();
+    $this->onDuplicateKey = NULL;
+  }
+
+  public function addRow(...$values) {
+    $this->rows[] = $values;
+    return $this;
+  }
+
+  public function onDuplicateKeyStrategy($strategy) {
+    $this->onDuplicateKey = $strategy;
+    return $this;
+  }
+
+  public function execute() {
+    return $this->sql->executeInsert($this);
+  }
+
+  public function getTableName() { return $this->tableName; }
+  public function getColumns() { return $this->columns; }
+  public function getRows() { return $this->rows; }
+  public function onDuplicateKey() { return $this->onDuplicateKey; }
+};
+
+?>

core/Driver/SQL/Query/Query.class.php

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+<?php
+
+namespace Driver\SQL\Query;
+
+abstract class Query {
+
+  protected $sql;
+
+  public function __construct($sql) {
+    $this->sql = $sql;
+  }
+
+  public abstract function execute();
+
+};
+
+?>

core/Driver/SQL/Query/Select.class.php

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+<?php
+
+namespace Driver\SQL\Query;
+
+class Select extends Query {
+
+  private $columns;
+  private $tables;
+  private $conditions;
+  private $joins;
+
+  public function __construct($sql, ...$columns) {
+    parent::__construct($sql);
+    $this->columns = (!empty($columns) && is_array($columns[0])) ? $columns[0] : $columns;
+    $this->tables = array();
+    $this->conditions = array();
+    $this->joins = array();
+  }
+
+  public function from(...$tables) {
+    $this->tables = array_merge($this->tables, $tables);
+    return $this;
+  }
+
+  public function where(...$conditions) {
+    $this->conditions = array_merge($this->conditions, $conditions);
+    return $this;
+  }
+
+  public function innerJoin($table, $columnA, $columnB) {
+    $this->joins[] = new \Driver\SQL\Join("INNER", $table, $columnA, $columnB);
+    return $this;
+  }
+
+  public function leftJoin($table, $columnA, $columnB) {
+    $this->joins[] = new \Driver\SQL\Join("LEFT", $table, $columnA, $columnB);
+    return $this;
+  }
+
+  public function execute() {
+    return $this->sql->executeSelect($this);
+  }
+
+  public function getColumns() { return $this->columns; }
+  public function getTables() { return $this->tables; }
+  public function getConditions() { return $this->conditions; }
+  public function getJoins() { return $this->joins; }
+};
+
+?>

core/Driver/SQL/Query/Truncate.class.php

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+<?php
+
+namespace Driver\SQL\Query;
+
+class Truncate extends Query {
+
+  private $tableName;
+
+  public function __construct($sql, $name) {
+    parent::__construct($sql);
+    $this->tableName = $name;
+  }
+
+  public function execute() {
+    return $this->sql->executeTruncate($this);
+  }
+
+  public function getTableName() { return $this->tableName; }
+};
+
+?>

core/Driver/SQL/Query/Update.class.php

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+<?php
+
+namespace Driver\SQL\Query;
+
+class Update extends Query {
+
+  private $values;
+  private $table;
+  private $conditions;
+
+  public function __construct($sql, $table) {
+    parent::__construct($sql);
+    $this->values = array();
+    $this->table = $table;
+    $this->conditions = array();
+  }
+
+  public function where(...$conditions) {
+    $this->conditions = array_merge($this->conditions, $conditions);
+    return $this;
+  }
+
+  public function set($key, $val) {
+    $this->values[$key] = $val;
+    return $this;
+  }
+
+  public function execute() {
+    return $this->sql->executeUpdate($this);
+  }
+
+  public function getTable() { return $this->table; }
+  public function getConditions() { return $this->conditions; }
+  public function getValues() { return $this->values; }
+};
+
+?>