445 lines
11 KiB
PHP
445 lines
11 KiB
PHP
<?php
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namespace PicoDb;
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class Table
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{
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const SORT_ASC = 'ASC';
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const SORT_DESC = 'DESC';
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private $table_name = '';
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private $sql_limit = '';
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private $sql_offset = '';
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private $sql_order = '';
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private $joins = array();
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private $conditions = array();
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private $or_conditions = array();
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private $is_or_condition = false;
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private $columns = array();
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private $values = array();
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private $distinct = false;
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private $group_by = array();
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private $db;
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public function __construct(Database $db, $table_name)
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{
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$this->db = $db;
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$this->table_name = $table_name;
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return $this;
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}
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public function save(array $data)
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{
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if (! empty($this->conditions)) {
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return $this->update($data);
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}
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else {
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return $this->insert($data);
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}
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}
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/**
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* Update
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*
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* Note: Do not use `rowCount()` the behaviour is different across drivers
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*/
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public function update(array $data)
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{
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$columns = array();
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$values = array();
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foreach ($data as $column => $value) {
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$columns[] = $this->db->escapeIdentifier($column).'=?';
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$values[] = $value;
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}
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foreach ($this->values as $value) {
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$values[] = $value;
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}
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$sql = sprintf(
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'UPDATE %s SET %s %s',
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$this->db->escapeIdentifier($this->table_name),
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implode(', ', $columns),
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$this->conditions()
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);
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$result = $this->db->execute($sql, $values);
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return $result !== false;
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}
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public function insert(array $data)
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{
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$columns = array();
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foreach ($data as $column => $value) {
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$columns[] = $this->db->escapeIdentifier($column);
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}
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$sql = sprintf(
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'INSERT INTO %s (%s) VALUES (%s)',
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$this->db->escapeIdentifier($this->table_name),
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implode(', ', $columns),
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implode(', ', array_fill(0, count($data), '?'))
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);
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return false !== $this->db->execute($sql, array_values($data));
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}
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public function remove()
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{
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$sql = sprintf(
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'DELETE FROM %s %s',
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$this->db->escapeIdentifier($this->table_name),
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$this->conditions()
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);
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$result = $this->db->execute($sql, $this->values);
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return $result !== false && $result->rowCount() > 0;
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}
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public function listing($key, $value)
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{
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$this->columns($key, $value);
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$listing = array();
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$results = $this->findAll();
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if ($results) {
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foreach ($results as $result) {
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$listing[$result[$key]] = $result[$value];
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}
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}
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return $listing;
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}
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public function findAll()
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{
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$rq = $this->db->execute($this->buildSelectQuery(), $this->values);
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if (false === $rq) return false;
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return $rq->fetchAll(\PDO::FETCH_ASSOC);
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}
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public function findAllByColumn($column)
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{
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$this->columns = array($column);
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$rq = $this->db->execute($this->buildSelectQuery(), $this->values);
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if (false === $rq) return false;
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return $rq->fetchAll(\PDO::FETCH_COLUMN, 0);
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}
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public function findOne()
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{
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$this->limit(1);
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$result = $this->findAll();
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return isset($result[0]) ? $result[0] : null;
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}
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public function findOneColumn($column)
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{
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$this->limit(1);
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$this->columns = array($column);
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$rq = $this->db->execute($this->buildSelectQuery(), $this->values);
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if (false === $rq) return false;
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return $rq->fetchColumn();
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}
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public function buildSelectQuery()
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{
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foreach ($this->columns as $key => $value) {
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$this->columns[$key] = $this->db->escapeIdentifier($value);
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}
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return sprintf(
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'SELECT %s %s FROM %s %s %s %s %s %s %s',
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$this->distinct ? 'DISTINCT' : '',
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empty($this->columns) ? '*' : implode(', ', $this->columns),
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$this->db->escapeIdentifier($this->table_name),
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implode(' ', $this->joins),
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$this->conditions(),
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empty($this->group_by) ? '' : 'GROUP BY '.implode(', ', $this->group_by),
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$this->sql_order,
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$this->sql_limit,
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$this->sql_offset
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);
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}
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public function count()
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{
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$sql = sprintf(
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'SELECT COUNT(*) FROM %s'.$this->conditions().$this->sql_order.$this->sql_limit.$this->sql_offset,
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$this->db->escapeIdentifier($this->table_name)
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);
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$rq = $this->db->execute($sql, $this->values);
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if (false === $rq) return false;
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$result = $rq->fetchColumn();
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return $result ? (int) $result : 0;
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}
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public function join($table, $foreign_column, $local_column, $local_table = null)
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{
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$this->joins[] = sprintf(
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'LEFT JOIN %s ON %s=%s',
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$this->db->escapeIdentifier($table),
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$this->db->escapeIdentifier($table).'.'.$this->db->escapeIdentifier($foreign_column),
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$this->db->escapeIdentifier($local_table ?: $this->table_name).'.'.$this->db->escapeIdentifier($local_column)
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);
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return $this;
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}
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public function conditions()
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{
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if (! empty($this->conditions)) {
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return ' WHERE '.implode(' AND ', $this->conditions);
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}
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else {
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return '';
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}
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}
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public function addCondition($sql)
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{
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if ($this->is_or_condition) {
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$this->or_conditions[] = $sql;
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}
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else {
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$this->conditions[] = $sql;
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}
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}
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public function beginOr()
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{
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$this->is_or_condition = true;
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$this->or_conditions = array();
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return $this;
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}
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public function closeOr()
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{
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$this->is_or_condition = false;
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if (! empty($this->or_conditions)) {
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$this->conditions[] = '('.implode(' OR ', $this->or_conditions).')';
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}
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return $this;
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}
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public function orderBy($column, $order = self::SORT_ASC)
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{
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$order = strtoupper($order);
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$order = $order === self::SORT_ASC || $order === self::SORT_DESC ? $order : self::SORT_ASC;
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if ($this->sql_order === '') {
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$this->sql_order = ' ORDER BY '.$this->db->escapeIdentifier($column).' '.$order;
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}
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else {
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$this->sql_order .= ', '.$this->db->escapeIdentifier($column).' '.$order;
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}
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return $this;
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}
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public function asc($column)
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{
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if ($this->sql_order === '') {
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$this->sql_order = ' ORDER BY '.$this->db->escapeIdentifier($column).' '.self::SORT_ASC;
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}
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else {
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$this->sql_order .= ', '.$this->db->escapeIdentifier($column).' '.self::SORT_ASC;
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}
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return $this;
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}
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public function desc($column)
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{
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if ($this->sql_order === '') {
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$this->sql_order = ' ORDER BY '.$this->db->escapeIdentifier($column).' '.self::SORT_DESC;
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}
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else {
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$this->sql_order .= ', '.$this->db->escapeIdentifier($column).' '.self::SORT_DESC;
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}
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return $this;
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}
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public function limit($value)
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{
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if (! is_null($value)) $this->sql_limit = ' LIMIT '.(int) $value;
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return $this;
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}
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public function offset($value)
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{
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if (! is_null($value)) $this->sql_offset = ' OFFSET '.(int) $value;
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return $this;
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}
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public function groupBy()
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{
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$this->group_by = \func_get_args();
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return $this;
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}
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public function columns()
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{
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$this->columns = \func_get_args();
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return $this;
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}
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public function distinct()
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{
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$this->columns = \func_get_args();
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$this->distinct = true;
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return $this;
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}
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public function __call($name, array $arguments)
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{
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$column = $arguments[0];
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$sql = '';
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switch (strtolower($name)) {
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case 'in':
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if (isset($arguments[1]) && is_array($arguments[1]) && ! empty($arguments[1])) {
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$sql = sprintf(
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'%s IN (%s)',
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$this->db->escapeIdentifier($column),
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implode(', ', array_fill(0, count($arguments[1]), '?'))
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);
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}
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break;
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case 'notin':
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if (isset($arguments[1]) && is_array($arguments[1]) && ! empty($arguments[1])) {
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$sql = sprintf(
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'%s NOT IN (%s)',
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$this->db->escapeIdentifier($column),
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implode(', ', array_fill(0, count($arguments[1]), '?'))
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);
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}
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break;
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case 'like':
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$sql = sprintf('%s LIKE ?', $this->db->escapeIdentifier($column));
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break;
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case 'eq':
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case 'equal':
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case 'equals':
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$sql = sprintf('%s = ?', $this->db->escapeIdentifier($column));
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break;
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case 'neq':
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case 'notequal':
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case 'notequals':
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$sql = sprintf('%s != ?', $this->db->escapeIdentifier($column));
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break;
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case 'gt':
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case 'greaterthan':
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$sql = sprintf('%s > ?', $this->db->escapeIdentifier($column));
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break;
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case 'lt':
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case 'lowerthan':
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$sql = sprintf('%s < ?', $this->db->escapeIdentifier($column));
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break;
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case 'gte':
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case 'greaterthanorequals':
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$sql = sprintf('%s >= ?', $this->db->escapeIdentifier($column));
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break;
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case 'lte':
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case 'lowerthanorequals':
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$sql = sprintf('%s <= ?', $this->db->escapeIdentifier($column));
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break;
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case 'isnull':
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$sql = sprintf('%s IS NULL', $this->db->escapeIdentifier($column));
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break;
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case 'notnull':
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$sql = sprintf('%s IS NOT NULL', $this->db->escapeIdentifier($column));
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break;
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}
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if ($sql !== '') {
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$this->addCondition($sql);
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if (isset($arguments[1])) {
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if (is_array($arguments[1])) {
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foreach ($arguments[1] as $value) {
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$this->values[] = $value;
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}
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}
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else {
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$this->values[] = $arguments[1];
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}
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}
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}
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return $this;
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}
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}
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