361 lines
12 KiB
PHP
361 lines
12 KiB
PHP
<?php
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namespace ZM;
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require_once('database.php');
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$object_cache = array();
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class ZM_Object {
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public function __construct($IdOrRow = NULL) {
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$class = get_class($this);
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$row = NULL;
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if ( $IdOrRow ) {
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if ( is_integer($IdOrRow) or ctype_digit($IdOrRow) ) {
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$table = $class::$table;
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$row = dbFetchOne("SELECT * FROM `$table` WHERE `Id`=?", NULL, array($IdOrRow));
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if ( !$row ) {
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Error("Unable to load $class record for Id=$IdOrRow");
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}
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} elseif ( is_array($IdOrRow) ) {
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$row = $IdOrRow;
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}
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if ( $row ) {
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global $object_cache;
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if ( ! isset($object_cache[$class]) ) {
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$object_cache[$class] = array();
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}
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$cache = &$object_cache[$class];
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foreach ($row as $k => $v) {
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$this->{$k} = $v;
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}
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$cache[$row['Id']] = $this;
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}
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} # end if isset($IdOrRow)
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} # end function __construct
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public function __call($fn, array $args){
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$type = (array_key_exists($fn, $this->defaults) && is_array($this->defaults[$fn])) ? $this->defaults[$fn]['type'] : 'scalar';
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if ( count($args) ) {
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if ( $type == 'set' and is_array($args[0]) )
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$this->{$fn} = implode(',', $args[0]);
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else
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$this->{$fn} = $args[0];
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}
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if ( property_exists($this, $fn) ) {
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return $this->{$fn};
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} else {
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if ( array_key_exists($fn, $this->defaults) ) {
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if ( is_array($this->defaults[$fn]) ) {
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return $this->defaults[$fn]['default'];
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}
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return $this->defaults[$fn];
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} else {
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$backTrace = debug_backtrace();
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Warning("Unknown function call Object->$fn from ".print_r($backTrace,true));
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}
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}
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}
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public static function _find($class, $parameters = null, $options = null ) {
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$table = $class::$table;
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$filters = array();
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$sql = "SELECT * FROM `$table` ";
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$values = array();
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if ( $parameters ) {
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$fields = array();
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$sql .= 'WHERE ';
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foreach ( $parameters as $field => $value ) {
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if ( $value == null ) {
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$fields[] = '`'.$field.'` IS NULL';
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} else if ( is_array($value) ) {
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$func = function(){return '?';};
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$fields[] = '`'.$field.'` IN ('.implode(',', array_map($func, $value)). ')';
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$values += $value;
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} else {
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$fields[] = '`'.$field.'`=?';
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$values[] = $value;
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}
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}
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$sql .= implode(' AND ', $fields );
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}
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if ( $options ) {
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if ( isset($options['order']) ) {
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$sql .= ' ORDER BY ' . $options['order'];
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}
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if ( isset($options['limit']) ) {
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if ( is_integer($options['limit']) or ctype_digit($options['limit']) ) {
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$sql .= ' LIMIT ' . $options['limit'];
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} else {
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$backTrace = debug_backtrace();
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Error('Invalid value for limit('.$options['limit'].') passed to '.get_class()."::find from ".print_r($backTrace,true));
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return array();
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}
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}
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}
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$rows = dbFetchAll($sql, NULL, $values);
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$results = array();
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if ( $rows ) {
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foreach ( $rows as $row ) {
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array_push($results , new $class($row));
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}
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}
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return $results;
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} # end public function _find()
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public static function _find_one($class, $parameters = array(), $options = array() ) {
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global $object_cache;
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if ( ! isset($object_cache[$class]) ) {
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$object_cache[$class] = array();
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}
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$cache = &$object_cache[$class];
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if (
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( count($parameters) == 1 ) and
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isset($parameters['Id']) and
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isset($cache[$parameters['Id']]) ) {
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return $cache[$parameters['Id']];
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}
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$options['limit'] = 1;
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$results = ZM_Object::_find($class, $parameters, $options);
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if ( ! sizeof($results) ) {
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return;
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}
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return $results[0];
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}
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public static function Objects_Indexed_By_Id($class) {
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$results = array();
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foreach ( ZM_Object::_find($class, null, array('order'=>'lower(Name)')) as $Object ) {
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$results[$Object->Id()] = $Object;
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}
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return $results;
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}
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public function to_json() {
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$json = array();
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foreach ($this->defaults as $key => $value) {
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if ( is_callable(array($this, $key)) ) {
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$json[$key] = $this->$key();
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} else if ( property_exists($this, $key) ) {
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$json[$key] = $this->{$key};
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} else {
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$json[$key] = $this->defaults[$key];
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}
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}
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return json_encode($json);
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}
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public function set($data) {
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foreach ( $data as $k => $v ) {
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if ( method_exists($this, $k) ) {
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$this->{$k}($v);
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} else {
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if ( is_array($v) ) {
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# perhaps should turn into a comma-separated string
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$this->{$k} = implode(',', $v);
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} else if ( is_string($v) ) {
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if ( 0 ) {
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# Remarking this out. We are setting a value, not asking for a default to be set.
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# So don't do defaults here, do them somewhere else
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if ( ($v == null) and array_key_exists($k, $this->defaults) ) {
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Logger::Debug("$k => Have default for $v: ");
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if ( is_array($this->defaults[$k]) ) {
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$this->{$k} = $this->defaults[$k]['default'];
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} else {
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$this->{$k} = $this->defaults[$k];
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Logger::Debug("$k => Have default for $v: " . $this->{$k});
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}
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} else {
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$this->{$k} = trim($v);
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}
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} else {
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$this->{$k} = trim($v);
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}
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} else if ( is_integer($v) ) {
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$this->{$k} = $v;
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} else if ( is_bool($v) ) {
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$this->{$k} = $v;
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} else if ( is_null($v) ) {
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$this->{$k} = $v;
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} else {
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Error("Unknown type $k => $v of var " . gettype($v));
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$this->{$k} = $v;
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}
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} # end if method_exists
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} # end foreach $data as $k=>$v
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} # end function set($data)
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/* types is an array of fields telling use that the input might be a checkbox so not present in the input, but therefore has a value
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*/
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public function changes($new_values, $defaults=null) {
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$changes = array();
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if ( $defaults ) {
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foreach ( $defaults as $field => $type ) {
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if ( isset($new_values[$field]) ) {
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# Will have already been handled above
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continue;
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}
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if ( isset($this->defaults[$field]) ) {
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if ( is_array($this->defaults[$field]) ) {
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$new_values[$field] = $this->defaults[$field]['default'];
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} else {
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$new_values[$field] = $this->defaults[$field];
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}
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}
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} # end foreach default
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}
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foreach ( $new_values as $field => $value ) {
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if ( method_exists($this, $field) ) {
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$old_value = $this->$field();
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Logger::Debug("Checking method $field () ".print_r($old_value,true).' => ' . print_r($value,true));
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if ( is_array($old_value) ) {
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$diff = array_recursive_diff($old_value, $value);
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Logger::Debug("Checking method $field () diff isi ".print_r($diff,true));
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if ( count($diff) ) {
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$changes[$field] = $value;
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}
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} else if ( $this->$field() != $value ) {
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$changes[$field] = $value;
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}
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} else if ( property_exists($this, $field) ) {
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$type = (array_key_exists($field, $this->defaults) && is_array($this->defaults[$field])) ? $this->defaults[$field]['type'] : 'scalar';
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Logger::Debug("Checking field $field => current ".
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(is_array($this->{$field}) ? implode(',',$this->{$field}) : $this->{$field}) . ' ?= ' .
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(is_array($value) ? implode(',', $value) : $value)
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);
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if ( $type == 'set' ) {
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$old_value = is_array($this->$field) ? $this->$field : explode(',', $this->$field);
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$new_value = is_array($value) ? $value : explode(',', $value);
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$diff = array_recursive_diff($old_value, $new_value);
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Logger::Debug("Checking value $field () diff isi ".print_r($diff,true));
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if ( count($diff) ) {
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$changes[$field] = $new_value;
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}
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# Input might be a command separated string, or an array
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} else {
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if ( $this->{$field} != $value ) {
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$changes[$field] = $value;
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}
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}
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} else if ( array_key_exists($field, $this->defaults) ) {
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if ( is_array($this->defaults[$field]) ) {
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$default = $this->defaults[$field]['default'];
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} else {
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$default = $this->defaults[$field];
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}
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Logger::Debug("Checking default $field => ".
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( is_array($default) ? implode(',',$default) : $default).
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' ' .
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( is_array($value) ? implode(',', $value) : $value)
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);
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if ( $default != $value ) {
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$changes[$field] = $value;
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}
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}
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#if ( (!array_key_exists($field, $this)) or ( $this->{$field} != $new_values[$field] ) ) {
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#Logger::Debug("Checking default $field => $default_value changes becaause" . $new_values[$field].' != '.$new_values[$field]);
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#$changes[$field] = $new_values[$field];
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##} else if {
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#Logger::Debug("Checking default $field => $default_value changes becaause " . $new_values[$field].' != '.$new_values[$field]);
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##array_push( $changes, [$field=>$defaults[$field]] );
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#}
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#} else {
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#Logger::Debug("Checking default $field => $default_value not in new_values");
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#}
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} # end foreach newvalue
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return $changes;
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} # end public function changes
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public function save($new_values = null) {
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$class = get_class($this);
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$table = $class::$table;
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if ( $new_values ) {
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//Logger::Debug("New values" . print_r($new_values, true));
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$this->set($new_values);
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}
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# Set defaults. Note that we only replace "" with null, not other values
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# because for example if we want to clear TimestampFormat, we clear it, but the default is a string value
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foreach ( $this->defaults as $field => $default ) {
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if ( (!array_key_exists($field, $this)) or ($this->{$field} == '') ) {
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if ( is_array($default) ) {
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$this->{$field} = $default['default'];
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} else if ( $default == null ) {
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$this->{$field} = $default;
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}
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}
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}
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$fields = array_filter(
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$this->defaults,
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function($v) {
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return !(
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is_array($v)
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and
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isset($v['do_not_update'])
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and
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$v['do_not_update']
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);
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}
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);
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$fields = array_keys($fields);
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if ( $this->Id() ) {
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$sql = 'UPDATE '.$table.' SET '.implode(', ', array_map(function($field) {return '`'.$field.'`=?';}, $fields)).' WHERE Id=?';
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$values = array_map(function($field){ return $this->{$field};}, $fields);
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$values[] = $this->{'Id'};
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if ( dbQuery($sql, $values) )
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return true;
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} else {
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unset($fields['Id']);
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$sql = 'INSERT INTO '.$table.
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' ('.implode(', ', array_map(function($field) {return '`'.$field.'`';}, $fields)).
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') VALUES ('.
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implode(', ', array_map(function($field){return '?';}, $fields)).')';
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$values = array_map(function($field){return $this->$field();}, $fields);
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if ( dbQuery($sql, $values) ) {
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$this->{'Id'} = dbInsertId();
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return true;
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}
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}
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return false;
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} // end function save
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public function delete() {
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$class = get_class($this);
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$table = $class::$table;
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dbQuery("DELETE FROM $table WHERE Id=?", array($this->{'Id'}));
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if ( isset($object_cache[$class]) and isset($object_cache[$class][$this->{'Id'}]) )
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unset($object_cache[$class][$this->{'Id'}]);
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}
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public function lock() {
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$class = get_class($this);
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$table = $class::$table;
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$row = dbFetchOne("SELECT * FROM `$table` WHERE `Id`=?", NULL, array($this->Id()));
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if ( !$row ) {
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Error("Unable to lock $class record for Id=".$this->Id());
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}
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}
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} # end class Object
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?>
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