xref: /plugin/bez/mdl/Entity.php (revision b331b8925cd7271407de49196821e2fbf4786dba) 
1<?php
2
3namespace dokuwiki\plugin\bez\mdl;
4/*
5 * All fields are stored in object as strings.
6 * NULLs are converted to empty string.
7 * If any attribute in object === NULL -> it means that it was not initialized
8 * But we always inserts NULLs instead of empty strings.
9 * https://stackoverflow.com/questions/1267999/mysql-better-to-insert-null-or-empty-string
10 **/
11
12use dokuwiki\plugin\bez\meta\PermissionDeniedException;
13use dokuwiki\plugin\bez\meta\ValidationException;
14
15abstract class Entity {
16
17    /** @var  Model */
18    protected $model;
19
20    /** @var Validator */
21    protected $validator;
22
23    /** @var Acl */
24    protected $acl;
25
26	abstract public static function get_columns();
27
28	public static function get_select_columns() {
29        $class = get_called_class();
30	    return $class::get_columns();
31    }
32
33    public static function get_acl_columns() {
34        $class = get_called_class();
35        return $class::get_select_columns();
36    }
37
38	public function get_assoc($filter=NULL) {
39		$assoc = array();
40
41        $columns = $this->get_select_columns();
42        if ($filter !== NULL) {
43            $columns = array_intersect($columns, $filter);
44        }
45
46		foreach ($columns as $col) {
47			$assoc[$col] = $this->$col;
48		}
49		return $assoc;
50	}
51
52    public function get_table_name() {
53        $class = (new \ReflectionClass($this))->getShortName();
54		return lcfirst($class);
55	}
56
57	public function __get($property) {
58        if (!property_exists($this, $property) || !in_array($property, $this->get_columns())) {
59            throw new \Exception('there is no column: "'.$property. '"" in table: "' . $this->get_table_name() . '"');
60        }
61
62        if ($this->acl_of($property) < BEZ_PERMISSION_VIEW) {
63            throw new PermissionDeniedException();
64        }
65
66        return $this->$property;
67
68	}
69
70    protected function set_property($property, $value) {
71        if ($this->acl_of($property) < BEZ_PERMISSION_CHANGE) {
72            throw new PermissionDeniedException("cannot change field $property");
73        }
74        $this->$property = $value;
75    }
76
77    protected function set_property_array($array) {
78        foreach ($array as $k => $v) {
79            $this->set_property($k, $v);
80        }
81    }
82
83    public function set_data($post) {
84        $val_data = $this->validator->validate($post);
85		if ($val_data === false) {
86			throw new ValidationException($this->get_table_name(), $this->validator->get_errors());
87		}
88
89		$this->set_property_array($val_data);
90    }
91
92    public function changable_fields($filter=NULL) {
93       $fields = $this->acl->get_list();
94
95       if ($filter !== NULL) {
96           $fields = array_filter($fields, function ($k) use ($filter) {
97                return in_array($k, $filter);
98           }, ARRAY_FILTER_USE_KEY);
99       }
100
101       return array_keys(array_filter($fields, function ($var) {
102           return $var >= BEZ_PERMISSION_CHANGE;
103       }));
104    }
105
106    public function can_be_null($field) {
107	    $rule = $this->validator->get_rule($field);
108	    $null = $rule[1];
109	    if (strtolower($null) == 'null') {
110	        return true;
111        }
112
113        return false;
114    }
115
116    public function __construct($model) {
117        $this->model = $model;
118        $this->validator = new Validator($this->model);
119
120        $this->acl = new Acl($this->model->get_level(), $this->get_acl_columns());
121    }
122
123    public function acl_of($field) {
124        return $this->acl->acl_of($field);
125    }
126
127}
128