xref: /plugin/struct/meta/Value.php (revision 303fac14495808141e56247f6effd423b645a014) 
1<?php
2
3namespace plugin\struct\meta;
4
5/**
6 * Class Value
7 *
8 * Holds the value for a single "cell". That value may be an array for multi value columns
9 *
10 * @package plugin\struct\meta
11 */
12class Value {
13
14    /** @var Column */
15    protected $column;
16
17    /** @var  array|int|string */
18    protected $value;
19
20    /**
21     * Value constructor.
22     *
23     * @param Column $column
24     * @param array|int|string $value
25     */
26    public function __construct(Column $column, $value) {
27        $this->column = $column;
28        $this->setValue($value);
29    }
30
31    /**
32     * @return Column
33     */
34    public function getColumn() {
35        return $this->column;
36    }
37
38    /**
39     * @return array|int|string
40     */
41    public function getValue() {
42        return $this->value;
43    }
44
45    /**
46     * Allows overwriting the current value
47     *
48     * Cleans the value(s) of empties
49     *
50     * @param array|int|string $value
51     */
52    public function setValue($value) {
53        if($this->column->isMulti() && !is_array($value)) {
54                $value = array($value);
55        }
56
57        if(is_array($value)) {
58            // remove all blanks
59            $value = array_map('trim', $value);
60            $value = array_filter($value, array($this, 'filter'));
61            $value = array_values($value); // reset keys
62
63            if(!$this->column->isMulti()) {
64                $value = (string) array_shift($value);
65            }
66        } else {
67            $value = trim($value);
68        }
69
70        $this->value = $value;
71    }
72
73    /**
74     * Render the value using the given renderer and mode
75     *
76     * automativally picks the right mechanism depending on multi or single value
77     *
78     * values are only rendered when there is a value
79     *
80     * @param \Doku_Renderer $R
81     * @param string $mode
82     * @return bool
83     */
84    public function render(\Doku_Renderer $R, $mode) {
85        if($this->column->isMulti()) {
86            if(count($this->value)) {
87                return $this->column->getType()->renderMultiValue($this->value, $R, $mode);
88            }
89        } else {
90            if($this->value !== '') {
91                return $this->column->getType()->renderValue($this->value, $R, $mode);
92            }
93        }
94        return true;
95    }
96
97    /**
98     * Return the value editor for this value field
99     *
100     * @param string $name The field name to use in the editor
101     * @return string The HTML for the editor
102     */
103    public function getValueEditor($name) {
104        if($this->column->isMulti()) {
105            return $this->column->getType()->multiValueEditor($name, $this->value);
106        } else {
107            return $this->column->getType()->valueEditor($name, $this->value);
108        }
109    }
110
111    /**
112     * Filter callback to strip empty values
113     *
114     * @param string $input
115     * @return bool
116     */
117    public function filter($input) {
118        return  '' !== ((string) $input);
119    }
120}
121