jcs.org
a tiny mvc framework for php using php-activerecord
1<?php
2/*
3 <form>-building helper functions
4*/
5
6namespace HalfMoon;
7
8class FormHelperCommon extends Helper {
9 public $controller = null;
10 public $form_object = null;
11 public $html_helper = null;
12 public $form_prefix = null;
13
14 public function __construct() {
15 $this->html_helper = new HtmlHelper;
16 }
17
18 /* the guts of form_for() and form_tag() */
19 protected function output_form_around_closure($url_or_obj,
20 $options = array(), \Closure $form_content) {
21 if (!isset($options["method"]))
22 $options["method"] = "post";
23
24 if (!empty($options["multipart"])) {
25 unset($options["multipart"]);
26 $options["enctype"] = "multipart/form-data";
27 }
28
29 if (!empty($options["form_prefix"])) {
30 $this->form_prefix = $options["form_prefix"];
31 unset($options["form_prefix"]);
32 }
33
34 print "<form"
35 . $this->options_to_s($options)
36 . " action=\""
37 . h($this->html_helper->link_from_obj_or_string($url_or_obj))
38 . "\""
39 . ">";
40
41 if (strtolower($options["method"]) != "get")
42 print "<input"
43 . " name=\"authenticity_token\""
44 . " type=\"hidden\""
45 . " value=\"" . h($this->controller->form_authenticity_token())
46 . "\""
47 . " />";
48
49 print Utils::to_s($this, $form_content, $this->controller);
50
51 print "</form>";
52
53 $this->form_object = null;
54
55 return $this;
56 }
57
58 /* generate <option> tags for an array of options for a <select> */
59 protected function options_for_select($choices, $selected) {
60 $str = "";
61 $is_assoc = Utils::is_assoc($choices);
62 $array_of_arrays = (bool)(!$is_assoc && is_array($choices[0]));
63
64 foreach ($choices as $key => $val) {
65 if ($array_of_arrays) {
66 if (Utils::is_assoc($val)) {
67 $key = Utils::A(array_keys($val), 0);
68 $val = Utils::A(array_values($val), 0);
69 } else {
70 $key = $val[0];
71 $val = $val[1];
72 }
73 } elseif (!$is_assoc)
74 $key = $val;
75
76 if ($selected === $key)
77 $is_selected = true;
78 elseif (is_numeric($selected) && is_numeric($key) &&
79 ($selected == $key))
80 $is_selected = true;
81 /* TODO: handle 0=false, 1=true, true="true", etc. */
82 else
83 $is_selected = false;
84
85 $str .= "<option value=\"" . raw_or_h($key) . "\""
86 . ($is_selected ? " selected" : "")
87 . ">" . raw_or_h($val) . "</option>";
88 }
89
90 return $str;
91 }
92
93 /* convert an array of options to html element options */
94 protected function options_to_s($options) {
95 if (!is_array($options))
96 throw new HalfMoonException("invalid argument passed; expected "
97 . "options array");
98
99 $opts_s = "";
100 foreach ($options as $k => $v)
101 $opts_s .= " " . $k . "=\"" . raw_or_h($v) . "\"";
102
103 return $opts_s;
104 }
105
106 /* generate <option> tags for each identifier in php's timezone list */
107 protected function time_zone_options_for_select($selected) {
108 $str = "";
109
110 foreach (\DateTimeZone::listIdentifiers() as $tz)
111 $str .= "<option value=\"" . $tz . "\""
112 . (strtolower($selected) === strtolower($tz) ?
113 " selected" : "") . ">" . h($tz) . "</option>";
114
115 return $str;
116 }
117
118 /* for each attribute in a form_for() object that has errors, output a div
119 * around it that should be styled to stand out */
120 protected function wrap_field_with_errors($field, $field_html) {
121 if (!$this->form_object)
122 throw new HalfMoonExceptions("wrap_field_with_errors called when "
123 . "no form object");
124
125 if ($this->form_object->errors &&
126 $this->form_object->errors->on($field))
127 return "<div class=\"fieldWithErrors\">" . $field_html . "</div>";
128 else
129 return $field_html;
130 }
131}
132
133?>