|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
/** |
|
4
|
|
|
* This {@link DataExtension} allows you to declare arbitrary input fields in |
|
5
|
|
|
* your getCMSFields() methods without them ever going near an equivalent DBField. |
|
6
|
|
|
* |
|
7
|
|
|
* The SilverStripe default gives you one DBField for every input field declared |
|
8
|
|
|
* in getCMSFields(). This extension however allows you to use a single blob |
|
9
|
|
|
* of JSON, stored in a single {@link JSONTextField} and manage each key=>value pair |
|
10
|
|
|
* from individual input fields without needing to declare equivalent or further |
|
11
|
|
|
* database fields. All you need to do is add a `$json_field_map` static to |
|
12
|
|
|
* your model (See below). |
|
13
|
|
|
* |
|
14
|
|
|
* Notes: |
|
15
|
|
|
* - Untested on non CHAR DB field-types (v0.8) |
|
16
|
|
|
* - Only works for single dimensional JSON data |
|
17
|
|
|
* |
|
18
|
|
|
* <code> |
|
19
|
|
|
* private static $db = [ |
|
20
|
|
|
* 'TestJSON' => 'JSONText', |
|
21
|
|
|
* ]; |
|
22
|
|
|
* |
|
23
|
|
|
* private static $json_field_map = [ |
|
24
|
|
|
* 'TestJSON' => ['TestField1', 'TestField2'] |
|
25
|
|
|
* ]; |
|
26
|
|
|
* |
|
27
|
|
|
* public function getCMSFields() |
|
28
|
|
|
* { |
|
29
|
|
|
* $fields = parent::getCMSFields(); |
|
30
|
|
|
* $fields->addFieldsToTab('Root.Main', [ |
|
31
|
|
|
* TextField::create('TestField1', 'Test 1'), |
|
32
|
|
|
* TextField::create('TestField2', 'Test 2'), |
|
33
|
|
|
* TextField::create('TestJSON', 'Some JSON') // Uses a TextField for demo, normally this would be hidden from CMS users |
|
34
|
|
|
* ]); |
|
35
|
|
|
* |
|
36
|
|
|
* return $fields; |
|
37
|
|
|
* } |
|
38
|
|
|
* </code> |
|
39
|
|
|
* |
|
40
|
|
|
* @package jsontext |
|
41
|
|
|
* @subpackage control |
|
42
|
|
|
* @author Russell Michell <[email protected]> |
|
43
|
|
|
*/ |
|
44
|
|
|
|
|
45
|
|
|
namespace JSONText\Extensions; |
|
46
|
|
|
|
|
47
|
|
|
use JSONText\Fields\JSONText; |
|
48
|
|
|
use JSONText\Exceptions\JSONTextException; |
|
49
|
|
|
|
|
50
|
|
|
class JSONTextExtension extends \DataExtension |
|
51
|
|
|
{ |
|
|
|
|
|
|
52
|
|
|
/** |
|
53
|
|
|
* Pre-process incoming CMS POST data, and modify any available {@link JSONText} |
|
54
|
|
|
* data for presentation in "headless" input fields. |
|
55
|
|
|
* |
|
56
|
|
|
* @return null |
|
57
|
|
|
*/ |
|
58
|
|
|
public function onBeforeWrite() |
|
59
|
|
|
{ |
|
60
|
|
|
parent::onBeforeWrite(); |
|
61
|
|
|
|
|
62
|
|
|
$owner = $this->getOwner(); |
|
63
|
|
|
$controller = \Controller::curr(); |
|
64
|
|
|
$postVars = $controller->getRequest()->postVars(); |
|
65
|
|
|
$doUpdate = ( |
|
66
|
|
|
count($postVars) && |
|
67
|
|
|
in_array(get_class($controller), ['CMSPageEditController', 'FakeController']) && |
|
68
|
|
|
!empty($owner->config()->json_field_map) |
|
69
|
|
|
); |
|
70
|
|
|
|
|
71
|
|
|
if (!$doUpdate) { |
|
72
|
|
|
return null; |
|
73
|
|
|
} |
|
74
|
|
|
|
|
75
|
|
|
foreach ($owner->db() as $field => $type) { |
|
76
|
|
|
if ($type === 'JSONText') { |
|
77
|
|
|
$this->updateJSON($postVars, $owner); |
|
78
|
|
|
} |
|
79
|
|
|
} |
|
80
|
|
|
} |
|
81
|
|
|
|
|
82
|
|
|
/** |
|
83
|
|
|
* Called from {@link $this->onBeforeWrote()}. Inserts or updates each available |
|
84
|
|
|
* JSONText DB field with the appropriate input-field data, as per the model's |
|
85
|
|
|
* "json_field_map" config static. |
|
86
|
|
|
* |
|
87
|
|
|
* @param array $postVars |
|
88
|
|
|
* @param DataObject $owner |
|
89
|
|
|
* @return void |
|
90
|
|
|
* @throws JSONTextException |
|
91
|
|
|
*/ |
|
92
|
|
|
public function updateJSON(array $postVars, $owner) |
|
93
|
|
|
{ |
|
94
|
|
|
$jsonFieldMap = $owner->config()->json_field_map; |
|
95
|
|
|
|
|
96
|
|
|
foreach ($jsonFieldMap as $jsonField => $mappedFields) { |
|
97
|
|
|
$jsonFieldData = []; |
|
98
|
|
|
|
|
99
|
|
|
foreach ($mappedFields as $fieldName) { |
|
100
|
|
|
if (!isset($postVars[$fieldName])) { |
|
101
|
|
|
$msg = sprintf('%s doesn\'t exist in POST data.', $fieldName); |
|
102
|
|
|
throw new JSONTextException($msg); |
|
103
|
|
|
} |
|
104
|
|
|
|
|
105
|
|
|
$jsonFieldData[$fieldName] = $postVars[$fieldName]; |
|
106
|
|
|
} |
|
107
|
|
|
|
|
108
|
|
|
$fieldValue = singleton('JSONText')->toJson($jsonFieldData); |
|
109
|
|
|
$owner->setField($jsonField, $fieldValue); |
|
110
|
|
|
} |
|
111
|
|
|
} |
|
112
|
|
|
|
|
113
|
|
|
/** |
|
114
|
|
|
* The CMS input fields declared in the json_field_map static, are not DB-backed, |
|
115
|
|
|
* by virtue of this extension, they are backed by specific values represented |
|
116
|
|
|
* in the relevant JSON data. Therefore we need to pre-populate each such field's |
|
117
|
|
|
* value. |
|
118
|
|
|
* |
|
119
|
|
|
* @param FieldList $fields |
|
120
|
|
|
* @return void |
|
121
|
|
|
*/ |
|
122
|
|
|
public function updateCMSFields(\FieldList $fields) |
|
123
|
|
|
{ |
|
124
|
|
|
$owner = $this->getOwner(); |
|
125
|
|
|
$jsonFieldMap = $owner->config()->json_field_map; |
|
126
|
|
|
|
|
127
|
|
|
foreach ($jsonFieldMap as $jsonField => $mappedFields) { |
|
128
|
|
|
if (!$owner->getField($jsonField)) { |
|
129
|
|
|
continue; |
|
130
|
|
|
} |
|
131
|
|
|
|
|
132
|
|
|
$jsonFieldObj = $owner->dbObject($jsonField); |
|
133
|
|
|
|
|
134
|
|
|
foreach ($mappedFields as $fieldName) { |
|
135
|
|
|
if (!$fieldValue = $jsonFieldObj->query('->>', $fieldName)) { |
|
136
|
|
|
continue; |
|
137
|
|
|
} |
|
138
|
|
|
|
|
139
|
|
|
if ($fieldValue = array_values($jsonFieldObj->toArray($fieldValue))) { |
|
140
|
|
|
$fieldValue = $fieldValue[0]; |
|
141
|
|
|
$owner->setField($fieldName, $fieldValue); |
|
142
|
|
|
} |
|
143
|
|
|
} |
|
144
|
|
|
} |
|
145
|
|
|
} |
|
146
|
|
|
} |
|
147
|
|
|
|
phptek /
silverstripe-jsontext
Loading history...