-
Notifications
You must be signed in to change notification settings - Fork 46
/
UserAction.php
248 lines (202 loc) · 7.91 KB
/
UserAction.php
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
<?php
declare(strict_types=1);
namespace Atk4\Data\Model;
use Atk4\Core\DiContainerTrait;
use Atk4\Core\Exception as CoreException;
use Atk4\Core\InitializerTrait;
use Atk4\Core\TrackableTrait;
use Atk4\Data\Exception;
use Atk4\Data\Model;
/**
* Implements generic user action. Assigned to a model it can be invoked by a user. Model\UserAction class contains a
* meta information about the action (arguments, permissions, appliesTo records, etc) that will help UI/API or add-ons to display
* action trigger (button) correctly in an automated way.
*
* UserAction must NOT rely on any specific UI implementation.
*
* @method Exception getOwner() use getModel() or getEntity() method instead
*/
class UserAction
{
use DiContainerTrait;
use InitializerTrait;
use TrackableTrait;
/** Defining records scope of the action */
public const APPLIES_TO_NO_RECORDS = 'none'; // e.g. add
public const APPLIES_TO_SINGLE_RECORD = 'single'; // e.g. archive
public const APPLIES_TO_MULTIPLE_RECORDS = 'multiple'; // e.g. delete
public const APPLIES_TO_ALL_RECORDS = 'all'; // e.g. truncate
/** @var string by default action is for a single record */
public $appliesTo = self::APPLIES_TO_SINGLE_RECORD;
/** Defining action modifier */
public const MODIFIER_CREATE = 'create'; // create new record(s)
public const MODIFIER_UPDATE = 'update'; // update existing record(s)
public const MODIFIER_DELETE = 'delete'; // delete record(s)
public const MODIFIER_READ = 'read'; // just read, does not modify record(s)
/** @var string How this action interact with record */
public $modifier;
/** @var \Closure|string code to execute. By default will call entity method with same name */
public $callback;
/** @var \Closure|string identical to callback, but would generate preview of action without permanent effect */
public $preview;
/** @var string|null caption to put on the button */
public $caption;
/** @var string|\Closure(static): string|null a longer description of this action. */
public $description;
/** @var bool|string|\Closure(static): string Will ask user to confirm. */
public $confirmation = false;
/** @var bool|\Closure(object): bool setting this to false will disable action. */
public $enabled = true;
/** @var bool system action will be hidden from UI, but can still be explicitly triggered */
public $system = false;
/** @var array<string, array<string, mixed>|Model> Argument definition. */
public $args = [];
/** @var array<int, string>|bool Specify which fields may be dirty when invoking action. APPLIES_TO_NO_RECORDS|APPLIES_TO_SINGLE_RECORD scopes for adding/modifying */
public $fields = [];
/** @var bool Atomic action will automatically begin transaction before and commit it after completing. */
public $atomic = true;
public function isOwnerEntity(): bool
{
/** @var Model */
$owner = $this->getOwner();
return $owner->isEntity();
}
public function getModel(): Model
{
/** @var Model */
$owner = $this->getOwner();
return $owner->getModel(true);
}
public function getEntity(): Model
{
/** @var Model */
$owner = $this->getOwner();
$owner->assertIsEntity();
return $owner;
}
/**
* @return static
*/
public function getActionForEntity(Model $entity): self
{
/** @var Model */
$owner = $this->getOwner();
$entity->assertIsEntity($owner);
foreach ($owner->getUserActions() as $name => $action) {
if ($action === $this) {
return $entity->getUserAction($name); // @phpstan-ignore-line
}
}
throw new Exception('Action instance not found in model');
}
/**
* Attempt to execute callback of the action.
*
* @param mixed ...$args
*
* @return mixed
*/
public function execute(...$args)
{
if ($this->callback === null) {
$fx = \Closure::fromCallable([$this->getEntity(), $this->shortName]);
} elseif (is_string($this->callback)) {
$fx = \Closure::fromCallable([$this->getEntity(), $this->callback]);
} else {
array_unshift($args, $this->getEntity());
$fx = $this->callback;
}
// todo - ACL tests must allow
try {
$this->validateBeforeExecute();
return $this->atomic === false
? $fx(...$args)
: $this->getModel()->atomic(static fn () => $fx(...$args));
} catch (CoreException $e) {
$e->addMoreInfo('action', $this);
throw $e;
}
}
protected function validateBeforeExecute(): void
{
if ($this->enabled === false || ($this->enabled instanceof \Closure && ($this->enabled)($this->getEntity()) === false)) {
throw new Exception('This action is disabled');
}
// Verify that model fields wouldn't be too dirty
if (is_array($this->fields)) {
$tooDirty = array_diff(array_keys($this->getEntity()->getDirtyRef()), $this->fields);
if ($tooDirty) {
throw (new Exception('Calling user action on a Model with dirty fields that are not allowed by this action'))
->addMoreInfo('too_dirty', $tooDirty)
->addMoreInfo('dirty', array_keys($this->getEntity()->getDirtyRef()))
->addMoreInfo('permitted', $this->fields);
}
} elseif (!is_bool($this->fields)) {
throw (new Exception('Argument `fields` for the user action must be either array or boolean'))
->addMoreInfo('fields', $this->fields);
}
// Verify some records scope cases
switch ($this->appliesTo) {
case self::APPLIES_TO_NO_RECORDS:
if ($this->getEntity()->isLoaded()) {
throw (new Exception('This user action can be executed on non-existing record only'))
->addMoreInfo('id', $this->getEntity()->getId());
}
break;
case self::APPLIES_TO_SINGLE_RECORD:
if (!$this->getEntity()->isLoaded()) {
throw new Exception('This user action requires you to load existing record first');
}
break;
}
}
/**
* Identical to Execute but display a preview of what will happen.
*
* @param mixed ...$args
*
* @return mixed
*/
public function preview(...$args)
{
if (is_string($this->preview)) {
$fx = \Closure::fromCallable([$this->getEntity(), $this->preview]);
} else {
array_unshift($args, $this->getEntity());
$fx = $this->preview;
}
return $fx(...$args);
}
/**
* Get description of this current action in a user-understandable language.
*/
public function getDescription(): string
{
if ($this->description instanceof \Closure) {
return ($this->description)($this);
}
return $this->description ?? $this->getCaption() . ' ' . $this->getModel()->getModelCaption();
}
/**
* Return confirmation message for action.
*
* @return string|false
*/
public function getConfirmation()
{
if ($this->confirmation instanceof \Closure) {
return ($this->confirmation)($this);
} elseif ($this->confirmation === true) {
$confirmation = 'Are you sure you wish to execute '
. $this->getCaption()
. ($this->getEntity()->getTitle() ? ' using ' . $this->getEntity()->getTitle() : '')
. '?';
return $confirmation;
}
return $this->confirmation;
}
public function getCaption(): string
{
return $this->caption ?? $this->getModel()->readableCaption($this->shortName);
}
}