Completed
Pull Request — master (#9826)
by Mike
15:37
created

WC_Shipping_Method::has_settings()   A

Complexity

Conditions 2
Paths 2

Size

Total Lines 3
Code Lines 2

Duplication

Lines 0
Ratio 0 %
Metric Value
dl 0
loc 3
rs 10
cc 2
eloc 2
nc 2
nop 0
1
<?php
1 ignored issue
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Coding Style Compatibility introduced by
For compatibility and reusability of your code, PSR1 recommends that a file should introduce either new symbols (like classes, functions, etc.) or have side-effects (like outputting something, or including other files), but not both at the same time. The first symbol is defined on line 18 and the first side effect is on line 4.

The PSR-1: Basic Coding Standard recommends that a file should either introduce new symbols, that is classes, functions, constants or similar, or have side effects. Side effects are anything that executes logic, like for example printing output, changing ini settings or writing to a file.

The idea behind this recommendation is that merely auto-loading a class should not change the state of an application. It also promotes a cleaner style of programming and makes your code less prone to errors, because the logic is not spread out all over the place.

To learn more about the PSR-1, please see the PHP-FIG site on the PSR-1.

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2
3
if ( ! defined( 'ABSPATH' ) ) {
4
	exit;
5
}
6
7
/**
8
 * WooCommerce Shipping Method Class.
9
 *
10
 * Extended by shipping methods to handle shipping calculations etc.
11
 *
12
 * @class       WC_Shipping_Method
13
 * @version     2.6.0
14
 * @package     WooCommerce/Abstracts
15
 * @category    Abstract Class
16
 * @author      WooThemes
17
 */
18
abstract class WC_Shipping_Method extends WC_Settings_API {
19
20
	/**
21
	 * Features this method supports. Possible features used by core:
22
	 * - shipping-zones Shipping zone functionality + instances
23
	 * - instance-settings Instance settings screens.
24
	 * - settings Non-instance settings screens. Enabled by default for BW compatibility with methods before instances existed.
25
	 * @var array
26
	 */
27
	public $supports             = array( 'settings' );
28
29
	/**
30
	 * Unique ID for the shipping method - must be set.
31
	 * @var string
32
	 */
33
	public $id                   = '';
34
35
	/**
36
	 * Method title.
37
	 * @var string
38
	 */
39
	public $method_title         = '';
40
41
	/**
42
	 * Method description.
43
	 * @var string
44
	 */
45
	public $method_description   = '';
46
47
	/**
48
	 * yes or no based on whether the method is enabled.
49
	 * @var string
50
	 */
51
	public $enabled              = 'yes';
52
53
	/**
54
	 * Shipping method title for the frontend.
55
	 * @var string
56
	 */
57
	public $title;
58
59
	/**
60
	 * This is an array of rates - methods must populate this array to register shipping costs.
61
	 * @var array
62
	 */
63
	public $rates                = array();
64
65
	/**
66
	 * If 'taxable' tax will be charged for this method (if applicable).
67
	 * @var string
68
	 */
69
	public $tax_status           = 'taxable';
70
71
	/**
72
	 * Fee for the method (if applicable).
73
	 * @var string
74
	 */
75
	public $fee                  = null;
76
77
	/** @var float Minimum fee for the method */
78
	/**
79
	 * Minimum fee for the method (if applicable).
80
	 * @var string
81
	 */
82
	public $minimum_fee          = null;
83
84
	/**
85
	 * Instance ID if used.
86
	 * @var int
87
	 */
88
	public $instance_id          = 0;
89
90
	/**
91
	 * Instance form fields.
92
	 * @var array
93
	 */
94
	public $instance_form_fields = array();
95
96
	/**
97
	 * Instance settings.
98
	 * @var array
99
	 */
100
	public $instance_settings    = array();
101
102
	/**
103
	 * Availability - legacy. Used for method Availability.
104
	 * No longer useful for instance based shipping methods.
105
	 * @deprecated 2.6.0
106
	 * @var string
107
	 */
108
	public $availability;
109
110
	/**
111
	 * Availability countries - legacy. Used for method Availability.
112
	 * No longer useful for instance based shipping methods.
113
	 * @deprecated 2.6.0
114
	 * @var string
115
	 */
116
	public $countries            = array();
117
118
	/**
119
	 * Constructor.
120
	 * @param int $instance_id
121
	 */
122
	public function __construct( $instance_id = 0 ) {
123
		$this->instance_id = absint( $instance_id );
124
	}
125
126
	/**
127
	 * Check if a shipping method supports a given feature.
128
	 *
129
	 * Methods should override this to declare support (or lack of support) for a feature.
130
	 *
131
	 * @param $feature string The name of a feature to test support for.
132
	 * @return bool True if the shipping method supports the feature, false otherwise.
133
	 */
134
	public function supports( $feature ) {
135
		return apply_filters( 'woocommerce_shipping_method_supports', in_array( $feature, $this->supports ), $feature, $this );
136
	}
137
138
	/**
139
	 * Called to calculate shipping rates for this method. Rates can be added using the add_rate() method.
140
	 */
141
	public function calculate_shipping() {}
142
143
	/**
144
	 * Whether or not we need to calculate tax on top of the shipping rate.
145
	 * @return boolean
146
	 */
147
	public function is_taxable() {
148
		return wc_tax_enabled() && 'taxable' === $this->tax_status && ! WC()->customer->is_vat_exempt();
149
	}
150
151
	/**
152
	 * Whether or not this method is enabled in settings.
153
	 * @since 2.6.0
154
	 * @return boolean
155
	 */
156
	public function is_enabled() {
157
		return 'yes' === $this->enabled;
158
	}
159
160
	/**
161
	 * Return the shipping method instance ID.
162
	 * @since 2.6.0
163
	 * @return int
164
	 */
165
	public function get_instance_id() {
166
		return $this->instance_id;
167
	}
168
169
	/**
170
	 * Return the shipping method title.
171
	 * @since 2.6.0
172
	 * @return string
173
	 */
174
	public function get_method_title() {
175
		return apply_filters( 'woocommerce_shipping_method_title', $this->method_title, $this );
176
	}
177
178
	/**
179
	 * Return the shipping method description.
180
	 * @since 2.6.0
181
	 * @return string
182
	 */
183
	public function get_method_description() {
184
		return apply_filters( 'woocommerce_shipping_method_description', $this->method_description, $this );
185
	}
186
187
	/**
188
	 * Return the shipping title which is user set.
189
	 *
190
	 * @return string
191
	 */
192
	public function get_title() {
193
		return apply_filters( 'woocommerce_shipping_method_title', $this->title, $this->id );
194
	}
195
196
	/**
197
	 * Return calculated rates for a package.
198
	 * @since 2.6.0
199
	 * @param object $package
200
	 * @return array
201
	 */
202
	public function get_rates_for_package( $package ) {
203
		$this->rates = array();
204
		if ( $this->is_available( $package ) && ( empty( $package['ship_via'] ) || in_array( $this->id, $package['ship_via'] ) ) ) {
0 ignored issues
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Documentation introduced by
$package is of type object, but the function expects a array.

It seems like the type of the argument is not accepted by the function/method which you are calling.

In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug.

We suggest to add an explicit type cast like in the following example:

function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
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205
			$this->calculate_shipping( $package );
0 ignored issues
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Unused Code introduced by
The call to WC_Shipping_Method::calculate_shipping() has too many arguments starting with $package.

This check compares calls to functions or methods with their respective definitions. If the call has more arguments than are defined, it raises an issue.

If a function is defined several times with a different number of parameters, the check may pick up the wrong definition and report false positives. One codebase where this has been known to happen is Wordpress.

In this case you can add the @ignore PhpDoc annotation to the duplicate definition and it will be ignored.

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206
		}
207
		return $this->rates;
208
	}
209
210
	/**
211
	 * Add a shipping rate. If taxes are not set they will be calculated based on cost.
212
	 * @param array $args (default: array())
213
	 */
214
	public function add_rate( $args = array() ) {
215
		$args = wp_parse_args( $args, array(
216
			'id'        => '',          // ID for the rate
217
			'label'     => '',          // Label for the rate
218
			'cost'      => '0',         // Amount or array of costs (per item shipping)
219
			'taxes'     => '',          // Pass taxes, nothing to have it calculated for you, or 'false' to calc no tax
220
			'calc_tax'  => 'per_order'  // Calc tax per_order or per_item. Per item needs an array of costs
221
		) );
222
223
		// ID and label are required
224
		if ( ! $args['id'] || ! $args['label'] ) {
225
			return;
226
		}
227
228
		// Handle cost
229
		$total_cost = is_array( $args['cost'] ) ? array_sum( $args['cost'] ) : $args['cost'];
230
		$taxes      = $args['taxes'];
231
232
		// Taxes - if not an array and not set to false, calc tax based on cost and passed calc_tax variable. This saves shipping methods having to do complex tax calculations.
233
		if ( ! is_array( $taxes ) && $taxes !== false && $total_cost > 0 && $this->is_taxable() ) {
234
			$taxes = 'per_item' === $args['calc_tax'] ? $this->get_taxes_per_item( $args['cost'] ) : WC_Tax::calc_shipping_tax( $total_cost, WC_Tax::get_shipping_tax_rates() );
235
		}
236
237
		$this->rates[ $args['id'] ] = new WC_Shipping_Rate( $args['id'], $args['label'], $total_cost, $taxes, $this->id );
238
	}
239
240
	/**
241
	 * Calc taxes per item being shipping in costs array.
242
	 * @since 2.6.0
243
	 * @access protected
244
	 * @param  array $costs
245
	 * @return array of taxes
246
	 */
247
	protected function get_taxes_per_item( $costs ) {
248
		$taxes = array();
249
250
		// If we have an array of costs we can look up each items tax class and add tax accordingly
251
		if ( is_array( $costs ) ) {
252
253
			$cart = WC()->cart->get_cart();
254
255
			foreach ( $costs as $cost_key => $amount ) {
256
				if ( ! isset( $cart[ $cost_key ] ) ) {
257
					continue;
258
				}
259
260
				$item_taxes = WC_Tax::calc_shipping_tax( $amount, WC_Tax::get_shipping_tax_rates( $cart[ $cost_key ]['data']->get_tax_class() ) );
261
262
				// Sum the item taxes
263
				foreach ( array_keys( $taxes + $item_taxes ) as $key ) {
264
					$taxes[ $key ] = ( isset( $item_taxes[ $key ] ) ? $item_taxes[ $key ] : 0 ) + ( isset( $taxes[ $key ] ) ? $taxes[ $key ] : 0 );
265
				}
266
			}
267
268
			// Add any cost for the order - order costs are in the key 'order'
269
			if ( isset( $costs['order'] ) ) {
270
				$item_taxes = WC_Tax::calc_shipping_tax( $costs['order'], WC_Tax::get_shipping_tax_rates() );
271
272
				// Sum the item taxes
273
				foreach ( array_keys( $taxes + $item_taxes ) as $key ) {
274
					$taxes[ $key ] = ( isset( $item_taxes[ $key ] ) ? $item_taxes[ $key ] : 0 ) + ( isset( $taxes[ $key ] ) ? $taxes[ $key ] : 0 );
275
				}
276
			}
277
		}
278
279
		return $taxes;
280
	}
281
282
	/**
283
	 * Is this method available?
284
	 * @param array $package
285
	 * @return bool
286
	 */
287
	public function is_available( $package ) {
288
		$available = $this->is_enabled();
289
290
		// Country availability (legacy, for non-zone based methods)
291
		if ( ! $this->instance_id ) {
292
			$countries = is_array( $this->countries ) ? $this->countries : array();
1 ignored issue
show
Deprecated Code introduced by
The property WC_Shipping_Method::$countries has been deprecated with message: 2.6.0

This property has been deprecated. The supplier of the class has supplied an explanatory message.

The explanatory message should give you some clue as to whether and when the property will be removed from the class and what other property to use instead.

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293
294
			switch ( $this->availability ) {
1 ignored issue
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Deprecated Code introduced by
The property WC_Shipping_Method::$availability has been deprecated with message: 2.6.0

This property has been deprecated. The supplier of the class has supplied an explanatory message.

The explanatory message should give you some clue as to whether and when the property will be removed from the class and what other property to use instead.

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295
				case 'specific' :
296 View Code Duplication
				case 'including' :
0 ignored issues
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Duplication introduced by
This code seems to be duplicated across your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

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297
					$available = in_array( $package['destination']['country'], array_intersect( $countries, array_keys( WC()->countries->get_shipping_countries() ) ) );
298
				break;
299 View Code Duplication
				case 'excluding' :
0 ignored issues
show
Duplication introduced by
This code seems to be duplicated across your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

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300
					$available = in_array( $package['destination']['country'], array_diff( array_keys( WC()->countries->get_shipping_countries() ), $countries ) );
301
				break;
302 View Code Duplication
				default :
0 ignored issues
show
Duplication introduced by
This code seems to be duplicated across your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

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303
					$available = in_array( $package['destination']['country'], array_keys( WC()->countries->get_shipping_countries() ) );
304
				break;
305
			}
306
		}
307
308
		return apply_filters( 'woocommerce_shipping_' . $this->id . '_is_available', $available, $package );
309
	}
310
311
	/**
312
	 * Get fee to add to shipping cost.
313
	 * @param string|float $fee
314
	 * @param float $total
315
	 * @return float
316
	 */
317
	public function get_fee( $fee, $total ) {
318
		if ( strstr( $fee, '%' ) ) {
319
			$fee = ( $total / 100 ) * str_replace( '%', '', $fee );
320
		}
321
		if ( ! empty( $this->minimum_fee ) && $this->minimum_fee > $fee ) {
322
			$fee = $this->minimum_fee;
323
		}
324
		return $fee;
325
	}
326
327
	/**
328
	 * Does this method have a settings page?
329
	 * @return bool
330
	 */
331
	public function has_settings() {
332
		return $this->instance_id ? $this->supports( 'instance-settings' ) : $this->supports( 'settings' );
333
	}
334
335
	/**
336
	 * Output the shipping settings screen.
337
	 */
338
	public function admin_options() {
339
		if ( $this->instance_id ) {
340
			echo wp_kses_post( wpautop( $this->get_method_description() ) );
341
			echo '<table class="form-table">' . $this->generate_settings_html( $this->get_instance_form_fields(), false ) . '</table>';
342
		} else {
343
			echo '<h2>' . esc_html( $this->get_method_title() ) . '</h2>';
344
			echo wp_kses_post( wpautop( $this->get_method_description() ) );
345
			echo '<table class="form-table">' . $this->generate_settings_html( $this->get_form_fields(), false ) . '</table>';
346
		}
347
	}
348
349
	/**
350
	 * get_option function.
351
	 *
352
	 * Gets and option from the settings API, using defaults if necessary to prevent undefined notices.
353
	 *
354
	 * @param  string $key
355
	 * @param  mixed  $empty_value
356
	 * @return mixed  The value specified for the option or a default value for the option.
357
	 */
358
	public function get_option( $key, $empty_value = null ) {
359
		// Instance options take priority over global options
360
		if ( in_array( $key, array_keys( $this->get_instance_form_fields() ) ) ) {
361
			return $this->get_instance_option( $key, $empty_value );
362
		}
363
364
		// Return global option
365
		return parent::get_option( $key, $empty_value );
366
	}
367
368
	/**
369
	 * Gets an option from the settings API, using defaults if necessary to prevent undefined notices.
370
	 *
371
	 * @param  string $key
372
	 * @param  mixed  $empty_value
373
	 * @return mixed  The value specified for the option or a default value for the option.
374
	 */
375 View Code Duplication
	public function get_instance_option( $key, $empty_value = null ) {
0 ignored issues
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Duplication introduced by
This method seems to be duplicated in your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

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376
		if ( empty( $this->instance_settings ) ) {
377
			$this->init_instance_settings();
378
		}
379
380
		// Get option default if unset.
381
		if ( ! isset( $this->instance_settings[ $key ] ) ) {
382
			$form_fields                     = $this->get_instance_form_fields();
383
			$this->instance_settings[ $key ] = $this->get_field_default( $form_fields[ $key ] );
384
		}
385
386
		if ( ! is_null( $empty_value ) && '' === $this->instance_settings[ $key ] ) {
387
			$this->instance_settings[ $key ] = $empty_value;
388
		}
389
390
		return $this->instance_settings[ $key ];
391
	}
392
393
	/**
394
	 * Get settings fields for instances of this shipping method (within zones).
395
	 * Should be overridden by shipping methods to add options.
396
	 * @since 2.6.0
397
	 * @return array
398
	 */
399
	public function get_instance_form_fields() {
400
		return apply_filters( 'woocommerce_shipping_instance_form_fields_' . $this->id, $this->instance_form_fields );
401
	}
402
403
	/**
404
	 * Return the name of the option in the WP DB.
405
	 * @since 2.6.0
406
	 * @return string
407
	 */
408
	public function get_instance_option_key() {
409
		return $this->instance_id ? $this->plugin_id . $this->id . $this->instance_id . '_settings' : '';
410
	}
411
412
	/**
413
	 * Initialise Settings for instances.
414
	 * @since 2.6.0
415
	 */
416 View Code Duplication
	public function init_instance_settings() {
0 ignored issues
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Duplication introduced by
This method seems to be duplicated in your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

Loading history...
417
		$this->instance_settings = get_option( $this->get_instance_option_key(), null );
418
419
		// If there are no settings defined, use defaults.
420
		if ( ! is_array( $this->instance_settings ) ) {
421
			$form_fields             = $this->get_instance_form_fields();
422
			$this->instance_settings = array_merge( array_fill_keys( array_keys( $form_fields ), '' ), wp_list_pluck( $form_fields, 'default' ) );
423
		}
424
	}
425
426
	/**
427
	 * Processes and saves options.
428
	 * If there is an error thrown, will continue to save and validate fields, but will leave the erroring field out.
429
	 * @since 2.6.0
430
	 * @return bool was anything saved?
431
	 */
432
	public function process_admin_options() {
433
		if ( $this->instance_id ) {
434
			$this->init_instance_settings();
435
436 View Code Duplication
			foreach ( $this->get_instance_form_fields() as $key => $field ) {
0 ignored issues
show
Duplication introduced by
This code seems to be duplicated across your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

Loading history...
437
				if ( ! in_array( $this->get_field_type( $field ), array( 'title' ) ) ) {
438
					try {
439
						$this->instance_settings[ $key ] = $this->get_field_value( $key, $field );
440
					} catch ( Exception $e ) {
441
						$this->add_error( $e->getMessage() );
442
					}
443
				}
444
			}
445
446
			return update_option( $this->get_instance_option_key(), apply_filters( 'woocommerce_shipping_' . $this->id . '_instance_settings_values', $this->instance_settings, $this ) );
447
		} else {
448
			return parent::process_admin_options();
449
		}
450
	}
451
}
452