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1 <?php
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2
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3 namespace Drupal\workflows;
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4
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5 /**
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6 * A transition value object that describes the transition between states.
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7 */
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8 class Transition implements TransitionInterface {
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9
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10 /**
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11 * The workflow that this transition is attached to.
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12 *
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13 * @var \Drupal\workflows\WorkflowInterface
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14 */
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15 protected $workflow;
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16
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17 /**
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18 * The transition's ID.
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19 *
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20 * @var string
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21 */
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22 protected $id;
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23
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24 /**
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25 * The transition's label.
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26 *
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27 * @var string
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28 */
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29 protected $label;
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30
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31 /**
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32 * The transition's from state IDs.
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33 *
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34 * @var string[]
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35 */
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36 protected $fromStateIds;
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37
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38 /**
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39 * The transition's to state ID.
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40 *
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41 * @var string
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42 */
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43 protected $toStateId;
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44
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45 /**
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46 * The transition's weight.
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47 *
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48 * @var int
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49 */
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50 protected $weight;
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51
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52 /**
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53 * Transition constructor.
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54 *
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55 * @param \Drupal\workflows\WorkflowInterface $workflow
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56 * The workflow the state is attached to.
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57 * @param string $id
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58 * The transition's ID.
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59 * @param string $label
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60 * The transition's label.
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61 * @param array $from_state_ids
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62 * A list of from state IDs.
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63 * @param string $to_state_id
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64 * The to state ID.
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65 * @param int $weight
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66 * (optional) The transition's weight. Defaults to 0.
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67 */
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68 public function __construct(WorkflowTypeInterface $workflow, $id, $label, array $from_state_ids, $to_state_id, $weight = 0) {
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69 $this->workflow = $workflow;
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70 $this->id = $id;
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71 $this->label = $label;
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72 $this->fromStateIds = $from_state_ids;
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73 $this->toStateId = $to_state_id;
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74 $this->weight = $weight;
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75 }
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76
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77 /**
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78 * {@inheritdoc}
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79 */
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80 public function id() {
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81 return $this->id;
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82 }
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83
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84 /**
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85 * {@inheritdoc}
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86 */
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87 public function label() {
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88 return $this->label;
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89 }
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90
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91 /**
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92 * {@inheritdoc}
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93 */
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94 public function from() {
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95 return $this->workflow->getStates($this->fromStateIds);
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96 }
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97
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98 /**
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99 * {@inheritdoc}
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100 */
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101 public function to() {
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102 return $this->workflow->getState($this->toStateId);
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103 }
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104
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105 /**
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106 * {@inheritdoc}
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107 */
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108 public function weight() {
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109 return $this->weight;
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110 }
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111
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112 }
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