ILIAS  trunk Revision v11.0_alpha-3011-gc6b235a2e85
class.ilAssQuestionPreviewSession.php
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1<?php
2
26{
27 public const SESSION_BASEINDEX = 'ilAssQuestionPreviewSessions';
28
29 public const SESSION_SUBINDEX_INSTANT_RESPONSE_ACTIVE = 'instantResponseActive';
30 public const SESSION_SUBINDEX_PARTICIPANT_SOLUTION = 'participantSolution';
31 public const SESSION_SUBINDEX_RANDOMIZER_SEED = 'randomizerSeed';
32
33 private $userId;
34 private $questionId;
35
37 {
38 $this->userId = $userId;
39 $this->questionId = $questionId;
40 }
41
42 public function init(): void
43 {
45 }
46
47 public function getUserId()
48 {
49 return $this->userId;
50 }
51
52 public function getQuestionId()
53 {
54 return $this->questionId;
55 }
56
57 private function getSessionContextIndex(): string
58 {
59 return "u{$this->userId}::q{$this->questionId}";
60 }
61
62 private function saveSessionValue($subIndex, $value): void
63 {
64 $val = ilSession::get(self::SESSION_BASEINDEX);
65 $val[$this->getSessionContextIndex()][$subIndex] = $value;
66 ilSession::set(self::SESSION_BASEINDEX, $val);
67 }
68
69 private function issetSessionValue($subIndex): bool
70 {
71 $val = ilSession::get(self::SESSION_BASEINDEX);
72 return isset($val[$this->getSessionContextIndex()][$subIndex]);
73 }
74
75 private function readSessionValue($subIndex)
76 {
77 $val = ilSession::get(self::SESSION_BASEINDEX);
78 return $val[$this->getSessionContextIndex()][$subIndex] ?? [];
79 }
80
81 public function setInstantResponseActive($instantResponseActive): void
82 {
83 $this->saveSessionValue(self::SESSION_SUBINDEX_INSTANT_RESPONSE_ACTIVE, $instantResponseActive);
84 }
85
86 public function isInstantResponseActive(): bool
87 {
88 return (bool) $this->readSessionValue(self::SESSION_SUBINDEX_INSTANT_RESPONSE_ACTIVE);
89 }
90
91 public function setParticipantsSolution($participantSolution): void
92 {
93 $this->saveSessionValue(self::SESSION_SUBINDEX_PARTICIPANT_SOLUTION, $participantSolution);
94 }
95
96 public function getParticipantsSolution()
97 {
98 return $this->readSessionValue(self::SESSION_SUBINDEX_PARTICIPANT_SOLUTION) === [] ? null : $this->readSessionValue(self::SESSION_SUBINDEX_PARTICIPANT_SOLUTION);
99 }
100
101 public function hasParticipantSolution(): bool
102 {
103 return $this->issetSessionValue(self::SESSION_SUBINDEX_PARTICIPANT_SOLUTION);
104 }
105
106 public function setRandomizerSeed($seed): void
107 {
108 $this->saveSessionValue(self::SESSION_SUBINDEX_RANDOMIZER_SEED, $seed);
109 }
110
111 public function getRandomizerSeed(): ?int
112 {
113 $val = $this->readSessionValue(self::SESSION_SUBINDEX_RANDOMIZER_SEED);
114 return $val === [] ? null : $val;
115 }
116
117 public function randomizerSeedExists(): bool
118 {
119 return ($this->getRandomizerSeed() !== null);
120 }
121
122 private function ensureSessionStructureExists(): void
123 {
124 if (!is_array(ilSession::get(self::SESSION_BASEINDEX))) {
125 ilSession::set(self::SESSION_BASEINDEX, []);
126 }
127
128 $baseSession = ilSession::get(self::SESSION_BASEINDEX);
129
130 if (!isset($baseSession[$this->getSessionContextIndex()])) {
131 $baseSession[$this->getSessionContextIndex()] = [];
132 }
133
134 $contextSession = &$baseSession[$this->getSessionContextIndex()];
135
136 if (!isset($contextSession[self::SESSION_SUBINDEX_INSTANT_RESPONSE_ACTIVE])) {
138 }
139
140 if (!isset($contextSession[self::SESSION_SUBINDEX_PARTICIPANT_SOLUTION])) {
141 $contextSession[self::SESSION_SUBINDEX_PARTICIPANT_SOLUTION] = null;
142 }
143
144 if (!isset($contextSession[self::SESSION_SUBINDEX_RANDOMIZER_SEED])) {
145 $contextSession[self::SESSION_SUBINDEX_RANDOMIZER_SEED] = null;
146 }
147
148 ilSession::set(self::SESSION_BASEINDEX, $baseSession);
149 }
150}
static get(string $a_var)
static set(string $a_var, $a_val)
Set a value.