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| 1 | +<?php namespace GeneaLabs\LaravelModelCaching; |
| 2 | + |
| 3 | +use Illuminate\Database\Eloquent\Model; |
| 4 | +use Illuminate\Database\Query\Builder; |
| 5 | +use Illuminate\Support\Collection; |
| 6 | + |
| 7 | +class CacheKey |
| 8 | +{ |
| 9 | + protected $eagerLoad; |
| 10 | + protected $model; |
| 11 | + protected $query; |
| 12 | + |
| 13 | + public function __construct(array $eagerLoad, Model $model, Builder $query) |
| 14 | + { |
| 15 | + $this->eagerLoad = $eagerLoad; |
| 16 | + $this->model = $model; |
| 17 | + $this->query = $query; |
| 18 | + } |
| 19 | + |
| 20 | + public function make(array $columns = ['*'], $idColumn = null) : string |
| 21 | + { |
| 22 | + $key = $this->getModelSlug(); |
| 23 | + $key .= $this->getIdColumn($idColumn ?: ''); |
| 24 | + $key .= $this->getQueryColumns($columns); |
| 25 | + $key .= $this->getWhereClauses(); |
| 26 | + $key .= $this->getWithModels(); |
| 27 | + $key .= $this->getOrderByClauses(); |
| 28 | + $key .= $this->getOffsetClause(); |
| 29 | + $key .= $this->getLimitClause(); |
| 30 | + |
| 31 | + return $key; |
| 32 | + } |
| 33 | + |
| 34 | + protected function getIdColumn(string $idColumn) : string |
| 35 | + { |
| 36 | + return $idColumn ? "_{$idColumn}" : ''; |
| 37 | + } |
| 38 | + |
| 39 | + protected function getLimitClause() : string |
| 40 | + { |
| 41 | + if (! $this->query->limit) { |
| 42 | + return ''; |
| 43 | + } |
| 44 | + |
| 45 | + return "-limit_{$this->query->limit}"; |
| 46 | + } |
| 47 | + |
| 48 | + protected function getModelSlug() : string |
| 49 | + { |
| 50 | + return str_slug(get_class($this->model)); |
| 51 | + } |
| 52 | + |
| 53 | + protected function getOffsetClause() : string |
| 54 | + { |
| 55 | + if (! $this->query->offset) { |
| 56 | + return ''; |
| 57 | + } |
| 58 | + |
| 59 | + return "-offset_{$this->query->offset}"; |
| 60 | + } |
| 61 | + |
| 62 | + protected function getOrderByClauses() : string |
| 63 | + { |
| 64 | + $orders = collect($this->query->orders); |
| 65 | + |
| 66 | + return $orders->reduce(function($carry, $order){ |
| 67 | + return $carry . '_orderBy_' . $order['column'] . '_' . $order['direction']; |
| 68 | + }) |
| 69 | + ?: ''; |
| 70 | + } |
| 71 | + |
| 72 | + protected function getQueryColumns(array $columns) : string |
| 73 | + { |
| 74 | + if ($columns === ['*'] || $columns === []) { |
| 75 | + return ''; |
| 76 | + } |
| 77 | + |
| 78 | + return '_' . implode('_', $columns); |
| 79 | + } |
| 80 | + |
| 81 | + protected function getTypeClause($where) : string |
| 82 | + { |
| 83 | + return in_array($where['type'], ['In', 'Null', 'NotNull']) |
| 84 | + ? strtolower($where['type']) |
| 85 | + : ''; |
| 86 | + } |
| 87 | + |
| 88 | + protected function getValuesClause(array $where = null) : string |
| 89 | + { |
| 90 | + return is_array(array_get($where, 'values')) |
| 91 | + ? '_' . implode('_', $where['values']) |
| 92 | + : ''; |
| 93 | + } |
| 94 | + |
| 95 | + protected function getWhereClauses(array $wheres = []) : string |
| 96 | + { |
| 97 | + return $this->getWheres($wheres) |
| 98 | + ->reduce(function ($carry, $where) { |
| 99 | + if (in_array($where['type'], ['Exists', 'Nested', 'NotExists'])) { |
| 100 | + return '_' . strtolower($where['type']) . $this->getWhereClauses($where['query']->wheres); |
| 101 | + } |
| 102 | + |
| 103 | + if ($where['type'] === 'Column') { |
| 104 | + return "_{$where['boolean']}_{$where['first']}_{$where['operator']}_{$where['second']}"; |
| 105 | + } |
| 106 | + |
| 107 | + if ($where['type'] === 'raw') { |
| 108 | + return "_{$where['boolean']}_" . str_slug($where['sql']); |
| 109 | + } |
| 110 | + |
| 111 | + $value = array_get($where, 'value'); |
| 112 | + $value .= $this->getTypeClause($where); |
| 113 | + $value .= $this->getValuesClause($where); |
| 114 | + |
| 115 | + return "{$carry}-{$where['column']}_{$value}"; |
| 116 | + }) |
| 117 | + . ''; |
| 118 | + } |
| 119 | + |
| 120 | + protected function getWheres(array $wheres) : Collection |
| 121 | + { |
| 122 | + $wheres = collect($wheres); |
| 123 | + |
| 124 | + if ($wheres->isEmpty()) { |
| 125 | + $wheres = collect($this->query->wheres); |
| 126 | + } |
| 127 | + |
| 128 | + return $wheres; |
| 129 | + } |
| 130 | + |
| 131 | + protected function getWithModels() : string |
| 132 | + { |
| 133 | + $eagerLoads = collect($this->eagerLoad); |
| 134 | + |
| 135 | + if ($eagerLoads->isEmpty()) { |
| 136 | + return ''; |
| 137 | + } |
| 138 | + |
| 139 | + return '-' . implode('-', $eagerLoads->keys()->toArray()); |
| 140 | + } |
| 141 | +} |
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