LaravelFreelancerNL /
laravel-arangodb
| Total Complexity | 54 |
| Total Lines | 574 |
| Duplicated Lines | 0 % |
| Changes | 0 | ||
Complex classes like Grammar often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Grammar, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 16 | class Grammar extends FluentAqlGrammar |
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| 17 | { |
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| 18 | use Macroable; |
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| 19 | |||
| 20 | public $name; |
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| 21 | |||
| 22 | /** |
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| 23 | * The grammar table prefix. |
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| 24 | * |
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| 25 | * @var string |
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| 26 | */ |
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| 27 | protected $tablePrefix = ''; |
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| 28 | |||
| 29 | /** |
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| 30 | * The grammar table prefix. |
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| 31 | * |
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| 32 | * @var null|int |
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| 33 | */ |
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| 34 | protected $offset = null; |
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| 35 | |||
| 36 | /** |
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| 37 | * The components that make up a select clause. |
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| 38 | * |
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| 39 | * @var array |
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| 40 | */ |
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| 41 | protected $selectComponents = [ |
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| 42 | 'from', |
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| 43 | 'joins', |
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| 44 | 'wheres', |
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| 45 | 'groups', |
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| 46 | 'aggregate', |
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| 47 | 'havings', |
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| 48 | 'orders', |
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| 49 | 'offset', |
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| 50 | 'limit', |
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| 51 | 'columns', |
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| 52 | ]; |
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| 53 | |||
| 54 | protected $operatorTranslations = [ |
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| 55 | '=' => '==', |
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| 56 | '<>' => '!=', |
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| 57 | '<=>' => '==', |
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| 58 | 'rlike' => '=~', |
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| 59 | 'not rlike' => '!~', |
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| 60 | 'regexp' => '=~', |
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| 61 | 'not regexp' => '!~', |
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| 62 | ]; |
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| 63 | |||
| 64 | protected $whereTypeOperators = [ |
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| 65 | 'In' => 'IN', |
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| 66 | 'NotIn' => 'NOT IN', |
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| 67 | ]; |
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| 68 | /** |
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| 69 | * Get the format for database stored dates. |
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| 70 | * |
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| 71 | * @return string |
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| 72 | */ |
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| 73 | public function getDateFormat() |
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| 74 | { |
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| 75 | return 'Y-m-d\TH:i:s.v\Z'; |
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| 76 | } |
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| 77 | |||
| 78 | /** |
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| 79 | * Get the grammar specific operators. |
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| 80 | * |
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| 81 | * @return array |
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| 82 | */ |
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| 83 | public function getOperators() |
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| 84 | { |
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| 85 | return $this->comparisonOperators; |
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| 86 | } |
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| 87 | |||
| 88 | /** |
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| 89 | * @param Builder $builder |
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| 90 | * @param $table |
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| 91 | * @param string $postfix |
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| 92 | * @return mixed |
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| 93 | */ |
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| 94 | protected function generateTableAlias($builder, $table, $postfix = 'Doc') |
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| 95 | { |
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| 96 | $builder->registerAlias($table, Str::singular($table) . $postfix); |
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| 97 | |||
| 98 | return $builder; |
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| 99 | } |
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| 100 | |||
| 101 | protected function prefixTable($table) |
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| 102 | { |
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| 103 | return $this->tablePrefix . $table; |
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| 104 | } |
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| 105 | |||
| 106 | /** |
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| 107 | * Compile an insert statement into AQL. |
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| 108 | * |
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| 109 | * @param Builder $builder |
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| 110 | * @param array $values |
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| 111 | * @return Builder |
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| 112 | * @throws BindException |
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| 113 | */ |
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| 114 | public function compileInsert(Builder $builder, array $values) |
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| 115 | { |
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| 116 | if (Arr::isAssoc($values)) { |
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| 117 | $values = [$values]; |
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| 118 | } |
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| 119 | $table = $this->prefixTable($builder->from); |
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| 120 | |||
| 121 | if (empty($values)) { |
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| 122 | $builder->aqb = $builder->aqb->insert('{}', $table)->get(); |
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| 123 | |||
| 124 | return $builder; |
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| 125 | } |
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| 126 | |||
| 127 | $builder->aqb = $builder->aqb->let('values', $values) |
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| 128 | ->for('value', 'values') |
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| 129 | ->insert('value', $table) |
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| 130 | ->return('NEW._key') |
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| 131 | ->get(); |
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| 132 | |||
| 133 | return $builder; |
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| 134 | } |
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| 135 | |||
| 136 | /** |
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| 137 | * Compile an insert and get ID statement into SQL. |
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| 138 | * |
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| 139 | * @param Builder $builder |
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| 140 | * @param array $values |
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| 141 | * @return Builder |
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| 142 | * @throws BindException |
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| 143 | */ |
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| 144 | public function compileInsertGetId(Builder $builder, $values) |
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| 147 | } |
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| 148 | |||
| 149 | /** |
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| 150 | * Compile a select query into AQL. |
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| 151 | * |
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| 152 | * @param Builder $builder |
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| 153 | * @return Builder |
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| 154 | */ |
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| 155 | public function compileSelect(Builder $builder) |
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| 174 | } |
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| 175 | |||
| 176 | /** |
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| 177 | * Compile the components necessary for a select clause. |
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| 178 | * |
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| 179 | * @param Builder $builder |
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| 180 | * @return Builder |
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| 181 | */ |
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| 182 | protected function compileComponents(Builder $builder) |
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| 183 | { |
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| 184 | foreach ($this->selectComponents as $component) { |
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| 185 | // To compile the query, we'll spin through each component of the query and |
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| 186 | // see if that component exists. If it does we'll just call the compiler |
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| 187 | // function for the component which is responsible for making the SQL. |
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| 188 | |||
| 189 | if (isset($builder->$component) && ! is_null($builder->$component)) { |
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| 190 | $method = 'compile' . ucfirst($component); |
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| 191 | |||
| 192 | $builder = $this->$method($builder, $builder->$component); |
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| 193 | } |
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| 194 | } |
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| 195 | |||
| 196 | return $builder; |
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| 197 | } |
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| 198 | |||
| 199 | /** |
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| 200 | * Compile the "from" portion of the query -> FOR in AQL. |
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| 201 | * |
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| 202 | * @param Builder $builder |
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| 203 | * @param string $table |
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| 204 | * @return Builder |
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| 205 | */ |
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| 206 | protected function compileFrom(Builder $builder, $table) |
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| 215 | } |
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| 216 | |||
| 217 | /** |
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| 218 | * Compile the "join" portions of the query. |
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| 219 | * |
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| 220 | * @param Builder $query |
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| 221 | * @param array $joins |
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| 222 | * @return string |
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| 223 | */ |
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| 224 | protected function compileJoins(Builder $query, $joins) |
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| 225 | { |
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| 226 | return collect($joins)->map(function ($join) use ($query) { |
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| 227 | $table = $this->wrapTable($join->table); |
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|
Bug
introduced
by
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| 228 | |||
| 229 | $nestedJoins = is_null($join->joins) ? '' : ' ' . $this->compileJoins($query, $join->joins); |
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| 230 | |||
| 231 | $tableAndNestedJoins = is_null($join->joins) ? $table : '(' . $nestedJoins . ')'; |
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| 232 | |||
| 233 | return trim("{$join->type} join {$tableAndNestedJoins} {$this->compileWheres($join)}"); |
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| 234 | })->implode(' '); |
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| 235 | } |
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| 236 | |||
| 237 | |||
| 238 | /** |
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| 239 | * Compile the "where" portions of the query. |
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| 240 | * |
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| 241 | * @param Builder $builder |
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| 242 | * @return Builder |
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| 243 | */ |
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| 244 | protected function compileWheres(Builder $builder) |
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| 245 | { |
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| 246 | // Each type of where clauses has its own compiler function which is responsible |
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| 247 | // for actually creating the where clauses SQL. This helps keep the code nice |
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| 248 | // and maintainable since each clause has a very small method that it uses. |
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| 249 | if (is_null($builder->wheres)) { |
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| 250 | return $builder; |
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| 251 | } |
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| 252 | |||
| 253 | if (count($predicates = $this->compileWheresToArray($builder)) > 0) { |
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| 254 | $builder->aqb = $builder->aqb->filter($predicates); |
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| 255 | |||
| 256 | return $builder; |
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| 257 | } |
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| 258 | |||
| 259 | return $builder; |
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| 260 | } |
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| 261 | |||
| 262 | /** |
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| 263 | * Get an array of all the where clauses for the query. |
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| 264 | * |
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| 265 | * @param \Illuminate\Database\Query\Builder $builder |
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| 266 | * @return array |
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| 267 | */ |
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| 268 | protected function compileWheresToArray($builder) |
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| 269 | { |
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| 270 | $result = collect($builder->wheres)->map(function ($where) use ($builder) { |
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| 271 | if (isset($where['operator'])) { |
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| 272 | $where['operator'] = $this->translateOperator($where['operator']); |
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| 273 | } else { |
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| 274 | $where['operator'] = $this->getOperatorByWhereType($where['type']); |
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| 275 | } |
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| 276 | |||
| 277 | //Prefix table alias on the column |
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| 278 | $where['column'] = $this->prefixAlias($builder, $builder->from, $where['column']); |
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| 279 | |||
| 280 | $cleanWhere = []; |
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| 281 | $cleanWhere[0] = $where['column']; |
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| 282 | $cleanWhere[1] = $where['operator']; |
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| 283 | $cleanWhere[2] = null; |
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| 284 | if (isset($where['value'])) { |
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| 285 | $cleanWhere[2] = $where['value']; |
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| 286 | } |
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| 287 | if (isset($where['values'])) { |
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| 288 | $cleanWhere[2] = $where['values']; |
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| 289 | } |
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| 290 | $cleanWhere[3] = $where['boolean']; |
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| 291 | |||
| 292 | return $cleanWhere; |
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| 293 | })->all(); |
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| 294 | |||
| 295 | return $result; |
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| 296 | } |
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| 297 | |||
| 298 | /** |
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| 299 | * Compile an aggregated select clause. |
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| 300 | * |
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| 301 | * @param Builder $builder |
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| 302 | * @param array $aggregate |
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| 303 | * @return Builder |
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| 304 | */ |
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| 305 | protected function compileAggregate(Builder $builder, $aggregate) |
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| 306 | { |
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| 307 | $method = 'compile' . ucfirst($aggregate['function']); |
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| 308 | |||
| 309 | return $this->$method($builder, $aggregate); |
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| 310 | } |
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| 311 | |||
| 312 | /** |
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| 313 | * Compile AQL for count aggregate. |
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| 314 | * @param Builder $builder |
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| 315 | * @param $aggregate |
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| 316 | * @return Builder |
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| 317 | */ |
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| 318 | protected function compileCount(Builder $builder, $aggregate) |
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| 319 | { |
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| 320 | $builder->aqb = $builder->aqb->collect()->withCount('aggregateResult'); |
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| 321 | |||
| 322 | return $builder; |
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| 323 | } |
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| 324 | |||
| 325 | /** |
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| 326 | * Compile AQL for max aggregate. |
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| 327 | * |
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| 328 | * @param Builder $builder |
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| 329 | * @param $aggregate |
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| 330 | * @return Builder |
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| 331 | */ |
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| 332 | protected function compileMax(Builder $builder, $aggregate) |
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| 333 | { |
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| 334 | $column = $this->prefixAlias($builder, $builder->from, $aggregate['columns'][0]); |
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| 335 | |||
| 336 | $builder->aqb = $builder->aqb->collect()->aggregate('aggregateResult', $builder->aqb->max($column)); |
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| 337 | |||
| 338 | return $builder; |
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| 339 | } |
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| 340 | |||
| 341 | /** |
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| 342 | * Compile AQL for min aggregate. |
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| 343 | * |
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| 344 | * @param Builder $builder |
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| 345 | * @param $aggregate |
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| 346 | * @return Builder |
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| 347 | */ |
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| 348 | protected function compileMin(Builder $builder, $aggregate) |
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| 349 | { |
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| 350 | $column = $this->prefixAlias($builder, $builder->from, $aggregate['columns'][0]); |
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| 351 | |||
| 352 | $builder->aqb = $builder->aqb->collect()->aggregate('aggregateResult', $builder->aqb->min($column)); |
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| 353 | |||
| 354 | return $builder; |
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| 355 | } |
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| 356 | |||
| 357 | /** |
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| 358 | * Compile AQL for average aggregate. |
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| 359 | * |
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| 360 | * @param Builder $builder |
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| 361 | * @param $aggregate |
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| 362 | * @return Builder |
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| 363 | */ |
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| 364 | protected function compileAvg(Builder $builder, $aggregate) |
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| 365 | { |
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| 366 | $column = $this->prefixAlias($builder, $builder->from, $aggregate['columns'][0]); |
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| 367 | |||
| 368 | $builder->aqb = $builder->aqb->collect()->aggregate('aggregateResult', $builder->aqb->average($column)); |
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| 369 | |||
| 370 | return $builder; |
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| 371 | } |
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| 372 | |||
| 373 | /** |
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| 374 | * Compile AQL for sum aggregate. |
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| 375 | * |
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| 376 | * @param Builder $builder |
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| 377 | * @param $aggregate |
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| 378 | * @return Builder |
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| 379 | */ |
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| 380 | protected function compileSum(Builder $builder, $aggregate) |
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| 381 | { |
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| 382 | $column = $this->prefixAlias($builder, $builder->from, $aggregate['columns'][0]); |
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| 383 | |||
| 384 | $builder->aqb = $builder->aqb->collect()->aggregate('aggregateResult', $builder->aqb->sum($column)); |
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| 385 | |||
| 386 | return $builder; |
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| 387 | } |
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| 388 | |||
| 389 | /** |
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| 390 | * Compile the "order by" portions of the query. |
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| 391 | * |
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| 392 | * @param Builder $builder |
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| 393 | * @param array $orders |
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| 394 | * @return Builder |
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| 395 | */ |
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| 396 | protected function compileOrders(Builder $builder, $orders) |
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| 397 | { |
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| 398 | if (! empty($orders)) { |
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| 399 | $builder->aqb = $builder->aqb->sort($this->compileOrdersToArray($builder, $orders)); |
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| 400 | |||
| 401 | return $builder; |
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| 402 | } |
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| 403 | |||
| 404 | return $builder; |
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| 405 | } |
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| 406 | |||
| 407 | /** |
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| 408 | * Compile the query orders to an array. |
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| 409 | * |
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| 410 | * @param Builder $builder |
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| 411 | * @param array $orders |
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| 412 | * @return array |
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| 413 | */ |
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| 414 | protected function compileOrdersToArray(Builder $builder, $orders) |
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| 415 | { |
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| 416 | return array_map(function ($order) use ($builder) { |
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| 417 | if (! isset($order['type']) || $order['type'] != 'Raw') { |
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| 418 | $order['column'] = $this->prefixAlias($builder, $builder->from, $order['column']); |
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| 419 | } |
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| 420 | unset($order['type']); |
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| 421 | |||
| 422 | return array_values($order); |
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| 423 | }, $orders); |
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| 424 | } |
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| 425 | |||
| 426 | /** |
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| 427 | * Compile the "offset" portions of the query. |
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| 428 | * We are handling this first by saving the offset which will be used by the FluentAQL's limit function. |
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| 429 | * |
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| 430 | * @param Builder $builder |
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| 431 | * @param int $offset |
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| 432 | * @return Builder |
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| 433 | */ |
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| 434 | protected function compileOffset(Builder $builder, $offset) |
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| 435 | { |
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| 436 | $this->offset = (int) $offset; |
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| 437 | |||
| 438 | return $builder; |
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| 439 | } |
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| 440 | |||
| 441 | /** |
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| 442 | * Compile the "limit" portions of the query. |
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| 443 | * |
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| 444 | * @param Builder $builder |
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| 445 | * @param int $limit |
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| 446 | * @return Builder |
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| 447 | */ |
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| 448 | protected function compileLimit(Builder $builder, $limit) |
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| 449 | { |
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| 450 | if ($this->offset !== null) { |
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| 451 | $builder->aqb = $builder->aqb->limit((int) $this->offset, (int) $limit); |
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| 452 | |||
| 453 | return $builder; |
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| 454 | } |
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| 455 | $builder->aqb = $builder->aqb->limit((int) $limit); |
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| 456 | |||
| 457 | return $builder; |
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| 458 | } |
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| 459 | |||
| 460 | /** |
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| 461 | * Compile the "RETURN" portion of the query. |
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| 462 | * |
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| 463 | * @param Builder $builder |
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| 464 | * @param array $columns |
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| 465 | * @return Builder |
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| 466 | */ |
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| 467 | protected function compileColumns(Builder $builder, array $columns): Builder |
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| 468 | { |
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| 469 | $values = []; |
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| 470 | |||
| 471 | $doc = $builder->getAlias($builder->from); |
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| 472 | foreach ($columns as $column) { |
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| 473 | if ($column != null && $column != '*') { |
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| 474 | $values[$column] = $doc . '.' . $column; |
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| 475 | } |
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| 476 | } |
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| 477 | if ($builder->aggregate !== null) { |
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| 478 | $values = ['aggregate' => 'aggregateResult']; |
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| 479 | } |
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| 480 | if (empty($values)) { |
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| 481 | $values = $doc; |
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| 482 | } |
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| 483 | |||
| 484 | $builder->aqb = $builder->aqb->return($values, (bool) $builder->distinct); |
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| 485 | |||
| 486 | return $builder; |
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| 487 | } |
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| 488 | |||
| 489 | /** |
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| 490 | * Compile an update statement into SQL. |
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| 491 | * |
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| 492 | * @param Builder $builder |
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| 493 | * @param array $values |
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| 494 | * @return Builder |
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| 495 | */ |
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| 496 | public function compileUpdate(Builder $builder, array $values) |
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| 509 | } |
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| 510 | |||
| 511 | /** |
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| 512 | * Compile a delete statement into SQL. |
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| 513 | * |
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| 514 | * @param Builder $builder |
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| 515 | * @param null $_key |
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| 516 | * @return Builder |
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| 517 | */ |
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| 518 | public function compileDelete(Builder $builder, $_key = null) |
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| 538 | } |
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| 539 | |||
| 540 | /** |
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| 541 | * Compile the random statement into SQL. |
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| 542 | * |
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| 543 | * @param Builder $builder |
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| 544 | * @return FunctionExpression; |
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| 545 | */ |
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| 546 | public function compileRandom(Builder $builder) |
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| 547 | { |
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| 548 | return $builder->aqb->rand(); |
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| 549 | } |
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| 550 | |||
| 551 | /** |
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| 552 | * Translate sql operators to their AQL equivalent where possible. |
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| 553 | * |
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| 554 | * @param string $operator |
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| 555 | * @return mixed|string |
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| 556 | */ |
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| 557 | private function translateOperator(string $operator) |
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| 558 | { |
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| 559 | if (isset($this->operatorTranslations[strtolower($operator)])) { |
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| 560 | $operator = $this->operatorTranslations[$operator]; |
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| 561 | } |
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| 562 | |||
| 563 | return $operator; |
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| 564 | } |
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| 565 | |||
| 566 | protected function getOperatorByWhereType($type) |
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| 572 | } |
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| 573 | |||
| 574 | |||
| 575 | /** |
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| 576 | * @param Builder $builder |
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| 577 | * @param string $target |
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| 578 | * @param string $value |
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| 579 | * @return Builder |
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| 580 | */ |
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| 581 | protected function prefixAlias(Builder $builder, string $target, string $value): string |
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| 590 | } |
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| 591 | } |
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| 592 |
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