| Total Complexity | 57 |
| Total Lines | 253 |
| Duplicated Lines | 0 % |
| Changes | 0 | ||
Complex classes like SpatialTrait 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 SpatialTrait, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 32 | trait SpatialTrait |
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| 33 | { |
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| 34 | /* |
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| 35 | * The attributes that are spatial representations. |
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| 36 | * To use this Trait, add the following array to the model class |
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| 37 | * |
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| 38 | * @var array |
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| 39 | * |
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| 40 | * protected $spatialFields = []; |
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| 41 | */ |
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| 42 | |||
| 43 | public $geometries = []; |
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| 44 | |||
| 45 | protected $stRelations = [ |
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| 46 | 'Within', |
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| 47 | 'Crosses', |
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| 48 | 'Contains', |
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| 49 | 'Disjoint', |
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| 50 | 'Equals', |
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| 51 | 'Intersects', |
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| 52 | 'Overlaps', |
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| 53 | 'Touches', |
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| 54 | ]; |
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| 55 | |||
| 56 | /** |
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| 57 | * Create a new Eloquent query builder for the model. |
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| 58 | * |
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| 59 | * @param \Illuminate\Database\Query\Builder $query |
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| 60 | * @return \LaravelSpatial\Eloquent\Builder |
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| 61 | */ |
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| 62 | public function newEloquentBuilder($query) |
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| 63 | { |
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| 64 | return new Builder($query); |
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| 65 | } |
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| 66 | |||
| 67 | public function setRawAttributes(array $attributes, $sync = false) |
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| 68 | { |
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| 69 | $spatial_fields = $this->getSpatialFields(); |
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| 70 | |||
| 71 | foreach ($attributes as $attribute => &$value) { |
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| 72 | if (in_array($attribute, $spatial_fields) && is_string($value) && strlen($value) >= 15) { |
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| 73 | // MySQL adds 4 NULL bytes at the start of the binary |
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| 74 | if ($this->getConnection() instanceof MySqlConnection && substr($value, 0, 4) == "\0\0\0\0") { |
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| 75 | $value = substr($value, 4); |
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| 76 | } elseif ($this->getConnection() instanceof PostgresConnection) { |
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| 77 | $value = pack('H*', $value); |
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| 78 | } |
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| 79 | |||
| 80 | try { |
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| 81 | $value = GeoJson::jsonUnserialize(json_decode(geoPHP::load($value, 'wkb')->out('json'))); |
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| 82 | } catch (\Exception $e) { |
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| 83 | throw new \Exception("Can't parse WKB {$value}: {$e->getMessage()}", $e->getCode(), $e); |
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| 84 | } |
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| 85 | } |
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| 86 | } |
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| 87 | |||
| 88 | parent::setRawAttributes($attributes, $sync); |
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| 89 | } |
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| 90 | |||
| 91 | public function getSpatialFields() |
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| 92 | { |
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| 93 | if (property_exists($this, 'spatialFields') && !empty($this->spatialFields)) { |
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| 94 | return $this->spatialFields; |
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| 95 | } else { |
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| 96 | throw new SpatialFieldsNotDefinedException(__CLASS__ . ' has to define $spatialFields'); |
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| 97 | } |
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| 98 | } |
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| 99 | |||
| 100 | protected function toWkt(Geometry $value) |
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| 101 | { |
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| 102 | return ($this->getConnection() instanceof PostgresConnection ? 'SRID=4326;' : '') . |
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| 103 | geoPHP::load(json_decode(json_encode($value->jsonSerialize()), false), 'json')->out('wkt'); |
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| 104 | } |
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| 105 | |||
| 106 | protected function performInsert(EloquentBuilder $query, array $options = []) |
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| 107 | { |
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| 108 | foreach ($this->attributes as $key => $value) { |
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| 109 | if ($value instanceof Geometry && $this->isColumnAllowed($key)) { |
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| 110 | $this->geometries[$key] = $value; // Preserve the geometry objects prior to the insert |
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| 111 | $this->attributes[$key] = $this->getConnection()->raw("ST_GeomFromText('{$this->toWkt($value)}')"); |
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| 112 | } |
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| 113 | } |
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| 114 | |||
| 115 | $insert = parent::performInsert($query, $options); |
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| 116 | |||
| 117 | foreach ($this->geometries as $key => $value) { |
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| 118 | $this->attributes[$key] = $value; // Retrieve the geometry objects so they can be used in the model |
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| 119 | } |
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| 120 | |||
| 121 | return $insert; // Return the result of the parent insert |
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| 122 | } |
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| 123 | |||
| 124 | public function isColumnAllowed($geometryColumn) |
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| 125 | { |
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| 126 | if (!in_array($geometryColumn, $this->getSpatialFields())) { |
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| 127 | throw new SpatialFieldsNotDefinedException(); |
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| 128 | } |
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| 129 | |||
| 130 | return true; |
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| 131 | } |
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| 132 | |||
| 133 | public function scopeDistance($query, $geometryColumn, $geometry, $distance) |
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| 134 | { |
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| 135 | if ($this->isColumnAllowed($geometryColumn)) { |
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| 136 | $geometryColumn .= $this->getConnection() instanceof PostgresConnection ? '::geometry' : ''; |
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| 137 | $query->whereRaw("ST_Distance({$geometryColumn}, ST_GeomFromText(?)) <= ?", [ |
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| 138 | $this->toWkt($geometry), |
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| 139 | $distance, |
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| 140 | ]); |
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| 141 | } |
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| 142 | |||
| 143 | return $query; |
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| 144 | } |
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| 145 | |||
| 146 | public function scopeDistanceExcludingSelf($query, $geometryColumn, $geometry, $distance) |
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| 158 | } |
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| 159 | |||
| 160 | public function scopeDistanceValue($query, $geometryColumn, $geometry) |
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| 161 | { |
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| 162 | if ($this->isColumnAllowed($geometryColumn)) { |
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| 163 | $columns = $query->getQuery()->columns; |
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| 164 | |||
| 165 | if (!$columns) { |
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| 166 | $query->select('*'); |
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| 167 | } |
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| 168 | |||
| 169 | $geometryColumn .= $this->getConnection() instanceof PostgresConnection ? '::geometry' : ''; |
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| 170 | $query->selectRaw("ST_Distance({$geometryColumn}, ST_GeomFromText(?)) as distance", [ |
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| 171 | $this->toWkt($geometry), |
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| 172 | ]); |
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| 173 | } |
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| 174 | |||
| 175 | return $query; |
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| 176 | } |
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| 177 | |||
| 178 | public function scopeDistanceSphere($query, $geometryColumn, $geometry, $distance) |
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| 179 | { |
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| 180 | $distFunc = $this->getConnection() instanceof PostgresConnection ? 'ST_DistanceSphere' : 'ST_Distance_Sphere'; |
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| 181 | |||
| 182 | if ($this->isColumnAllowed($geometryColumn)) { |
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| 183 | $geometryColumn .= $this->getConnection() instanceof PostgresConnection ? '::geometry' : ''; |
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| 184 | $query->whereRaw("{$distFunc}({$geometryColumn}, ST_GeomFromText(?)) <= ?", [ |
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| 185 | $this->toWkt($geometry), |
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| 186 | $distance, |
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| 187 | ]); |
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| 188 | } |
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| 189 | |||
| 190 | return $query; |
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| 191 | } |
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| 192 | |||
| 193 | public function scopeDistanceSphereExcludingSelf($query, $geometryColumn, $geometry, $distance) |
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| 207 | } |
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| 208 | |||
| 209 | public function scopeDistanceSphereValue($query, $geometryColumn, $geometry) |
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| 210 | { |
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| 211 | $distFunc = $this->getConnection() instanceof PostgresConnection ? 'ST_DistanceSphere' : 'ST_Distance_Sphere'; |
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| 212 | |||
| 213 | if ($this->isColumnAllowed($geometryColumn)) { |
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| 214 | $columns = $query->getQuery()->columns; |
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| 215 | |||
| 216 | if (!$columns) { |
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| 217 | $query->select('*'); |
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| 218 | } |
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| 219 | |||
| 220 | $geometryColumn .= $this->getConnection() instanceof PostgresConnection ? '::geometry' : ''; |
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| 221 | $query->selectRaw("{$distFunc}({$geometryColumn}, ST_GeomFromText(?)) as distance", [ |
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| 222 | $this->toWkt($geometry), |
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| 223 | ]); |
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| 224 | } |
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| 225 | |||
| 226 | return $query; |
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| 227 | } |
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| 228 | |||
| 229 | public function scopeComparison($query, $geometryColumn, $geometry, $relationship) |
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| 230 | { |
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| 231 | if ($this->isColumnAllowed($geometryColumn)) { |
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| 232 | $relationship = ucfirst(strtolower($relationship)); |
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| 233 | |||
| 234 | if (!in_array($relationship, $this->stRelations)) { |
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| 235 | throw new UnknownSpatialRelationFunction($relationship); |
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| 236 | } |
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| 237 | |||
| 238 | $geometryColumn .= $this->getConnection() instanceof PostgresConnection ? '::geometry' : ''; |
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| 239 | $query->whereRaw("ST_{$relationship}(`{$geometryColumn}`, ST_GeomFromText(?))", [ |
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| 240 | $this->toWkt($geometry), |
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| 241 | ]); |
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| 242 | } |
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| 243 | |||
| 244 | return $query; |
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| 245 | } |
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| 246 | |||
| 247 | public function scopeWithin($query, $geometryColumn, $polygon) |
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| 250 | } |
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| 251 | |||
| 252 | public function scopeCrosses($query, $geometryColumn, $geometry) |
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| 253 | { |
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| 254 | return $this->scopeComparison($query, $geometryColumn, $geometry, 'crosses'); |
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| 255 | } |
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| 256 | |||
| 257 | public function scopeContains($query, $geometryColumn, $geometry) |
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| 258 | { |
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| 259 | return $this->scopeComparison($query, $geometryColumn, $geometry, 'contains'); |
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| 260 | } |
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| 261 | |||
| 262 | public function scopeDisjoint($query, $geometryColumn, $geometry) |
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| 263 | { |
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| 264 | return $this->scopeComparison($query, $geometryColumn, $geometry, 'disjoint'); |
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| 265 | } |
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| 266 | |||
| 267 | public function scopeEquals($query, $geometryColumn, $geometry) |
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| 268 | { |
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| 269 | return $this->scopeComparison($query, $geometryColumn, $geometry, 'equals'); |
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| 270 | } |
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| 271 | |||
| 272 | public function scopeIntersects($query, $geometryColumn, $geometry) |
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| 275 | } |
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| 276 | |||
| 277 | public function scopeOverlaps($query, $geometryColumn, $geometry) |
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| 278 | { |
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| 280 | } |
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| 281 | |||
| 282 | public function scopeDoesTouch($query, $geometryColumn, $geometry) |
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| 283 | { |
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| 284 | return $this->scopeComparison($query, $geometryColumn, $geometry, 'touches'); |
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| 285 | } |
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| 286 | } |
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| 287 |