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Example code of nanson/yii2-postgis

Informations about the package yii2-postgis

Yii2 Postgis

Extension for working with Postgis. As intermediate format used Geo Json.

Installing

The preferred way to install this extension is through Composer.

GeometryBehavior

Converts coordinates array to SQL expression for saving in postgis binary format before insert/update and from postgis binary to array after find.

Option Type Default Description
attribute string attribute that will be automatically handled
type string geometry type: Point, LineString, Polygon, MultiPoint, MultiLineString, MultiPolygon
skipAfterFindPostgis boolean false skip convertion after find, if data in postgis binary (it requires a separate query, look PostgisQueryTrait)

StBufferBehavior

Generate SQL expression before insert/update based on geometry and radius

Option Type Default Description
attribute string attribute for saving buffer
attributeGeometry string attribute with geometry
attributeRadius string attribute with radius
geography boolean false build buffer as geography
radiusUnit string deg for geomtery or m for geography units of buffer radius: deg, m, km
options array [] additional options for St_Buffer function

PostgisQueryTrait

Extends ActiveQuery for working with Postgis data.

Option Type Default Description
autoGeoJson boolean true select all geo columns as GeoJson automatically
geoFields array all table columns with data type geometry or geography table columns, that must be selected as Geo Json
exceptGeoFields boolean false exclude all geo columns from select statement
exceptFields array [] columns, which must be excluded from select statement
Method Description
withGeoFields($fields=null) Add columns, that must be selected as Geo Json. Accepts null, string, array. If fields is null - all geoFileds will be added.
excludeFields($fields=null) Exclude columns from select statement. Accepts null, string, array. If fields is null - all exceptFields will be excluded from select statement.

GeoJsonHelper

Helper for working with Geo Json

Method Returns Description
toArray($geoJson) array returns coordinates array by Geo Json
toGeoJson($type, $coordinates, $srid=4326) string (geo json) returns Geo Json by geometry type, coordinates array and SRID
toGeometry($type, $coordinates, $srid=4326) string (sql expression) the same, that toGeoJson, but wraps result by "ST_GeomFromGeoJSON('$geoJson')"

All versions of yii2-postgis with dependencies

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Requires yiisoft/yii2 Version *
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