sjaakp/yii2-spatial Yii2 ActiveRecord supporting MySQL spatial data

extensiongeomapdbdataspatialmysql

Yii2-spatial

Latest Stable Version Total Downloads License

ActiveRecord with spatial attributes. Those attributes are transformed from the internal MySQL format to GeoJSON format after finding, and vice versa before storing.

Yii2-spatial can also be used to find the model or models which are nearest to a given location.

Notice that this extension is intended to be used with a MySQL or MariaDB database exclusively.

Version 1.1.0 is compatible with MySQL 5.7 and MariaDB 10.3.

Installation

Install Yii2-spatial with Composer. Either add the following to the require section of your composer.json file:

"sjaakp/yii2-spatial": "*"

Or run:

composer require sjaakp/yii2-spatial "*"

You can manually install Yii2-spatial by downloading the source in ZIP-format.

Usage

Simply use a sjaakp\spatial\ActiveRecord as base class for your models, like so:

<?php

use sjaakp\spatial\ActiveRecord;

class MySpatialModel extends ActiveRecord
{
    // ...
}

Notice: if you override find() in a sjaakp\spatial\ActiveRecord-derived class, be sure to return a sjaakp\spatial\ActiveQuery and not an 'ordinary' yii\db\ActiveQuery.

ActiveRecord method

featureProperties()

public function featureProperties($field, $geometry)

Override this function to add properties to the GeoJSON encoded attribute.

  • $field is the attribute name.
  • $geometry is an array with the GeoJSON-information, like decoded JSON.
  • Return: array of property => value.

The default implementation adds the ActiveRecord's primary key as the property 'id'.

ActiveQuery method

nearest()

public function nearest($from, $attribute, $radius)

Change the query so that it finds the model(s) nearest to the point given by $from.

  • $from - string|array
    • string: GeoJSON representation of search Point or Feature.
    • array: location in the form [<lng>, <lat>] (two floats).
  • $attribute - string attribute name of Point in the model.
  • $radius - number search radius in kilometers. Default 100.
  • Return: $this.

Example usages:

$here = [4.9, 52.3];     // longitude and latitude of my place

$here2 = '{"type":"Point","coordinates":[4.9,52.3]}';   // another representation

$nearestModel = <model>::find()->nearest($here, <attributeName>, 200)->one();    // search radius is 200 km

$fiveNearestModels =  <model>::find()->nearest($here, <attributeName>)->limit(5)->all();    // search radius is 100 km (default)

$dataProvider = new ActiveDataProvider([ 'query' => <model>::find()->nearest($here, <attributeName>) ]);

Thanks

  • fpolito for finding a very subtle bug.

Statistics

Downloads
GitHub Stars
GitHub Forks

Releases

Comments



1.1.2 is the latest of 5 releases



MIT license
Stats
17 github stars & 8 github forks
28 downloads in the last day
948 downloads in the last 30 days
52603 total downloads