cartodb-4.42/lib/assets/javascripts/cdb/UPGRADE.md
2024-04-06 05:25:13 +00:00

155 lines
4.1 KiB
Markdown

# Upgrading from v1 ([cartodb-gmapsv3](https://github.com/vizzuality/cartodb-gmapsv3) | [leaflet](https://github.com/vizzuality/cartodb-leaflet)) or v2 ([v2.0.28](https://github.com/CartoDB/cartodb.js/releases/tag/v2.0.28)) to latest CartoDB.js v3
If your application is running an old CartoDB javascript library, you should take
into account that the creation layer method and layer functions won't work as expected.
- [Creation](#creation)
- [Methods](#methods)
- setMap
- setQuery
- setStyle
- setLayerOrder
- isAdded
- setBounds
---
## Creation
You should follow the [instructions](http://docs.cartodb.com/cartodb-platform/cartodb-js.html#adding-cartodb-layers-to-an-existing-map) we have in our [documentation](http://docs.cartodb.com/cartodb-platform/cartodb-js.html).
You will find [layer available options](http://docs.cartodb.com/cartodb-platform/cartodb-js.html#cartodbcreatelayermap-layersource--options--callback) and code examples there.
---
## Methods
Following methods are not supported or have changed:
- **setMap**: use [addTo](http://docs.cartodb.com/cartodb-platform/cartodb-js.html#creating-visualizations-at-runtime) instead.
- _v1:_
```javascript
var layer = new L.CartoDBLayer({
map: map,
user_name:'cartodb_user',
table_name: 'table_name',
query: "SELECT * FROM {{table_name}}",
tile_style: "#{{table_name}} {marker-fill:red}"
})
map.addLayer(layer);
```
- _v2:_
```javascript
cartodb.createLayer(map, layerUrl, options, function(layer) {
// For Leaflet
map.addLayer(layer);
// For GMaps
map.overlayMapTypes.setAt(0, layer);
});
```
- _v3:_
```javascript
cartodb.createLayer(map, layerUrl, options)
.addTo(map)
.on('done', function(layer) { ... });
```
- **setQuery**: use [setSQL](http://docs.cartodb.com/cartodb-platform/cartodb-js.html#sublayersetsqlsql) instead.
- _v1:_
```javascript
layer.setQuery("SELECT * FROM {{table_name}} WHERE cartodb_id = 3");
```
- _v2:_
```javascript
layer.setQuery("SELECT * FROM table_name WHERE cartodb_id = 10");
```
- _v3:_
```javascript
layer.setSQL("SELECT * FROM table_name WHERE cartodb_id = 9");
```
- **setStyle**: use [setCartoCSS](http://docs.cartodb.com/cartodb-platform/cartodb-js.html#sublayersetcartocsscss) instead.
- _v1:_
```javascript
layer.setStyle("#{{table_name}} { marker-fill:purple }");
```
- _v2:_
```javascript
layer.setCartoCSS("#layer { marker-fill:pink }");
```
- _v3:_
```javascript
layer.setCartoCSS("#layer { marker-fill:yellow }");
```
- **setLayerOrder**: no alternative, check proper map library methods.
- _v1:_
```javascript
layer.setLayerOrder(2); // Only available for GMaps
```
- _v2:_ check v3
- _v3:_ [Leaflet(1)](http://leafletjs.com/reference.html#tilelayer-bringtofront), [Leaflet(2)](http://leafletjs.com/reference.html#tilelayer-setzindex) or GMaps.
```javascript
// For Leaflet
layer.bringToFront();
layer.bringToBack();
layer.setZIndex();
// For GMaps
map.overlayMapTypes.setAt(0, layer);
```
- **isAdded**: check it with proper map library functions ([Leaflet](http://leafletjs.com/reference.html#map-haslayer) or [GMaps](https://developers.google.com/maps/documentation/javascript/reference#MVCArray)).
- _v1:_
```javascript
layer.isAdded(); // Returned true or false
```
- _v2:_ check v3
- _v3:_ [Leaflet](http://leafletjs.com/reference.html#map-haslayer) or GMaps.
```javascript
// For Leaflet
map.haslayer(layer);
// For GMaps
var added = false;
map.overlayMapTypes.forEach(function(lyr){
if (lyr === layer) added = true;
});
```
- **setBounds**: you can get the needed info using CartoDB SQL ([example](http://docs.cartodb.com/cartodb-platform/cartodb-js.html#sqlgetboundssql-vars-options-callback)).
- _v1:_
```javascript
layer.setBounds("SELECT * FROM {{table_name}} WHERE cartodb_id < 100");
```
- _v2:_ check v3
- _v3:_
```javascript
var sql = new cartodb.SQL({ user: 'cartodb_user' });
sql.getBounds('select * from table').done(function(bounds) {
console.log(bounds);
});
```