Configurable map

ckanext/mapviews/plugin.py

@@ -1,8 +1,10 @@
 import urlparse
+import json
 
 import ckan.plugins as p
 import pylons.config as config
 
+
 Invalid = p.toolkit.Invalid
 _ = p.toolkit._
 not_empty = p.toolkit.get_validator('not_empty')
@@ -65,13 +67,16 @@ def setup_template_variables(self, context, data_dict):
         fields_without_id = _remove_id_and_prepare_to_template(fields)
         numeric_fields = _filter_numeric_fields_without_id(fields)
         textual_fields = _filter_textual_fields_without_id(fields)
+        map_config = _get_map_configuration()
 
         return {'resource': resource,
                 'resource_view': resource_view,
                 'geojson_resources': geojson_resources,
                 'fields': fields_without_id,
                 'numeric_fields': numeric_fields,
-                'textual_fields': textual_fields}
+                'textual_fields': textual_fields,
+                'map_config': map_config
+                }
 
     def view_template(self, context, data_dict):
         return 'navigablemap_view.html'
@@ -98,6 +103,13 @@ def view_template(self, context, data_dict):
     def form_template(self, context, data_dict):
         return 'choroplethmap_form.html'
 
+def _get_map_configuration():
+
+    namespace = 'ckanext.spatial.common_map.'
+    map_config = dict([(k.replace(namespace, ''), v) for k, v in config.iteritems() if k.startswith(namespace)])
+
+    return map_config
+
 
 def _get_geojson_resources():
     data = {

ckanext/mapviews/theme/public/navigablemap.js

@@ -29,6 +29,7 @@ this.ckan.views.mapviews.navigablemap = (function () {
         geojsonUrl = options.geojsonUrl,
         geojsonKeyField = options.geojsonKeyField,
         resourceKeyField = options.resourceKeyField,
+        mapBaseLayerConfig = options.mapConfig,
         redirectToUrl = (options.redirectToUrl === true) ? '' : options.redirectToUrl,
         filterFields = options.filterFields,
         map = L.map(elementId),
@@ -37,12 +38,13 @@ this.ckan.views.mapviews.navigablemap = (function () {
         maxBounds,
         router;
 
+
     var isInOwnResourceViewPage = $(element.parent()).hasClass('ckanext-datapreview');
     if (!isInOwnResourceViewPage) {
       router = _router(resourceKeyField, geojsonKeyField, redirectToUrl, filterFields, featuresValues);
     }
 
-    _addBaseLayer(map);
+    _addBaseLayer(map, mapBaseLayerConfig);
     geojsonLayer = _addGeoJSONLayer(map, geojson, geojsonKeyField, noDataLabel, featuresValues, router);
     bounds = geojsonLayer.getBounds();
     maxBounds = bounds.pad(0.1);
@@ -53,13 +55,22 @@ this.ckan.views.mapviews.navigablemap = (function () {
     return map;
   }
 
-  function _addBaseLayer(map) {
-    var attribution = 'Map data © OpenStreetMap contributors, Tiles ' +
-                      'Courtesy of <a href="http://www.mapquest.com/"' +
-                      'target="_blank">MapQuest</a> <img' +
-                      'src="//developer.mapquest.com/content/osm/mq_logo.png">';
+  function _addBaseLayer(map, mapBaseLayerConfig) {
+    var baseLayerUrl;
+    var attribution;
+
+    if (mapBaseLayerConfig.type == 'custom') {
+          // Custom XYZ layer
+       if (mapBaseLayerConfig['custom.url']) baseLayerUrl = mapBaseLayerConfig['custom.url'];
+       if (mapBaseLayerConfig['attribution']) attribution = mapBaseLayerConfig['attribution'];
+
+    } else {
+          // Default to Stamen base map
+        baseLayerUrl = 'https://stamen-tiles-{s}.a.ssl.fastly.net/terrain/{z}/{x}/{y}.png';
+        attribution =  'Map tiles by <a href="http://stamen.com">Stamen Design</a> (<a href="http://creativecommons.org/licenses/by/3.0">CC BY 3.0</a>). Data by <a href="http://openstreetmap.org">OpenStreetMap</a> (<a href="http://creativecommons.org/licenses/by-sa/3.0">CC BY SA</a>)';
+    }
 
-    return L.tileLayer('http://otile{s}.mqcdn.com/tiles/1.0.0/osm/{z}/{x}/{y}.png', {
+    return L.tileLayer(baseLayerUrl, {
       subdomains: '1234',
       attribution: attribution
     }).addTo(map);

ckanext/mapviews/theme/templates/choroplethmap_view.html

@@ -1,5 +1,6 @@
 {% resource "mapviews/main" %}
 
+
 <div
   data-module = "choroplethmap"
   data-module-resource-id = "{{ resource.id }}"
@@ -8,6 +9,7 @@
   data-module-resource-label-field = "{{ resource_view.resource_label_field }}"
   data-module-geojson-url = "{{ resource_view.geojson_url }}"
   data-module-geojson-key-field = "{{ resource_view.geojson_key_field }}"
+  data-module-map-config = "{{ h.dump_json(map_config) }}"
   data-module-redirect-to-url = "{{ resource_view.redirect_to_url }}"
   data-module-filter-fields = "{{ h.dump_json(resource_view.filters) if resource_view.filters else '' }}"
   id = "choroplethmap-{{ resource_view.id }}"