Agregado estadisticas en el controlador

Author: jlpereira

.tmp/data.db

@@ -24,6 +24,14 @@
         "policies": []
       }
     },
+    {
+      "method": "GET",
+      "path": "/taxons/:id/statistics",
+      "handler": "taxon.statistics",
+      "config": {
+        "policies": []
+      }
+    },
     {
       "method": "POST",
       "path": "/taxons",

api/taxon/config/routes.json

@@ -1,8 +1,27 @@
 'use strict';
 
+const { sanitizeEntity } = require('strapi-utils');
+
 /**
  * Read the documentation (https://strapi.io/documentation/v3.x/concepts/controllers.html#core-controllers)
  * to customize this controller
  */
 
-module.exports = {};
+module.exports = {
+  async statistics(ctx) {
+    const months = new Array(12).fill(0);
+    const observations = await strapi.query('observation').find({ 'taxon.id': ctx.params.id });
+    const weather = observations.filter(obs => obs.weather != null).map(obs => obs.weather);
+    
+    observations.forEach(observation => { months[(new Date(observation.date)).getMonth()]++ })
+
+    const data =  {
+      date_count: months,
+      temp: {
+        min: Math.min(...weather.map(w => w.main.temp)),
+        max: Math.max(...weather.map(w => w.main.temp))
+      }
+    }
+    ctx.send(data)
+  }
+};