dont know what happened

server/models/energy_datum.js

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+import DB from "./../config/database";
+import extend from 'extend';
+import ApiHelper from './../helpers/api_helper';
+
+const NAME = 'EnergyDatum';
+
+/**
+ * Define your own types here
+ */
+
+var EnergyDatum = DB.sequelize.define(NAME, {
+  id: {
+    type: DB.Sequelize.INTEGER,
+    primaryKey: true,
+    autoIncrement: true // Automatically gets converted to SERIAL for postgres
+  },
+  day: {
+    type: DB.Sequelize.INTEGER,
+  },
+  production: DB.Sequelize.FLOAT,
+  consumption: DB.Sequelize.FLOAT
+}, {
+  paranoid: true,
+  underscored: true,
+  tableName: "energy_data",
+  instanceMethods: {},
+  classMethods: {
+    set: ()=>{
+      EnergyDatum.associate();
+    },
+    associate: ()=>{
+      EnergyDatum.belongsTo(DB.House);
+    },
+    exposeForHouseAtDates: (house_id, dates)=>{
+      var params = {house_id: house_id};
+      extend(params, ApiHelper.datesParamToSequelize(dates, 'day'));
+      console.log('EnergyDatum#exposeForHouseAtDates')
+      console.log(params, dates)
+      return EnergyDatum.findAll({
+        where: params,
+        attributes: ['id', 'production', 'consumption', 'day']
+      }).then((energy_data)=>{
+        return energy_data.map((energy_datum)=>{
+          return energy_datum.dataValues;
+        });
+      });
+    }
+  }
+});
+
+EnergyDatum.NAME = NAME;
+module.exports = EnergyDatum;

server/models/house.js

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+import moment from 'moment-timezone';
+import DB from "./../config/database";
+
+const NAME = 'House';
+
+/**
+ * Sequelize Definition
+ */
+
+var House = DB.sequelize.define(NAME, {
+  id: {
+    type: DB.Sequelize.INTEGER,
+    primaryKey: true,
+    autoIncrement: true // Automatically gets converted to SERIAL for postgres
+  },
+  timezone: DB.Sequelize.STRING,
+  name: DB.Sequelize.STRING,
+  data_until: {
+    type: DB.Sequelize.INTEGER,
+  },
+  data_from: {
+    type: DB.Sequelize.INTEGER,
+  }
+}, {
+  paranoid: true,
+  underscored: true,
+  tableName: "houses",
+  instanceMethods: {
+    productionMultiplier: function(timestamp){
+      var house = this,
+        minute = moment.tz(timestamp, house.timezone).hour() * 60 + moment.tz(timestamp, house.timezone).minute(),
+        multiplier = 0;
+      if (minute > 420 && minute < 1140){
+        multiplier = 1 - Math.abs(780 - minute) / 360;
+      }
+      return multiplier;
+    },
+    unixToLocalDay: function(unix){
+      var house = this;
+      return moment.tz(unix * 1000, house.timezone).startOf('day').unix();
+    },
+    aggregatePowerToEnergyData: function(){
+      var house = this;
+      return DB.EnergyDatum.destroy({where: {house_id: house.id}})
+        .then(()=>{
+          return DB.PowerDatum.count({where: {house_id: house.id}})
+        })
+        .then((count)=>{
+          var limit = 0,
+            energy_data = new Map(),
+            promises = [];
+          while (limit < count){
+            let complete = DB.PowerDatum.findAll({where: {house_id: house.id}, limit: 1000, offset: limit, order: 'id ASC'})
+                    .then((power_data)=>{
+                      power_data.forEach((power_datum)=>{
+                        var day = house.unixToLocalDay(power_datum.time),
+                          energy_datum = energy_data.get(day) || {production: 0, consumption: 0, day: day, house_id: house.id};
+                        energy_datum.production += power_datum.production / 1000; // convert Wh to kWh
+                        energy_datum.consumption += power_datum.consumption / 1000; // convert Wh to kWh
+                        energy_data.set(day, energy_datum);
+                      });
+                    });
+            promises.push(complete);
+            limit += 1000;
+          }
+          return Promise.all(promises).then(()=>{
+            return DB.EnergyDatum.bulkCreate(Array.from(energy_data.values()), {validate: true});
+          });
+        })
+        .then(()=>{
+          return house.getPowerData({order: 'time DESC', limit: 1});
+        })
+        .then((max_data)=>{
+          house.data_until = max_data[0].time;
+          return house.getPowerData({order: 'time ASC', limit: 1});
+        }).then((min_data)=>{
+          house.data_from = min_data[0].time;
+          return house.save();
+        });
+    }
+  },
+  classMethods: {
+    set: ()=>{
+      House.associate();
+    },
+    associate: ()=>{
+      House.hasMany(DB.PowerDatum, {as: 'PowerData'});
+    }
+  }
+});
+
+House.NAME = NAME;
+module.exports = House;

server/models/power_datum.js

@@ -0,0 +1,59 @@
+import DB from "./../config/database";
+import extend from 'extend';
+import ApiHelper from './../helpers/api_helper';
+
+const NAME = 'PowerDatum';
+
+/**
+ * Define your own types here
+ */
+
+var PowerDatum = DB.sequelize.define(NAME, {
+  id: {
+    type: DB.Sequelize.INTEGER,
+    primaryKey: true,
+    autoIncrement: true // Automatically gets converted to SERIAL for postgres
+  },
+  time: {
+    type: DB.Sequelize.INTEGER,
+  },
+  consumption: DB.Sequelize.FLOAT,
+  production: DB.Sequelize.FLOAT
+}, {
+  paranoid: true,
+  underscored: true,
+  tableName: "power_data",
+  instanceMethods: {
+    exposeToApi: function(){
+      var power_datum = this,
+        data = power_datum.dataValues;
+      data.consumption = data.consumption * 4; // convert Wh / 15 minutes, to W
+      data.production = data.production * 4; // convert Wh / 15 minutes, to W
+      return data;
+    }
+  },
+  classMethods: {
+    exposeForHouseAtDates: (house_id, dates)=>{
+      var params = {house_id: house_id};
+      params = extend(params, ApiHelper.datesParamToSequelize(dates, 'time'));
+      console.log(params);
+      return PowerDatum.findAll({
+        where: params,
+        attributes: ['id', 'production', 'consumption', 'time']
+      }).then((power_data)=>{
+        return power_data.map((power_datum)=>{
+          return power_datum.exposeToApi();
+        });
+      });
+    },
+    set: ()=>{
+      PowerDatum.associate();
+    },
+    associate: ()=>{
+      PowerDatum.belongsTo(DB.House);
+    }
+  }
+});
+
+PowerDatum.NAME = NAME;
+module.exports = PowerDatum;