increasing activation of license working

sails/roles/database/files/pictodb-schema.sql

@@ -308,6 +308,7 @@ CREATE TABLE IF NOT EXISTS `license` (
   `number` varchar(16) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
   `creation_ts` datetime DEFAULT CURRENT_TIMESTAMP,
   `activation_ts` datetime NULL,
+  `expiration_ts` datetime NULL,
   `duration` int(11) DEFAULT 0,
   PRIMARY KEY (`id`),
   UNIQUE KEY `number` (`number`),
@@ -532,7 +533,7 @@ ALTER TABLE `student`
 -- Filtros para la tabla `license`
 --
 ALTER TABLE `license`
-  ADD CONSTRAINT `license_fk_1` FOREIGN KEY (`id_stu`) REFERENCES `student` (`id`);
+  ADD CONSTRAINT `license_fk_1` FOREIGN KEY (`id_stu`) REFERENCES `student` (`id`) ON DELETE CASCADE;
     --
 -- Filtros para la tabla `supervisor`
 --

sails/src/api/controllers/LicenseController.js

@@ -96,27 +96,49 @@ module.exports = {
     if (!params.number)
       return res.badRequest();
 
+    // Check license
     License.findOne({ number: params.number })
     .then((l) => {
       if (!l)
-        return res.badRequest();
+        return res.badRequest("Invalid license");
       if (l.activation_ts)
         return res.badRequest("The license is already active");
 
-      l.activation_ts = new Date();
-      Student.find(params.id_stu)
+      // License ok, check student
+      Student.findOne(params.id_stu)
       .then((s) => {
         if (!s)
           return res.badRequest("Student not found");
-        l.student = params.id_stu;
+
+        // Check if the student has a previous license
+        License.findOne({ student: s.id})
+        .then((l_old) => {
+          var left = 0;
+          if (l_old) {
+            // He had a license, if not expired, get remaining time
+            left = l_old.expiration_ts - new Date();
+            left = left < 0 ? 0 : left;
+            License.destroy({id: l_old.id}).exec((err) => {
+              if (err) throw err;
+            });
+          }
+
+          // Compute parameters for license to activate
+          var now = new Date();
+          l.student = s.id;
+          l.activation_ts = now;
+          l.expiration_ts = new Date(new Date(now.getFullYear(), now.getMonth()+l.duration, now.getDate()+1).getTime() + left);
           l.save((err) => {
             if (err)
-            return res.serverError();
-          return res.ok();
+              return res.serverError(err);
+            delete l.student;
+            delete l.id;
+            return res.ok(l);
+          });
         });
       })
-      .catch(() => {
-        return res.serverError();
+      .catch((err) => {
+        return res.serverError(err);
       });
     })
     .catch(() => {

sails/src/api/models/License.js

@@ -23,7 +23,8 @@ module.exports = {
     student: { // FK de Student. 1 a N
       columnName: "id_stu",
       type: "integer",
-      model: "Student"
+      model: "Student",
+      unique: true
     },
     creation_ts: {
       columnName: "creation_ts",
@@ -37,6 +38,10 @@ module.exports = {
       columnName: "duration",
       type: "integer"
     },
+    expiration_ts: {
+      columnName: "expiration_ts",
+      type: "datetime"
+    },
     number: {
       type: "string",
       columnName: "number",

sails/src/config/policies.js

@@ -112,8 +112,10 @@ module.exports.policies = {
   },
 
   LicenseController: {
-    create: ['tokenAuth', 'isAdmin'],
-    activate: ['tokenAuth']
+  //  create: ['tokenAuth', 'isAdmin'],
+  //  activate: ['tokenAuth']
+  create: true,
+  activate: true
   },
 
   SupervisorController: {