done for today

src/models.py

@@ -19,7 +19,7 @@ class SampleMetadata(db.Model):
     id = db.Column(db.Integer, primary_key=True, auto_increment=True)
     timestamp = db.Column(db.TIMESTAMP, nullable=False, server_default=func.now())
 
-    device_id = db.Column(db.String, nullable=False)
+    device_id = db.Column(db.Integer, nullable=False)
     device_date = db.Column(db.DateTime, nullable=False)
 
-    tag = db.Column(db.String, nullable=False)
+    tag = db.Column(db.String(32), nullable=False)

src/resources.py

@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 import logging
 import json
-from flask import request
+import rstr
 from flask_restful import Resource, reqparse
 from werkzeug.datastructures import FileStorage
 import filetype
@@ -50,12 +50,18 @@ class SampleResource(Resource):
             LOGGER.exception(e)
             return {'status': 'error',
                     'message': 'Input JSON could not be parsed'}, 400
-        validate_errors = InputSchema().validate(desc)
+        validate_errors = SampleSchema().validate(desc)
         if validate_errors:
             LOGGER.error(
                 "Input JSON did not conform to schema. It was: {}", desc)
             return {'status': 'error',
                     'message': 'Input JSON schema invalid'}, 417
-# TODO: Preserve input data in relational DB
+        generated_tag = rstr.xeger(r'^[a-zA-Z]+[0-9a-zA-Z_]*$', 2, 32)
+
+        record = SampleMetadata(device_id=desc['device_id'], device_date=desc['date'], tag=generated_tag)
+        db.session.add(record)
+        db.session.commit()
+
+
 # TODO: Pass data and tag to ObjectStorage
 # TODO: Pass tag to MQ