moved everything to a new module called backend

backend/models/virtual_command_model.py

@@ -0,0 +1,95 @@
+import json
+from datetime import datetime
+
+from sqlalchemy.ext.hybrid import hybrid_property
+from sqlalchemy.orm import backref
+
+from backend import db
+
+# This is the association table for the many-to-many relationship between
+# virtual commands and recorder commands.
+virtual_command_recorder_command_table = db.Table('virtual_command_recorder_command',
+                                                  db.Column('virtual_command_id', db.Integer,
+                                                            db.ForeignKey('virtual_command.id',
+                                                                          onupdate="CASCADE",
+                                                                          ondelete="CASCADE"),
+                                                            primary_key=True),
+                                                  db.Column('recorder_command_id', db.Integer,
+                                                            db.ForeignKey('recorder_command.id',
+                                                                          onupdate="CASCADE",
+                                                                          ondelete="CASCADE"),
+                                                            primary_key=True))
+
+# This is the association table for the many-to-many relationship between
+# virtual commands and recorder commands.
+virtual_command_recorder_table = db.Table('virtual_command_recorder',
+                                          db.Column('virtual_command_id', db.Integer,
+                                                    db.ForeignKey('virtual_command.id',
+                                                                  onupdate="CASCADE",
+                                                                  ondelete="CASCADE"),
+                                                    primary_key=True),
+                                          db.Column('recorder_id', db.Integer,
+                                                    db.ForeignKey('recorder.id',
+                                                                  onupdate="CASCADE",
+                                                                  ondelete="CASCADE"),
+                                                    primary_key=True))
+
+
+class VirtualCommand(db.Model):
+    id = db.Column(db.Integer, autoincrement=True, primary_key=True)
+    created_at = db.Column(db.DateTime, nullable=False, default=datetime.utcnow())
+    name = db.Column(db.Unicode(63), unique=True, nullable=False)
+    description = db.Column(db.Unicode(255), unique=False, nullable=True, default="")
+
+    recorders = db.relationship('Recorder', secondary=virtual_command_recorder_table,
+                                back_populates='virtual_commands')
+
+    recorder_commands = db.relationship('RecorderCommand', secondary=virtual_command_recorder_command_table,
+                                        back_populates='virtual_commands')
+
+    # parent_virtual_command = db.relationship('VirtualCommand', back_populates='child_virtual_commands')
+    parent_virtual_command_id = db.Column(db.Integer, db.ForeignKey('virtual_command.id'))
+    child_virtual_commands = db.relationship('VirtualCommand',
+                                             backref=backref('parent_virtual_command', remote_side=[id]))
+
+    command_order_string = db.Column(db.String)
+
+    def __init__(self, **kwargs):
+        super(VirtualCommand, self).__init__(**kwargs)
+
+    @staticmethod
+    def get_by_name(name):
+        """
+        Find group by name
+        :param name:
+        :return:
+        """
+        return VirtualCommand.query.filter(VirtualCommand.name == name).first()
+
+    @staticmethod
+    def get_all():
+        """
+        Return all groups
+        :return:
+        """
+        return VirtualCommand.query.all()
+
+    @hybrid_property
+    def command_order(self):
+        if self.command_order_string is None:
+            return []
+        return json.loads(self.command_order_string)
+
+    @command_order.setter
+    def command_order(self, ordered_list_of_commands: list):
+        self.command_order_string = json.dumps(ordered_list_of_commands)
+
+    def __str__(self):
+        return self.name
+
+    def to_dict(self):
+        return dict(id=self.id, name=self.name, description=self.description)
+
+    def toJSON(self):
+        return json.dumps(self.to_dict(), default=lambda o: o.__dict__,
+                          sort_keys=True, indent=4)