Add the show format for the Source.

tui_rsync/models/models.py

@@ -109,6 +109,18 @@ class Source(BaseModel):
 
     def __repr__(self) -> str:
         return f"{self.label}"
+
+    def show_format(self) -> str:
+        output = f"[b]label:[/] {self.label}\n" \
+                 f"[b]source:[/] {self.source.path}\n" \
+                 f"[b]args:[/] {self.args}\n" \
+                 f"[b]destionations:[/] \n"
+
+        for destination in self.destinations:
+            output+=f"\t{destination.path}\n"
+
+        return output
+
 class Destination(BaseModel):
     source = ForeignKeyField(Source, backref='destinations')
     path = ForeignKeyField(Path)