Support to copy project

api/__init__.py

@@ -1,5 +1,6 @@
 from .project import have_project, create_project, delete_project
 from .project import is_project_open, open_project, close_project
+from .project import copy_project
 
 from .operation import execute_undo as undo
 from .operation import execute_redo as redo

api/project.py

@@ -9,10 +9,13 @@ def have_project(name: str) -> bool:
             cur.execute(f"select * from pg_database where datname = '{name}'")
             return cur.rowcount > 0
 
-def create_project(name: str) -> None:
+def copy_project(source: str, new: str) -> None:
     with pg.connect(conninfo="dbname=postgres", autocommit=True) as conn:
         with conn.cursor() as cur:
-            cur.execute(f"create database {name} with template = project")
+            cur.execute(f"create database {new} with template = {source}")
+
+def create_project(name: str) -> None:
+    return copy_project('project', name)
 
 def delete_project(name: str) -> None:
     with pg.connect(conninfo="dbname=postgres", autocommit=True) as conn:

tjnetwork_new.py

@@ -35,6 +35,9 @@ def open_project(name: str) -> None:
 def close_project(name: str) -> None:
     return api.close_project(name)
 
+def copy_project(source: str, new: str) -> None:
+    return api.copy_project(source, new)
+
 
 ############################################################
 # operation