add scaffolding to install new prototype SQL

Author: mathemancer

conftest.py

@@ -18,6 +18,8 @@
 
 from fixtures.utils import create_scoped_fixtures
 
+PROTOTYPE_FILE = os.path.join('db', 'sql', 'prototype.sql')
+
 
 def engine_cache(request):
     import logging
@@ -74,6 +76,8 @@ def __create_db(db_name):
         created_dbs.add(db_name)
         # Our default testing database has our types and functions preinstalled.
         install.install_mathesar_on_database(engine)
+        with open(PROTOTYPE_FILE) as f, engine.begin() as conn:
+            conn.execute(text(f.read()))
         engine.dispose()
         return db_name
     yield __create_db

db/install.py

@@ -1,9 +1,12 @@
+import os
 from sqlalchemy import text
 from sqlalchemy.exc import OperationalError
 
 from db import engine
 from db.types import install
 
+PROTOTYPE_FILE = os.path.join('sql', 'prototype.sql')
+
 
 def install_mathesar(
         database_name, username, password, hostname, port, skip_confirm
@@ -17,6 +20,8 @@ def install_mathesar(
         user_db_engine.connect()
         print(f"Installing Mathesar on preexisting PostgreSQL database {database_name} at host {hostname}...")
         install.install_mathesar_on_database(user_db_engine)
+        with open(PROTOTYPE_FILE) as f, engine.begin() as conn:
+            conn.execute(text(f.read()))
         user_db_engine.dispose()
     except OperationalError:
         database_created = _create_database(
@@ -30,6 +35,8 @@ def install_mathesar(
         if database_created:
             print(f"Installing Mathesar on PostgreSQL database {database_name} at host {hostname}...")
             install.install_mathesar_on_database(user_db_engine)
+            with open(PROTOTYPE_FILE) as f, engine.begin() as conn:
+                conn.execute(text(f.read()))
             user_db_engine.dispose()
         else:
             print(f"Skipping installing on DB with key {database_name}.")