Added a script to reset the db (#80)

Co-authored-by: Nargis Sultani <[email protected]>

README.md

@@ -26,6 +26,14 @@ $ docker compose up -d pg keycloak
 ```
 ![Docker](images/sbl_project_svcs.png)
 
+---
+## Resetting DB and Seeding mock data
+On app startup, alembic creates all the tables and seeds the lookup tables. 
+Running the below script with the 'reset' argument will reset the db:
+db_revisions/dev_setup.sh reset
+Passing the 'reset-then-seed' argument to the script will reset the db and then seed the lookup tables:
+db_revisions/dev_setup.sh reset-then-seed
+
 ---
 ## Running the app
 Once the [Dependencies](#dependencies), and [Pre-requisites](#pre-requisites) have been satisfied:

db_revisions/dev_setup.sh

@@ -0,0 +1,22 @@
+#!/bin/sh
+
+if [[ $1 == "" ]]
+then
+ echo "No arguments passed!"
+ echo "The argument must be either reset or reset-then-seed"
+ exit 0
+fi
+
+ACTION=$1
+
+if [ $ACTION == "reset" ] 
+then 
+    #If only need to reset db
+    poetry run alembic downgrade base
+elif [ $ACTION == "reset-then-seed" ] 
+then
+    #First reset the db
+    poetry run alembic downgrade base
+    #Then upgrade it to head
+    poetry run alembic upgrade head 
+fi