From df13b761ff945db894ade4dba6c68fb6f14c8615 Mon Sep 17 00:00:00 2001
From: William Carroll <wpcarro@gmail.com>
Date: Mon, 27 Jul 2020 11:16:26 +0100
Subject: [PATCH] Define table schema and CSVs to populate the database

TL;DR:
- Created src/init.sql, which defines the tables
- Created a data/ directory to house .csv data to populate our db
- Updated the README with usage instructions
---
 .gitignore        |  1 +
 README.md         | 44 ++++++++++++++++++++++++++++++++++++++++++++
 data/accounts.csv |  3 +++
 data/trips.csv    |  3 +++
 src/init.sql      | 31 +++++++++++++++++++++++++++++++
 5 files changed, 82 insertions(+)
 create mode 100644 data/accounts.csv
 create mode 100644 data/trips.csv
 create mode 100644 src/init.sql

diff --git a/.gitignore b/.gitignore
index c50ada2bf..aa7648cec 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 *.db
+*.sqlite3
 *.db-shm
 *.db-wal
\ No newline at end of file
diff --git a/README.md b/README.md
index e69de29bb..e6d20d649 100644
--- a/README.md
+++ b/README.md
@@ -0,0 +1,44 @@
+# TopTal take-home #2
+
+All of the commands defined herein should be run from the top-level directory of
+this repository (i.e. the directory in which this file exists).
+
+## Database
+
+Create a new database named `db.sqlite3` with:
+
+```shell
+$ sqlite3 db.sqlite3
+```
+
+Initialize the schema with:
+
+```
+sqlite> .read src/init.sql
+```
+
+You can verify that you successfully initialized the database by running:
+
+```
+sqlite> .tables
+sqlite> .schema Accounts
+sqlite> .schema Trips
+```
+
+Populate the database with some dummy values using the following:
+
+```
+sqlite> PRAGMA foreign_keys = on;
+sqlite> .mode csv
+sqlite> .import data/accounts.csv Accounts
+sqlite> .import data/trips.csv Trips
+```
+
+You can verify you successfully populated the tables with:
+
+```
+sqlite> .mode columns
+sqlite> .headers on
+sqlite> SELECT * FROM Accounts;
+sqlite> SELECT * FROM Trips;
+```
diff --git a/data/accounts.csv b/data/accounts.csv
new file mode 100644
index 000000000..51af23eec
--- /dev/null
+++ b/data/accounts.csv
@@ -0,0 +1,3 @@
+mimi,testing,miriamwright@google.com,user,
+bill,testing,wpcarro@gmail.com,manager,
+wpcarro,testing,wpcarro@google.com,admin,
\ No newline at end of file
diff --git a/data/trips.csv b/data/trips.csv
new file mode 100644
index 000000000..3377efeba
--- /dev/null
+++ b/data/trips.csv
@@ -0,0 +1,3 @@
+mimi,Rome,2020-08-10,2020-15-30,Heading home before the upcoming trip with Panarea.
+mimi,Panarea,2020-08-15,2020-05-30,Exciting upcoming trip with Matt and Sarah!
+mimi,London,2020-08-30,2020-08-30,Heading back to London...
\ No newline at end of file
diff --git a/src/init.sql b/src/init.sql
new file mode 100644
index 000000000..951ea3ecb
--- /dev/null
+++ b/src/init.sql
@@ -0,0 +1,31 @@
+-- Run `.read init.sql` from within a SQLite3 REPL to initialize the tables we
+-- need for this application. This will erase all current entries, so use with
+-- caution.
+-- Make sure to set `PRAGMA foreign_keys = on;` when transacting with the
+-- database.
+
+BEGIN TRANSACTION;
+
+DROP TABLE IF EXISTS Accounts;
+DROP TABLE IF EXISTS Trips;
+
+CREATE TABLE Accounts (
+  username TEXT NOT NULL,
+  password TEXT NOT NULL,
+  email TEXT NOT NULL UNIQUE,
+  role TEXT NOT NULL,
+  profilePicture BLOB,
+  PRIMARY KEY (username)
+);
+
+CREATE TABLE Trips (
+  username TEXT NOT NULL,
+  destination TEXT NOT NULL,
+  startDate TEXT NOT NULL, -- YYYY-MM-DD
+  endDate TEXT NOT NULL, -- YYYY-MM-DD
+  comment TEXT NOT NULL,
+  PRIMARY KEY (username, destination, startDate),
+  FOREIGN KEY (username) REFERENCES Accounts ON DELETE CASCADE
+);
+
+COMMIT;