Setup for postgres database & schema for blogposts.

api/database/scripts/teardownDatabase.js

@@ -0,0 +1,50 @@
+const fs = require("fs");
+const path = require("path");
+
+if (global.__base == undefined)
+  global.__base = path.join(__dirname, "../..");
+
+const db = require("../index.js");
+
+const allTableNames = () => {
+  const sql = `
+    SELECT tablename
+    FROM pg_catalog.pg_tables
+    WHERE schemaname != 'pg_catalog' AND
+    schemaname != 'information_schema'
+  `;
+
+  return db.all(sql)
+    .then(rows => rows.map(row => row.tablename).reverse())
+}
+
+const teardown = (tableNames) => {
+  if (tableNames.length) {
+    console.log(`Tearing down tables:`)
+    console.log(` - ${tableNames.join("\n - ")}`)
+
+    const sql = `DROP TABLE IF EXISTS ${tableNames.join(",")}`;
+    return db.query(sql);
+  } else {
+    console.log("No tables left to drop.");
+    return Promise.resolve();
+  }
+}
+
+const handleExit = (error=undefined) => {
+  if (error != undefined) {
+    console.log(`🚫 Exited with error: ${error}`);
+    process.exit(1);
+  }
+
+  console.log("✅ Exited teardown successfully!");
+  process.exit(0);
+};
+
+db.connect()
+  .then(() => allTableNames())
+  .then(tableNames => teardown(tableNames))
+  .catch(console.log)
+  .finally(handleExit)
+
+module.exports = db;