chore: moves db adapters to top-level packages

packages/db-mongodb/src/connect.ts

@@ -0,0 +1,68 @@
+/* eslint-disable @typescript-eslint/no-var-requires */
+import type { ConnectOptions } from 'mongoose';
+import mongoose from 'mongoose';
+
+import type { MongooseAdapter } from '.';
+import type { Connect } from '../../../types';
+
+export const connect: Connect = async function connect(
+  this: MongooseAdapter,
+  payload,
+) {
+  if (this.url === false) {
+    return;
+  }
+
+  if (!payload.local && typeof this.url !== 'string') {
+    throw new Error('Error: missing MongoDB connection URL.');
+  }
+
+  let urlToConnect = this.url;
+  let successfulConnectionMessage = 'Connected to MongoDB server successfully!';
+
+  const connectionOptions: ConnectOptions & { useFacet: undefined } = {
+    autoIndex: true,
+    ...this.connectOptions,
+    useFacet: undefined,
+  };
+
+  if (process.env.NODE_ENV === 'test') {
+    if (process.env.PAYLOAD_TEST_MONGO_URL) {
+      urlToConnect = process.env.PAYLOAD_TEST_MONGO_URL;
+    } else {
+      connectionOptions.dbName = 'payloadmemory';
+      const { MongoMemoryServer } = require('mongodb-memory-server');
+      const getPort = require('get-port');
+
+      const port = await getPort();
+      this.mongoMemoryServer = await MongoMemoryServer.create({
+        instance: {
+          dbName: 'payloadmemory',
+          port,
+        },
+      });
+
+      urlToConnect = this.mongoMemoryServer.getUri();
+      successfulConnectionMessage = 'Connected to in-memory MongoDB server successfully!';
+    }
+  }
+
+  try {
+    this.connection = (
+      await mongoose.connect(urlToConnect, connectionOptions)
+    ).connection;
+
+    if (process.env.PAYLOAD_DROP_DATABASE === 'true') {
+      this.payload.logger.info('---- DROPPING DATABASE ----');
+      await mongoose.connection.dropDatabase();
+      this.payload.logger.info('---- DROPPED DATABASE ----');
+    }
+    this.payload.logger.info(successfulConnectionMessage);
+  } catch (err) {
+    this.payload.logger.error(
+      `Error: cannot connect to MongoDB. Details: ${err.message}`,
+      err,
+    );
+    process.exit(1);
+  }
+};