Welcome to DenoGres! A new comprehensive ORM for
PostgreSQL and Deno.
To begin, let's download DenoGres! Execute the below in the terminal - this will give you access to DenoGres's CLI functionality.
deno install --allow-read --allow-write --allow-net --allow-env --allow-run --name denogres https://deno.land/x/denogres/mod.ts
After installation is complete, following the instructions in your terminal to ensure DenoGres is added to PATH.
Before using DenoGres in a project, run the command below.
denogres --init
This will create the following in your project's root directory:
- .env file for your database connection URI
- a models folder for your model.ts file
- a Migrations folder for migration logs and model snapshots
After running the init command, update the .env file to contain your database's connection URI.
DATABASE_URI=driver://user:password@host:port/database_name
With all the set-up steps complete, you're ready to introspect your database! Database introspection will automatically create TypeScript models of your database tables in the .models/model.ts file.
denogres --db-pull
Denogres features bi-directional synchronization that is designed to ensure that your database schema and your project Models in full alignment, maintaining a single, consistent source of truth.
To introspect and generate the associated models within the model.ts file, execute the the following CLI command:
denogres --db-pull
In addition to --db-pull, Denogres also includes --db-sync functionality that will revise the PostgreSQL schema to reflect changes within the DenoGres model.ts file.
Once completed changes to your model have been made, execute the following CLI command:
denogres --db-sync
DenoGres allows data to be populated to the PostgreSQL schema through data seeding. This is primarily useful during database design/development (i.e. an application requires a certain amount of data to function properly) Create a seed.ts within the project root directory, and execute the following CLI command:
denogres --db-seed
The associated database schema will be pre-populated based on the user's seed.ts file.
DenoGres includes a GUI that allows the user to test and run queries utilizing generated Models and associated methods. Furthermore, users can save database connections and previous queries to their accounts for later access.
Launch the DenoGres GUI by running the following CLI command:
denogres --gui
Any time a user opts to make a request for --db-pull or --db-sync, Denogres maintains a record of that request so that users can refer back to those historical records. Additionally, users can opt to restore the Model/database schema to prior iterations, in instances where users would like to roll back/forward changes that have been made.
To see a historical list of migration logs, execute the following CLI command:
denogres --log
To restore Models to a prior version, execute the following CLI command:
denogres --restore [PREVIOUS_MODEL_FOLDER]
For develpers interested in contributing, to run all tests, use the command:
deno task test
Note: integration tests will require environment variable ENVIRONMENT
set to test as well as a TEST_DB_URI.
DenoGres is continually evolving. Features currently in development include:
- Database sync method (
denogres --db-sync) will account for multiple associations and composite unique keys. - "Compare" command (
denogres --compare) will be implemented to display side-by-side diff between previous models. - A setter method will be appended to a model when an association is established with another model.
- The manyToMany function will create a new join table.
- Migrations log will be visible within the GUI, so that users can track/view/compare model versions.
- Two-way ERD that allows users to change relational data that is then reflected onto their actual database
- Additional support for MySQL, SQL Server, etc.
- A Diagram page will offer a live ERD to visualize the user's database (see preview below)
More information on how to use DenoGres and leverage all its wonderful abstraction functionality can be found here: https://denogres.deno.dev/
- Rachel Cheman | GitHub | LinkedIn
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