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Prismo CLI 🚀

A Prisma-powered schema generator CLI

Generate models, fields, migrations just like Rails — but for Prisma 🎯

---

✨ Features

✔ Generate & destroy models
✔ Add & remove fields with relation auto-handling
✔ Supported relations:
➡ 1to1, 1toM, Mto1, MtoM
✔ Cascade delete support (--cascade)
✔ Migration automation (--migrate)
✔ DB drop/reset with safety confirmation 🔐
✔ Intelligent CLI suggestions for typos
✔ Fully styled --help menu 🎨
✔ Zero manual schema editing! 😎

---

📦 Installation

``sh
npm install -g prismo-cli
`


Verify installation:


`
prismo --help
`
`bash
$ prismo --help
┌────────────────────────────────────────────────────────────┐
│ Prismo CLI Help
└────────────────────────────────────────────────────────────┘
Usage:
prismo [options]

Commands:
Generate
prismo g model ... Create a new model
prismo g field ... Add fields to a model
prismo g relation [--options]

Destroy
prismo d model Remove a model
prismo d field Remove a field

Database
prismo db:migrate Create & apply migration
prismo db:reset Reset DB & reapply migrations
prismo db:drop Drop database
prismo db:seed Run Prisma seed script
prismo list models List all models in schema
prismo studio Launch Prisma Studio UI

Options:
-h, --help Show help
-v, --version Show version
-m , --migrate Automatically run migration
--cascade Enable cascade delete

Relation Types:
1to1, 1toM, Mto1, MtoM Specify relation type

Examples:
prismo g model User name:string email:string
prismo g field Post title:string
prismo d model Order
prismo db:migrate "add_users_table"
prismo studio
`


🧱 Usage Examples

Generate a model

`sh
prismo g model User name:string age:int -m
`

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`
📌 Creating Model
✔ Schema formatted
✔ Model "User" created successfully!
→ Run migration: prismo db:migrate "add_User"
`
`prisma
model User {
id Int @id @default(autoincrement())
name String
age Int
}
`

Add a field

`sh
prismo g field User bio:string --migrate

`


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`📌 Adding Field
✔ Schema formatted
✔ Fields added to User
→ Run: prismo db:migrate "update_User"
`
`prisma
model User {
id Int @id @default(autoincrement())
name String
age Int
bio String?}
`

Destroy a model safely

`
prismo d model Post
`

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`
✔ Model "Post" removed successfully!
→ Run migration: prismo db:migrate "remove_post"
`

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`
✖ Cannot destroy model "Post" 🚫
ℹ Other models reference it:
⚠ - Comment
→ Destroy those models first.
`

List all models

`
prismo list models
`

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`
📌 Database Models

✔ 📦 Model: Post
ℹ - id String @id @default(uuid())
ℹ - title String
ℹ - age Int
ℹ - createdAt DateTime @default(now())

→ All models listed.
`


DB Commands


| Command | Description |
| ------------------- | ------------------------- |
| prismo db:migrate | Apply migrations |
| prismo db:drop | Drop DB instantly + delete migrations files as well (Use Carefully) |
| prismo db:reset | Drop + reapply migrations |

RelationShip Examples

1. 1to1 Relation
Create the following models
`
prismo g model User name:string age:int gender:string --migrate
prismo g model Profile title:string --migrate
`
`sh
# One User has One Profile
prismo g relation 1to1 User Profile --migrate
`
`js
model User {
id String @id @default(uuid())
name String
age Int
gender String
createdAt DateTime @default(now())
updatedAt DateTime @updatedAt

profile Profile?
}

model Profile {
id String @id @default(uuid())
title String
createdAt DateTime @default(now())
updatedAt DateTime @updatedAt

user User @relation(fields: [userId], references: [id])
userId String @unique
}
`
2. 1toM Relation
Create the following models
`
prismo g model User name:string age:int --migrate
prismo g model Post title:string content:string --migrate
`
`sh
# One User can have Many Posts
prismo g relation 1toM User Post --migrate --cascade
`
`js
model User {
id String @id @default(uuid())
name String
age Int
createdAt DateTime @default(now())
updatedAt DateTime @updatedAt
posts Post[]
}

model Post {
id String @id @default(uuid())
title String
content String
createdAt DateTime @default(now())
updatedAt DateTime @updatedAt

user User @relation(fields: [userId], references: [id], onDelete: Cascade)
userId String
}
`
3. Mto1 Relation
Create the following models
`
prismo g model Category name:string --migrate
prismo g model Product name:string --migrate
`
`bash
# Many Products belong to One Category
prismo g relation Mto1 Product Category --migrate
`
`js
model Category {
id String @id @default(uuid())
name String
createdAt DateTime @default(now())
updatedAt DateTime @updatedAt

products Product[]
}

model Product {
id String @id @default(uuid())
name String
createdAt DateTime @default(now())
updatedAt DateTime @updatedAt
category Category @relation(fields: [categoryId], references: [id])
categoryId String
}
`
4. MtoM Relation
Create the following models
`
prismo g model Author name:string --migrate
prismo g model Book title:string --migrate
`
`bash
# Many Authors can write Many Books
prismo g relation MtoM Author Book --migrate
`
`js
model Author {
id String @id @default(uuid())
name String
createdAt DateTime @default(now())
updatedAt DateTime @updatedAt
books Book[] @relation("AuthorBooks")
}

model Book {
id String @id @default(uuid())
title String
createdAt DateTime @default(now())
updatedAt DateTime @updatedAt
authors Author[] @relation("AuthorBooks")
}
`



🧑‍💻 Contributing

1. Fork the project
2. Create a feature branch
3. Submit a PR
Before submitting, run:
`sh


to link your local changes for testing.


npm link
`
`bash

test commads locally

prismo list models
`

🧩 Issue Templates

Bug report template:

`
Command executed:
prismo [...]

Expected behavior:

Actual behavior:

Prisma schema preview:
``

👨‍💻 Author

Made with ❤️ by Manoj Sharma
Follow the project ⭐ and contribute!

📜 License

MIT License — Free for commercial & personal usage.

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