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https://github.com/raresail/prisma-mapper

Empower Your Prisma Schema with Camel Case and Customized Mapping! The CLI adds @map @@map, @updatedAt and more!!
https://github.com/raresail/prisma-mapper

camel-case camelcase cicd cli generate generator json linux macos map mapper nodejs prisma schema updated-at updatedat windows

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Empower Your Prisma Schema with Camel Case and Customized Mapping! The CLI adds @map @@map, @updatedAt and more!!

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# @raresail/prisma-mapper

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---

A CLI that adds @map and @@map based on a json

### Installation

### NPM

```
npm install -g @raresail/prisma-mapper
```

### Yarn

```
yarn global add @raresail/prisma-mapper
```

### Features

- Adds `@map` and `@@map`
- Keeps the `@db.` attributes for fields
- Adds the `@updatedAt` for fields with the name `updated_at` or `updatedAt`
- The prisma schema is formatted by the `@prisma/internals` after generation
- The cli does not modify the current schema and generates a new one with the information from the current one
- `.pmignore` Can be used to avoid adding the `@map`/`@@map` for specific fields when running the `map` command

### Node Versions

| Version | Supported |
| ------- | --------- |
| <= 19.x | ❌ |
| 20.x | ✅ |
| 21.x | ❌ |
| >= 22.x | ✅ |

### Getting Started

If the prisma schema is often pulled you can use the cli like

```bash
yarn prisma db pull --force
&& yarn prisma-mapper generate
&& yarn prisma-mapper map
&& yarn prisma generate
```

or for `camelCase` by default

```bash
yarn prisma db pull --force
&& yarn prisma-mapper map --camel
&& yarn prisma generate
```

With db pull force you get the latest schema updates and
force overwrites the file.

The generate command creates a json called `prisma-mapper.json` in the root,
if the json already exists it adds in it any new fields/models. **`(NOT FOR --camel option)`**

```bash
yarn prisma-mapper generate
```

The json looks like the following:

- The hasMap is added by generate if the prisma model has already a `@@map`
- The name is to add `@@map` for a model name
- In the fields object is to add `@map` for each field

```json
{
"model": {
"hasMap": false,
"name": null,
"fields": {
"field_name_1": null,
"field_name_2": null
}
}
}
```

The map command modifies the `schema.prisma` file and adds the `@map` and `@@map`
for each field and model, if the field/model-name is in the json file, the
field/model will be renamed to the new name.

```bash
yarn prisma-mapper map
```

### Options

Both 2 commands have an option `--schema "new schema path` to use the schema from a different location

#### For both commands

- `--schema "new schema path`
- is to use the schema from a different location
- `--camel`
- for map it does the mapping without a json file
- for generate it defaults the namings to camel case in the generated json

#### Map options

- `-o --output "output schema path"`
- after mapping save the schema to another location

### Ignore File

Example for the `.pmignore` file

```pmignore
enum_ignore_s_contents.someValue
enum_ignore_contents.*
enum_ignore_model

model_ignore_s_contents.updated_at
model_ignore_s_contents.created_at
model_ignore_s_contents.enum_three
model_ignore_contents.*
model_ignore
```