schema_parser

Schema Parser

Parses schema.gleam files to extract table definitions. This parser handles the list-based schema definition format:

table(name, [ id(), string(“name”), string(“bio”) |> nullable(), boolean(“is_active”) |> default(DefaultBool(True)), timestamps(), ])

Types

Column

</>

Represents a database column with its name, type, nullability, default value, and optional rename tracking.

pub type Column {
  Column(
    name: String,
    column_type: ColumnType,
    nullable: Bool,
    default: option.Option(DefaultValue),
    renamed_from: option.Option(String),
  )
}

Constructors

Column(
  name: String,
  column_type: ColumnType,
  nullable: Bool,
  default: option.Option(DefaultValue),
  renamed_from: option.Option(String),
)

ColumnType

</>

Represents the data type of a column. Maps to appropriate SQL types for each database driver.

pub type ColumnType {
  Id
  String
  Text
  Int
  BigInt
  Float
  Boolean
  Timestamp
  UnixTimestamp
  Date
  Json
  Uuid
  Foreign(String)
}

Constructors

```
Id
```
```
String
```
```
Text
```
```
Int
```
```
BigInt
```
```
Float
```
```
Boolean
```
```
Timestamp
```
```
UnixTimestamp
```
```
Date
```
```
Json
```
```
Uuid
```
```
Foreign(String)
```

DefaultValue

</>

Represents the default value for a column. Supports boolean, string, integer, float, current timestamp, current unix timestamp, and null defaults.

pub type DefaultValue {
  DefaultBool(Bool)
  DefaultString(String)
  DefaultInt(Int)
  DefaultFloat(Float)
  DefaultNow
  DefaultUnixNow
  DefaultAutoUuid
  DefaultNull
}

Constructors

```
DefaultBool(Bool)
```
```
DefaultString(String)
```
```
DefaultInt(Int)
```
```
DefaultFloat(Float)
```
```
DefaultNow
```
```
DefaultUnixNow
```
```
DefaultAutoUuid
```
```
DefaultNull
```

Table

</>

Represents a database table with a name and list of columns.

pub type Table {
  Table(name: String, columns: List(Column))
}

Constructors

Table(name: String, columns: List(Column))

Values

columns

</>

pub fn columns(table: Table) -> List(Column)

Get columns in definition order from a table.

parse

</>

pub fn parse(content: String) -> Result(Table, String)

Parse a schema.gleam file content into a Table structure. Extracts the table name from pub const name = "..." and parses the column definitions from the table(name, [...]) call.