Struct Builder 

pub struct Builder { /* private fields */ }

Constructs a Schema from an app-level schema and driver capabilities.

The builder generates the database-level schema (tables, columns, indices) and the mapping layer that connects app fields to database columns. Call build to produce the final, validated Schema.

Examples

use toasty_core::schema::Builder;

let schema = Builder::new()
    .table_name_prefix("myapp_")
    .build(app_schema, &capability)
    .expect("valid schema");

Implementations

impl Builder

pub fn new() -> Self

Creates a new Builder with default settings.

Examples

use toasty_core::schema::Builder;

let builder = Builder::new();

pub fn table_name_prefix(&mut self, prefix: &str) -> &mut Self

Sets a prefix that will be prepended to all generated table names.

This is useful for multi-tenant setups or avoiding name collisions.

Examples

use toasty_core::schema::Builder;

let mut builder = Builder::new();
builder.table_name_prefix("myapp_");

pub fn build(&self, app: Schema, db: &Capability) -> Result<Schema>

Builds the complete Schema from the given app schema and driver capabilities.

This method:

1. Verifies each model against the driver’s capabilities
2. Generates field-level constraints (e.g., VARCHAR length limits)
3. Creates database tables, columns, and indices
4. Builds the bidirectional mapping between models and tables
5. Validates the resulting schema

Errors

Returns an error if the schema is invalid (e.g., duplicate index names, unsupported types, missing references).

Examples

use toasty_core::schema::Builder;

let schema = Builder::new()
    .build(app_schema, &capability)?;

Trait Implementations

impl Debug for Builder

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Builder

fn default() -> Self

Returns the “default value” for a type.