Number

Numeric field for integers or floating-point values.

SQLite Storage

REAL column. Empty values are stored as NULL.

Definition

crap.fields.number({
    name = "price",
    required = true,
    default_value = 0,
    admin = {
        placeholder = "0.00",
    },
})

Multi-Value (has_many)

Store multiple numbers as a JSON array in a TEXT column. Renders as a tag-style input in the admin UI.

crap.fields.number({
    name = "scores",
    has_many = true,
    min = 0,
    max = 100,
    max_rows = 5,
})

• Values are stored as ["10","20","30"] in the TEXT column
• min / max validate each individual value
• min_rows / max_rows validate the count of values
• Type generation maps to number[] / Vec<f64> / list[float] etc.

Step

Set admin.step to control the number input step attribute:

crap.fields.number({
    name = "price",
    admin = { step = "0.01" },
})

Valid values: "1" (integers only), "0.01" (cents), "any" (no step constraint). Defaults to browser default ("1").

Admin Rendering

Renders as an <input type="number"> element. When has_many = true, renders as a tag input where users type and press Enter to add number chips.

Value Coercion

String values from form submissions are parsed as f64. If parsing fails, NULL is stored.