# `MishkaGervaz.Form.Verifiers.ValidateFields`
[🔗](https://github.com/mishka-group/mishka_gervaz/blob/v0.0.1-alpha.3/lib/mishka_gervaz/form/verifiers/validate_fields.ex#L1)

Validates the `fields` section of MishkaGervaz form DSL.

Four checks, in order:

  1. Each field name maps to a resource attribute, relationship,
     calculation, or aggregate — unless the field is marked `virtual`.
  2. `depends_on` references a field declared in the same form.
  3. Virtual fields of type `:relation` or `:select` declare a `resource`.
  4. `nested_field` entries appear only inside `:nested` fields.

See `MishkaGervaz.Form.Dsl.Fields`,
`MishkaGervaz.Form.Entities.Field`,
`MishkaGervaz.Form.Entities.NestedField`,
`MishkaGervaz.Form.Verifiers.Helpers`, and sibling verifiers.

---

*Consult [api-reference.md](api-reference.md) for complete listing*