personal-site/pkg/form/form.go
2025-03-05 20:01:58 -05:00

53 lines
1.6 KiB
Go

package form
import (
"github.com/labstack/echo/v4"
"github.com/mikestefanello/pagoda/pkg/context"
)
// Form represents a form that can be submitted and validated.
type Form interface {
// Submit marks the form as submitted, stores a pointer to it in the context, binds the request
// values to the struct fields, and validates the input based on the struct tags.
// Returns a validator.ValidationErrors if the form values were not valid.
// Returns an echo.HTTPError if the request failed to process.
Submit(c echo.Context, form any) error
// IsSubmitted returns true if the form was submitted.
IsSubmitted() bool
// IsValid returns true if the form has no validation errors.
IsValid() bool
// IsDone returns true if the form was submitted and has no validation errors.
IsDone() bool
// FieldHasErrors returns true if a given struct field has validation errors.
FieldHasErrors(fieldName string) bool
// SetFieldError sets a validation error message for a given struct field.
SetFieldError(fieldName string, message string)
// GetFieldErrors returns the validation errors for a given struct field.
GetFieldErrors(fieldName string) []string
}
// Get gets a form from the context or initializes a new copy if one is not set.
func Get[T any](ctx echo.Context) *T {
if v := ctx.Get(context.FormKey); v != nil {
return v.(*T)
}
var v T
return &v
}
// Clear removes the form set in the context.
func Clear(ctx echo.Context) {
ctx.Set(context.FormKey, nil)
}
// Submit submits a form.
// See Form.Submit().
func Submit(ctx echo.Context, form Form) error {
return form.Submit(ctx, form)
}