func ExampleIsValid() {
/*
*type UserForm struct {
* *forms.DefaultForm
* Username, Email *forms.StringField
*}
*
*func (form *UserForm) CleanEmail(f forms.FormField) {
* field := f.(*forms.StringField)
* naiveEmailPattern := regexp.MustCompile(`[\w.-]+@[\w.-]\.(com|net|org)`)
* if !naiveEmailPattern.MatchString(field.Value) {
* field.SetError("Email must be an email")
* }
*}
*/
form := &UserForm{}
forms.Init(form, nil)
forms.Populate(form, map[string]interface{}{
"Username": "******",
"Email": "clearly not an email address",
})
fmt.Println(forms.IsValid(form))
fmt.Println(form.Email.Error())
// Output:
// false
// Email must be an email
}
func ExampleInit() {
type ArticleForm struct {
*forms.DefaultForm
Title, Body *forms.StringField
AuthorId *forms.IntField
}
form := &ArticleForm{}
forms.Init(form, func(f forms.Form) {
form := f.(*ArticleForm)
form.AuthorId.Required = false
})
forms.Populate(form, map[string]interface{}{
"Title": "Mission: Stop Dr. Claw",
})
fmt.Println(forms.IsValid(form))
fmt.Println(form.AuthorId.Error())
fmt.Println(form.Body.Error())
// Output:
// false
// <nil>
// This field is required
}
func ExampleCopy() {
type Invoice struct {
Client, Notes string
Paid bool
Number int
}
type InvoiceForm struct {
*forms.DefaultForm
Client, Notes *forms.StringField
Paid *forms.BoolField
Number *forms.IntField
}
form := &InvoiceForm{}
forms.Init(form, nil)
forms.Populate(form, map[string]interface{}{
"Client": "M.A.D.",
"Notes": "Some day, Gadget, some day...",
"Paid": "1",
"Number": 23,
})
fmt.Println(forms.IsValid(form))
invoice := &Invoice{}
forms.Copy(form, invoice)
fmt.Println(invoice.Client)
fmt.Println(invoice.Notes)
fmt.Println(invoice.Paid)
fmt.Println(invoice.Number)
// Output:
// true
// M.A.D.
// Some day, Gadget, some day...
// true
// 23
}