A little library that allows you to control web forms through Go code. Currently in development

The following is a basic example of how to set up and use a go form

// Create the form
form := NewForm(http.Request)
form.Action = "/test/form/uri"
form.Method = "POST"

// Add fields
uname := &Field{
    Name:   "username",
    Label:  "Username",
    Type:   "text",
}

form.addField(uname)

You can create a yaml file to represent a form, passing this to builder will create a form with all its fields and validation rules specified, firstly you'll need to make a yaml form file, take a look at example.yml in the source code, after this pass it to the builder:

// Create a new builder
b := NewBuilder("example.yml", http.Request)
// Now the form can be built
b.build()

// Once the form is built you can access it through the builder
b.Form
b.Form.validate()

The form struct will output the form tags, and each field can output the Html representation of itself, for example

form.open()

    for _, field := range form.Fields {
        field.output()
    }

form.close()

The form struct can also validate all fields it has, or you can validate individual fields...

// Upon adding a field the method will check the request
// object for the corresponding field value
form.validate()

// You can validate a single field as well
field.validate()

Both the form and field struct have the Valid boolean flag to signify whether they have passed validation or not

form.validate()

// true
return form.Valid

Remember to add the validation you need to the field, otherwise the result of validate will always be true!

rule := &Required{
    Err: "This field is required!"
}

field.addValidation(rule)

In the above example, if the field has no value and so fails validation it will add an entry into the fields Error list.