Method PostValues

context/context.go:1894–1933

PostValues returns all the parsed form data from POST, PATCH, or PUT body parameters based on a "name" as a string slice. The default form's memory maximum size is 32MB, it can be changed by the `iris#WithPostMaxMemory` configurator at main configuration passed on `app.Run`'s second argument. In a

(name string)

// Look ErrEmptyForm, ErrNotFound and ErrEmptyFormField respectfully.
// See `PostValueMany` method too.
func (ctx *Context) PostValues(name string) ([]string, error) {
	_, ok := ctx.form()
	if !ok {
		if !ctx.app.ConfigurationReadOnly().GetFireEmptyFormError() {
			return nil, nil
		}

		return nil, ErrEmptyForm // empty form.
	}

	values, ok := ctx.request.PostForm[name]
	if !ok {
		return nil, ErrNotFound // field does not exist
	}

	if len(values) == 0 ||
		// Fast check for its first empty value (see below).
		strings.TrimSpace(values[0]) == "" {
		return nil, fmt.Errorf("%w: %s", ErrEmptyFormField, name)
	}

	for _, value := range values {
		if value == "" { // if at least one empty value, then perform the strip from the beginning.
			result := make([]string, 0, len(values))
			for _, value := range values {
				if strings.TrimSpace(value) != "" {
					result = append(result, value) // we store the value as it is, not space-trimmed.
				}
			}

			if len(result) == 0 {
				return nil, fmt.Errorf("%w: %s", ErrEmptyFormField, name)
			}

			return result, nil
		}
	}

	return values, nil
}

// PostValueMany is like `PostValues` method, it returns the post data of a given key.
// In addition to `PostValues` though, the returned value is a single string