VILLASweb-backend-go/routes/scenario/scenario_validators.go

package scenario

import (
	"github.com/jinzhu/gorm/dialects/postgres"
	"gopkg.in/go-playground/validator.v9"
)

var validate *validator.Validate

type validNewScenario struct {
	Name            string         `form:"Name" validate:"required"`
	Running         bool           `form:"Running" validate:"omitempty"`
	StartParameters postgres.Jsonb `form:"StartParameters" validate:"required"`
}

type validUpdatedScenario struct {
	Name            string         `form:"Name" validate:"omitempty"`
	Running         bool           `form:"Running" validate:"omitempty"`
	StartParameters postgres.Jsonb `form:"StartParameters" validate:"omitempty"`
}

type addScenarioRequest struct {
	validNewScenario `json:"scenario"`
}

type updateScenarioRequest struct {
	validUpdatedScenario `json:"scenario"`
}

func (r *addScenarioRequest) validate() error {
	validate = validator.New()
	errs := validate.Struct(r)
	return errs
}

func (r *validUpdatedScenario) validate() error {
	validate = validator.New()
	errs := validate.Struct(r)
	return errs
}

func (r *addScenarioRequest) createScenario() Scenario {
	var s Scenario

	s.Name = r.Name
	s.Running = r.Running
	s.StartParameters = r.StartParameters

	return s
}

func (r *updateScenarioRequest) updatedScenario(oldScenario Scenario) (Scenario, error) {
	// Use the old Scenario as a basis for the updated Scenario `s`
	s := oldScenario

	if r.Name != "" {
		s.Name = r.Name
	}

	s.Running = r.Running
	// TODO check for empty start parameters?
	s.StartParameters = r.StartParameters

	return s, nil
}