Add select by action id

models/action.go

@@ -20,3 +20,8 @@ type Action struct {
 func (m *Model) Actions() ([]*Action, error) {
 	return m.SelectActions()
 }
+
+// Action returns a single action from its ID
+func (m *Model) Action(id int) (*Action, error) {
+	return m.SelectActionByID(id)
+}

models/models.go

@@ -4,6 +4,7 @@ package models
 type Store interface {
 	SelectActions() ([]*Action, error)
 	SelectPlans() ([]*Plan, error)
+	SelectActionByID(id int) (*Action, error)
 }
 
 // Model represents a current model item.

models/models_test.go

@@ -6,10 +6,7 @@ import (
 	"testing"
 )
 
-type store interface {
-	SelectActions() ([]*models.Action, error)
-	SelectPlans() ([]*models.Plan, error)
-}
+
 type multiStore struct {
 	actions []*models.Action
 	plans   []*models.Plan
@@ -19,6 +16,10 @@ func (ms *multiStore) SelectActions() ([]*models.Action, error) {
 	return ms.actions, nil
 }
 
+func (ms *multiStore) SelectActionByID(id int) (*models.Action, error) {
+	return ms.actions[0], nil
+}
+
 func (ms *multiStore) SelectPlans() ([]*models.Plan, error) {
 	return ms.plans, nil
 }
@@ -40,4 +41,8 @@ func TestModelActions(t *testing.T) {
 	plans, err := m.Plans()
 	assert.Nil(err)
 	assert.Equal(1, len(plans))
+
+	firstAction, err := m.Action(3)
+	assert.Nil(err)
+	assert.EqualValues(3, firstAction.ActionID)
 }

store/postgres.go

@@ -27,6 +27,15 @@ func (store *postgresStore) SelectActions() ([]*models.Action, error) {
 	return actions, nil
 }
 
+func (store *postgresStore) SelectActionByID(id int) (*models.Action, error) {
+	action := models.Action{}
+	err := store.db.Get(&action, "SELECT action_id, action_description, estimated_chunks, completed_chunks, completed_on, created_at, updated_at, plan_id FROM actions WHERE action_id = ?", id)
+	if err != nil {
+		return nil, err
+	}
+	return &action, nil
+}
+
 func (store *postgresStore) SelectPlans() ([]*models.Plan, error) {
 	plans := make([]*models.Plan, 0)
 	err := store.db.Select(&plans, "SELECT plan_id, plan_date FROM plans")

store/postgres_test.go

@@ -95,6 +95,55 @@ func TestSelectActions(t *testing.T) {
 	}
 }
 
+func TestSelectActionById(t *testing.T) {
+	// set up  test
+	assert := assert.New(t)
+
+	createTime, _ := time.Parse("2006-01-02", "2020-12-31")
+	updateTime, _ := time.Parse("2006-01-02", "2021-01-01")
+	completeTime, _ := time.Parse("2006-01-02", "2021-01-05")
+	idToUse := 1
+	estChunks := 5
+	compChunks := 7
+	desc := "Howdy, partner."
+
+	str, mock := getDbMock(t)
+
+	rows := sqlmock.NewRows([]string{
+		"action_id",
+		"action_description",
+		"estimated_chunks",
+		"completed_chunks",
+		"completed_on",
+		"created_at",
+		"updated_at",
+		"plan_id"}).
+		AddRow(idToUse, desc, estChunks, compChunks, completeTime, createTime, updateTime, idToUse)
+
+	mock.ExpectQuery("^SELECT action_id, action_description, estimated_chunks, completed_chunks, completed_on, created_at, updated_at, plan_id FROM actions WHERE action_id = \\?").
+		WithArgs(1).
+		WillReturnRows(rows)
+
+	// function under test
+	action, err := str.SelectActionByID(1)
+
+	// test results
+	assert.Nil(err)
+
+	assert.EqualValues(idToUse, action.ActionID)
+	assert.Equal(desc, action.ActionDescription)
+	assert.Equal(estChunks, action.EstimatedChunks)
+	assert.Equal(compChunks, action.CompletedChunks)
+	assert.Equal(completeTime, action.CompletedOn)
+	assert.Equal(createTime, action.CreatedAt)
+	assert.Equal(updateTime, action.UpdatedAt)
+	assert.Equal(idToUse, action.PlanID)
+
+	if err := mock.ExpectationsWereMet(); err != nil {
+		t.Errorf("unfulfilled expectations: %s", err)
+	}
+}
+
 func TestErrPlans(t *testing.T) {
 	// set up tests
 	assert := assert.New(t)
@@ -126,3 +175,19 @@ func TestErrActions(t *testing.T) {
 		t.Errorf("unfulfilled expectations: %s", err)
 	}
 }
+
+func TestErrActionByID(t *testing.T) {
+	// set up tests
+	assert := assert.New(t)
+	str, mock := getDbMock(t)
+
+	mock.ExpectQuery("^SELECT action_id, action_description, estimated_chunks, completed_chunks, completed_on, created_at, updated_at, plan_id FROM actions WHERE action_id = \\?").WillReturnError(fmt.Errorf("example error"))
+	// function under test
+	action, err := str.SelectActionByID(1)
+	// test results
+	assert.Nil(action)
+	assert.NotNil(err)
+	if err := mock.ExpectationsWereMet(); err != nil {
+		t.Errorf("unfulfilled expectations: %s", err)
+	}
+}