Completed truss code gen for generating model requests and crud.

example-project/internal/project/project.go

@@ -1,162 +0,0 @@
-package project
-
-import (
-	"context"
-	"fmt"
-	"time"
-
-	"github.com/jmoiron/sqlx"
-	"github.com/pkg/errors"
-	"gopkg.in/DataDog/dd-trace-go.v1/ddtrace/tracer"
-	"gopkg.in/mgo.v2"
-	"gopkg.in/mgo.v2/bson"
-)
-
-const projectsCollection = "projects"
-
-var (
-	// ErrNotFound abstracts the mgo not found error.
-	ErrNotFound = errors.New("Entity not found")
-
-	// ErrInvalidID occurs when an ID is not in a valid form.
-	ErrInvalidID = errors.New("ID is not in its proper form")
-)
-
-// List retrieves a list of existing projects from the database.
-func List(ctx context.Context, dbConn *sqlx.DB) ([]Project, error) {
-	span, ctx := tracer.StartSpanFromContext(ctx, "internal.project.List")
-	defer span.Finish()
-
-	p := []Project{}
-
-	f := func(collection *mgo.Collection) error {
-		return collection.Find(nil).All(&p)
-	}
-
-	if _, err := dbConn.ExecContext(ctx, projectsCollection, f); err != nil {
-		return nil, errors.Wrap(err, "db.projects.find()")
-	}
-
-	return p, nil
-}
-
-// Retrieve gets the specified project from the database.
-func Retrieve(ctx context.Context, dbConn *sqlx.DB, id string) (*Project, error) {
-	span, ctx := tracer.StartSpanFromContext(ctx, "internal.project.Retrieve")
-	defer span.Finish()
-
-	if !bson.IsObjectIdHex(id) {
-		return nil, ErrInvalidID
-	}
-
-	q := bson.M{"_id": bson.ObjectIdHex(id)}
-
-	var p *Project
-	f := func(collection *mgo.Collection) error {
-		return collection.Find(q).One(&p)
-	}
-	if _, err := dbConn.ExecContext(ctx, projectsCollection, f); err != nil {
-		if err == mgo.ErrNotFound {
-			return nil, ErrNotFound
-		}
-		return nil, errors.Wrap(err, fmt.Sprintf("db.projects.find(%s)", q))
-	}
-
-	return p, nil
-}
-
-// Create inserts a new project into the database.
-func Create(ctx context.Context, dbConn *sqlx.DB, cp *NewProject, now time.Time) (*Project, error) {
-	span, ctx := tracer.StartSpanFromContext(ctx, "internal.project.Create")
-	defer span.Finish()
-
-	// Mongo truncates times to milliseconds when storing. We and do the same
-	// here so the value we return is consistent with what we store.
-	now = now.Truncate(time.Millisecond)
-
-	p := Project{
-		ID:           bson.NewObjectId(),
-		Name:         cp.Name,
-		Cost:         cp.Cost,
-		Quantity:     cp.Quantity,
-		DateCreated:  now,
-		DateModified: now,
-	}
-
-	f := func(collection *mgo.Collection) error {
-		return collection.Insert(&p)
-	}
-	if _, err := dbConn.ExecContext(ctx, projectsCollection, f); err != nil {
-		return nil, errors.Wrap(err, fmt.Sprintf("db.projects.insert(%v)", &p))
-	}
-
-	return &p, nil
-}
-
-// Update replaces a project document in the database.
-func Update(ctx context.Context, dbConn *sqlx.DB, id string, upd UpdateProject, now time.Time) error {
-	span, ctx := tracer.StartSpanFromContext(ctx, "internal.project.Update")
-	defer span.Finish()
-
-	if !bson.IsObjectIdHex(id) {
-		return ErrInvalidID
-	}
-
-	fields := make(bson.M)
-
-	if upd.Name != nil {
-		fields["name"] = *upd.Name
-	}
-	if upd.Cost != nil {
-		fields["cost"] = *upd.Cost
-	}
-	if upd.Quantity != nil {
-		fields["quantity"] = *upd.Quantity
-	}
-
-	// If there's nothing to update we can quit early.
-	if len(fields) == 0 {
-		return nil
-	}
-
-	fields["date_modified"] = now
-
-	m := bson.M{"$set": fields}
-	q := bson.M{"_id": bson.ObjectIdHex(id)}
-
-	f := func(collection *mgo.Collection) error {
-		return collection.Update(q, m)
-	}
-	if _, err := dbConn.ExecContext(ctx, projectsCollection, f); err != nil {
-		if err == mgo.ErrNotFound {
-			return ErrNotFound
-		}
-		return errors.Wrap(err, fmt.Sprintf("db.customers.update(%s, %s)", q, m))
-	}
-
-	return nil
-}
-
-// Delete removes a project from the database.
-func Delete(ctx context.Context, dbConn *sqlx.DB, id string) error {
-	span, ctx := tracer.StartSpanFromContext(ctx, "internal.project.Delete")
-	defer span.Finish()
-
-	if !bson.IsObjectIdHex(id) {
-		return ErrInvalidID
-	}
-
-	q := bson.M{"_id": bson.ObjectIdHex(id)}
-
-	f := func(collection *mgo.Collection) error {
-		return collection.Remove(q)
-	}
-	if _, err := dbConn.ExecContext(ctx, projectsCollection, f); err != nil {
-		if err == mgo.ErrNotFound {
-			return ErrNotFound
-		}
-		return errors.Wrap(err, fmt.Sprintf("db.projects.remove(%v)", q))
-	}
-
-	return nil
-}