add not found error

add checks for if something actually exists in db

storage/follows.go

@@ -18,6 +18,11 @@ type Follow struct {
 }
 
 func (s *Storage) GetFollowersFor(url string) ([]Follow, error) {
+	var pHit int64
+	s.Db.Where("url = ?", url).Count(&pHit)
+	if pHit <= 0 {
+		return nil, ErrNotFound
+	}
 	var followed *Person = &Person{}
 	s.Db.Table("people").First(&followed, "url = ?", url)
 	var f []Follow = make([]Follow, 0)

storage/person.go

@@ -57,3 +57,15 @@ func (pdb *Person) IntoAPPerson() (*astreams.Person, error) {
 	actor.PreferredUsername = pdb.Name
 	return nil, errors.New("unimplemented")
 }
+
+// Gets a person from the db by name
+func (s *Storage) GetPersonByName(name string) (*Person, error) {
+	var nrFound int64
+	s.Db.Table("people").Where("name = ?", name).Count(&nrFound)
+	if nrFound <= 0 {
+		return nil, ErrNotFound
+	}
+	var p Person
+	s.Db.Table("people").Where("name = ?", name).First(&p)
+	return &p, nil
+}

storage/storage.go

@@ -11,6 +11,7 @@
 package storage
 
 import (
+	"errors"
 	"fmt"
 
 	"gitlab.com/mstarongitlab/linstrom/config"
@@ -18,6 +19,8 @@ import (
 	"gorm.io/gorm"
 )
 
+var ErrNotFound = errors.New("entry not found")
+
 type Storage struct {
 	Db *gorm.DB
 }