add delete

service/dadjoke.go

@@ -1,6 +1,7 @@
 package service
 
 import (
+	"errors"
 	"math/rand"
 
 	"gorm.io/gorm"
@@ -21,6 +22,45 @@ func GetRandomDadJoke(db *gorm.DB) (string, error) {
 	return randomElement.JOKE, err
 }
 
+func PostDadJoke(db *gorm.DB, joke model.DadJoke) error {
+	jokes, err := getDadJokes(db)
+	if err != nil {
+		return err
+	}
+
+	found := false
+	for _, i := range jokes {
+		if i.JOKE == joke.JOKE {
+			found = true
+			break
+		}
+	}
+
+	if found {
+		return errors.New("Joke is already in database")
+	} else {
+		err = db.Create(&joke).Error
+		if err != nil {
+			return err
+		}
+		return nil
+	}
+}
+
+func DeleteDadJoke(db *gorm.DB, joke model.DadJoke) error {
+	check := &model.DadJoke{}
+	db.Where("joke = ?", joke.JOKE).First(check)
+	if check.JOKE == "" {
+		return errors.New("Joke does not exist")
+	}
+
+	err := db.Where("joke = ?", joke.JOKE).Delete(joke).Error
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
 func getDadJokes(db *gorm.DB) ([]model.DadJoke, error) {
 	req := []model.DadJoke{}