Implement Journal read/write

backend/database/pgDatabase.go

@@ -5,8 +5,10 @@ import (
 	"log"
 	"time"
 
+	"gorm.io/datatypes"
 	"gorm.io/driver/postgres"
 	"gorm.io/gorm"
+	"gorm.io/gorm/clause"
 
 	"github.com/moustachioed/dash/backend/database/models"
 )
@@ -38,10 +40,18 @@ func (db *PgDatabase) migrate() {
 	db.Db.AutoMigrate(&models.Journal{})
 }
 
-func (db *PgDatabase) WriteJournalEntry(dbmodel models.Journal) error {
+func (db *PgDatabase) WriteJournalEntry(entry models.Journal) error {
+	err := db.Db.Clauses(clause.OnConflict{UpdateAll: true}).Create(&entry).Error
+	if err != nil {
+		log.Print("Error writing journal entry to database.")
+		return err
+	}
+
 	return nil
 }
 
 func (db *PgDatabase) GetJournalEntryForDate(date time.Time) (models.Journal, error) {
-	return models.Journal{}, nil
+	entry := models.Journal{Date: datatypes.Date(date)}
+	db.Db.First(&entry)
+	return entry, nil
 }