Add the ability to remove cards

sevenkeys/database/remove.go

@@ -0,0 +1,50 @@
+package database
+
+import "database/sql"
+
+func RemoveFromBinder(db *sql.DB, location CardLocation) error {
+	query := `UPDATE CardStorageLocation SET CardPrintingId = NULL WHERE Id = ?;`
+
+	update, err := db.Prepare(query)
+	defer update.Close()
+	if err != nil {
+		return err
+	}
+
+	_, err = update.Exec(location.Id)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func RemoveFromBox(db *sql.DB, location CardLocation) error {
+	deleteQuery := `DELETE FROM CardStorageLocation WHERE Id = ?;`
+
+	del, err := db.Prepare(deleteQuery)
+	defer del.Close()
+	if err != nil {
+		return err
+	}
+
+	_, err = del.Exec(location.Id)
+	if err != nil {
+		return err
+	}
+
+	updateQuery := `UPDATE CardStorageLocation SET Position = Position - 1 WHERE Position > 5;`
+
+	update, err := db.Prepare(updateQuery)
+	defer update.Close()
+	if err != nil {
+		return err
+	}
+
+	_, err = update.Exec(location.Id)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}

sevenkeys/database/storagearea.go

@@ -2,6 +2,9 @@ package database
 
 import "database/sql"
 
+var StorageAreaTypeBinder string = "Binder"
+var StorageAreaTypeBox string = "Box"
+
 type StorageArea struct {
 	Id          int
 	Name        string
@@ -46,3 +49,17 @@ func InsertStorageArea(db *sql.DB, storageArea StorageArea) error {
 
 	return nil
 }
+
+func GetStorageAreaTypeById(db *sql.DB, storageAreaId int) (string, error) {
+	var storageType string
+
+	query := `SELECT StorageType FROM StorageArea WHERE Id = ?;`
+	row := db.QueryRow(query, storageAreaId)
+
+	err := row.Scan(&storageType)
+	if err != nil {
+		return storageType, err
+	}
+
+	return storageType, nil
+}

sevenkeys/logic/remove.go

@@ -0,0 +1,27 @@
+package logic
+
+import (
+	"database/sql"
+	"errors"
+
+	"sevenkeys/database"
+)
+
+var UnrecognizedStorageAreaTypeError error = errors.New("Unrecognized storage area type.")
+
+func RemoveFromStorage(db *sql.DB, location database.CardLocation) error {
+	locationType, err := database.GetStorageAreaTypeById(db, location.Id)
+	if err != nil {
+		return err
+	}
+
+	if locationType == database.StorageAreaTypeBinder {
+		database.RemoveFromBinder(db, location)
+	} else if locationType == database.StorageAreaTypeBox {
+		database.RemoveFromBox(db, location)
+	} else {
+		return UnrecognizedStorageAreaTypeError
+	}
+
+	return nil
+}