feat(template): add DB Get functions

internal/database/svgdb.go

@@ -13,6 +13,8 @@ const SVGTABLECREATE string = `
 	);`
 
 const INSERTSVGSQL string = "INSERT INTO svg VALUES (?, ?);"
+const GETSPECIFICSVGSQL string = "SELECT * FROM svg WHERE id = ?;"
+const GETSVGSQL string = "SELECT * FROM svg;"
 
 func InsertSVG(data *svg.TemplateData) error {
 	json, err := json.Marshal(data.TemplateKeys)
@@ -26,3 +28,47 @@ func InsertSVG(data *svg.TemplateData) error {
 
 	return nil
 }
+
+func GetSVG() ([]svg.TemplateData, error) {
+	result, err := database.Query(GETSVGSQL)
+	if err != nil {
+		return nil, err
+	}
+	defer result.Close()
+	templates := make([]svg.TemplateData, 0)
+	for result.Next() {
+		var (
+			id       string
+			keysjson []byte
+			keys     []string
+		)
+		if err := result.Scan(&id, &keysjson); err != nil {
+			return nil, err
+		}
+		if err := json.Unmarshal(keysjson, &keys); err != nil {
+			return nil, err
+		}
+		templates = append(templates, svg.TemplateData{Id: id, TemplateKeys: keys})
+	}
+
+	if err := result.Err(); err != nil {
+		return nil, err
+	}
+	return templates, nil
+}
+
+func GetSpecificSVG(id string) (svg.TemplateData, error) {
+	result := database.QueryRow(GETSPECIFICSVGSQL, id)
+
+	var (
+		keysjson []byte
+		keys     []string
+	)
+	if err := result.Scan(&id, &keysjson); err != nil {
+		return svg.TemplateData{}, err
+	}
+	if err := json.Unmarshal(keysjson, &keys); err != nil {
+		return svg.TemplateData{}, err
+	}
+	return svg.TemplateData{Id: id, TemplateKeys: keys}, nil
+}