check data format #109

src/views/LoadView.vue

@@ -74,6 +74,9 @@ export default {
 
         if (dataFormat === 'sqlite') {
           await this.getSqliteDb(dataUrl)
+        } else {
+          this.dataMsg.message = 'Unknown data format'
+          this.dataMsg.type = 'error'
         }
 
         // Loading indicator is not needed anymore

src/views/Main/Workspace/index.vue

@@ -36,7 +36,7 @@ export default {
   },
   async beforeCreate () {
     const schema = this.$store.state.db.schema
-    if (!schema || schema.length === 0) {
+    if ((!schema || schema.length === 0) && this.$store.state.tabs.length === 0) {
       const stmt = [
         '/*',
         ' * Your database is empty. In order to start building charts',