2.5. Interact with Databases

We are going to save the literature information into an XML file database including the AbstractURL, Title, Author, and Abstract variables. Right-click on the 6^th action “Abstract: ***”, and select the “Save Variable …” menu item, it shows:

Click on the [Create a save variable action], it shows:

Select the “XML file” from the “target type: [Database]” drop-down list, enter “saved-abstracts.txt” in the “Save to file: [ ]” input box (it will appear once the “XML file” is selected), and click the “Add” following the “Save Variables:”. It shows:

Enter “AbstractURL” in both the “TargetField” and the “Expression” boxes, click “Add”;

Enter “Title” in both the “TargetField” and the “Expression” boxes, click “Add”;

Enter “Author” in both the “TargetField” and the “Expression” boxes, click “Add”;

Enter “Abstract” in both the “TargetField” and the “Expression” boxes, click [Update] button;

It shows:

Click [Return] and we are done.

Now run the robot, and open the “saved-abstracts.txt” file from the IROBOT installation directory. You can see the abstract information is saved correctly.