Issue 584 final

[sandeeppatel2001]

issue #584

Previously bug occur when try to add the new customer with same company name that we have created earlier and deleted it. But Now we can created previously deleted customer also .
For Resolving the issue , if data is present in database we have to update the date instead of saving again . if data is not present in database then we can save data .
now Everything is working perfectly without coming any error.

see video give below

clideo_editor_065f6609e11e4905a4c04373f0b7282d.mp4

Checklist

• I have tested these changes
• I have updated the relevant documentation
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the codebase
• My changes generate no new warnings or errors
• The title of my pull request is clear and descriptive