Fix bug #400, feature create-drop schema

[yariksav]

Proposed changes

Fixed bug with seeds #400
My apologize, I've found unmerged changes in my dev branch
You asked to add some test for it #283, #286. I've added test and ran it with postgresql database

Types of changes

What types of changes does your code introduce?

Put an x in the boxes that apply

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist

Put an x in the boxes that apply. You can also fill these out after creating the PR. If you're unsure about any of them, don't hesitate to ask. We're here to help! This is simply a reminder of what we are going to look for before merging your code.

• I have read the CONTRIBUTING doc
• Lint and unit tests pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works.
• I have added necessary documentation (if appropriate)

Further comments

If this is a relatively large or complex change, kick off the discussion by explaining why you chose the solution you did and what alternatives you considered, etc...

[coveralls]

Coverage decreased (-0.2%) to 96.254% when pulling e4e1e1d on yariksav:develop into 98c14e6 on adonisjs:develop.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.