Fixed Payment gateway - Razorpay

[ArchanRD]

Pull Request Checklist

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Description of Changes

Fixed razorpay form. Now it opens whenever user is redirected to pay.php.
Other issues which was dependent to successfully run the payment gateway are addressed below:
1. Restaurant id missing:
Restaurant id was not sent properly. While running the orders query on verify.php, it was throwing the following error:

To fix this, I imported the rest_id into a variable from the session in file checkout.php.

$rid = $_SESSION['rest_id'];

2. No default value for order in orders table:
The order attribute is set to NOT NULL and no default value if provided in the query. Hence resulted in throwing error after payment is done.

To fix this, the order value if passed in the query. It is properly commented in the code.

3. Wrong redirect - Trackorder.php:
Here there was a typo error in the file name track_order.php which was Track_order.php earlier. This resulted in a 404 page not found error.

File name is corrected.

Now the flow is smooth and error free. A user can start from

• Selecting a restaurant
• Add items to cart
• Fill checkout details
• Pay using Razorpay
• Get redirected and view orders on track_orders.php

Type of Change

• Bug fix
• New feature
• Documentation update
• Refactoring
• Other (please describe):

Related Issue

Closes: #75

Testing

Testing is performed completely, the workflow is smooth and error free.

Checklist

• I have tested my changes and ensured they work as expected.
• I have added necessary documentation (if applicable).
• I have reviewed my code for style and linting issues.
• I have ensured that any dependent changes are merged before this PR.

Additional Notes

@Vimall03 Please have a look at this PR. The issue is resolved.

[github-actions]

🚀 Thank you for contributing to this project, your support is much appreciated.

Stay awesome! 😎

[ArchanRD]

Hey! @Vimall03 could please add gssoc-ext and hacktoberfest labels on the pr as well?

[Vimall03]

Sorry @ArchanRD, I have updated the labels now

[ArchanRD]

Appreciate it! 🙌🏻