Smart Contract Require Check in Create Campaign

[srikanth-programmer]

The line

require(
    campaign.deadline < block.timestamp,
    "The deadline should be a future date"
);

is going to return 0 in 0 < block.timestamp will always true

the correct line of code would be

require(
    _deadline >= block.timestamp,
    "The deadline should be a future date"
);

in this case we are excepting the deadline to be in future if not revert the method