Disabling or cancellation of crowd funding campain vs closing or accepting investment

[KarimChabrak]

User shall be able to disable or cancel a crowd funding campain.

In this case, all related transactions shall be reversed.

To ensure that this is possible.

• Transactions of coins from project crowdfunding account to somewhere else
• transactions of project coins from investors accounts to somewhere else are only possible when crowdfunding campain is CLOSED by project owner.

Closing a campain means commit from campain initiator to start project. This action can be initiated either during the campain or latest 3 days after campain deadline. Is nothing happens after deadline, campain is cancelled and investment are reversed.

As long campain is ongoing, Investor shall also be able to revert his investment.

[gdalyy]

cc @pcP1r4t3

[KarimChabrak]

Maybe we should first only implement following.

User can only transfer coins from funding account when they select "accept investment".

As long they did not "accept investment", they can "Cancel campaign".

So two alternatives:

• Accept investment: Enables transfer for funding account to other accounts.
• Cancel campaign: Disables the campain and reverst all transactions.

3 days after deadline, campains are cancelled in case user do not click on accept invest.

[KarimChabrak]

Following use case fails: User A invests in space ABC and gets ABC coins. Then he sends X ABC coins to user B.

When space ABC cancels the campaign,

• User A has now -X ABC coins (which is not feasible in Blockchain).
• And when looking into ABC Accounts overview, i get following messsage (see below)

1. in /var/www/coinsence_dev/protected/modules/xcoin/widgets/AssetDistribution.php at line 48 39404142434445464748495051525354555657 $id = $contentContainer->contentContainerRecord->id;

       if (!isset($result[$id])) {
           $result[$id]['record'] = $contentContainer;
           $result[$id]['balance'] = 0;
       }
   
       $result[$id]['balance'] += $balance->balance;
       $result[$id]['percent'] = round(($result[$id]['balance'] / $issuedAmount)*100,4);            
   }
   
   usort($result, function ($a, $b) {
       return $b['balance'] - $a['balance'];
   });
   
   return $result;

   }

2. in /var/www/coinsence_dev/protected/modules/xcoin/widgets/AssetDistribution.php at line 48 – yii\base\ErrorHandler::handleError(2, 'Division by zero', '/var/www/coinsence_dev/protected...', 48, ...) 42434445464748495051525354 if (!isset($result[$id])) { $result[$id]['record'] = $contentContainer; $result[$id]['balance'] = 0; }

       $result[$id]['balance'] += $balance->balance;
       $result[$id]['percent'] = round(($result[$id]['balance'] / $issuedAmount)*100,4);            
   }
   
   usort($result, function ($a, $b) {
       return $b['balance'] - $a['balance'];
   });

3. in /var/www/coinsence_dev/protected/modules/xcoin/widgets/AssetDistribution.php at line 25 – humhub\modules\xcoin\widgets\AssetDistribution::getDistributionArray(humhub\modules\xcoin\models\Asset) 19202122232425262728293031 @var Asset / public $asset;

   public function run() { return $this->render('asset-distribution', ['distributions' => self::getDistributionArray($this->asset)]); }

   public static function getDistributionArray(Asset $asset) { $result = [];

4. in /var/www/coinsence_dev/protected/humhub/components/Widget.php at line 58 – humhub\modules\xcoin\widgets\AssetDistribution::run() 52535455565758596061626364 ob_implicit_flush(false); try { / @var $widget Widget / $widget = Yii::createObject($config); $out = ''; if ($widget->beforeRun()) { $result = $widget->run(); $out = $widget->afterRun($result); } } catch (\Exception $e) { // close the output buffer opened above if it has not been closed already if (ob_get_level() > 0) { ob_end_clean();

5. in /var/www/coinsence_dev/protected/modules/xcoin/views/overview/index_space.php at line 55 – humhub\components\Widget::widget(['asset' => humhub\modules\xcoin\models\Asset, 'class' => 'humhub\modules\xcoin\widgets\Ass...']) 495051525354555657 <?php endif; ?>

[KarimChabrak]

I propose to make the buttons "cancel campaign" and "accept investment" more accessible to user and not hide them under the "Edit" button.

See here

[KarimChabrak]

@gdalyy

When campain is cancelled, the funding account and the issued coins disappear.

In blockchain this is a bit complex (burning mintet ERC20 token).

I propose to not remove the funding account. Just leave this account with the issued coin in the space. Space admin can transfer them somewhere else and use them for other purpose.

[KarimChabrak]

When accepting investment,

1. The campaign is removed from public crowdfunding place.
2. The campaign is still visible in the space, people can still invest and all button in the top disappear.

I propose that campain is still visible also in the public funding place after accepting invest. User need to close the campain manually.

After "Accepting investment" User has only one button called "Close campaign". When he clicks on it, the campaing is closed, which means

• campain is not any more visble in the public funding place
• and in the space funding place, it is market das closed and nobody can invest anymore.

[KarimChabrak]

@gdalyy

REGARDING BLOCKING INVESTOTR TRANSACTION.

Here we have to take care not to completely block the investor account.

The problem, as we are using Blockchain, we can not prevent the transaction except we implement the whole process as smart contract.

This issue is not urgent, as currently user are investing from ccc space and they can not make direct transactions. Maybe we can open here a new issue and leave it for a later stage.

To avoid -X balance, maybe check investor balance first and then send back only what is still available. .

[KarimChabrak]

Dear @gdalyy

I will close this issue. The 2 new issue which are not urgent will be created as separate issues: https://github.com/Coinsence/meta/issues/159 https://github.com/Coinsence/meta/issues/160