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Onlinepayment-Module

Configuration

Payrexx_account

The config entity Payrexx_account is used to hold the credentials of a payrexx account. One payrexx account must always be declared as default_account. If no Payrexx_account is explicitly configured (e.g. on a Payment_configuration) the default_account is used.

The API Key and “Payrexx instance” must be set using the provided action. The action checks the credentials directly with payrexx and activates the Payrexx_account. It’s not possible to activate an account without valid credentials.

Payment_method

The Payment_method entity is used to store available payment methods (e.g. VISA, Mastercard, …). The optional field logo_url may be used to set a logo url. There is an action to import all active payment methods from the current standard Payrexx_account.

Payment_type

Payment_type defines how a configured Payment_method works. If the Payment_type is online_payment, online payment will be initialised. If a Payment_type is create_order, it will automatically create an order.

Payment_configuration

The payment configuration is used to simplify the configuration process. They provide a central place to configure payment methods / related accounts. On events where online payment should be enabled, these payment configurations can be selected in a dropdown.

Event-Registration Payment-Flow

Registration

The user registers to an event using the corresponding widget. If the user presses the “register” button, the entered information is submitted and the registration is created.

Add Billing Positions / Create Order

There are two listeners RegistrationEntityListener and CopyBillingPositionEntityListener that copy billing positions from Registration_answer_option and Event to the registration.

After those listeners the CreateOnlinepaymentOrderListener is called. This listener directly creates an order for a registration. The listener only creates orders if billing position exist (one of the listeners above has copied billing positions to this registration) and if a Payment_configuration with at least one Payment_method with a Payment_type that has the create_order flag is linked with the related Event.

The Order_source of these orders is set to online.

Payment Overview

After registering, the frontend checks if e-payment is installed (module check) and it checks whether the CreateOnlinepaymentOrderListener created an order. If so, a payment overview page is displayed. To display the page the PaymentProviderActionResource is called to load order values and a list of all available payment methods.

If the user selects a payment method that is not linked to payrexx (e.g. “Zahlung auf Rechnung”). An empty page with the visibility state `` success`` is displayed.

If the user selects a payrexx payment method, the payrexx payment is initialised.

Initialise Payment

To initialise a Payrexx payment the PayrexxGatewayService.createGatewayForOrder method is used. The method uses an order and a payment method to create a Payrexx Gateway using the gateway_api with the payrexx_java library. If the Payrexx Gateway was created successfully, this method will return the link to the gateway.

We currently send the following information when creating a gateway:

Parameter	Source	Description
instance	Parameter / Default	The payrexx_instance of the related Payrexx_account. The Payrexx_account given in the param is used if available. If no Payrexx_account is given as a parameter, the default_account will be used.
amount	Order field	The amount, the user has to pay (field total_gross_mc on order). Amounts are sent as integers in cents.
pm	Parameter	Parameter for payment method. We send the unique_id of the given Payment_method wrapped in a list.
currency	Order relation	Uppercase unique_id of the linked currency (e.g. CHF)
referenceId	Generated	A generated uuid, that will be saved on the Payrexx_transaction.
successRedirectUrl	Parameter	The url where the user will be redirected to when the payment was successful (e.g. an empty page with visibility state payment-success)
failedRedirectUrl	Parameter	The url where the user will be redirected to when the payment fails (e.g. an empty page with visibility state payment-failed)
cancelledRedirectUrl	Parameter	The url where the user will be redirected to when he cancels the payment. This should be the payment page, where he can select a different payment method.

Warning

Theoretically “basket” items could be sent to payrexx. When this is done, the total amount of the gateway is ignored and payrexx calculates its own total (sum of quantity * amount of all basket items). This is not compatible with tocco data. Payrexx expects a “per piece” amount including vat, which is not available in tocco.

The response will be saved in a Payrexx_transaction as follows:

Field	Source	Description
relOrder	Parameter / Default	The order for which the gateway was created.
relPayment_method	Parameter	The used Payment_method when creating the gateway.
relPayrexx_account	Parameter / Default	The used Payrexx_account when creating the gateway.
state	Response	The state of the payrexx gateway (when it is created, this will be “waiting”)
date	Generated	Current timestamp
gateway_id	Response	The id (int) of the created gateway. This can be used to retrieve further information about the gateway.
reference_id	Response	The reference_id that was passed when creating the gateway (e.g. a random uuid)
amount	Response	The amountn that should be payed. This is transformed back to BigDecimal for readability.

Online payment

For the payment itself, the user is redirected to payrexx. If they pay successfully, they will be redirected to the successRedirectUrl (e.g. an empty page with visibility state payment-success). If the payment fails they will be redirected to the failedRedirectUrl (e.g. another empty page with visibility state payment-failed). If a user cancels his payment he will be redirected to the cancelledRedirectUrl (e.g. the payment page where he might select another payment method).

Web-Hook

As soon as a payment is registered, the webhook in all connected systems is called. The webhook receives a transaction_id. With this id, the payrexx transaction can be resolved using the api.

From this transaction we use the reference_id to identify the Payrexx_transaction in the tocco system. If either the payrexx account or the transaction is not available in the tocco system, the webhook call is ignored.

Warning

Payrexx transactions are not the same as gateways, a transaction might have been initialised in a gateway but they are not linked.

If a Payrexx_transaction was identified, we resolve the linked order. If the order is not yet booked, it will be booked automatically and the newly created Debitor is used. If it is already booked, the existing Debitor is resolved. On this debitor, we check if the there is already a Voucher with the transaction_id of the transaction we are currently processing. If not, a Voucher is created with the data of the transaction as follows.

Field	Description
relVoucher_type	Hardcoded payment
relDebitor	The previously resolved / created debitor
relCurrency	The currency of the debitor
relCredit_account	The debitor summary account of the related debitor
relDebit_account	The account, linked on the Payrexx_account
voucher_date	The time of the transaction
transaction_id	The id of the transaction
amount	The amount of the transaction