NAME

       LedgerSMB::DBOject::Payment - Payment Handling Back-end Routines for LedgerSMB

SYNOPSIS

       Provides the functions for generating the data structures payments made in LedgerSMB.
       This module currently handles only basic payment logic, and does handle overpayment logic,
       though these features will be moved into this module in the near future.

COPYRIGHT

       Copyright (c) 2007 The LedgerSMB Core Team.  Licensed under the GNU General Public License
       version 2 or at your option any later version.  Please see the included COPYRIGHT and
       LICENSE files for more information.

METHODS

       LedgerSMB::DBObject::Payment->new()
           Inherited from LedgerSMB::DBObject.  Please see that documnetation for details.

       $payment->get_open_accounts()
           This function returns a list of open accounts depending on the
           $payment->{account_class} property.  If this property is 1, it returns a list of
           vendor accounts, for 2, a list of customer accounts are returned.

           The returned list of hashrefs is stored in the $payment->{accounts} property.  Each
           hashref has the following keys:  id (entity id), name, and entity_class.

           An account is considered open if there are outstanding, unpaid invoices attached to
           it.  Customer/vendor payment threshold is not considered for this calculation.

       text_amount($value)
           Returns the textual representation, as defined in localization rules, for the numeric
           value passed.

       get_metadata()
           Semi-private method for preparing the object for other tasks, such as displaying
           payment options.

       search()
           Seturns a series of payments matching the search criteria.

           Search results are also stored at $payment->{search_results}.

       get_open_accounts()
           Returns a list of open accounts for the payment operation.

           These are also stored on $payment->{accounts}

       $payment->get_entity_credit_account()
           Returns billing information for the current account, and saves it to an arrayref at
           $payment->{entity_accounts}/

       $payment->get_all_accounts()
           This function returns a list of open or closed accounts depending on the
           $payment->{account_class} property.  If this property is 1, it returns a list of
           vendor accounts, for 2, a list of customer accounts are returned.

           The returned list of hashrefs is stored in the $payment->{accounts} property.  Each
           hashref has the following keys:  id (entity id), name, and entity_class.

       $payment->reverse()
           This function reverses a payment.  A payment is defined as one source
           ($payment->{source}) to one cash account ($payment->{cash_accno}) to one date
           ($payment->{date_paid}) to one vendor/customer ($payment->{credit_id},
           $payment->{account_class}).  This reverses the entries with that source.

       $payment->get_open_invoices()
           This function returns a list of open invoices depending on the
           $payment->{account_class}, $payment->{entity_id}, and $payment->{curr} properties.
           Account classes follow the conventions above.  This list is hence specific to a
           customer or vendor and currency as well.

           The returned list of hashrefs is stored in the $payment->{open_invoices} property.
           Each hashref has the following keys:  id (entity id), name, and entity_class.

       $payment->get_open_invoice()
           This function is an especific case of get_open_invoices(), because get_open_invoice()
           can search for a specific invoice, wich can be searched by the $payment->{invnumber}
           variable

       $payment->get_all_contact_invoices()
           This function returns a list of open accounts depending on the
           $payment->{account_class} property.  If this property is 1, it returns a list of
           vendor accounts, for 2, a list of customer accounts are returned.  Attached to each
           account is a list of open invoices.  The data structure is somewhat complex.

           Each item in the list has the following keys: contact_id, contact_name, \
           account_number, total_due, and invoices.

           The invoices entry is a reference to an array of hashrefs.  Each of these hashrefs has
           the following keys: invoice_id, invnumber, invoice_date, amount, discount, and due.

           These are filtered based on the (required) properties: $payment->{account_class},
           $payment->{business_type}, $payment->{date_from}, $payment->{date_to}, and
           $payment->{ar_ap_accno}.

           The $payment->{ar_ap_accno} property is used to filter out by AR or AP account.

           The following can also be optionally passed: $payment->{batch_id}.  If this is
           patched, vouchers in the current batch will be picked up as well.

           The returned list of hashrefs is stored in the $payment->{contact} property.  Each
           hashref has the following keys:  id (entity id), name, and entity_class.

       list_open_projects
           This method gets the current date attribute, and provides a list of open projects.
           The list is attached to $self->{projects} and returned.

       list_departments
           This method gets the type of document as a parameter, and provides a list of
           departments of the required type.  The list is attached to $self->{departments} and
           returned.

       list_open_vc
           This method gets the type of vc (vendor or customer) as a parameter, and provides a
           list of departments of the required type.  The list is attached to
           $self->{departments} and returned.

       get_open_currencies
           This method gets a list of the open currencies inside the database, it requires that
           $self->{account_class} (must be 1 or 2)  exist to work.

           WARNING THIS IS NOT BEEING USED BY THE SINGLE PAYMENT SYSTEM....

       list_accounting
           This method lists all accounts that match the role specified in account_class property
           and are available to store the payment or receipts.  =back

       list_overpayment_accounting
           This method lists all accounts that match the role specified in account_class property
           and are available to store an overpayment / advanced payment / pre-payment.  =back

       get_sources
           This method builds all the possible sources of money, in the future it will look
           inside the DB.  =back

       get_exchange_rate(currency, date)
           This method gets the exchange rate for the specified currency and date

       get_default_currency
           This method gets the default currency =back

       get_current_date
           This method returns the system's current date

       get_vc_info
           This method returns the contact informatino for a customer or vendor according to
           $self->{account_class}

       get_payment_detail_data
           This method sets appropriate project, department, etc. fields.

       post_bulk
           This function posts the payments in bulk.  Note that queue_payments is not a common
           setting and rather this provides a hook for an add-on.

           This API was developed early in 1.3 and is likely to change for better encapsulation.
           Currenty it uses the following structure:

           Within the main hashref:

           contact_count
               The number of payments.  One per contact.

           contact_$row
               for (1 .. contact_count), contact_$_ is the entity credit account's id associated
               with the current contact.  We will call this $contact_id below.

               For each contact id, we have the following, suffixed with _$contact_id:

               source
               invoice_count
                   Number of invoices to loop through

               invoice_${contact_id}_$row
                   for $row in (1 .. invoice_count), each this provides the transaction id of the
                   invoice.

               Each invoice has the following attributes, suffxed with ${invoice_id}

               amount
               paid
               net

           In the future the payment posting API will become more standardized and the conversion
           between flat and hierarchical representation will be moved to the workflow scripts.

       check_job
           To be moved into payment_queue addon.

       post_payment
           This method uses payment_post to store a payment (not a bulk payment) on the database.

       gather_printable_info
           This method retrieves all the payment related info needed to build a document and
           print it. IT IS NECESSARY TO ALREADY HAVE payment_id on $self

       get_open_overpayment_entities
           This method retrieves all the entities with the specified account_class which have
           unused overpayments

       get_unused_overpayments
           This is a simple wrapper around payment_get_unused_overpayments sql function.

       get_available_overpayment_amount
           Simple wrapper around payment_get_available_overpayment_amount sql function.

       init
           Initializes the num2text system

       num2text
           Translates numbers into words.