a5e7366cac
git-svn-id: file:///svn-source/pmgr/branches/yafr_20090716/site@493 97e9348a-65ac-dc4b-aefc-98561f571b83
721 lines
25 KiB
PHP
721 lines
25 KiB
PHP
<?php
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class StatementEntry extends AppModel {
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var $belongsTo = array(
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'Transaction',
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'Customer',
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'Lease',
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'Account',
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// The charge to which this disbursement applies (if it is one)
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'ChargeEntry' => array(
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'className' => 'StatementEntry',
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),
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);
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var $hasMany = array(
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// The disbursements that apply to this charge (if it is one)
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'DisbursementEntry' => array(
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'className' => 'StatementEntry',
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'foreignKey' => 'charge_entry_id',
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),
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);
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//var $default_log_level = array('log' => 30, 'show' => 15);
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/**************************************************************************
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**************************************************************************
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**************************************************************************
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* function: debit/creditTypes
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*/
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function debitTypes() {
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return array('CHARGE', 'PAYMENT', 'REFUND');
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}
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function creditTypes() {
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return array('DISBURSEMENT', 'WAIVER', 'SURPLUS');
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}
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function voidTypes() {
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return array('VOID');
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}
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/**************************************************************************
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**************************************************************************
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**************************************************************************
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* function: chargeDisbursementFields
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*/
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function chargeDisbursementFields($sum = false, $entry_name = 'StatementEntry') {
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$debits = $this->debitTypes();
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$credits = $this->creditTypes();
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$voids = $this->voidTypes();
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foreach ($debits AS &$enum)
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$enum = "'" . $enum . "'";
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foreach ($credits AS &$enum)
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$enum = "'" . $enum . "'";
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foreach ($voids AS &$enum)
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$enum = "'" . $enum . "'";
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$debit_set = implode(", ", $debits);
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$credit_set = implode(", ", $credits);
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$void_set = implode(", ", $voids);
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$fields = array
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(
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($sum ? 'SUM(' : '') .
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"IF({$entry_name}.type IN ({$debit_set})," .
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" {$entry_name}.amount, NULL)" .
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($sum ? ')' : '') . ' AS charge' . ($sum ? 's' : ''),
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($sum ? 'SUM(' : '') .
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"IF({$entry_name}.type IN({$credit_set})," .
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" {$entry_name}.amount, NULL)" .
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($sum ? ')' : '') . ' AS disbursement' . ($sum ? 's' : ''),
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($sum ? 'SUM(' : '') .
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"IF({$entry_name}.type IN ({$debit_set}), 1," .
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" IF({$entry_name}.type IN ({$credit_set}), -1, 0))" .
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" * IF({$entry_name}.amount, {$entry_name}.amount, 0)" .
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($sum ? ')' : '') . ' AS balance',
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);
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if ($sum)
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$fields[] = "COUNT({$entry_name}.id) AS entries";
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return $fields;
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}
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/**************************************************************************
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**************************************************************************
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**************************************************************************
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* function: verifyStatementEntry
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* - Verifies consistenty of new statement entry data
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* (not in a pre-existing statement entry)
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*/
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function verifyStatementEntry($entry) {
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$this->prFunctionLevel(10);
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$this->prEnter(compact('entry'));
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if (empty($entry['type']) ||
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//empty($entry['effective_date']) ||
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empty($entry['account_id']) ||
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empty($entry['amount'])
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) {
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return $this->prReturn(false);
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}
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return $this->prReturn(true);
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}
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/**************************************************************************
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**************************************************************************
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**************************************************************************
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* function: addStatementEntry
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* - Inserts new Statement Entry into the database
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*/
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function addStatementEntry($entry) {
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$this->prEnter(compact('entry'));
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$ret = array();
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if (!$this->verifyStatementEntry($entry))
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return array('error' => true, 'verify_data' => $entry) + $ret;
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$this->pr(20, array('checkpoint' => 'Pre-Save')
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+ compact('entry'));
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$this->create();
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if (!$this->save($entry))
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return array('error' => true, 'save_data' => $entry) + $ret;
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$ret['statement_entry_id'] = $this->id;
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return $this->prReturn($ret + array('error' => false));
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}
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/**************************************************************************
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**************************************************************************
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**************************************************************************
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* function: waive
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* - Waives the charges
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*
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*/
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function waive($id, $stamp = null) {
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$this->prEnter(compact('id', 'stamp'));
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// Get the basic information about the entry to be waived.
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$this->recursive = -1;
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$charge = $this->read(null, $id);
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$charge = $charge['StatementEntry'];
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// Query the stats to get the remaining balance
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$stats = $this->stats($id);
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// Build a transaction
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$waiver = array('Transaction' => array(), 'Entry' => array());
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$waiver['Transaction']['stamp'] = $stamp;
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$waiver['Transaction']['comment'] = "Charge Waiver";
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if ($charge['type'] !== 'CHARGE')
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die("INTERNAL ERROR: WAIVER ITEM IS NOT CHARGE");
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// Add the charge waiver
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$waiver['Entry'][] =
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array('amount' => $stats['Charge']['balance'],
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'account_id' => $this->Account->waiverAccountID(),
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'comment' => null,
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);
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// Record the waiver transaction
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return $this->prReturn($this->Transaction->addWaiver
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($waiver, $id, $charge['customer_id'], $charge['lease_id']));
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}
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/**************************************************************************
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**************************************************************************
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**************************************************************************
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* function: reverse
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* - Reverses the charges
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*
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*/
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function reverse($id, $stamp = null) {
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$this->prEnter(compact('id', 'stamp'));
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$ret = array();
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// Get the basic information about the entry to be reversed.
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$this->recursive = -1;
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$charge = $this->read(null, $id);
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$charge = $charge['StatementEntry'];
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$voided_entry_transactions = array();
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$reconciled = $this->reconciledEntries($id);
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$this->pr(21, compact('reconciled'));
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if ($reconciled) {
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foreach ($reconciled['entries'] AS $entry) {
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$voided_entry_transactions[$entry['DisbursementEntry']['transaction_id']]
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= array_intersect_key($entry['DisbursementEntry'],
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array('customer_id'=>1, 'lease_id'=>1));
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$this->del($entry['DisbursementEntry']['id']);
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continue;
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$DE = new StatementEntry();
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$DE->id = $entry['DisbursementEntry']['id'];
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$DE->saveField('type', 'VOID');
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$DE->saveField('charge_entry_id', null);
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}
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$this->pr(17, compact('voided_entry_transactions'));
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}
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// Query the stats to get the remaining balance
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$stats = $this->stats($id);
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// Build a transaction
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$reversal = array('Transaction' => array(), 'Entry' => array());
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$reversal['Transaction']['stamp'] = $stamp;
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$reversal['Transaction']['comment'] = "Credit Note: Charge Reversal";
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if ($charge['type'] !== 'CHARGE')
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die("INTERNAL ERROR: REVERSAL ITEM IS NOT CHARGE");
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// Add the charge reversal
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$reversal['Entry'][] =
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array('amount' => $stats['Charge']['total'],
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'account_id' => $charge['account_id'],
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'comment' => 'Charge Reversal',
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);
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// Record the reversal transaction
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$result = $this->Transaction->addReversal
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($reversal, $id, $charge['customer_id'], $charge['lease_id']);
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$this->pr(21, compact('result'));
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$ret['reversal'] = $result;
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if ($result['error'])
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$ret['error'] = true;
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foreach ($voided_entry_transactions AS $transaction_id => $tx) {
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$result = $this->assignCredits
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(null,
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$transaction_id,
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null,
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null,
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$tx['customer_id'],
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$tx['lease_id']
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);
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$this->pr(21, compact('result'));
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$ret['assigned'][] = $result;
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if ($result['error'])
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$ret['error'] = true;
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}
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return $this->prReturn($ret + array('error' => false));
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}
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/**************************************************************************
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**************************************************************************
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**************************************************************************
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* function: reconciledSet
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* - Returns the set of entries satisfying the given conditions,
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* along with any entries that they reconcile
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*/
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function reconciledSetQuery($set, $query) {
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$this->queryInit($query);
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if (in_array($set, $this->debitTypes()))
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$query['link']['DisbursementEntry'] = array('fields' => array("SUM(DisbursementEntry.amount) AS reconciled"));
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elseif (in_array($set, $this->creditTypes()))
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$query['link']['ChargeEntry'] = array('fields' => array("SUM(ChargeEntry.amount) AS reconciled"));
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else
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die("INVALID RECONCILE SET");
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$query['conditions'][] = array('StatementEntry.type' => $set);
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$query['group'] = 'StatementEntry.id';
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return $query;
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}
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function reconciledSet($set, $query = null, $unrec = false, $if_rec_include_partial = false) {
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//$this->prFunctionLevel(16);
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$this->prEnter(compact('set', 'query', 'unrec', 'if_rec_include_partial'));
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$lquery = $this->reconciledSetQuery($set, $query);
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$result = $this->find('all', $lquery);
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$this->pr(20, compact('lquery', 'result'));
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$resultset = array();
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foreach ($result AS $i => $entry) {
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$this->pr(25, compact('entry'));
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if (!empty($entry[0]))
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$entry['StatementEntry'] = $entry[0] + $entry['StatementEntry'];
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unset($entry[0]);
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$entry['StatementEntry']['balance'] =
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$entry['StatementEntry']['amount'] - $entry['StatementEntry']['reconciled'];
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// Since HAVING isn't a builtin feature of CakePHP,
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// we'll have to post-process to get the desired entries
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if ($entry['StatementEntry']['balance'] == 0)
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$reconciled = true;
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elseif ($entry['StatementEntry']['reconciled'] == 0)
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$reconciled = false;
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else // Partial disbursement; depends on unrec
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$reconciled = (!$unrec && $if_rec_include_partial);
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// Add to the set, if it's been requested
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if ($reconciled == !$unrec)
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$resultset[] = $entry;
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}
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return $this->prReturn(array('entries' => $resultset,
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'summary' => $this->stats(null, $query)));
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}
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/**************************************************************************
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**************************************************************************
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**************************************************************************
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* function: reconciledEntries
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* - Returns a list of entries that reconcile against the given entry.
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* (such as disbursements towards a charge).
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*/
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function reconciledEntriesQuery($id, $query = null) {
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$this->queryInit($query, false);
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$this->id = $id;
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$this->recursive = -1;
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$this->read();
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$query['conditions'][] = array('StatementEntry.id' => $id);
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if (in_array($this->data['StatementEntry']['type'], $this->debitTypes()))
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$query['link']['DisbursementEntry'] = array();
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if (in_array($this->data['StatementEntry']['type'], $this->creditTypes()))
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$query['link']['ChargeEntry'] = array();
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return $query;
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}
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function reconciledEntries($id, $query = null) {
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$this->prEnter(compact('id', 'query'));
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$lquery = $this->reconciledEntriesQuery($id, $query);
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$result = $this->find('all', $lquery);
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foreach (array_keys($result) AS $i)
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unset($result[$i]['StatementEntry']);
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return $this->prReturn(array('entries' => $result));
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}
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/**************************************************************************
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**************************************************************************
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**************************************************************************
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* function: assignCredits
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* - Assigns all credits to existing charges
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*
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* REVISIT <AP>: 20090726
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* This algorithm shouldn't be hardcoded. We need to allow
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* the user to specify how disbursements should be applied.
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*
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*/
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function assignCredits($query = null, $receipt_id = null,
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$charge_ids = null, $disbursement_type = null,
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$customer_id = null, $lease_id = null)
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{
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//$this->prFunctionLevel(25);
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$this->prEnter(compact('query', 'receipt_id',
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'charge_ids', 'disbursement_type',
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'customer_id', 'lease_id'));
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$this->queryInit($query);
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if (!empty($customer_id))
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$query['conditions'][] = array('StatementEntry.customer_id' => $customer_id);
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if (empty($disbursement_type))
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$disbursement_type = 'DISBURSEMENT';
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$ret = array();
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// First, find all known credits
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$lquery = $query;
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$lquery['conditions'][] = array('StatementEntry.type' => 'SURPLUS');
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// REVISIT <AP>: 20090804
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// We need to ensure that we're using surplus credits ONLY from either
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// the given lease, or those that do not apply to any specific lease.
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// However, by doing this, it forces any lease surplus amounts to
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// remain frozen with that lease until either there is a lease charge,
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// we refund the money, or we "promote" that surplus to the customer
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// level and out of the leases direct control.
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// That seems like a pain. Perhaps we should allow any customer
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// surplus to be used on any customer charge.
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$lquery['conditions'][] =
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array('OR' =>
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array(array('StatementEntry.lease_id' => null),
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(!empty($lease_id)
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? array('StatementEntry.lease_id' => $lease_id)
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: array()),
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));
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$lquery['order'][] = 'StatementEntry.effective_date ASC';
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$credits = $this->find('all', $lquery);
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$this->pr(18, compact('credits'),
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"Credits Established");
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// Next, establish credit from the newly added receipt
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$receipt_credit = null;
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if (!empty($receipt_id)) {
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$lquery =
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array('link' =>
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array('StatementEntry',
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'LedgerEntry' =>
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array('conditions' =>
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array('LedgerEntry.account_id !=' =>
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$this->Account->accountReceivableAccountID()),
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),
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),
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'conditions' => array('Transaction.id' => $receipt_id),
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'fields' => array('Transaction.id', 'Transaction.stamp', 'Transaction.amount'),
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);
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$receipt_credit = $this->Transaction->find('first', $lquery);
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if (!$receipt_credit)
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die("INTERNAL ERROR: UNABLE TO LOCATE RECEIPT");
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//$reconciled = $this->reconciledEntries($id);
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$stats = $this->Transaction->stats($receipt_id);
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$receipt_credit['balance'] =
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$receipt_credit['Transaction']['amount'] - $stats['Disbursement']['total'];
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$this->pr(18, compact('receipt_credit'),
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"Receipt Credit Added");
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}
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// Now find all unpaid charges
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if (isset($charge_ids)) {
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$lquery = array('contain' => false,
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'conditions' => array('StatementEntry.id' => $charge_ids));
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} else {
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$lquery = $query;
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// If we're working with a specific lease, then limit charges to it
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if (!empty($lease_id))
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$lquery['conditions'][] = array('StatementEntry.lease_id' => $lease_id);
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}
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$lquery['order'] = 'StatementEntry.effective_date ASC';
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$charges = array();
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foreach ($this->debitTypes() AS $dtype) {
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$rset = $this->reconciledSet($dtype, $lquery, true);
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$entries = $rset['entries'];
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$charges = array_merge($charges, $entries);
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$this->pr(18, compact('dtype', 'entries'), "Outstanding Debit Entries");
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}
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// Initialize our list of used credits
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$used_credits = array();
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// Work through all unpaid charges, applying disbursements as we go
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foreach ($charges AS $charge) {
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$this->pr(20, compact('charge'),
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'Process Charge');
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// Check that we have available credits.
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// Technically, this isn't necessary, since the loop
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// will handle everything just fine. However, this
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// just saves extra processing if/when there is no
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// means to resolve a charge anyway.
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if (count($credits) == 0 && empty($receipt_credit['balance'])) {
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$this->pr(17, 'No more available credits');
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break;
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}
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$charge['balance'] = $charge['StatementEntry']['balance'];
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while ($charge['balance'] > 0 &&
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(count($credits) || !empty($receipt_credit['balance']))) {
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$this->pr(20, compact('charge'),
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'Attempt Charge Reconciliation');
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// Use explicit credits before using implicit credits
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// (Not sure it matters though).
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if (count($credits)) {
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// Peel off the first credit available
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$credit =& $credits[0];
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$disbursement_date = $credit['StatementEntry']['effective_date'];
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$disbursement_transaction_id = $credit['StatementEntry']['transaction_id'];
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$disbursement_account_id = $credit['StatementEntry']['account_id'];
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if (!isset($credit['balance']))
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$credit['balance'] = $credit['StatementEntry']['amount'];
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}
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elseif (!empty($receipt_credit['balance'])) {
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// Use our only receipt credit
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$credit =& $receipt_credit;
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$disbursement_date = $credit['Transaction']['stamp'];
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$disbursement_transaction_id = $credit['Transaction']['id'];
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$disbursement_account_id = $credit['LedgerEntry']['account_id'];
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}
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else {
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die("HOW DID WE GET HERE WITH NO SURPLUS?");
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}
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// Set the disbursement amount to the maximum amount
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// possible without exceeding the charge or credit balance
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$disbursement_amount = min($charge['balance'], $credit['balance']);
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if (!isset($credit['applied']))
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$credit['applied'] = 0;
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$credit['applied'] += $disbursement_amount;
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$credit['balance'] -= $disbursement_amount;
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$this->pr(20, compact('credit'),
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($credit['balance'] > 0 ? 'Utilized' : 'Exhausted') .
|
|
(count($credits) ? ' Credit' : ' Receipt'));
|
|
|
|
if ($credit['balance'] < 0)
|
|
die("HOW DID WE END UP WITH NEGATIVE SURPLUS BALANCE?");
|
|
|
|
// If we've exhausted the credit, get it out of the
|
|
// available credit pool (but keep track of it for later).
|
|
if ($credit['balance'] <= 0 && count($credits))
|
|
$used_credits[] = array_shift($credits);
|
|
|
|
// Add a disbursement that uses the available credit to pay the charge
|
|
$disbursement = array('type' => $disbursement_type,
|
|
'account_id' => $disbursement_account_id,
|
|
'amount' => $disbursement_amount,
|
|
'effective_date' => $disbursement_date,
|
|
'transaction_id' => $disbursement_transaction_id,
|
|
'customer_id' => $charge['StatementEntry']['customer_id'],
|
|
'lease_id' => $charge['StatementEntry']['lease_id'],
|
|
'charge_entry_id' => $charge['StatementEntry']['id'],
|
|
'comment' => null,
|
|
);
|
|
|
|
$this->pr(20, compact('disbursement'),
|
|
'New Disbursement Entry');
|
|
|
|
$result = $this->addStatementEntry($disbursement);
|
|
$ret['Disbursement'][] = $result;
|
|
if ($result['error'])
|
|
$ret['error'] = true;
|
|
|
|
// Adjust the charge balance to reflect the new disbursement
|
|
$charge['balance'] -= $disbursement_amount;
|
|
if ($charge['balance'] < 0)
|
|
die("HOW DID WE GET A NEGATIVE CHARGE AMOUNT?");
|
|
|
|
if ($charge['balance'] <= 0)
|
|
$this->pr(20, 'Fully Paid Charge');
|
|
}
|
|
|
|
}
|
|
|
|
// Partially used credits must be added to the used list
|
|
if (isset($credits[0]['applied']))
|
|
$used_credits[] = array_shift($credits);
|
|
|
|
$this->pr(18, compact('credits', 'used_credits', 'receipt_credit'),
|
|
'Disbursements added');
|
|
|
|
// Clean up any explicit credits that have been used
|
|
foreach ($used_credits AS $credit) {
|
|
if ($credit['balance'] > 0) {
|
|
$this->pr(20, compact('credit'),
|
|
'Update Credit Entry');
|
|
|
|
$this->id = $credit['StatementEntry']['id'];
|
|
$this->saveField('amount', $credit['balance']);
|
|
}
|
|
else {
|
|
$this->pr(20, compact('credit'),
|
|
'Delete Exhausted Credit Entry');
|
|
|
|
$this->del($credit['StatementEntry']['id'], false);
|
|
}
|
|
}
|
|
|
|
// Convert non-exhausted receipt credit to an explicit one
|
|
if (!empty($receipt_credit['balance'])) {
|
|
$credit =& $receipt_credit;
|
|
|
|
$this->pr(18, compact('credit'),
|
|
'Create Explicit Credit');
|
|
|
|
$result = $this->addStatementEntry
|
|
(array('type' => 'SURPLUS',
|
|
'account_id' => $credit['LedgerEntry']['account_id'],
|
|
'amount' => $credit['balance'],
|
|
'effective_date' => $credit['Transaction']['stamp'],
|
|
'transaction_id' => $credit['Transaction']['id'],
|
|
'customer_id' => $customer_id,
|
|
'lease_id' => $lease_id,
|
|
));
|
|
$ret['Credit'] = $result;
|
|
if ($result['error'])
|
|
$ret['error'] = true;
|
|
}
|
|
|
|
return $this->prReturn($ret + array('error' => false));
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
**************************************************************************
|
|
**************************************************************************
|
|
* function: stats
|
|
* - Returns summary data from the requested statement entry
|
|
*/
|
|
function stats($id = null, $query = null) {
|
|
$this->prEnter(compact('id', 'query'));
|
|
|
|
$this->queryInit($query);
|
|
unset($query['group']);
|
|
|
|
$stats = array();
|
|
if (isset($id))
|
|
$query['conditions'][] = array('StatementEntry.id' => $id);
|
|
|
|
// Determine the total in charges
|
|
$charge_query = $query;
|
|
unset($charge_query['link']['ChargeEntry']);
|
|
unset($charge_query['link']['DisbursementEntry']);
|
|
|
|
$charge_query['fields'] = array();
|
|
$charge_query['fields'][] = "SUM(StatementEntry.amount) AS total";
|
|
$charge_query['conditions'][] = array('StatementEntry.type' => $this->debitTypes());
|
|
$result = $this->find('first', $charge_query);
|
|
$stats['Charge'] = $result[0];
|
|
|
|
$this->pr(17, compact('charge_query', 'result'),
|
|
'Charges');
|
|
|
|
// Tally the amount actually _paid_ to those charges
|
|
$charge_disbursement_query = $charge_query;
|
|
$charge_disbursement_query['link']['DisbursementEntry'] = array('fields' => array());
|
|
$charge_disbursement_query['fields'] = array();
|
|
$charge_disbursement_query['fields'][] = "COALESCE(SUM(DisbursementEntry.amount),0) AS paid";
|
|
$charge_disbursement_query['conditions'][] = array('DisbursementEntry.type' => 'DISBURSEMENT');
|
|
$result = $this->find('first', $charge_disbursement_query);
|
|
$stats['Charge'] += $result[0];
|
|
|
|
$this->pr(17, compact('charge_disbursement_query', 'result'),
|
|
'Charge Disbursements');
|
|
|
|
// Tally the amount of charges that have been waived
|
|
$charge_waiver_query = $charge_query;
|
|
$charge_waiver_query['link']['DisbursementEntry'] = array('fields' => array());
|
|
$charge_waiver_query['fields'] = array();
|
|
$charge_waiver_query['fields'][] = "COALESCE(SUM(DisbursementEntry.amount),0) AS waived";
|
|
$charge_waiver_query['conditions'][] = array('DisbursementEntry.type' => 'WAIVER');
|
|
$result = $this->find('first', $charge_waiver_query);
|
|
$stats['Charge'] += $result[0];
|
|
|
|
$this->pr(17, compact('charge_waiver_query', 'result'),
|
|
'Charge Waivers');
|
|
|
|
// Compute some summary information for charges
|
|
$stats['Charge']['reconciled'] =
|
|
$stats['Charge']['paid'] + $stats['Charge']['waived'];
|
|
$stats['Charge']['balance'] =
|
|
$stats['Charge']['total'] - $stats['Charge']['reconciled'];
|
|
if (!isset($stats['Charge']['balance']))
|
|
$stats['Charge']['balance'] = 0;
|
|
|
|
|
|
// Determine the total in disbursements, including those which
|
|
// are charge waivers and those that do not even reconcile
|
|
// to charges (i.e. they are surplus disbursements).
|
|
$disbursement_query = $query;
|
|
unset($disbursement_query['link']['DisbursementEntry']);
|
|
$disbursement_query['link']['ChargeEntry'] = array('fields' => array());
|
|
|
|
$disbursement_query['fields'] = array();
|
|
$disbursement_query['fields'][] = "SUM(StatementEntry.amount) AS total";
|
|
$disbursement_query['fields'][] = "COALESCE(SUM(IF(ChargeEntry.id IS NULL, 0, StatementEntry.amount)), 0) AS charged";
|
|
$disbursement_query['fields'][] = "COALESCE(SUM(IF(ChargeEntry.id IS NULL, StatementEntry.amount, 0)), 0) AS surplus";
|
|
|
|
$disbursement_query['conditions'][] = array('StatementEntry.type' => array('DISBURSEMENT', 'WAIVER', 'SURPLUS'));
|
|
$result = $this->find('first', $disbursement_query);
|
|
$stats['Disbursement'] = $result[0];
|
|
|
|
$this->pr(17, compact('disbursement_query', 'result'),
|
|
'Disbursements');
|
|
|
|
// Compute some summary information for disbursements.
|
|
// Add a reconciled field just for consistency with Charge.
|
|
$stats['Disbursement']['reconciled'] =
|
|
$stats['Disbursement']['charged'];
|
|
$stats['Disbursement']['balance'] =
|
|
$stats['Disbursement']['total'] - $stats['Disbursement']['reconciled'];
|
|
if (!isset($stats['Disbursement']['balance']))
|
|
$stats['Disbursement']['balance'] = 0;
|
|
|
|
// 'balance' is simply the difference between
|
|
// the balances of charges and disbursements
|
|
$stats['balance'] = $stats['Charge']['balance'] - $stats['Disbursement']['balance'];
|
|
if (!isset($stats['balance']))
|
|
$stats['balance'] = 0;
|
|
|
|
// 'account_balance' is really only relevant to
|
|
// callers that have requested charge and disbursement
|
|
// stats with respect to a particular account.
|
|
// It represents the difference between inflow
|
|
// and outflow from that account.
|
|
$stats['account_balance'] = $stats['Charge']['paid'] - $stats['Disbursement']['total'];
|
|
if (!isset($stats['account_balance']))
|
|
$stats['account_balance'] = 0;
|
|
|
|
return $this->prReturn($stats);
|
|
}
|
|
|
|
} |