ebd80a8313
git-svn-id: file:///svn-source/pmgr/branches/yafr_20090716/site@594 97e9348a-65ac-dc4b-aefc-98561f571b83
722 lines
25 KiB
PHP
722 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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'dependent' => true,
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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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var $max_log_level = 19;
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/**************************************************************************
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**************************************************************************
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**************************************************************************
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* function: debit/creditTypes
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*/
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function debitTypes() {
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return array('CHARGE', 'PAYMENT', 'REFUND');
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}
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function creditTypes() {
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return array('DISBURSEMENT', 'WAIVER', 'REVERSAL', 'WRITEOFF', 'SURPLUS');
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}
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function voidTypes() {
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return array('VOID');
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}
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/**************************************************************************
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**************************************************************************
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**************************************************************************
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* function: chargeDisbursementFields
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*/
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function chargeDisbursementFields($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('data' => $entry);
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if (!$this->verifyStatementEntry($entry))
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return $this->prReturn(array('error' => true, 'verify_data' => $entry) + $ret);
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$this->create();
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if (!$this->save($entry))
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return $this->prReturn(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 charge balance
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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 = $charge['StatementEntry'];
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if ($charge['type'] !== 'CHARGE')
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$this->INTERNAL_ERROR("Waiver item is not CHARGE.");
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// Query the stats to get the remaining balance
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$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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// Add the charge waiver
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$waiver['Entry'][] =
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array('amount' => $stats['Charge']['balance'],
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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'], $charge['lease_id']));
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}
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/**************************************************************************
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**************************************************************************
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**************************************************************************
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* function: reversable
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* - Returns true if the charge can be reversed; false otherwise
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*/
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function reversable($id) {
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$this->prEnter(compact('id'));
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// Verify the item is an actual charge
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$this->id = $id;
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$charge_type = $this->field('type');
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if ($charge_type !== 'CHARGE')
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return $this->prReturn(false);
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// Determine anything reconciled against the charge
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$reverse_transaction_id = $this->field('reverse_transaction_id');
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if (!empty($reverse_transaction_id))
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return $this->prReturn(false);
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return $this->prReturn(true);
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}
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/**************************************************************************
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**************************************************************************
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**************************************************************************
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* function: reverse
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* - Reverses the charges
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*/
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function reverse($id, $stamp = null) {
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$this->prEnter(compact('id', 'stamp'));
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// Verify the item can be reversed
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if (!$this->reversable($id))
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$this->INTERNAL_ERROR("Item is not reversable.");
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// Get the basic information about this charge
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$charge = $this->find('first', array('contain' => true));
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//$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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$charge['paid'] = $stats['Charge']['disbursement'];
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// Record the reversal transaction
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$result = $this->Transaction->addReversal
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($charge, $stamp, 'Charge Reversal');
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if (empty($result['error'])) {
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// Mark the charge as reversed
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$this->id = $id;
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$this->saveField('reverse_transaction_id', $result['transaction_id']);
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}
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return $this->prReturn($result);
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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(array('log' => 16, 'show' => 10));
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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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$query['conditions'][] = array('DisbursementEntry.id !=' => null);
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}
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if (in_array($this->data['StatementEntry']['type'], $this->creditTypes())) {
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$query['link']['ChargeEntry'] = array();
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$query['conditions'][] = array('ChargeEntry.id !=' => null);
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}
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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, unless this call is to make
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// credit adjustments to a specific charge
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if (empty($receipt_id)) {
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if (!empty($charge_ids))
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$this->INTERNAL_ERROR("Charge IDs, yet no corresponding receipt");
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$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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}
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else {
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// Establish credit from the (newly added) receipt
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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 <> Transaction.account_id')
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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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$this->INTERNAL_ERROR("Unable to locate receipt.");
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$stats = $this->Transaction->stats($receipt_id);
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$receipt_credit['balance'] = $stats['undisbursed'];
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$receipt_credit['receipt'] = true;
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$credits = array($receipt_credit);
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$this->pr(18, compact('credits'),
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"Receipt Credit Added");
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}
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// Now find all unpaid charges
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if (isset($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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// 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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$charge['balance'] = $charge['StatementEntry']['balance'];
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// Use explicit credits before using the new receipt credit
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foreach ($credits AS &$credit) {
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if (empty($charge['balance']))
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break;
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if ($charge['balance'] < 0)
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$this->INTERNAL_ERROR("Negative Charge Balance");
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if (!isset($credit['balance']))
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$credit['balance'] = $credit['StatementEntry']['amount'];
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if (empty($credit['balance']))
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continue;
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if ($credit['balance'] < 0)
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$this->INTERNAL_ERROR("Negative Credit Balance");
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$this->pr(20, compact('charge'),
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'Attempt Charge Reconciliation');
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if (empty($credit['receipt']))
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$disbursement_account_id = $credit['StatementEntry']['account_id'];
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else
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$disbursement_account_id = $credit['LedgerEntry']['account_id'];
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// REVISIT <AP>: 20090811
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// Need to come up with a better strategy for handling
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// concessions. For now, just restricting concessions
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// to apply only towards rent will resolve the most
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// predominant (or only) needed usage case.
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if ($disbursement_account_id == $this->Account->concessionAccountID() &&
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$charge['StatementEntry']['account_id'] != $this->Account->rentAccountID())
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continue;
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// Set the disbursement amount to the maximum amount
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// possible without exceeding the charge or credit balance
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$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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($credit['balance'] > 0 ? 'Utilized' : 'Exhausted') .
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(empty($credit['receipt']) ? ' Credit' : ' Receipt'));
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if (strtotime($charge['StatementEntry']['effective_date']) >
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strtotime($credit['StatementEntry']['effective_date']))
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$disbursement_edate = $charge['StatementEntry']['effective_date'];
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else
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$disbursement_edate = $credit['StatementEntry']['effective_date'];
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if (empty($credit['receipt'])) {
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// Explicit Credit
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$result = $this->Transaction->addTransactionEntries
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(array('include_ledger_entry' => true,
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'include_statement_entry' => true),
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array('type' => 'INVOICE',
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'id' => $credit['StatementEntry']['transaction_id'],
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'account_id' => $this->Account->accountReceivableAccountID(),
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'crdr' => 'CREDIT',
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'customer_id' => $charge['StatementEntry']['customer_id'],
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'lease_id' => $charge['StatementEntry']['lease_id'],
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),
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array
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(array('type' => $disbursement_type,
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'effective_date' => $disbursement_edate,
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'account_id' => $credit['StatementEntry']['account_id'],
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'amount' => $disbursement_amount,
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'charge_entry_id' => $charge['StatementEntry']['id'],
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),
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));
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|
|
|
$ret['Disbursement'][] = $result;
|
|
if ($result['error'])
|
|
$ret['error'] = true;
|
|
}
|
|
else {
|
|
// Receipt Credit
|
|
|
|
if (strtotime($charge['StatementEntry']['effective_date']) >
|
|
strtotime($credit['Transaction']['stamp']))
|
|
$disbursement_edate = $charge['StatementEntry']['effective_date'];
|
|
else
|
|
$disbursement_edate = $credit['Transaction']['stamp'];
|
|
|
|
// Add a disbursement that uses the available credit to pay the charge
|
|
$disbursement =
|
|
array('type' => $disbursement_type,
|
|
'effective_date' => $disbursement_edate,
|
|
'amount' => $disbursement_amount,
|
|
'account_id' => $credit['LedgerEntry']['account_id'],
|
|
'transaction_id' => $credit['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');
|
|
}
|
|
// Break the $credit reference to avoid future problems
|
|
unset($credit);
|
|
}
|
|
|
|
$this->pr(18, compact('credits'),
|
|
'Disbursements complete');
|
|
|
|
// Clean up any explicit credits that have been used
|
|
foreach ($credits AS $credit) {
|
|
if (!empty($credit['receipt']))
|
|
continue;
|
|
|
|
if (empty($credit['applied']))
|
|
continue;
|
|
|
|
if ($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');
|
|
|
|
$this->delete($credit['StatementEntry']['id'], false);
|
|
}
|
|
}
|
|
|
|
// Check for any implicit receipt credits, converting
|
|
// into explicit credits if there is a remaining balance.
|
|
foreach ($credits AS $credit) {
|
|
if (empty($credit['receipt']))
|
|
continue;
|
|
|
|
if (empty($credit['balance']))
|
|
continue;
|
|
|
|
// See if there is an existing explicit credit
|
|
// for this transaction.
|
|
$explicit_credit = $this->find
|
|
('first', array('contain' => false,
|
|
'conditions' =>
|
|
array(array('transaction_id' => $credit['Transaction']['id']),
|
|
array('type' => 'SURPLUS')),
|
|
));
|
|
|
|
if (!empty($explicit_credit)) {
|
|
// REVISIT <AP>: 20090815
|
|
// Testing whether or not this case occurs
|
|
$this->INTERNAL_ERROR('Existing explicit credit unexpected');
|
|
|
|
// Since there IS an existing explicit credit, we must update
|
|
// its balance instead of creating a new one, since it has
|
|
// already been incorporated in the overall credit balance.
|
|
// If we were to create a new one, we would erroneously create
|
|
// an excess of credit available.
|
|
$this->pr(18, compact('explicit_credit', 'credit'),
|
|
'Update existing explicit credit');
|
|
$EC = new StatementEntry();
|
|
$EC->id = $explicit_credit['StatementEntry']['id'];
|
|
$EC->saveField('amount', $credit['balance']);
|
|
continue;
|
|
}
|
|
|
|
if (!empty($ret['receipt_balance']))
|
|
$this->INTERNAL_ERROR('Only one receipt expected in assignCredits');
|
|
|
|
// Give caller the information necessary to create an explicit
|
|
// credit from the passed receipt, which we've not exhausted.
|
|
$this->pr(18, compact('credit'), 'Convert to explicit credit');
|
|
$ret['receipt_balance'] = $credit['balance'];
|
|
}
|
|
|
|
return $this->prReturn($ret + array('error' => false));
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
**************************************************************************
|
|
**************************************************************************
|
|
* function: stats
|
|
* - Returns summary data from the requested statement entry
|
|
*/
|
|
function stats($id = null, $query = null) {
|
|
//$this->prFunctionLevel(array('log' => 16, 'show' => 10));
|
|
$this->prEnter(compact('id', 'query'));
|
|
|
|
$this->queryInit($query);
|
|
unset($query['group']);
|
|
|
|
$stats = array();
|
|
if (isset($id))
|
|
$query['conditions'][] = array('StatementEntry.id' => $id);
|
|
|
|
$types = array('Charge', 'Disbursement');
|
|
foreach ($types AS $type_index => $this_name) {
|
|
$that_name = $types[($type_index + 1) % 2];
|
|
if ($this_name === 'Charge') {
|
|
$this_types = $this->debitTypes();
|
|
$that_types = $this->creditTypes();
|
|
} else {
|
|
$this_types = $this->creditTypes();
|
|
$that_types = $this->debitTypes();
|
|
}
|
|
|
|
$this_query = $query;
|
|
$this_query['fields'] = array();
|
|
$this_query['fields'][] = "SUM(StatementEntry.amount) AS total";
|
|
$this_query['conditions'][] = array('StatementEntry.type' => $this_types);
|
|
$result = $this->find('first', $this_query);
|
|
$stats[$this_name] = $result[0];
|
|
|
|
$this->pr(17, compact('this_query', 'result'), $this_name.'s');
|
|
|
|
// Tally the different types that result in credits towards the charges
|
|
$stats[$this_name]['reconciled'] = 0;
|
|
foreach ($that_types AS $that_type) {
|
|
$lc_that_type = strtolower($that_type);
|
|
$that_query = $this_query;
|
|
$that_query['link']["{$that_name}Entry"] = array('fields' => array());
|
|
$that_query['fields'] = array();
|
|
if ($this_name == 'Charge')
|
|
$that_query['fields'][] = "COALESCE(SUM(${that_name}Entry.amount),0) AS $lc_that_type";
|
|
else
|
|
$that_query['fields'][] = "COALESCE(SUM(StatementEntry.amount), 0) AS $lc_that_type";
|
|
$that_query['conditions'][] = array("{$that_name}Entry.type" => $that_type);
|
|
$result = $this->find('first', $that_query);
|
|
$stats[$this_name] += $result[0];
|
|
|
|
$this->pr(17, compact('that_query', 'result'), "{$this_name}s: $that_type");
|
|
$stats[$this_name]['reconciled'] += $stats[$this_name][$lc_that_type];
|
|
}
|
|
|
|
// Compute balance information for charges
|
|
$stats[$this_name]['balance'] =
|
|
$stats[$this_name]['total'] - $stats[$this_name]['reconciled'];
|
|
if (!isset($stats[$this_name]['balance']))
|
|
$stats[$this_name]['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']['reconciled'] - $stats['Disbursement']['total'];
|
|
if (!isset($stats['account_balance']))
|
|
$stats['account_balance'] = 0;
|
|
|
|
return $this->prReturn($stats);
|
|
}
|
|
|
|
} |