2 /**********************************************************************
3 Copyright (C) FrontAccounting, LLC.
4 Released under the terms of the GNU General Public License, GPL,
5 as published by the Free Software Foundation, either version 3
6 of the License, or (at your option) any later version.
7 This program is distributed in the hope that it will be useful,
8 but WITHOUT ANY WARRANTY; without even the implied warranty of
9 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
10 See the License here <http://www.gnu.org/licenses/gpl-3.0.html>.
11 ***********************************************************************/
13 // FrontAccounting extension modules integration.
14 // This file is included in session.inc even before session is started,
15 // and includes hooks.php connector files from all installed extensions.
16 // To make hooks active install_hooks() have to be called after interface
19 // To find how various hooks are processed look into respective hook_* functions below.
22 var $module_name; // extension module name.
25 // Helper for updating databases with extension scheme
27 // $comp can be company number, -1 for all,
28 // $updates - table of filename => array(table, field, property)
29 // $check_only - don't update database, check table/field/property existence only
31 function update_databases($comp, $updates, $check_only=false)
33 global $db_connections, $path_to_root;
36 $conn = $db_connections;
38 $conn = array( $comp => $db_connections[$comp]);
41 foreach($conn as $comp => $con) {
42 set_global_connection($comp);
43 foreach($updates as $file => $update) {
46 $properties = @$update[2];
48 $ok = check_table($con['tbpref'], $table, $field, $properties) == 0;
50 if (!$check_only && !$ok) {
51 $ok = db_import($path_to_root.'/modules/'.$this->module_name.'/sql/'.$file,
62 set_global_connection(0); // return to siteadmin account
67 // Install additional tabs provided by extension
69 function install_tabs($app)
71 // $app->add_application(new example_class); // add menu tab defined by example_class
74 // Install additonal menu options provided by extension
76 function install_options($app)
78 // global $path_to_root;
82 // $app->add_rapp_function( 0, _("&Example option"),
83 // $path_to_root.'/modules/example/example.php?', 'SA_OPEN');
87 function install_access()
89 // $security_areas['SA_EXAMPLE'] = array(SS_EXAMPLE|100, _("Example security area."));
91 // $security_sections = array(SS_EXAMPLE => _("Example module implementation"));
93 // return array($security_areas, $security_sections);
97 // Price in words. $doc_type is set to document type and can be used to suppress
98 // price in words printing for selected document types.
99 // Used instead of built in simple english price_in_words() function.
101 // Returns: amount in words as string.
103 /* commented out in base class to enable use with hook_invoke_last
104 function price_in_words($amount, $doc_type)
109 // Exchange rate currency $curr as on date $date.
110 // Keep in mind FA has internally implemented 3 exrate providers
111 // If any of them supports your currency, you can simply use function below
112 // with apprioprate provider set, otherwise implement your own.
113 // Returns: $curr value in home currency units as a real number.
115 /* commented out in base class to enable use with hook_invoke_last
116 function retrieve_exrate($curr, $date)
118 // $provider = 'ECB'; // 'ECB', 'YAHOO' or 'GOOGLE'
119 // return get_extern_rate($curr, $provider, $date);
123 // Generic function called at the end of Tax Report (report 709)
124 // Can be used e.g. for special database updates on every report printing
125 // or to print special tax report footer
128 function tax_report_done()
131 // Following database transaction hooks akcepts array of parameters:
132 // 'cart' => transaction data
133 // 'trans_type' => transaction type
135 function db_prewrite(&$cart, $trans_type)
140 function db_postwrite(&$cart, $trans_type)
145 function db_prevoid($trans_type, $trans_no)
150 This method is called after module install.
152 function install_extension($check_only=true)
157 This method is called after module uninstall.
159 function uninstall_extension($check_only=true)
164 This method is called on extension activation for company.
166 function activate_extension($company, $check_only=true)
171 This method is called when extension is deactivated for company.
173 function deactivate_extension($company, $check_only=true)
180 Installs hooks provided by extension modules
182 function install_hooks()
184 global $path_to_root, $Hooks, $installed_extensions;
188 // include current language related $Hooks object if locale file exists
189 if (file_exists($path_to_root . "/lang/".$_SESSION['language']->code."/locale.inc"))
191 include_once($path_to_root . "/lang/".$_SESSION['language']->code."/locale.inc");
192 $code = $_SESSION['language']->code;
193 $hook_class = 'hooks_'.$code;
194 $Hooks[$code] = new $hook_class;
195 unset($code, $hook_class);
197 // install hooks provided by active extensions
198 foreach($installed_extensions as $ext) {
199 $hook_class = 'hooks_'.$ext['package'];
200 if ($ext['active'] && class_exists($hook_class)) {
201 $Hooks[$ext['package']] = new $hook_class;
206 Non active hooks are not included in $Hooks array, so we can use special function to
209 function activate_hooks($ext, $comp)
213 $hooks = @$Hooks[$ext];
215 $hookclass = 'hooks_'.$ext;
216 if (class_exists($hookclass))
217 $hooks = new $hookclass;
219 return true; // extension does not have hooks file
224 return $hooks->activate_extension($comp, false);
227 Calls hook $method defined in extension $ext (if any)
229 function hook_invoke($ext, $method, &$data, $opts=null)
235 if (isset($Hooks[$ext]) && method_exists($Hooks[$ext], $method)) {
236 set_ext_domain('modules/'.$ext);
237 $ret = $Hooks[$ext]->$method($data, $opts);
244 Calls hook $methods defined in all extensions (if any)
246 function hook_invoke_all($method, &$data, $opts=null)
252 foreach($Hooks as $ext => $hook)
253 if (method_exists($hook, $method)) {
254 set_ext_domain('modules/'.$ext);
255 $result = $hook->$method($data, $opts);
256 if (isset($result) && is_array($result)) {
257 $return = array_merge_recursive($return, $result);
258 } else if (isset($result)) {
266 Returns first non-null result returned from hook.
268 function hook_invoke_first($method, &$data, $opts=null)
274 foreach($Hooks as $ext => $hook) {
275 if (method_exists($hook, $method)) {
276 set_ext_domain('modules/'.$ext);
277 $result = $hook->$method($data, $opts);
286 Returns result of last hook installed. Helps implement hooks overriding by
287 extensions installed later.
290 function hook_invoke_last($method, &$data, $opts=null)
296 foreach($Hooks as $ext => $hook) {
297 if (method_exists($hook, $method)) {
303 set_ext_domain('modules/'.$found);
304 $ret = $Hooks[$found]->$method($data, $opts);
309 //------------------------------------------------------------------------------------------
310 // Database transaction hooks.
311 // $type - type of transaction (simplifies cart processing)
312 // $cart - transaction cart
313 // $args is optional array of parameters
315 // For FA 2.3 prewrite, postwrite and prevoid hooks are implemented for following transaction types:
317 // ST_BANKPAYMENT, ST_BANKDEPOSIT, ST_BANKTRANSFER,
318 // ST_SALESORDER, ST_SALESQUOTE, ST_SALESINVOICE, ST_CUSTCREDIT, ST_CUSTPAYMENT, ST_CUSTDELIVERY,
319 // ST_LOCTRANSFER, ST_INVADJUST,
320 // ST_PURCHORDER, ST_SUPPINVOICE, ST_SUPPCREDIT, ST_SUPPAYMENT, ST_SUPPRECEIVE,
321 // ST_WORKORDER, ST_MANUISSUE, ST_MANURECEIVE,
324 Invoked after transaction has been read from database to cart.
327 //function hook_db_postread(&$cart, $type)
329 // hook_invoke_all('db_postread', $cart, $type);
333 Invoked before transaction is written to database.
335 function hook_db_prewrite(&$cart, $type)
337 return hook_invoke_all('db_prewrite', $cart, $type);
341 Invoked after transaction has been written to database.
343 function hook_db_postwrite(&$cart, $type)
345 return hook_invoke_all('db_postwrite', $cart, $type);
348 Invoked before transaction is voided
350 function hook_db_prevoid($type, $type_no)
352 return hook_invoke_all('db_prevoid', $type, $type_no);
355 //-------------------------------------------------------------------------------------------
359 // Alternative exchange rates feeds.
361 function hook_retrieve_exrate($currency, $date)
363 return hook_invoke_last('retrieve_exrate', $currency, $date);
366 // Generic function called at the end of Tax Report (report 709)
368 function hook_tax_report_done()
370 return hook_invoke_all('tax_report_done', $dummy);
373 // Amount in words displayed on various documents (especially sales invoice)
375 function hook_price_in_words($amount, $document)
377 return hook_invoke_last('price_in_words', $amount, $document);
380 // Session handling hook. This is special case of hook class which have to be run before session is started.
381 // If fa_session_manager class is defined in any installed extension, this class provides session handling
382 // for application, otherwise standard php session handling is used.
384 function hook_session_start($company)
386 if (class_exists('fa_session_manager')) {
387 global $SessionManager;
388 $SessionManager = new fa_session_manager($company);
389 return $SessionManager->installed;