modules/cart_theme/cart_theme.module

<?php
// $Id: cart_theme.module,v 1.5 2007/10/16 18:51:42 suydam Exp $

/**
 * @file
 * Theme the checkout experience based on settings from taxonomy theme and items in the user's cart
 */

// hook_menu()
function cart_theme_menu($may_cache) {
  $items = array();
  if ( !$may_cache ) {
	  if ( preg_match( "/cart\/checkout/",$_GET['q'] ) 
	       || preg_match( "/cart\/review/", $_GET['q'] )
	       || preg_match( "/authorize_net/", $_GET['q'] )
	       || preg_match( "/skipcart/", $_GET['q'] )
	       || ( isset( $_GET['destination'] ) && preg_match( "/^cart/", $_GET['destination'] ) )
		) {
		watchdog("cart_theme","in hook_menu, attempting to perform cart_get_items()");
		$our_items = array();
		$cart_items = cart_get_items();
		foreach ( array_keys( $cart_items ) as $key ) {
			if ( is_numeric( $key ) ) {
				$our_items[] = $key;
			}
		}
		if ( count( $our_items ) ) {
			watchdog( "cart_theme","Checking for custom theme on nid=" . $our_items[0]);
			watchdog('cart_theme',"themeing from within hook_menu() using cart_get_items");
			_cart_themer( $our_items[0] );
		}
		elseif ( preg_match('/store\/payment\/authorize_net/', $_GET['q'] ) ) {
			// in this situation, arg(3) contains the txnid.
			// get the items from that transaction and cart theme based on that.
			$txn = store_transaction_load( arg(3) );
			//drupal_set_message('<PRE>' . sprint_r( $txn ) . '</pre>');
			foreach ( array_keys( $txn->items ) as $key ) {
				if ( is_numeric( $key ) ) {
					$our_items[] = $txn->items[$key]->nid;
				}
			}
			if ( count( $our_items ) ) {
				watchdog('cart_theme',"themeing from within hook_menu() using store_transaction_load");
				watchdog( "cart_theme","Checking for custom theme on nid=" . $our_items[0]);
				_cart_themer( $our_items[0] );
			}
		}
		else {
			watchdog('cart_theme','Uh-oh. Nothing in the cart.  PLAN B!');
		}
	  }
  }
  return $items;
}

// create the "should be part of PHP's core" sprint_r function...but only if I haven't
// already added it elsewhere...
if (!function_exists('sprint_r')) {
	function sprint_r($var) {
 		ob_start();
 		print_r($var);
 		$ret = ob_get_contents();
 		ob_end_clean();
 		return $ret;
 	}
}

function _cart_theme_by_nodetype( $nid, &$custom_theme ) {
	// code taken largely from _taxonomy_theme_select_term
    	$nodetype = db_fetch_object(db_query('SELECT type FROM {node} WHERE nid = %d', $nid));
	if ( $nodetype->type ) {
      		$custom_theme = variable_get('taxonomy_theme_nodetype|'.$nodetype->type, $default_theme);
	}
}

function _cart_theme_by_alltaxo( $nid, &$custom_theme ) {
	// code taken largely from _taxonomy_theme_select_term
    	$terms = taxonomy_node_get_terms($nid);
    	$term = current($terms);
    	$vid = $term->vid;
    	$custom_theme = variable_get('taxonomy_theme_all|'.$term->tid, $default_theme);
}
function _cart_theme_by_vocab( $nid, &$custom_theme ) {
	// code taken largely from _taxonomy_theme_select_term
	$terms = taxonomy_node_get_terms( $nid );
	$term = current( $terms ); // currnt takes the first element of the array (vs. pop which takes the last)
	$vid = $term->vid;
	//drupal_set_message("<h1>TERMS</h1><PRE>" . sprint_r( $terms ) . "</pre>");
    	$custom_theme = variable_get('taxonomy_theme_vocab|'.$vid, $default_theme);
}
function _cart_theme_by_term( $nid, &$custom_theme ) {
	// code taken largely from _taxonomy_theme_select_term
	$selector_vid = variable_get( 'taxonomy_theme_selector','');
    	$terms = taxonomy_node_get_terms_by_vocabulary($nid, $selector_vid);
    	if ($terms) {
      		$term = current($terms);
      		$custom_theme = variable_get('taxonomy_theme_term|'.$term->tid, $default_theme);
    	}
}

function _cart_themer( $nid ) {
	// we borrow code from (and call functions directly from) taxonomY-theme.module here
	// module tested with taxonomy_theme v5.x-1.1
	global $custom_theme;
  	$default_theme = variable_get('theme_default', 'bluemarine');

	// this one is set by taxonomy_theme module
	$theme_method = variable_get('taxonomy_theme_method',0);

	watchdog("cart_theme","_cart_themer setting theme based on nid=$nid");
	watchdog("cart_theme","Default theme is $default_theme");
	watchdog("cart_theme","BEFORE: custom_theme = $custom_theme");
	//drupal_set_message("BEFORE: custom_theme = $custom_theme");

	// call out to taxonomy_theme.module for help themeing the nid we need.
    	require_once (drupal_get_path('module', 'taxonomy_theme').'/taxonomy_theme_taxonomy.inc');

	// code pasted from taxonomy_theme module directly..
	// couldn't use their functins though...despite asking for $uri (which we could alter to be node/$nid)
	// , it still used arg(x) to determine theme.. boooo...
	if ( $theme_method ) {
		switch($theme_method) {
      			case TAXOTHEME_TERM:
				watchdog("cart_theme","theme based on term ($theme_method)");
				_cart_theme_by_term( $nid, $custom_theme );
        			break;
      			case TAXOTHEME_VOCAB:
				watchdog("cart_theme","theme based on vocab ($theme_method)");
        			_cart_theme_by_vocab($nid, $custom_theme );
        			break;
      			case TAXOTHEME_ALLTAXO:
				watchdog("cart_theme","theme based on all taxo ($theme_method)");
        			_cart_theme_by_alltaxo($nid, $custom_theme);
        			break;
      			case TAXOTHEME_NODETYPE:
				//drupal_set_message("theme based on all Node type ($theme_method)");
        			_cart_theme_by_nodetype($nid, $custom_theme);
        			break;
			default: 
				// do nothing
				watchdog("cart_theme","theme method case didn't happen.... theme_method=$theme_method");
				//drupal_set_message("theme method case didn't happen.... theme_method=$theme_method");
		}
		watchdog("cart_theme","AFTER: custom_theme = $custom_theme");
		//drupal_set_message("AFTER: custom_theme = $custom_theme");
	}
	elseif ( variable_get('taxonomy_theme_extended_enable',0) ) {
		watchdog("cart_theme","themeing by path ($uri)");
		//drupal_set_message("themeing by path");
		_cart_theme_by_path( $nid, $custom_theme );
		//drupal_set_message("AFTER: custom_theme = $custom_theme");
		watchdog('cart_theme',"AFTER: custom_theme = $custom_theme");
	}
	else {
		watchdog("cart_theme","ALERT:  NO THEME METHOD FOUND (theme_method = $theme_method)");
		//drupal_set_message("ALERT:  NO THEME METHOD FOUND (theme_method = $theme_method)");
	}

	if ( $custom_theme && ($custom_theme != $default_theme ) ) {
		watchdog("cart_theme","calling init_theme... with $custom_theme");
		//drupal_set_message("calling init_theme... with $custom_theme");
		init_theme();
	}
}

function _cart_theme_by_path( $nid, $custom_theme ) {
	// normally they theme by the URI...we need to get the first item out of the cart, construct a URI for that and theme with that instead.
	global $custom_theme;
	$uri = "node/$nid";
	watchdog("cart_theme","path URI = $uri");

  	$offset  = (variable_get('clean_url', 0) ? 0 : 3) + strlen(base_path());
	watchdog("cart_theme","path OFFSET = $offset");
	//drupal_set_message("OFFSET = $offset");
  	$alias_uri = $uri;
  	if (module_exists('i18n')) {
    		i18n_get_lang_prefix($alias_uri, true);
  	}
  	$alias_uri = $alias_uri ? $alias_uri : '/';
	//drupal_set_message("ALIAS URI = $alias_uri");
	watchdog("cart_theme","path ALIAS URI = $alias_uri");
  	$themes = list_themes();
  	foreach ($themes as $themex) {
		//drupal_set_message("THEMEX = <PRE>" . sprint_r($themex) . '</pre>');
    		$paths_regexp = _taxonomy_theme_expcache($themex->name);
		//drupal_set_message("Paths regexp = $paths_regexp");
		watchdog('cart_theme',"Paths regexp = $paths_regexp");
    		if (preg_grep($paths_regexp, array($uri, $alias_uri))) {
			watchdog('cart_theme',"PATH setting custom theme to " . $themex->name);
			//drupal_set_message("setting custom theme to " . $themex->name);
      			$custom_theme = $themex->name;
    		}
		else {
			//drupal_set_message("NO match on the $paths_regexp with this one");
			watchdog('cart_theme',"PATH no match on the $paths_regexp with this one");
		}
  	}
}

function cart_theme_form_alter( $form_id, &$form ) {
	//watchdog("cart_theme","FORM ALTER Form id = $form_id");
	//drupal_set_message("FORM ALTER Form id = $form_id");
	if ( $form_id == 'cart_view_form' ) {
		$our_items = array();
		if (isset( $form['items'] ) && count( $form['items'] ) ) {
			foreach ( array_keys( $form['items'] ) as $key ) {
				if ( is_numeric( $key ) ) {
					$our_items[] = $key;
				}
			}
		}
		else {
			$cart_items = cart_get_items();
			foreach ( array_keys( $cart_items ) as $key ) {
				if ( is_numeric( $key ) ) {
					$our_items[] = $key;
				}
			}
		}

		watchdog("cart_theme","our items = " . sprint_r( $our_items ));
		
		if ( count( $our_items ) ) {
			// call our themer with the lightest item in the cart (only the nid is required)
			watchdog('cart_theme',"Theming from within hook_form_alter()");
			_cart_themer( $our_items[0] );
		}
	}
}

function cart_theme_ecommerceapi( &$txn, $op ) {
	//watchdog("cart_theme","Ecommerce api op = $op");
}

function cart_theme_productapi( &$node, $op, $arg3=NULL, $arg4=NULL) {
	//watchdog("cart_theme","Product api op = $op");
	//watchdog("cart_theme","h1>NODE</h1><PRE>" . sprint_r( $node ) . "</pre>");
}

function cart_theme_transactionapi( &$txn, $op, $a3=NULL, $a4 ) {
	//watchdog("cart_theme","Txn api op = $op");
}

function cart_theme_nodeapi(&$node, $op) {
	//watchdog("cart_theme","Node api op = $op" );
	//watchdog("cart_thtme","nid = " . $node->nid );
}

function cart_theme_checkoutapi(&$txn, $op, $arg3=NULL, $arg4=NULL) {
	//watchdog("cart_theme","checkoutapi op = $op");
	//watchdog("cart_theme","h1>TXN</h1>" . sprint_r( $txn ));
}


1	<?php
2	// $Id: cart_theme.module,v 1.5 2007/10/16 18:51:42 suydam Exp $
3
4	/**
5	* @file
6	* Theme the checkout experience based on settings from taxonomy theme and items in the user's cart
7	*/
8
9	// hook_menu()
10	function cart_theme_menu($may_cache) {
11	$items = array();
12	if ( !$may_cache ) {
13	if ( preg_match( "/cart\/checkout/",$_GET['q'] )
14	\|\| preg_match( "/cart\/review/", $_GET['q'] )
15	\|\| preg_match( "/authorize_net/", $_GET['q'] )
16	\|\| preg_match( "/skipcart/", $_GET['q'] )
17	\|\| ( isset( $_GET['destination'] ) && preg_match( "/^cart/", $_GET['destination'] ) )
18	) {
19	watchdog("cart_theme","in hook_menu, attempting to perform cart_get_items()");
20	$our_items = array();
21	$cart_items = cart_get_items();
22	foreach ( array_keys( $cart_items ) as $key ) {
23	if ( is_numeric( $key ) ) {
24	$our_items[] = $key;
25	}
26	}
27	if ( count( $our_items ) ) {
28	watchdog( "cart_theme","Checking for custom theme on nid=" . $our_items[0]);
29	watchdog('cart_theme',"themeing from within hook_menu() using cart_get_items");
30	_cart_themer( $our_items[0] );
31	}
32	elseif ( preg_match('/store\/payment\/authorize_net/', $_GET['q'] ) ) {
33	// in this situation, arg(3) contains the txnid.
34	// get the items from that transaction and cart theme based on that.
35	$txn = store_transaction_load( arg(3) );
36	//drupal_set_message('<PRE>' . sprint_r( $txn ) . '</pre>');
37	foreach ( array_keys( $txn->items ) as $key ) {
38	if ( is_numeric( $key ) ) {
39	$our_items[] = $txn->items[$key]->nid;
40	}
41	}
42	if ( count( $our_items ) ) {
43	watchdog('cart_theme',"themeing from within hook_menu() using store_transaction_load");
44	watchdog( "cart_theme","Checking for custom theme on nid=" . $our_items[0]);
45	_cart_themer( $our_items[0] );
46	}
47	}
48	else {
49	watchdog('cart_theme','Uh-oh. Nothing in the cart. PLAN B!');
50	}
51	}
52	}
53	return $items;
54	}
55
56	// create the "should be part of PHP's core" sprint_r function...but only if I haven't
57	// already added it elsewhere...
58	if (!function_exists('sprint_r')) {
59	function sprint_r($var) {
60	ob_start();
61	print_r($var);
62	$ret = ob_get_contents();
63	ob_end_clean();
64	return $ret;
65	}
66	}
67
68	function _cart_theme_by_nodetype( $nid, &$custom_theme ) {
69	// code taken largely from _taxonomy_theme_select_term
70	$nodetype = db_fetch_object(db_query('SELECT type FROM {node} WHERE nid = %d', $nid));
71	if ( $nodetype->type ) {
72	$custom_theme = variable_get('taxonomy_theme_nodetype\|'.$nodetype->type, $default_theme);
73	}
74	}
75
76	function _cart_theme_by_alltaxo( $nid, &$custom_theme ) {
77	// code taken largely from _taxonomy_theme_select_term
78	$terms = taxonomy_node_get_terms($nid);
79	$term = current($terms);
80	$vid = $term->vid;
81	$custom_theme = variable_get('taxonomy_theme_all\|'.$term->tid, $default_theme);
82	}
83	function _cart_theme_by_vocab( $nid, &$custom_theme ) {
84	// code taken largely from _taxonomy_theme_select_term
85	$terms = taxonomy_node_get_terms( $nid );
86	$term = current( $terms ); // currnt takes the first element of the array (vs. pop which takes the last)
87	$vid = $term->vid;
88	//drupal_set_message("<h1>TERMS</h1><PRE>" . sprint_r( $terms ) . "</pre>");
89	$custom_theme = variable_get('taxonomy_theme_vocab\|'.$vid, $default_theme);
90	}
91	function _cart_theme_by_term( $nid, &$custom_theme ) {
92	// code taken largely from _taxonomy_theme_select_term
93	$selector_vid = variable_get( 'taxonomy_theme_selector','');
94	$terms = taxonomy_node_get_terms_by_vocabulary($nid, $selector_vid);
95	if ($terms) {
96	$term = current($terms);
97	$custom_theme = variable_get('taxonomy_theme_term\|'.$term->tid, $default_theme);
98	}
99	}
100
101	function _cart_themer( $nid ) {
102	// we borrow code from (and call functions directly from) taxonomY-theme.module here
103	// module tested with taxonomy_theme v5.x-1.1
104	global $custom_theme;
105	$default_theme = variable_get('theme_default', 'bluemarine');
106
107	// this one is set by taxonomy_theme module
108	$theme_method = variable_get('taxonomy_theme_method',0);
109
110	watchdog("cart_theme","_cart_themer setting theme based on nid=$nid");
111	watchdog("cart_theme","Default theme is $default_theme");
112	watchdog("cart_theme","BEFORE: custom_theme = $custom_theme");
113	//drupal_set_message("BEFORE: custom_theme = $custom_theme");
114
115	// call out to taxonomy_theme.module for help themeing the nid we need.
116	require_once (drupal_get_path('module', 'taxonomy_theme').'/taxonomy_theme_taxonomy.inc');
117
118	// code pasted from taxonomy_theme module directly..
119	// couldn't use their functins though...despite asking for $uri (which we could alter to be node/$nid)
120	// , it still used arg(x) to determine theme.. boooo...
121	if ( $theme_method ) {
122	switch($theme_method) {
123	case TAXOTHEME_TERM:
124	watchdog("cart_theme","theme based on term ($theme_method)");
125	_cart_theme_by_term( $nid, $custom_theme );
126	break;
127	case TAXOTHEME_VOCAB:
128	watchdog("cart_theme","theme based on vocab ($theme_method)");
129	_cart_theme_by_vocab($nid, $custom_theme );
130	break;
131	case TAXOTHEME_ALLTAXO:
132	watchdog("cart_theme","theme based on all taxo ($theme_method)");
133	_cart_theme_by_alltaxo($nid, $custom_theme);
134	break;
135	case TAXOTHEME_NODETYPE:
136	//drupal_set_message("theme based on all Node type ($theme_method)");
137	_cart_theme_by_nodetype($nid, $custom_theme);
138	break;
139	default:
140	// do nothing
141	watchdog("cart_theme","theme method case didn't happen.... theme_method=$theme_method");
142	//drupal_set_message("theme method case didn't happen.... theme_method=$theme_method");
143	}
144	watchdog("cart_theme","AFTER: custom_theme = $custom_theme");
145	//drupal_set_message("AFTER: custom_theme = $custom_theme");
146	}
147	elseif ( variable_get('taxonomy_theme_extended_enable',0) ) {
148	watchdog("cart_theme","themeing by path ($uri)");
149	//drupal_set_message("themeing by path");
150	_cart_theme_by_path( $nid, $custom_theme );
151	//drupal_set_message("AFTER: custom_theme = $custom_theme");
152	watchdog('cart_theme',"AFTER: custom_theme = $custom_theme");
153	}
154	else {
155	watchdog("cart_theme","ALERT: NO THEME METHOD FOUND (theme_method = $theme_method)");
156	//drupal_set_message("ALERT: NO THEME METHOD FOUND (theme_method = $theme_method)");
157	}
158
159	if ( $custom_theme && ($custom_theme != $default_theme ) ) {
160	watchdog("cart_theme","calling init_theme... with $custom_theme");
161	//drupal_set_message("calling init_theme... with $custom_theme");
162	init_theme();
163	}
164	}
165
166	function _cart_theme_by_path( $nid, $custom_theme ) {
167	// normally they theme by the URI...we need to get the first item out of the cart, construct a URI for that and theme with that instead.
168	global $custom_theme;
169	$uri = "node/$nid";
170	watchdog("cart_theme","path URI = $uri");
171
172	$offset = (variable_get('clean_url', 0) ? 0 : 3) + strlen(base_path());
173	watchdog("cart_theme","path OFFSET = $offset");
174	//drupal_set_message("OFFSET = $offset");
175	$alias_uri = $uri;
176	if (module_exists('i18n')) {
177	i18n_get_lang_prefix($alias_uri, true);
178	}
179	$alias_uri = $alias_uri ? $alias_uri : '/';
180	//drupal_set_message("ALIAS URI = $alias_uri");
181	watchdog("cart_theme","path ALIAS URI = $alias_uri");
182	$themes = list_themes();
183	foreach ($themes as $themex) {
184	//drupal_set_message("THEMEX = <PRE>" . sprint_r($themex) . '</pre>');
185	$paths_regexp = _taxonomy_theme_expcache($themex->name);
186	//drupal_set_message("Paths regexp = $paths_regexp");
187	watchdog('cart_theme',"Paths regexp = $paths_regexp");
188	if (preg_grep($paths_regexp, array($uri, $alias_uri))) {
189	watchdog('cart_theme',"PATH setting custom theme to " . $themex->name);
190	//drupal_set_message("setting custom theme to " . $themex->name);
191	$custom_theme = $themex->name;
192	}
193	else {
194	//drupal_set_message("NO match on the $paths_regexp with this one");
195	watchdog('cart_theme',"PATH no match on the $paths_regexp with this one");
196	}
197	}
198	}
199
200	function cart_theme_form_alter( $form_id, &$form ) {
201	//watchdog("cart_theme","FORM ALTER Form id = $form_id");
202	//drupal_set_message("FORM ALTER Form id = $form_id");
203	if ( $form_id == 'cart_view_form' ) {
204	$our_items = array();
205	if (isset( $form['items'] ) && count( $form['items'] ) ) {
206	foreach ( array_keys( $form['items'] ) as $key ) {
207	if ( is_numeric( $key ) ) {
208	$our_items[] = $key;
209	}
210	}
211	}
212	else {
213	$cart_items = cart_get_items();
214	foreach ( array_keys( $cart_items ) as $key ) {
215	if ( is_numeric( $key ) ) {
216	$our_items[] = $key;
217	}
218	}
219	}
220
221	watchdog("cart_theme","our items = " . sprint_r( $our_items ));
222
223	if ( count( $our_items ) ) {
224	// call our themer with the lightest item in the cart (only the nid is required)
225	watchdog('cart_theme',"Theming from within hook_form_alter()");
226	_cart_themer( $our_items[0] );
227	}
228	}
229	}
230
231	function cart_theme_ecommerceapi( &$txn, $op ) {
232	//watchdog("cart_theme","Ecommerce api op = $op");
233	}
234
235	function cart_theme_productapi( &$node, $op, $arg3=NULL, $arg4=NULL) {
236	//watchdog("cart_theme","Product api op = $op");
237	//watchdog("cart_theme","h1>NODE</h1><PRE>" . sprint_r( $node ) . "</pre>");
238	}
239
240	function cart_theme_transactionapi( &$txn, $op, $a3=NULL, $a4 ) {
241	//watchdog("cart_theme","Txn api op = $op");
242	}
243
244	function cart_theme_nodeapi(&$node, $op) {
245	//watchdog("cart_theme","Node api op = $op" );
246	//watchdog("cart_thtme","nid = " . $node->nid );
247	}
248
249	function cart_theme_checkoutapi(&$txn, $op, $arg3=NULL, $arg4=NULL) {
250	//watchdog("cart_theme","checkoutapi op = $op");
251	//watchdog("cart_theme","h1>TXN</h1>" . sprint_r( $txn ));
252	}
253
254