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<?php
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/*
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Current function are stripped to absolute minimum. Most import about this module is the basic DB structures that will be needed in the other modules.
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For the future it is expected that some basic functions needed by several AC modules will get abstracted to this module.
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by Mixel Kiemen
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*/
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function adaptive_context_help($field)
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{
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switch ($field)
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{
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case 'admin/modules#description':
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return t('basic modules for adaptive context package, defines groups DB structure.');
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}
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}
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//the hook_group_audience_sugestions (hook from node_access)
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function adaptive_context_group_audience_sugestions($node)
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{
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$groupquery = db_query("SELECT g.type, g.gid, g.name FROM {ac_group} g INNER JOIN {ac_part} gp ON gp.pid=g.gid AND gp.pid=$node->uid AND gp.type='member'");
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$usergroups = array();
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while($object = db_fetch_object($groupquery))
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$usergroups[$object->type][$object->gid] = $object->name;
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return $usergroups;
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}
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/***********************************************************/
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/* group functions */
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/***********************************************************/
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//some generaly used DB functions
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//returns a query that will get all the parts for a part-type (used by node_access)
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function ac_parts_query($pid, $ptype)
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{
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return "SELECT gid, cid FROM {ac_part} gp_aud WHERE gp_aud.pid=$pid AND gp_aud.ptype= '$ptype'";
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}
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//get the group by id
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function ac_group_load($gid)
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{
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if(!$gid)
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return;
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$group = db_fetch_object(db_query("SELECT * FROM {ac_group} WHERE gid = $gid"));
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ac_group_module_invoke('load', $group);
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return $group;
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}
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function ac_group_module_invoke($op, &$group)
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{
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foreach (module_list() as $module)
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{
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$function = $module .'_groupAPI';
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if (function_exists($function))
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$function($op, $group);
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}
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}
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/***********************************************************/
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/* ac_block functions */
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/***********************************************************/
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//Two blocks for user and group are created. Other modules will use the blocks to add functions
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//By saving the menu $pid we can add functions to the menu later on
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function adaptive_context_menu($may_cache)
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{
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$links = array();
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if ($may_cache)
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{
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$item = array('mid' => 0, 'pid' => 0, 'path' => '', 'weight' => 0, 'type' => MENU_CUSTOM_MENU, 'title' =>'Identity space');
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if(!ac_block_mid('Identity space'))
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menu_edit_item_save($item);
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$item = array('mid' => 0, 'pid' => 0, 'path' => '', 'weight' => 0, 'type' => MENU_CUSTOM_MENU, 'title' =>'Group space');
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if(!ac_block_mid('Group space'))
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menu_edit_item_save($item);
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}
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return $links;
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}
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function adaptive_context_block($op='list', $delta=0, $edit = array())
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{
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if ($op == "list")
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{
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$block[0]["info"] = t('Identity space');
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$block[1]["info"] = t('Group space');
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} else if ($op == 'view')
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switch($delta)
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{
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case 0:
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$uid = ac_block_id('user');
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if(!$uid)
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break;
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$thisuser = user_load(array('uid'=>$uid));
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$output = theme('menu_tree',ac_block_mid('Identity space'));
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$block['subject'] = $thisuser->name.'<hr><div align="right"><font size=1>Identity space</font></div>';
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$block['content'] = $output;
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break;
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case 1:
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$gid = ac_block_id('group');
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if(!$gid)
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break;
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$group = ac_group_load($gid);
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$output .= theme('menu_tree', ac_block_mid('Group space'));
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$block['subject'] = $group->name.'<hr><div align="right"><font size=1>Group space</font></div>';
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$block['content'] = $output;
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break;
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}
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return $block;
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}
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//use the user api to save the identity $uid => user block change when klicking on user
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function adaptive_context_user($type, &$edit, &$thisuser, $category = NULL)
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{
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global $user;
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if($user->uid != $thisuser->uid)
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ac_block_id('user', $thisuser->uid);
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}
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//getting and setting the block_id
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// TO DO make it work with cookie instead of var.
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function ac_block_id($level, $lid = NULL)
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{
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global $user;
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if (!$user->uid)
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return 0;
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if (!is_null($lid)) // => set
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variable_set('ac_block_id_'.$level.$user->uid, $lid);
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return variable_get('ac_block_id_'.$level.$user->uid, 0);
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}
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function ac_block_mid($title)
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{
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$query = db_query("SELECT mid FROM {menu} WHERE title ='$title'");
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if(!db_num_rows($query))
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return 0;
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return db_result($query);
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}
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?>
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