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165 lines
9.6 KiB
165 lines
9.6 KiB
<?php //$id: $
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/**
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* Script that updates the database by adding the four new learning path tables (that allow scorm data)
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* @package dokeos.learnpath
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* @author Yannick Warnier <ywarnier@beeznest.org>
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*/
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/**
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* Script
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*/
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require_once('back_compat.inc.php');
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require_once('learnpath.class.php');
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require_once('scorm.class.php');
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/**
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* New tables definition:
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*/
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//table replacing learnpath_main
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$new_lp = 'lp';
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$create_lp = "CREATE TABLE IF NOT EXISTS XXX_$new_lp (" .
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"id int unsigned primary key auto_increment," . //unique ID, generated by MySQL
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"lp_type smallint unsigned not null," . //lp_types can be found in the main database's lp_type table
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"name tinytext not null," . //name is the text name of the learning path (e.g. Word 2000)
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"ref tinytext null," . //ref for SCORM elements is the SCORM ID in imsmanifest. For other learnpath types, just ignore
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"description text null,". //textual description
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"path text not null," . //path, starting at the platforms root (so all paths should start with 'courses/...' for now)
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"force_commit tinyint unsigned not null default 0, " . //stores the default behaviour regarding SCORM information
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"default_view_mod char(32) not null default 'embedded'," .//stores the default view mode (embedded or fullscreen)
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"default_encoding char(32) not null default 'ISO-8859-1', " . //stores the encoding detected at learning path reading
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"display_order int unsigned not null default 0," . //order of learnpaths display in the learnpaths list - not really important
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"content_maker tinytext not null default ''," . //content maker (ENI, Articulate, ...)
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"content_local varchar(32) not null default 'local'," . //content localisation ('local' or 'distant')
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"content_license text not null default ''," . //content license
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"prevent_reinit tinyint unsigned not null default 1," . //stores the default behaviour regarding items re-initialisation when viewed a second time after success
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"js_lib tinytext not null default ''," . //the JavaScript library to load for this lp
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"debug tinyint unsigned not null default 0" . //stores the default behaviour regarding items re-initialisation when viewed a second time after success
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")";
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//new table, aimed at keeping track of attempts made to one learning path
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//no row exists if nobody has opened any learning path yet. A row is only written when someone opens a learnpath
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$new_lp_view = 'lp_view';
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$create_lp_view = "CREATE TABLE IF NOT EXISTS XXX_$new_lp_view (" .
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"id int unsigned primary key auto_increment," . //unique ID from MySQL
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"lp_id int unsigned not null," . //learnpath ID from 'lp'
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"user_id int unsigned not null," . //user ID from main.user
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"view_count smallint unsigned not null default 0," . //integer counting the amount of times this learning path has been attempted
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"last_item int unsigned not null default 0," . //last item seen in this view
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"progress int unsigned default 0" .
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")";
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//table replacing learnpath_item AND learnpath_chapter
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$new_lp_item = 'lp_item';
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$create_lp_item = "CREATE TABLE IF NOT EXISTS XXX_$new_lp_item (" .
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"id int unsigned primary key auto_increment," . //unique ID from MySQL
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"lp_id int unsigned not null," . //lp_id from 'lp'
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"item_type char(32) not null default 'dokeos_document'," . //can be dokeos_document, dokeos_chapter or scorm_asset, scorm_sco, scorm_chapter
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"ref tinytext not null default ''," . //the ID given to this item in the imsmanifest file
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"title tinytext not null," . //the title/name of this item (to display in the T.O.C.)
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"description tinytext not null default ''," . //the description of this item (to display in the T.O.C.)
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"path text not null," . //the path to that item, starting at 'courses/...' level
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"min_score float unsigned not null default 0," . //min score allowed
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"max_score float unsigned not null default 100," . //max score allowed
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"mastery_score float unsigned null," . //minimum score to pass the test
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"parent_item_id int unsigned not null default 0," . //the item one level higher
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"previous_item_id int unsigned not null default 0," . //the item before this one in the sequential learning order (MySQL id)
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"next_item_id int unsigned not null default 0," . //the item after this one in the sequential learning order (MySQL id)
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"display_order int unsigned not null default 0," . //this is needed for ordering items under the same parent (previous_item_id doesn't give correct order after reordering)
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"prerequisite char(64) null," . //prerequisites in AICC scripting language as defined in the SCORM norm (allow logical operators)
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"launch_data text not null default ''" . //data from imsmanifest <item>
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")";
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//table replacing the learnpath_user table
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$new_lp_item_view = 'lp_item_view';
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$create_lp_item_view = "CREATE TABLE IF NOT EXISTS XXX_$new_lp_item_view (" .
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"id bigint unsigned primary key auto_increment," . //unique ID
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"lp_item_id int unsigned not null," . //item ID (MySQL id)
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"lp_view_id int unsigned not null," . // learning path view id (attempt)
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"view_count int unsigned not null default 0," . //how many times this item has been viewed in the current attempt (generally 0 or 1)
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"start_time int unsigned not null," . //when did the user open it?
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"total_time int unsigned not null default 0," . //after how many seconds did he close it?
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"score float unsigned not null default 0," . //score returned by SCORM or other techs
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"status char(32) not null default 'not attempted'," . //status for this item (SCORM)
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"suspend_data text null default ''," .
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"lesson_location text null default ''" .
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")";
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//table implementing item_view interactions
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$new_lp_iv_interaction = 'lp_iv_interaction';
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$create_lp_iv_interaction = "CREATE TABLE IF NOT EXISTS XXX_$new_lp_iv_interaction (" .
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"id bigint unsigned primary key auto_increment," .
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"order_id smallint unsigned not null default 0,". //internal order (0->...) given by Dokeos but usable by sco
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"lp_iv_id bigint unsigned not null," . //identifier of the related sco_view
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"interaction_id varchar(255) not null default ''," . //sco-specific, given by the sco
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"interaction_type varchar(255) not null default ''," . //literal values, SCORM-specific (see p.63 of SCORM 1.2 RTE)
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"weighting double not null default 0," .
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"completion_time varchar(16) not null default ''," . //completion time for the interaction (timestamp in a day's time) - expected output format is scorm time
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"correct_responses text not null default ''," . //actually a serialised array. See p.65 os SCORM 1.2 RTE)
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"student_response text not null default ''," . //student response (format depends on type)
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"result varchar(255) not null default ''," . //textual result
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"latency varchar(16) not null default ''" . //time necessary for completion of the interaction
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")";
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//table located in the main DB and holding a list of the possible learning paths types.
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//so far we only have 'dokeos' and 'scorm'
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$new_lp_type = 'lp_type';
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$create_lp_type = "CREATE TABLE IF NOT EXISTS YYY_$new_lp_type (" .
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"id smallint unsigned primary key auto_increment," .
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"name char(32) not null default 'dokeos'," .
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"description char(255) null" .
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")";
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/**
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* First create the lp, lp_view, lp_item and lp_item_view tables in each course's DB
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*/
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$main_db = Database::get_main_database();
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$sql = "SELECT * FROM $main_db.course";
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echo "$sql<br />\n";
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$res = api_sql_query($sql);
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$create_table = str_replace('YYY_',$main_db.'.',$create_lp_type);
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echo "$create_table<br />\n";
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api_sql_query($create_table);
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$ins_elems = "INSERT INTO $main_db.$new_lp_type (id,name,description) VALUES (1,'dokeos','The default format of a learning path in Dokeos')";
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api_sql_query($ins_elems);
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$ins_elems = "INSERT INTO $main_db.$new_lp_type (id,name,description) VALUES (2,'scorm','SCORM format')";
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api_sql_query($ins_elems);
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$courses_list = array();
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$courses_id_list = array();
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$courses_dir_list = array();
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while ($row = Database::fetch_array($res))
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{
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//TODO change this db name construction to use DB instead of claro_main.conf settings
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$course_pref = Database::get_course_table_prefix();
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$dbname = $row['db_name'].'.'.$course_pref;
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$courses_list[] = $row['db_name'];
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$courses_id_list[$row['code']] = $row['db_name'];
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$courses_dir_list[$row['code']] = $row['directory'];
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if(empty($_GET['delete'])){
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echo "Creating tables for ".$row['db_name']."<br />\n";
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$create_table = str_replace('XXX_',$dbname,$create_lp);
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echo "$create_table<br />\n";
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api_sql_query($create_table);
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$create_table = str_replace('XXX_',$dbname,$create_lp_view);
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echo "$create_table<br />\n";
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api_sql_query($create_table);
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$create_table = str_replace('XXX_',$dbname,$create_lp_item);
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echo "$create_table<br />\n";
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api_sql_query($create_table);
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$create_table = str_replace('XXX_',$dbname,$create_lp_item_view);
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echo "$create_table<br />\n";
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api_sql_query($create_table);
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$create_table = str_replace('XXX_',$dbname,$create_lp_iv_interaction);
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echo "$create_table<br />\n";
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api_sql_query($create_table);
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echo "<br /><br />\n";
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}else{
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echo "Deleting tables for ".$row['db_name']."<br />\n";
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$del_sql = "DROP TABLE ".$dbname.$new_lp;
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echo "$del_sql<br />\n";
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$del_sql = "DROP TABLE ".$dbname.$new_lp_view;
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echo "$del_sql<br />\n";
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$del_sql = "DROP TABLE ".$dbname.$new_lp_item;
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echo "$del_sql<br />\n";
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$del_sql = "DROP TABLE ".$dbname.$new_lp_item_view;
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echo "$del_sql<br />\n";
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$del_sql = "DROP TABLE ".$dbname.$new_lp_iv_interaction;
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echo "$del_sql<br />\n";
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echo "<br /><br />\n";
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}
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}
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echo "Tables created/deleted for all courses<br />\n";
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?>
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