/**
* Invoke method, every class will have its own
* returns true/false on completion, setting both
* errormsg and output as necessary
*/
function invoke()
{
parent::invoke();
$result = true;
/// Set own core attributes
$this->does_generate = ACTION_GENERATE_HTML;
/// These are always here
global $CFG, $XMLDB;
/// Do the job, setting result as needed
/// Get the dir containing the file
$dirpath = required_param('dir', PARAM_PATH);
$dirpath = $CFG->dirroot . $dirpath;
/// Get the correct dirs
if (!empty($XMLDB->dbdirs)) {
$dbdir =& $XMLDB->dbdirs[$dirpath];
} else {
return false;
}
if (!empty($XMLDB->editeddirs)) {
$editeddir =& $XMLDB->editeddirs[$dirpath];
$structure =& $editeddir->xml_file->getStructure();
}
/// ADD YOUR CODE HERE
$statementparam = optional_param('statement', NULL, PARAM_CLEAN);
/// If no statement, then we are coming for a new one. Look for
/// type and table and build the correct statementparam
if (!$statementparam) {
$typeparam = optional_param('type', NULL, PARAM_CLEAN);
$tableparam = optional_param('table', NULL, PARAM_CLEAN);
$typename = xmldb_statement::getXMLDBStatementName($typeparam);
$statementparam = trim(strtolower($typename . ' ' . $tableparam));
}
if (!($statement =& $structure->getStatement($statementparam))) {
/// Arriving here from a name change, looking for the new statement name
$statementname = required_param('name', PARAM_CLEAN);
$statement =& $structure->getStatement($statementparam);
}
$dbdir =& $XMLDB->dbdirs[$dirpath];
$origstructure =& $dbdir->xml_file->getStructure();
/// Add the main form
$o = '<form id="form" action="index.php" method="post">';
$o .= '<div>';
$o .= ' <input type="hidden" name ="dir" value="' . str_replace($CFG->dirroot, '', $dirpath) . '" />';
$o .= ' <input type="hidden" name ="statement" value="' . $statementparam . '" />';
$o .= ' <input type="hidden" name ="action" value="edit_statement_save" />';
$o .= ' <input type="hidden" name ="postaction" value="edit_statement" />';
$o .= ' <table id="formelements" class="boxaligncenter">';
$o .= ' <tr valign="top"><td>Name:</td><td><input type="hidden" name ="name" value="' . s($statement->getName()) . '" />' . s($statement->getName()) . '</td></tr>';
$o .= ' <tr valign="top"><td><label for="comment" accesskey="c">Comment:</label></td><td><textarea name="comment" rows="3" cols="80" id="comment">' . s($statement->getComment()) . '</textarea></td></tr>';
$o .= ' <tr valign="top"><td> </td><td><input type="submit" value="' . $this->str['change'] . '" /></td></tr>';
$o .= ' </table>';
$o .= '</div></form>';
/// Calculate the buttons
$b = ' <p class="centerpara buttons">';
/// The view original XML button
if ($origstructure->getStatement($statementparam)) {
$b .= ' <a href="index.php?action=view_statement_xml&dir=' . urlencode(str_replace($CFG->dirroot, '', $dirpath)) . '&select=original&statement=' . $statementparam . '">[' . $this->str['vieworiginal'] . ']</a>';
} else {
$b .= ' [' . $this->str['vieworiginal'] . ']';
}
/// The view edited XML button
if ($statement->hasChanged()) {
$b .= ' <a href="index.php?action=view_statement_xml&dir=' . urlencode(str_replace($CFG->dirroot, '', $dirpath)) . '&select=edited&statement=' . $statementparam . '">[' . $this->str['viewedited'] . ']</a>';
} else {
$b .= ' [' . $this->str['viewedited'] . ']';
}
/// The new sentence button
$b .= ' <a href="index.php?action=new_sentence&postaction=edit_sentence&statement=' . $statementparam . '&dir=' . urlencode(str_replace($CFG->dirroot, '', $dirpath)) . '">[' . $this->str['newsentence'] . ']</a>';
/// The back to edit xml file button
$b .= ' <a href="index.php?action=edit_xml_file&dir=' . urlencode(str_replace($CFG->dirroot, '', $dirpath)) . '">[' . $this->str['back'] . ']</a>';
$b .= '</p>';
$o .= $b;
/// Delete any 'changeme' sentence
///$statement->deleteSentence('changeme');
/// Add the fields list
$sentences =& $statement->getSentences();
if (!empty($sentences)) {
$o .= '<h3 class="main">' . $this->str['sentences'] . '</h3>';
$o .= '<table id="listfields" border="0" cellpadding="5" cellspacing="1" class="boxaligncenter flexible">';
$row = 0;
foreach ($sentences as $key => $sentence) {
/// Prepend some SQL
if ($statement->getType() == XMLDB_STATEMENT_INSERT) {
$p = 'INSERT INTO ' . $statement->getTable() . ' ';
} else {
$p = 'UNSUPPORTED SENTENCE TYPE ';
}
/// Calculate buttons
$b = '</td><td class="button cell">';
/// The edit button
$b .= '<a href="index.php?action=edit_sentence&sentence=' . $key . '&statement=' . urlencode($statement->getName()) . '&dir=' . urlencode(str_replace($CFG->dirroot, '', $dirpath)) . '">[' . $this->str['edit'] . ']</a>';
$b .= '</td><td class="button cell">';
/// The duplicate button
$b .= '<a href="index.php?action=new_sentence&postaction=edit_sentence&basesentence=' . $key . '&statement=' . urlencode($statement->getName()) . '&dir=' . urlencode(str_replace($CFG->dirroot, '', $dirpath)) . '">[' . $this->str['duplicate'] . ']</a>';
$b .= '</td><td class="button cell">';
/// The delete button
$b .= '<a href="index.php?action=delete_sentence&sentence=' . $key . '&statement=' . urlencode($statement->getName()) . '&dir=' . urlencode(str_replace($CFG->dirroot, '', $dirpath)) . '">[' . $this->str['delete'] . ']</a>';
$b .= '</td>';
/// Print table row
$o .= '<tr class="r' . $row . '"><td class="table cell">' . $p . $sentence . $b . '</tr>';
$row = ($row + 1) % 2;
}
$o .= '</table>';
}
$this->output = $o;
/// Launch postaction if exists (leave this here!)
if ($this->getPostAction() && $result) {
return $this->launch($this->getPostAction());
}
/// Return ok if arrived here
return $result;
}
/**
* Load data from XML to the structure
*/
function arr2xmldb_structure($xmlarr)
{
global $CFG;
$result = true;
/// Debug the structure
/// traverse_xmlize($xmlarr); //Debug
/// print_object ($GLOBALS['traverse_array']); //Debug
/// $GLOBALS['traverse_array']=""; //Debug
/// Process structure attributes (path, comment and version)
if (isset($xmlarr['XMLDB']['@']['PATH'])) {
$this->path = trim($xmlarr['XMLDB']['@']['PATH']);
} else {
$this->errormsg = 'Missing PATH attribute';
$this->debug($this->errormsg);
$result = false;
}
if (isset($xmlarr['XMLDB']['@']['VERSION'])) {
$this->version = trim($xmlarr['XMLDB']['@']['VERSION']);
} else {
$this->errormsg = 'Missing VERSION attribute';
$this->debug($this->errormsg);
$result = false;
}
if (isset($xmlarr['XMLDB']['@']['COMMENT'])) {
$this->comment = trim($xmlarr['XMLDB']['@']['COMMENT']);
} else {
if (!empty($CFG->xmldbdisablecommentchecking)) {
$this->comment = '';
} else {
$this->errormsg = 'Missing COMMENT attribute';
$this->debug($this->errormsg);
$result = false;
}
}
/// Iterate over tables
if (isset($xmlarr['XMLDB']['#']['TABLES']['0']['#']['TABLE'])) {
foreach ($xmlarr['XMLDB']['#']['TABLES']['0']['#']['TABLE'] as $xmltable) {
if (!$result) {
//Skip on error
continue;
}
$name = trim($xmltable['@']['NAME']);
$table = new xmldb_table($name);
$table->arr2xmldb_table($xmltable);
$this->tables[] = $table;
if (!$table->isLoaded()) {
$this->errormsg = 'Problem loading table ' . $name;
$this->debug($this->errormsg);
$result = false;
}
}
} else {
$this->errormsg = 'Missing TABLES section';
$this->debug($this->errormsg);
$result = false;
}
/// Perform some general checks over tables
if ($result && $this->tables) {
/// Check tables names are ok (lowercase, a-z _-)
if (!$this->checkNameValues($this->tables)) {
$this->errormsg = 'Some TABLES name values are incorrect';
$this->debug($this->errormsg);
$result = false;
}
/// Check previous & next are ok (duplicates and existing tables)
$this->fixPrevNext($this->tables);
if ($result && !$this->checkPreviousNextValues($this->tables)) {
$this->errormsg = 'Some TABLES previous/next values are incorrect';
$this->debug($this->errormsg);
$result = false;
}
/// Order tables
if ($result && !$this->orderTables($this->tables)) {
$this->errormsg = 'Error ordering the tables';
$this->debug($this->errormsg);
$result = false;
}
}
/// Iterate over statements
if (isset($xmlarr['XMLDB']['#']['STATEMENTS']['0']['#']['STATEMENT'])) {
foreach ($xmlarr['XMLDB']['#']['STATEMENTS']['0']['#']['STATEMENT'] as $xmlstatement) {
if (!$result) {
//Skip on error
continue;
}
$name = trim($xmlstatement['@']['NAME']);
$statement = new xmldb_statement($name);
$statement->arr2xmldb_statement($xmlstatement);
$this->statements[] = $statement;
if (!$statement->isLoaded()) {
$this->errormsg = 'Problem loading statement ' . $name;
$this->debug($this->errormsg);
$result = false;
}
}
}
/// Perform some general checks over statements
if ($result && $this->statements) {
/// Check statements names are ok (lowercase, a-z _-)
if (!$this->checkNameValues($this->statements)) {
$this->errormsg = 'Some STATEMENTS name values are incorrect';
$this->debug($this->errormsg);
$result = false;
}
/// Check previous & next are ok (duplicates and existing statements)
$this->fixPrevNext($this->statements);
if ($result && !$this->checkPreviousNextValues($this->statements)) {
$this->errormsg = 'Some STATEMENTS previous/next values are incorrect';
$this->debug($this->errormsg);
$result = false;
}
/// Order statements
if ($result && !$this->orderStatements($this->statements)) {
$this->errormsg = 'Error ordering the statements';
$this->debug($this->errormsg);
$result = false;
}
}
/// Set some attributes
if ($result) {
$this->loaded = true;
}
$this->calculateHash();
return $result;
}
function __construct($name)
{
parent::__construct($name);
}
/**
* Invoke method, every class will have its own
* returns true/false on completion, setting both
* errormsg and output as necessary
*/
function invoke()
{
parent::invoke();
$result = true;
/// Set own core attributes
$this->does_generate = ACTION_GENERATE_HTML;
/// These are always here
global $CFG, $XMLDB, $DB, $OUTPUT;
/// Do the job, setting result as needed
/// Get the dir containing the file
$dirpath = required_param('dir', PARAM_PATH);
$dirpath = $CFG->dirroot . $dirpath;
/// Get the correct dirs
if (!empty($XMLDB->dbdirs)) {
$dbdir =& $XMLDB->dbdirs[$dirpath];
} else {
return false;
}
if (!empty($XMLDB->editeddirs)) {
$editeddir =& $XMLDB->editeddirs[$dirpath];
$structure =& $editeddir->xml_file->getStructure();
}
/// ADD YOUR CODE HERE
$tableparam = optional_param('table', NULL, PARAM_CLEAN);
$typeparam = optional_param('type', NULL, PARAM_CLEAN);
/// If no table or type, show form
if (!$tableparam || !$typeparam) {
/// No postaction here
$this->postaction = NULL;
/// Get list of tables
$selecttables = $DB->get_tables();
/// Get list of statement types
$typeoptions = array(XMLDB_STATEMENT_INSERT => xmldb_statement::getXMLDBStatementName(XMLDB_STATEMENT_INSERT), XMLDB_STATEMENT_UPDATE => xmldb_statement::getXMLDBStatementName(XMLDB_STATEMENT_UPDATE), XMLDB_STATEMENT_DELETE => xmldb_statement::getXMLDBStatementName(XMLDB_STATEMENT_DELETE), XMLDB_STATEMENT_CUSTOM => xmldb_statement::getXMLDBStatementName(XMLDB_STATEMENT_CUSTOM));
if (!$selecttables) {
$this->errormsg = 'No tables available to create statements';
return false;
}
/// Now build the form
$o = '<form id="form" action="index.php" method="post">';
$o .= '<div>';
$o .= ' <input type="hidden" name ="dir" value="' . str_replace($CFG->dirroot, '', $dirpath) . '" />';
$o .= ' <input type="hidden" name ="action" value="new_statement" />';
$o .= ' <input type="hidden" name ="postaction" value="edit_statement" />';
$o .= ' <table id="formelements" class="boxaligncenter" cellpadding="5">';
$o .= ' <tr><td><label for="type" accesskey="t">' . $this->str['statementtype'] . ' </label>' . $OUTPUT->select(html_select::make($typeoptions, 'type')) . '<label for="table" accesskey="a">' . $this->str['statementtable'] . ' </label>' . $OUTPUT->select(html_select::make($selecttables, 'table')) . '</td></tr>';
$o .= ' <tr><td colspan="2" align="center"><input type="submit" value="' . $this->str['create'] . '" /></td></tr>';
$o .= ' <tr><td colspan="2" align="center"><a href="index.php?action=edit_xml_file&dir=' . urlencode(str_replace($CFG->dirroot, '', $dirpath)) . '">[' . $this->str['back'] . ']</a></td></tr>';
$o .= ' </table>';
$o .= '</div></form>';
$this->output = $o;
/// If table, retrofit information and, if everything works,
/// go to the table edit action
} else {
/// Get some params (table is mandatory here)
$tableparam = required_param('table', PARAM_CLEAN);
$typeparam = required_param('type', PARAM_CLEAN);
/// Only insert is allowed :-/
if ($typeparam != XMLDB_STATEMENT_INSERT) {
$this->errormsg = 'Only insert of records is supported';
return false;
}
/// Calculate the name of the statement
$typename = xmldb_statement::getXMLDBStatementName($typeparam);
$name = trim(strtolower($typename . ' ' . $tableparam));
/// Check that this Statement hasn't been created before
if ($structure->getStatement($name)) {
$this->errormsg = 'The statement "' . $name . '" already exists, please use it to add more sentences';
return false;
}
/// Create one new xmldb_statement
$statement = new xmldb_statement($name);
$statement->setType($typeparam);
$statement->setTable($tableparam);
$statement->setComment('Initial ' . $typename . ' of records on table ' . $tableparam);
/// Finally, add the whole retroffited table to the structure
/// in the place specified
$structure->addStatement($statement);
}
/// Launch postaction if exists (leave this here!)
if ($this->getPostAction() && $result) {
return $this->launch($this->getPostAction());
}
/// Return ok if arrived here
return $result;
}
