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<?php
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/*
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* $Id: carbon_edit.inc,v 1.6 2009/04/29 21:07:28 johnackers Exp $
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*
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* Created on 19-Feb-2008
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*
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*
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* Provide the helper functions that support row editing in a
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* table with ajax transfers. Functions are listed in the order
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* that they would be invoked.
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*/
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/**
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* Wrap a standard table theme finction with a form wrapper.
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* Invoked when the whole table is created.
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*
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*
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* @param $header
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* @param $rows
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* @return unknown_type
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*/
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function theme_table_inside_form($header, $rows)
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{
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$path = carbon_include_core_js();
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$output = "<form class='ajaj'>" // must match class that is hard coded in carbon.js
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. theme("table", $header, $rows)
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. '</form>';
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return $output ;
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}
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/**
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* This function is called to replace a row of fixed data in a table with a
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* number of form fields that represent the editable fields of the node.
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*
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* Menu entry point.
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*
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* @param $node
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* @return unknown_type
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*/
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function carbon_ajax_edit($account, $tablename, $verb, $node)
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{
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global $nid_update ; $nid_update = 0 ; // set when node updated/added
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if ($verb == "delete")
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{
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node_delete($node->nid); // force new node to be created
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$fragment = "<tr class='deletion'><td colspan=10>Item deleted</td></tr>";
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$json = drupal_json($fragment);
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print($json);
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exit(0);
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}
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if ($verb == "clone")
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{
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$node->cid = $node->nid ;
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unset($node->nid); // force new node to be created
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}
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if ($verb == "add")
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{
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$node->cid = $node->nid ;
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$node->reading = $node->enddate = null ; // zero out key fields
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unset($node->nid); // force new node to be created
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}
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$output = drupal_get_form("carbon_editable_row_form", $node, $account, $tablename, "carbon_stamp_submit");
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// todo: presume that status messages might get stripped out which is not ideal!
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// need to get them back to the user.
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// if we have just completed an update, discard the forms and render a new
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// row for the table using the same routine that created the original table.
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if ($nid_update > 0)
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{
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$singleRow = ($verb == 'add') ? 'insertion' : 'replacement' ;
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$output = carbon_view_stamp_one($account, $tablename, $nid_update, $singleRow);
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}
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// we want to use standard drupal form creation but you cannot use/add the
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// form tag to an existing page (at least that's what i found).
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// So the original page should already be wrapped in form tags.
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// So before injecting the html fragment, we extract the html that is wrapped
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// by the outside <TD>..col.1..col.2..col.3..</TD> tags.
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$fragment = extract_string($output, "<tr", "</tr>");
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$json = drupal_json($fragment);
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print($json);
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exit(0);
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}
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/**
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* Cut out a fragment of a string
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*
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* @param $haystack the target string
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* @param $start start marker of desired string
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* @param $end end marker of desired string (reverse search)
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* @return string fragment including the start and end markers
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*/
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function extract_string($haystack, $start, $end)
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{
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$p1 = strpos($haystack, $start);
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if ($p1 !== false)
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{
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$p2 = strrpos($haystack, $end);
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if ($p2 !== false)
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{
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return substr($haystack, $p1, $p2 + strlen($end) - $p1);
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}
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}
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return t("<tr><td colspan=10>Error: Item not available, refresh page</td></tr>");
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}
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function carbon_editable_row_form($form_state, $node, $account, $tablename, $submit_hook)
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{
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$form = array();
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$form["aid"] = array("#type"=>"hidden", "#name"=>"aid", "#value" => $account->nid);
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$form["uid"] = array("#type"=>"hidden", "#name"=>"uid", "#value" => $account->uid);
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if ($node != null)
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{
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if (isset($node->nid))
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$form["nid"] = array("#type"=>"hidden", "#name"=>"nid", "#value" => $node->nid);
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if (isset($node->cid))
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$form["cid"] = array("#type"=>"hidden", "#name"=>"cid", "#value" => $node->cid);
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}
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_stamp_form($form, $node, CarbonSources::getDefault());
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// pass $header structure to $form so cols can be rendered in correct order
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$get_header = "_get_".$tablename."_header";
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$form['#header'] = $get_header(); // adding non standard field
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$form['save'] = array("#type" => "submit", "#value" => "save");
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// $form['cancel'] = array("#type" => "submit", "#value" => "cancel"); //todo, put in op box
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$form['#submit'] = array($submit_hook, 'carbon_ajax_submit');
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return $form ;
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}
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/**
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*
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* Invoked by drupal's form routines to render a set of fields that will
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* evenutually be inserted in a table. Drupal can render this form
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* without our help, however we want to create a set of minimal set of
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* fields without titles and descriptions and most importantly rendered
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* as a set of columns.
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*
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* @param $form form that should be rendered
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* @return html string
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*
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*/
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function theme_carbon_editable_row_form(&$form)
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{
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global $cols ; $cols = array();
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// first of all render the fields that are named
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// in the header
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foreach ($form['#header'] as $h)
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{
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$fieldname = isset($h['form']) ? $h['form'] : $h['field'] ;
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$field = &$form[$fieldname]; // $field is large array here
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if (!isset($field))
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$field = &$form['stamp'][$fieldname]; // $field is large array here
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if (is_array($field))
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{
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if ($field["#type"] == "hidden") // save hidden fields
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continue ;
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if ($field["#type"] == "submit") // save submit buttons
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continue;
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// prevent title and description being placed around field
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$fcopy = $field ; // this should create new copy
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unset($fcopy['#title']) ; unset($fcopy['#description']);
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$cols[] .= drupal_render($fcopy);
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}
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else
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$cols[] = t("not avail.");
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$field['#printed'] = true ; // mark as done
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}
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// put all the submit buttons in one column
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foreach($form as $key => $f)
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{
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if ($f["#type"] == "submit")
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$cols[sizeof($cols)-1] = drupal_render($f) . " " ;
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}
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// at this stage, we have handled all the fields required
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// for the table. But markup the other fields as hidden.
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_markFieldsAsHidden($form);
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// add the tokens, unique form identifier etc and render the rest of the form
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$other_fields = drupal_render($form); // the whole form has been rendered
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// shove the other fields in the last column,
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// we don't want to put an extra column into
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// the existing table
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if (sizeof($cols) == 0) $cols[0] = "" ;
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$cols[sizeof($cols)-1] .= $other_fields ;
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// render form in a table with one row
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// we'll extract the signle row later on.
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$class = "replacement" ;
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return theme_table(array(), array(array("data" => $cols, 'id'=> 0, 'class'=> $class)));
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}
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/**
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* We don't want to render all fields because there isn't room in each
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* row of the table so mark them as #hidden so they are not rendered
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* but the default values (like scope) are available for saving.
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*
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* @param $form
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* @return undefined
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*/
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function _markFieldsAsHidden(&$form)
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{
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foreach($form as $key => &$f)
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{
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if (!is_array($f))
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continue ; // never do anything with a single attribute
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if ($f["#printed"]) // skip rendered fields
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continue ;
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if ($f["#type"] == "hidden") // keep hidden fields
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continue ;
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if ($f["#type"] == "token") // keep token fields
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continue ;
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if ($f['#type'] == 'fieldset')
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{
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_markFieldsAsHidden($form[$key]);
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$f['#printed'] = true ;
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continue ;
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}
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$f['#type'] = 'hidden' ;
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}
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}
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function form_render($col)
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{
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if (is_array($col)) return $col[0];
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return $col ;
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}
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/**
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* create the links for different operations available on each line
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* on the table
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*
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* @param $account
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* @param $tablename
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* @param $node
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* @param $query
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* @return unknown_type
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*/
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function _format_link_insitu_edit($account, $tablename, $node, $query="")
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{
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return _fancy_link($node,"", "edit stamp",
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"carbon/".$account->nid."/".$tablename."/edit/".$node->nid, $query, "edit").
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_fancy_link($node,"","copy stamp, attach to this account and then edit",
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"carbon/".$account->nid."/".$tablename."/clone/".$node->nid, $query, "clone").
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_fancy_link($node,"","delete stamp",
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"carbon/".$account->nid."/".$tablename."/delete/".$node->nid, $query, "delete") ;
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}
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function _format_link_insitu_add($account, $tablename, $node)
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{
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$nid = isset($node) ? $node->nid : "" ;
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return _fancy_link($node,t("New"), "add a new stamp",
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"carbon/".$account->nid."/".$tablename."/add/".$nid, "", "new");
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}
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?>
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