Found it thanks to your hints...I had shot my own foot trying to clean up PHP errors about nulls when exhausted.
So for anyone else, here is my view_view_table that works:
function vhb_bootstrap_preprocess_views_view_table(&$variables) {
$view = $variables['view'];
// We need the raw data for this grouping, which is passed in as $variables['rows'].
// However, the template also needs to use for the rendered fields. We
// therefore swap the raw data out to a new variable and reset $variables['rows']
// so that it can get rebuilt.
// Store rows so that they may be used by further preprocess functions.
$result = $variables['result'] = $variables['rows'];
$variables['rows'] = array();
$variables['field_classes'] = array();
$variables['header'] = array();
$options = $view->style_plugin->options;
$handler = $view->style_plugin;
$default_row_class = isset($options['default_row_class']) ? $options['default_row_class'] : TRUE;
$row_class_special = isset($options['row_class_special']) ? $options['row_class_special'] : TRUE;
$fields = &$view->field;
$columns = $handler->sanitize_columns($options['columns'], $fields);
$active = !empty($handler->active) ? $handler->active : '';
$order = !empty($handler->order) ? $handler->order : 'asc';
$responsive_columns = array();
$query = tablesort_get_query_parameters();
if (isset($view->exposed_raw_input)) {
$query += $view->exposed_raw_input;
}
// Fields must be rendered in order as of Views 2.3, so we will pre-render
// everything.
$renders = $handler->render_fields($result);
foreach ($columns as $field => $column) {
// Create a second variable so we can find what fields we have and what the
// CSS classes should be.
$variables['fields'][$field] = backdrop_clean_css_identifier($field);
if ($active == $field) {
$variables['fields'][$field] .= ' active';
}
// render the header labels
if ($field == $column && empty($fields[$field]->options['exclude'])) {
$label = check_plain(!empty($fields[$field]) ? $fields[$field]->label() : '');
if (empty($options['info'][$field]['sortable']) || !$fields[$field]->click_sortable()) {
$variables['header'][$field] = $label;
}
else {
$initial = !empty($options['info'][$field]['default_sort_order']) ? $options['info'][$field]['default_sort_order'] : 'asc';
if ($active == $field) {
$initial = ($order == 'asc') ? 'desc' : 'asc';
}
$title = t('sort by @s', array('@s' => $label));
if ($active == $field) {
$label .= theme('tablesort_indicator', array('style' => $initial));
}
$query['order'] = $field;
$query['sort'] = $initial;
$link_options = array(
'html' => TRUE,
'attributes' => array('title' => $title),
'query' => $query,
);
$variables['header'][$field] = l($label, $_GET['q'], $link_options);
}
$variables['header_classes'][$field] = array();
// Set up the header label class.
if ($fields[$field]->options['element_default_classes']) {
$variables['header_classes'][$field][] = "views-field";
$variables['header_classes'][$field][] = "views-field-" . $variables['fields'][$field];
}
$class = $fields[$field]->element_label_classes(0);
if ($class) {
$variables['header_classes'][$field][] = $class;
}
// Add a CSS align class to each field if one was set
if (!empty($options['info'][$field]['align'])) {
$variables['header_classes'][$field][] = backdrop_clean_css_identifier($options['info'][$field]['align']);
}
// Add active class.
if ($active == $field) {
$variables['header_classes'][$field][] = 'active';
}
// Add a header label wrapper if one was selected.
if ($variables['header'][$field]) {
$element_label_type = $fields[$field]->element_label_type(TRUE, TRUE);
if ($element_label_type) {
$variables['header'][$field] = '<' . $element_label_type . '>' . $variables['header'][$field] . '</' . $element_label_type . '>';
}
}
// Track responsive classes for each column as needed. Only the header
// cells for a column are marked up with the responsive classes by a
// module developer or themer. The responsive classes on the header cells
// must be transferred to the content cells.
if (in_array(RESPONSIVE_PRIORITY_MEDIUM, $variables['header_classes'][$field])) {
$responsive_columns[$field] = RESPONSIVE_PRIORITY_MEDIUM;
}
elseif (in_array(RESPONSIVE_PRIORITY_LOW, $variables['header_classes'][$field])) {
$responsive_columns[$field] = RESPONSIVE_PRIORITY_LOW;
}
}
// Add a CSS align class to each field if one was set
if (!empty($options['info'][$field]['align'])) {
$variables['fields'][$field] .= ' ' . backdrop_clean_css_identifier($options['info'][$field]['align']);
}
// Render each field into its appropriate column.
foreach ($result as $num => $row) {
// Add field classes and attributes.
$variables['field_attributes'][$field][$num] = array();
$variables['field_classes'][$field][$num] = array();
if ($fields[$field]->options['element_default_classes']) {
$variables['field_classes'][$field][$num][] = "views-field";
$variables['field_classes'][$field][$num][] = "views-field-" . $variables['fields'][$field];
}
// Copy RESPONSIVE_PRIORITY_LOW/RESPONSIVE_PRIORITY_MEDIUM
// class from header to cell as needed.
if (isset($responsive_columns[$field])) {
$variables['field_classes'][$field][$num][] = $responsive_columns[$field];
}
if ($classes = $fields[$field]->element_classes($num)) {
$classes_array = explode(' ', $classes);
$variables['field_classes'][$field][$num] = array_merge($variables['field_classes'][$field][$num], $classes_array);
}
if (!empty($fields[$field]) && empty($fields[$field]->options['exclude'])) {
$field_output = $renders[$num][$field];
// at this stage $field_output = the value of that field.
//modify classes for specific values
// should be harmless, as it all it does is add extra classes
$element_type = $fields[$field]->element_type(TRUE, TRUE); // eg DIV
if(!is_null($field_output)){ $cssval= str_replace(' ', '-', strtolower($field_output)); }
$cssfield=str_replace('_', '-', strtolower($field));
if ($element_type) {
$field_output = '<' . $element_type .' class="'.$cssfield.'-'.$cssval.'">' . $field_output . '</' . $element_type . '>';
}
// Don't bother with separators and stuff if the field does not show up.
if (empty($field_output) && !empty($variables['rows'][$num][$column])) {
continue;
}
// Place the field into the column, along with an optional separator.
if (!empty($variables['rows'][$num][$column])) {
if (!empty($options['info'][$column]['separator'])) {
$variables['rows'][$num][$column] .= filter_xss_admin($options['info'][$column]['separator']);
}
}
else {
$variables['rows'][$num][$column] = '';
}
$variables['rows'][$num][$column] .= $field_output;
}
}
// Remove columns if the option is hide empty column is checked and the field is not empty.
if (!empty($options['info'][$field]['empty_column'])) {
$empty = TRUE;
foreach ($variables['rows'] as $num => $columns) {
$empty &= empty($columns[$column]);
}
if ($empty) {
foreach ($variables['rows'] as $num => &$column_items) {
unset($column_items[$column]);
unset($variables['header'][$column]);
}
}
}
}
// Hide table header if all labels are empty.
if (!array_filter($variables['header'])) {
$variables['header'] = array();
}
$count = 0;
foreach ($variables['rows'] as $num => $row) {
$variables['row_classes'][$num] = array();
if ($row_class_special) {
$variables['row_classes'][$num][] = ($count++ % 2 == 0) ? 'odd' : 'even';
}
if ($row_class = $handler->get_row_class($num)) {
$variables['row_classes'][$num][] = $row_class;
}
}
if ($row_class_special) {
$variables['row_classes'][0][] = 'first';
$variables['row_classes'][count($variables['row_classes']) - 1][] = 'last';
}
$variables['classes'] = array('views-table');
if (empty($variables['rows']) && !empty($options['empty_table'])) {
$variables['rows'][0][0] = $view->display_handler->render_area('empty');
// Calculate the amounts of rows with output.
$variables['field_attributes'][0][0]['colspan'] = count($variables['header']);
$variables['field_classes'][0][0] = array('views-empty');
}
if (!empty($options['sticky'])) {
backdrop_add_js('core/misc/tableheader.js');
$variables['classes'][] = 'sticky-enabled';
}
// If the responsive classes were used, add the matching library.
if (count($responsive_columns)) {
backdrop_add_library('system', 'backdrop.tableresponsive');
// Add 'responsive-enabled' class to the table to identify it for JS.
// This is needed to target tables constructed by this function.
$variables['classes'][] = 'responsive-enabled';
}
$variables['classes'][] = 'cols-' . count($variables['header']);
// Add the summary to the list if set.
if (!empty($handler->options['summary'])) {
$variables['attributes'] = array('summary' => filter_xss_admin($handler->options['summary']));
}
// Add the caption to the list if set.
if (!empty($handler->options['caption'])) {
$variables['caption'] = filter_xss_admin($handler->options['caption']);
}
else {
$variables['caption'] = '';
}
}
Found it thanks to your hints...I had shot my own foot trying to clean up PHP errors about nulls when exhausted.
So for anyone else, here is my view_view_table that works:
function vhb_bootstrap_preprocess_views_view_table(&$variables) {
$view = $variables['view'];
// We need the raw data for this grouping, which is passed in as $variables['rows'].
// However, the template also needs to use for the rendered fields. We
// therefore swap the raw data out to a new variable and reset $variables['rows']
// so that it can get rebuilt.
// Store rows so that they may be used by further preprocess functions.
$result = $variables['result'] = $variables['rows'];
$variables['rows'] = array();
$variables['field_classes'] = array();
$variables['header'] = array();
$options = $view->style_plugin->options;
$handler = $view->style_plugin;
$default_row_class = isset($options['default_row_class']) ? $options['default_row_class'] : TRUE;
$row_class_special = isset($options['row_class_special']) ? $options['row_class_special'] : TRUE;
$fields = &$view->field;
$columns = $handler->sanitize_columns($options['columns'], $fields);
$active = !empty($handler->active) ? $handler->active : '';
$order = !empty($handler->order) ? $handler->order : 'asc';
$responsive_columns = array();
$query = tablesort_get_query_parameters();
if (isset($view->exposed_raw_input)) {
$query += $view->exposed_raw_input;
}
// Fields must be rendered in order as of Views 2.3, so we will pre-render
// everything.
$renders = $handler->render_fields($result);
foreach ($columns as $field => $column) {
// Create a second variable so we can find what fields we have and what the
// CSS classes should be.
$variables['fields'][$field] = backdrop_clean_css_identifier($field);
if ($active == $field) {
$variables['fields'][$field] .= ' active';
}
// render the header labels
if ($field == $column && empty($fields[$field]->options['exclude'])) {
$label = check_plain(!empty($fields[$field]) ? $fields[$field]->label() : '');
if (empty($options['info'][$field]['sortable']) || !$fields[$field]->click_sortable()) {
$variables['header'][$field] = $label;
}
else {
$initial = !empty($options['info'][$field]['default_sort_order']) ? $options['info'][$field]['default_sort_order'] : 'asc';
if ($active == $field) {
$initial = ($order == 'asc') ? 'desc' : 'asc';
}
$title = t('sort by @s', array('@s' => $label));
if ($active == $field) {
$label .= theme('tablesort_indicator', array('style' => $initial));
}
$query['order'] = $field;
$query['sort'] = $initial;
$link_options = array(
'html' => TRUE,
'attributes' => array('title' => $title),
'query' => $query,
);
$variables['header'][$field] = l($label, $_GET['q'], $link_options);
}
$variables['header_classes'][$field] = array();
// Set up the header label class.
if ($fields[$field]->options['element_default_classes']) {
$variables['header_classes'][$field][] = "views-field";
$variables['header_classes'][$field][] = "views-field-" . $variables['fields'][$field];
}
$class = $fields[$field]->element_label_classes(0);
if ($class) {
$variables['header_classes'][$field][] = $class;
}
// Add a CSS align class to each field if one was set
if (!empty($options['info'][$field]['align'])) {
$variables['header_classes'][$field][] = backdrop_clean_css_identifier($options['info'][$field]['align']);
}
// Add active class.
if ($active == $field) {
$variables['header_classes'][$field][] = 'active';
}
// Add a header label wrapper if one was selected.
if ($variables['header'][$field]) {
$element_label_type = $fields[$field]->element_label_type(TRUE, TRUE);
if ($element_label_type) {
$variables['header'][$field] = '<' . $element_label_type . '>' . $variables['header'][$field] . '</' . $element_label_type . '>';
}
}
// Track responsive classes for each column as needed. Only the header
// cells for a column are marked up with the responsive classes by a
// module developer or themer. The responsive classes on the header cells
// must be transferred to the content cells.
if (in_array(RESPONSIVE_PRIORITY_MEDIUM, $variables['header_classes'][$field])) {
$responsive_columns[$field] = RESPONSIVE_PRIORITY_MEDIUM;
}
elseif (in_array(RESPONSIVE_PRIORITY_LOW, $variables['header_classes'][$field])) {
$responsive_columns[$field] = RESPONSIVE_PRIORITY_LOW;
}
}
// Add a CSS align class to each field if one was set
if (!empty($options['info'][$field]['align'])) {
$variables['fields'][$field] .= ' ' . backdrop_clean_css_identifier($options['info'][$field]['align']);
}
// Render each field into its appropriate column.
foreach ($result as $num => $row) {
// Add field classes and attributes.
$variables['field_attributes'][$field][$num] = array();
$variables['field_classes'][$field][$num] = array();
if ($fields[$field]->options['element_default_classes']) {
$variables['field_classes'][$field][$num][] = "views-field";
$variables['field_classes'][$field][$num][] = "views-field-" . $variables['fields'][$field];
}
// Copy RESPONSIVE_PRIORITY_LOW/RESPONSIVE_PRIORITY_MEDIUM
// class from header to cell as needed.
if (isset($responsive_columns[$field])) {
$variables['field_classes'][$field][$num][] = $responsive_columns[$field];
}
if ($classes = $fields[$field]->element_classes($num)) {
$classes_array = explode(' ', $classes);
$variables['field_classes'][$field][$num] = array_merge($variables['field_classes'][$field][$num], $classes_array);
}
if (!empty($fields[$field]) && empty($fields[$field]->options['exclude'])) {
$field_output = $renders[$num][$field];
// at this stage $field_output = the value of that field.
//modify classes for specific values
// should be harmless, as it all it does is add extra classes
$element_type = $fields[$field]->element_type(TRUE, TRUE); // eg DIV
if(!is_null($field_output)){ $cssval= str_replace(' ', '-', strtolower($field_output)); }
$cssfield=str_replace('_', '-', strtolower($field));
if ($element_type) {
$field_output = '<' . $element_type .' class="'.$cssfield.'-'.$cssval.'">' . $field_output . '</' . $element_type . '>';
}
// Don't bother with separators and stuff if the field does not show up.
if (empty($field_output) && !empty($variables['rows'][$num][$column])) {
continue;
}
// Place the field into the column, along with an optional separator.
if (!empty($variables['rows'][$num][$column])) {
if (!empty($options['info'][$column]['separator'])) {
$variables['rows'][$num][$column] .= filter_xss_admin($options['info'][$column]['separator']);
}
}
else {
$variables['rows'][$num][$column] = '';
}
$variables['rows'][$num][$column] .= $field_output;
}
}
// Remove columns if the option is hide empty column is checked and the field is not empty.
if (!empty($options['info'][$field]['empty_column'])) {
$empty = TRUE;
foreach ($variables['rows'] as $num => $columns) {
$empty &= empty($columns[$column]);
}
if ($empty) {
foreach ($variables['rows'] as $num => &$column_items) {
unset($column_items[$column]);
unset($variables['header'][$column]);
}
}
}
}
// Hide table header if all labels are empty.
if (!array_filter($variables['header'])) {
$variables['header'] = array();
}
$count = 0;
foreach ($variables['rows'] as $num => $row) {
$variables['row_classes'][$num] = array();
if ($row_class_special) {
$variables['row_classes'][$num][] = ($count++ % 2 == 0) ? 'odd' : 'even';
}
if ($row_class = $handler->get_row_class($num)) {
$variables['row_classes'][$num][] = $row_class;
}
}
if ($row_class_special) {
$variables['row_classes'][0][] = 'first';
$variables['row_classes'][count($variables['row_classes']) - 1][] = 'last';
}
$variables['classes'] = array('views-table');
if (empty($variables['rows']) && !empty($options['empty_table'])) {
$variables['rows'][0][0] = $view->display_handler->render_area('empty');
// Calculate the amounts of rows with output.
$variables['field_attributes'][0][0]['colspan'] = count($variables['header']);
$variables['field_classes'][0][0] = array('views-empty');
}
if (!empty($options['sticky'])) {
backdrop_add_js('core/misc/tableheader.js');
$variables['classes'][] = 'sticky-enabled';
}
// If the responsive classes were used, add the matching library.
if (count($responsive_columns)) {
backdrop_add_library('system', 'backdrop.tableresponsive');
// Add 'responsive-enabled' class to the table to identify it for JS.
// This is needed to target tables constructed by this function.
$variables['classes'][] = 'responsive-enabled';
}
$variables['classes'][] = 'cols-' . count($variables['header']);
// Add the summary to the list if set.
if (!empty($handler->options['summary'])) {
$variables['attributes'] = array('summary' => filter_xss_admin($handler->options['summary']));
}
// Add the caption to the list if set.
if (!empty($handler->options['caption'])) {
$variables['caption'] = filter_xss_admin($handler->options['caption']);
}
else {
$variables['caption'] = '';
}
}