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<?php
if( class_exists( 'Tribe__Events__Filterbar__Filter' ) ) {
class Tribe__Events__Filterbar__Filters__Series extends Tribe__Events__Filterbar__Filter {
public $type = 'select';
public function get_admin_form() {
$title = $this->get_title_field();
$type = $this->get_multichoice_type_field();
return $title . $type;
}
protected function get_values() {
$terms = array();
// Load all available event categories
$source = get_terms( 'series', array( 'orderby' => 'name', 'order' => 'ASC' ) );
if ( empty( $source ) || is_wp_error( $source ) ) {
return array();
}
// Preprocess the terms
foreach ( $source as $term ) {
$terms[ (int) $term->term_id ] = $term;
$term->parent = (int) $term->parent;
$term->depth = 0;
$term->children = array();
}
// Initally copy the source list of terms to our ordered list
$ordered_terms = $terms;
// Re-order!
foreach ( $terms as $id => $term ) {
// Skip root elements
if ( 0 === $term->parent ) {
continue;
}
// Reposition child terms within the ordered terms list
unset( $ordered_terms[ $id ] );
$term->depth = $this->get_depth( $term );
$terms[ $term->parent ]->children[ $id ] = $term;
}
// Finally flatten out and return
return $this->flattened_term_list( $ordered_terms );
}
/**
* Get Term Depth
*
* @since 4.5
*
* @param $term
* @param int $level
*
* @return int
*/
protected function get_depth( $term, $level = 0 ) {
if ( 0 == $term->parent ) {
return $level;
} else {
$level++;
$term = get_category( $term->parent );
return $this->get_depth( $term, $level );
}
}
/**
* Flatten out the hierarchical list of event categories into a single list of values,
* applying formatting (non-breaking spaces) to help indicate the depth of each nested
* item.
*
* @param array $term_items
* @param array $existing_list
*
* @return array
*/
protected function flattened_term_list( array $term_items, array $existing_list = null ) {
// Pull in the existing list when called recursively
$flat_list = is_array( $existing_list ) ? $existing_list : array();
// Add each item - including nested items - to the flattened list
foreach ( $term_items as $term ) {
$has_child = ! empty( $term->children ) ? ' has-child closed' : '';
$parent_child_cat = '';
if ( ! $term->parent && $has_child ) {
$parent_child_cat = ' parent-' . absint( $term->term_id );
} elseif ( $term->parent && $has_child ) {
$parent_child_cat = ' parent-' . absint( $term->term_id ) . ' child-' . absint( $term->parent );
} elseif ( $term->parent && ! $has_child ) {
$parent_child_cat = ' child-' . absint( $term->parent );
}
$flat_list[] = array(
'name' => $term->name,
'depth' => $term->depth,
'value' => $term->term_id,
'data' => array( 'slug' => $term->slug ),
'class' =>
esc_html( $this->set_category_class( $term->depth ) ) .
'tribe-events-category-' . $term->slug .
$parent_child_cat .
$has_child,
);
if ( ! empty( $term->children ) ) {
$child_items = $this->flattened_term_list( $term->children, $existing_list );
$flat_list = array_merge( $flat_list, $child_items );
}
}
return $flat_list;
}
/**
* Return class based on dept of the event category
*
* @param $depth
*
* @return bool|string
*/
protected function set_category_class( $depth ) {
$class = 'tribe-parent-cat ';
if ( 1 == $depth ) {
$class = 'tribe-child-cat ';
} elseif ( 1 <= $depth ) {
$class = 'tribe-grandchild-cat tribe-depth-' . $depth . ' ';
}
/**
* Filter the event category class based on the term depth for the Filter Bar
*
* @param string $class class as a string
* @param int $depth numeric value of the depth, parent is 0
*/
$class = apply_filters( 'tribe_events_filter_event_category_display_class', $class, $depth );
return $class;
}
/**
* This method will only be called when the user has applied the filter (during the
* tribe_events_pre_get_posts action) and sets up the taxonomy query, respecting any
* other taxonomy queries that might already have been setup (whether by The Events
* Calendar, another plugin or some custom code, etc).
*
* @see Tribe__Events__Filterbar__Filter::pre_get_posts()
*
* @param WP_Query $query
*/
protected function pre_get_posts( WP_Query $query ) {
$new_rules = array();
$existing_rules = (array) $query->get( 'tax_query' );
$values = (array) $this->currentValue;
// if select display and event category has children get all those ids for query
if ( 'select' === $this->type ) {
$categories = get_categories( array(
'taxonomy' => 'series',
'child_of' => current( $values ),
) );
if ( ! empty( $categories ) ) {
foreach ( $categories as $category ) {
$values[] = $category->term_id;
}
}
} elseif ( 'multiselect' === $this->type ) {
$values = ! empty( $values[0] ) ? explode( ',', $values[0] ) : $values;
}
$new_rules[] = array(
'taxonomy' => 'series',
'operator' => 'IN',
'terms' => $values,
);
/**
* Controls the relationship between different taxonomy queries.
*
* If set to an empty value, then no attempt will be made by the additional field filter
* to set the meta_query "relation" parameter.
*
* @var string $relation "AND"|"OR"
*/
$relationship = apply_filters( 'tribe_events_filter_taxonomy_relationship', 'AND' );
/**
* If taxonomy filter meta queries should be nested and grouped together.
*
* The default is true in WordPress 4.1 and greater, which allows for greater flexibility
* when combined with taxonomy queries added by other filters/other plugins.
*
* @var bool $group
*/
$nest = apply_filters( 'tribe_events_filter_nest_taxonomy_queries', version_compare( $GLOBALS['wp_version'], '4.1', '>=' ) );
if ( $nest ) {
$new_rules = array(
__CLASS__ => $new_rules,
);
}
$tax_query = array_merge_recursive( $existing_rules, $new_rules );
// Apply the relationship (we leave this late, or the recursive array merge would potentially cause duplicates)
if ( ! empty( $relationship ) && $nest ) {
$tax_query[ __CLASS__ ]['relation'] = $relationship;
} elseif ( ! empty( $relationship ) ) {
$tax_query['relation'] = $relationship;
}
// Apply our new meta query rules
$query->set( 'tax_query', $tax_query );
}
}
new Tribe__Events__Filterbar__Filters__Series( 'Series', 'series_filter' );
class Tribe__Events__Filterbar__Filters__Genre extends Tribe__Events__Filterbar__Filter {
public $type = 'select';
public function get_admin_form() {
$title = $this->get_title_field();
$type = $this->get_multichoice_type_field();
return $title . $type;
}
protected function get_values() {
$terms = array();
// Load all available event categories
$source = get_terms( 'genre', array( 'orderby' => 'name', 'order' => 'ASC' ) );
if ( empty( $source ) || is_wp_error( $source ) ) {
return array();
}
// Preprocess the terms
foreach ( $source as $term ) {
$terms[ (int) $term->term_id ] = $term;
$term->parent = (int) $term->parent;
$term->depth = 0;
$term->children = array();
}
// Initally copy the source list of terms to our ordered list
$ordered_terms = $terms;
// Re-order!
foreach ( $terms as $id => $term ) {
// Skip root elements
if ( 0 === $term->parent ) {
continue;
}
// Reposition child terms within the ordered terms list
unset( $ordered_terms[ $id ] );
$term->depth = $this->get_depth( $term );
$terms[ $term->parent ]->children[ $id ] = $term;
}
// Finally flatten out and return
return $this->flattened_term_list( $ordered_terms );
}
/**
* Get Term Depth
*
* @since 4.5
*
* @param $term
* @param int $level
*
* @return int
*/
protected function get_depth( $term, $level = 0 ) {
if ( 0 == $term->parent ) {
return $level;
} else {
$level++;
$term = get_category( $term->parent );
return $this->get_depth( $term, $level );
}
}
/**
* Flatten out the hierarchical list of event categories into a single list of values,
* applying formatting (non-breaking spaces) to help indicate the depth of each nested
* item.
*
* @param array $term_items
* @param array $existing_list
*
* @return array
*/
protected function flattened_term_list( array $term_items, array $existing_list = null ) {
// Pull in the existing list when called recursively
$flat_list = is_array( $existing_list ) ? $existing_list : array();
// Add each item - including nested items - to the flattened list
foreach ( $term_items as $term ) {
$has_child = ! empty( $term->children ) ? ' has-child closed' : '';
$parent_child_cat = '';
if ( ! $term->parent && $has_child ) {
$parent_child_cat = ' parent-' . absint( $term->term_id );
} elseif ( $term->parent && $has_child ) {
$parent_child_cat = ' parent-' . absint( $term->term_id ) . ' child-' . absint( $term->parent );
} elseif ( $term->parent && ! $has_child ) {
$parent_child_cat = ' child-' . absint( $term->parent );
}
$flat_list[] = array(
'name' => $term->name,
'depth' => $term->depth,
'value' => $term->term_id,
'data' => array( 'slug' => $term->slug ),
'class' =>
esc_html( $this->set_category_class( $term->depth ) ) .
'tribe-events-category-' . $term->slug .
$parent_child_cat .
$has_child,
);
if ( ! empty( $term->children ) ) {
$child_items = $this->flattened_term_list( $term->children, $existing_list );
$flat_list = array_merge( $flat_list, $child_items );
}
}
return $flat_list;
}
/**
* Return class based on dept of the event category
*
* @param $depth
*
* @return bool|string
*/
protected function set_category_class( $depth ) {
$class = 'tribe-parent-cat ';
if ( 1 == $depth ) {
$class = 'tribe-child-cat ';
} elseif ( 1 <= $depth ) {
$class = 'tribe-grandchild-cat tribe-depth-' . $depth . ' ';
}
/**
* Filter the event category class based on the term depth for the Filter Bar
*
* @param string $class class as a string
* @param int $depth numeric value of the depth, parent is 0
*/
$class = apply_filters( 'tribe_events_filter_event_category_display_class', $class, $depth );
return $class;
}
/**
* This method will only be called when the user has applied the filter (during the
* tribe_events_pre_get_posts action) and sets up the taxonomy query, respecting any
* other taxonomy queries that might already have been setup (whether by The Events
* Calendar, another plugin or some custom code, etc).
*
* @see Tribe__Events__Filterbar__Filter::pre_get_posts()
*
* @param WP_Query $query
*/
protected function pre_get_posts( WP_Query $query ) {
$new_rules = array();
$existing_rules = (array) $query->get( 'tax_query' );
$values = (array) $this->currentValue;
// if select display and event category has children get all those ids for query
if ( 'select' === $this->type ) {
$categories = get_categories( array(
'taxonomy' => 'genre',
'child_of' => current( $values ),
) );
if ( ! empty( $categories ) ) {
foreach ( $categories as $category ) {
$values[] = $category->term_id;
}
}
} elseif ( 'multiselect' === $this->type ) {
$values = ! empty( $values[0] ) ? explode( ',', $values[0] ) : $values;
}
$new_rules[] = array(
'taxonomy' => 'genre',
'operator' => 'IN',
'terms' => $values,
);
/**
* Controls the relationship between different taxonomy queries.
*
* If set to an empty value, then no attempt will be made by the additional field filter
* to set the meta_query "relation" parameter.
*
* @var string $relation "AND"|"OR"
*/
$relationship = apply_filters( 'tribe_events_filter_taxonomy_relationship', 'AND' );
/**
* If taxonomy filter meta queries should be nested and grouped together.
*
* The default is true in WordPress 4.1 and greater, which allows for greater flexibility
* when combined with taxonomy queries added by other filters/other plugins.
*
* @var bool $group
*/
$nest = apply_filters( 'tribe_events_filter_nest_taxonomy_queries', version_compare( $GLOBALS['wp_version'], '4.1', '>=' ) );
if ( $nest ) {
$new_rules = array(
__CLASS__ => $new_rules,
);
}
$tax_query = array_merge_recursive( $existing_rules, $new_rules );
// Apply the relationship (we leave this late, or the recursive array merge would potentially cause duplicates)
if ( ! empty( $relationship ) && $nest ) {
$tax_query[ __CLASS__ ]['relation'] = $relationship;
} elseif ( ! empty( $relationship ) ) {
$tax_query['relation'] = $relationship;
}
// Apply our new meta query rules
$query->set( 'tax_query', $tax_query );
}
}
new Tribe__Events__Filterbar__Filters__Genre( 'Genre', 'genre_filter' );
}
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