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<?php |
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namespace Modules\Entitizer\Utils { |
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use Modules\Entitizer, DB; |
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abstract class Listview extends Collection { |
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# Get default select query |
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private function getDefaultSelectQuery(array $config, array $order_by, int $index, int $display) { |
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return ("SELECT SQL_CALC_FOUND_ROWS " . $this->getSelection() . " ") . |
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("FROM " . static::$table . " ent ") . |
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(('' !== ($condition = $this->getCondition($config))) ? ("WHERE " . $condition . " ") : "") . |
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("ORDER BY " . $this->getOrderBy($order_by) . " ") . |
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(($index > 0) ? ("LIMIT " . ((($index - 1) * $display) . ", " . $display)) : ""); |
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} |
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# Get nesting select query |
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private function getNestingSelectQuery(int $parent_id, array $config, array $order_by, int $index, int $display) { |
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return ("SELECT SQL_CALC_FOUND_ROWS " . $this->getSelection() . ", COUNT(chd.descendant) as children ") . |
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("FROM " . static::$table . " ent ") . |
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("LEFT JOIN " . static::$table_relations . " chd ON chd.ancestor = ent.id AND chd.depth = 1 ") . |
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("LEFT JOIN " . static::$table_relations . " rel ON rel.descendant = ent.id AND rel.depth = 1 ") . |
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("WHERE COALESCE(rel.ancestor, 0) = " . $parent_id . " ") . |
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(('' !== ($condition = $this->getCondition($config))) ? ("AND " . $condition . " ") : "") . |
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("GROUP BY ent.id ORDER BY " . $this->getOrderBy($order_by) . " ") . |
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(($index > 0) ? ("LIMIT " . ((($index - 1) * $display) . ", " . $display)) : ""); |
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} |
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# Get default count query |
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private function getDefaultCountQuery(array $config) { |
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return ("SELECT COUNT(ent.id) as count FROM " . static::$table . " ent ") . |
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(('' !== ($condition = $this->getCondition($config))) ? ("WHERE " . $condition) : ""); |
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} |
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# Get nesting count query |
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private function getNestingCountQuery(int $parent_id, array $config) { |
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return ("SELECT COUNT(ent.id) as count FROM " . static::$table . " ent ") . |
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("LEFT JOIN " . static::$table_relations . " rel ON rel.descendant = ent.id AND rel.depth = 1 ") . |
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("WHERE COALESCE(rel.ancestor, 0) = " . $parent_id . " ") . |
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(('' !== ($condition = $this->getCondition($config))) ? ("AND " . $condition) : ""); |
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} |
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# Select entries from DB |
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private function select(int $parent_id = null, array $config = [], array $order_by = [], int $index = 0, int $display = 0) { |
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if (!((null === $parent_id) || ($parent_id >= 0))) return false; |
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if (!(($index >= 0) && ($display >= 0))) return false; |
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# Select entities |
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$query = ((null === $parent_id) ? $this->getDefaultSelectQuery($config, $order_by, $index, $display) : |
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$this->getNestingSelectQuery($parent_id, $config, $order_by, $index, $display)); |
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if (!(DB::send($query) && DB::last()->status)) return false; |
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# Process results |
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$items = ['list' => [], 'total' => 0]; |
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while (null !== ($data = DB::last()->row())) { |
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$dataset = Entitizer::dataset(static::$table, $data); |
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$items['list'][$dataset->id]['dataset'] = $dataset; |
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if (null !== $parent_id) $items['list'][$dataset->id]['children'] = intval($data['children']); |
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} |
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# Count total |
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if (DB::send("SELECT FOUND_ROWS() as total") && (DB::last()->rows === 1)) { |
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$items['total'] = intval(DB::last()->row()['total']); |
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} |
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# ------------------------ |
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return $items; |
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} |
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# Count entries in DB |
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private function count(int $parent_id = null, array $config = []) { |
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if (!((null === $parent_id) || ($parent_id >= 0))) return false; |
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# Count entities |
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$query = ((null === $parent_id) ? $this->getDefaultCountQuery($config) : |
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$this->getNestingCountQuery($parent_id, $config)); |
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if (!(DB::send($query) && DB::last()->status)) return false; |
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# ------------------------ |
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return intval(DB::last()->row()['count']); |
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} |
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# Get items |
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public function items(array $config = [], array $order_by = [], int $index = 0, int $display = 0) { |
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return $this->select(null, $config, $order_by, $index, $display); |
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} |
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# Get items count |
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public function itemsCount(array $config = []) { |
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return $this->count(null, $config); |
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} |
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# Get children |
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public function children(int $parent_id = 0, array $config = [], array $order_by = [], int $index = 0, int $display = 0) { |
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if (!static::$nesting) return false; |
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return $this->select($parent_id, $config, $order_by, $index, $display); |
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} |
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# Get children count |
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public function childrenCount(int $parent_id = 0, array $config = []) { |
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if (!static::$nesting) return false; |
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return $this->count($parent_id, $config); |
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} |
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} |
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} |
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