基于每周数据的图表

Question

同事们的程序员，晚安。我很难用PHP，MySQL和Highcharts库整理每周记录图表。

我有连接和断开连接的记录，其中以 2017-03-30 16:43:04 的格式保存，但在图表的行中我需要显示此信息为期7天。

例如今天一周的开头：横坐标轴将包含7个值 03 / 04,04 / 04,04 / 04,06 / 04,07 / 04,08 / 04和09/04 并且纵坐标的轴将具有表示一定量连接或断开的整数值。

我不知道如何在后端生成这些数据，尤其是SQL查询。

表格列：

id | username | event | date

id 是事件 ID，用户名是用户名，事件可以采用连接或断开连接值，日期是 2017-03-30 16:43:04 格式的日期。

图表示例：

我做的丑陋的方式：

获取6天前+今天的DD / MM格式：

$date['timestamp'] = array( '0' => $this->db->select("DATE_ADD(CURDATE(), INTERVAL - 6 - WEEKDAY(CURDATE()) DAY) AS dateX")->get()->row()->dateX, '1' => $this->db->select("DATE_ADD(CURDATE(), INTERVAL - 5 - WEEKDAY(CURDATE()) DAY) AS dateX")->get()->row()->dateX, '2' => $this->db->select("DATE_ADD(CURDATE(), INTERVAL - 4 - WEEKDAY(CURDATE()) DAY) AS dateX")->get()->row()->dateX, '3' => $this->db->select("DATE_ADD(CURDATE(), INTERVAL - 3 - WEEKDAY(CURDATE()) DAY) AS dateX")->get()->row()->dateX, '4' => $this->db->select("DATE_ADD(CURDATE(), INTERVAL - 2 - WEEKDAY(CURDATE()) DAY) AS dateX")->get()->row()->dateX, '5' => $this->db->select("DATE_ADD(CURDATE(), INTERVAL - 1 - WEEKDAY(CURDATE()) DAY) AS dateX")->get()->row()->dateX, '6' => $this->db->select("DATE_ADD(CURDATE(), INTERVAL + 0 - WEEKDAY(CURDATE()) DAY) AS dateX")->get()->row()->dateX );

根据上述日期获取连接和断开连接：

$date['series'] = array( 'con' => array( '0' => $this->db->select('COUNT(id_ConnectionLog) AS dateX')->from('connection_log')->where('cl_Event', 'conexão')->where('cl_Client', $client_name)->where('date(cl_Date) = CURDATE() - INTERVAL 6 DAY')->get()->row()->dateX,
'1' => $this->db->select('COUNT(id_ConnectionLog) AS dateX')->from('connection_log')->where('cl_Event', 'conexão')->where('cl_Client', $client_name)->where('date(cl_Date) = CURDATE() - INTERVAL 5 DAY')->get()->row()->dateX, '2' => $this->db->select('COUNT(id_ConnectionLog) AS dateX')->from('connection_log')->where('cl_Event', 'conexão')->where('cl_Client', $client_name)->where('date(cl_Date) = CURDATE() - INTERVAL 4 DAY')->get()->row()->dateX, '3' => $this->db->select('COUNT(id_ConnectionLog) AS dateX')->from('connection_log')->where('cl_Event', 'conexão')->where('cl_Client', $client_name)->where('date(cl_Date) = CURDATE() - INTERVAL 3 DAY')->get()->row()->dateX, '4' => $this->db->select('COUNT(id_ConnectionLog) AS dateX')->from('connection_log')->where('cl_Event', 'conexão')->where('cl_Client', $client_name)->where('date(cl_Date) = CURDATE() - INTERVAL 2 DAY')->get()->row()->dateX, '5' => $this->db->select('COUNT(id_ConnectionLog) AS dateX')->from('connection_log')->where('cl_Event', 'conexão')->where('cl_Client', $client_name)->where('date(cl_Date) = CURDATE() - INTERVAL 1 DAY')->get()->row()->dateX, '6' => $this->db->select('COUNT(id_ConnectionLog) AS dateX')->from('connection_log')->where('cl_Event', 'conexão')->where('cl_Client', $client_name)->where('date(cl_Date) = CURDATE() - INTERVAL 0 DAY')->get()->row()->dateX
), 'dis' => array( '0' => $this->db->select('COUNT(id_ConnectionLog) AS dateX')->from('connection_log')->where('cl_Event', 'desconexão')->where('cl_Client', $client_name)->where('date(cl_Date) = CURDATE() - INTERVAL 6 DAY')->get()->row()->dateX,
'1' => $this->db->select('COUNT(id_ConnectionLog) AS dateX')->from('connection_log')->where('cl_Event', 'desconexão')->where('cl_Client', $client_name)->where('date(cl_Date) = CURDATE() - INTERVAL 5 DAY')->get()->row()->dateX, '2' => $this->db->select('COUNT(id_ConnectionLog) AS dateX')->from('connection_log')->where('cl_Event', 'desconexão')->where('cl_Client', $client_name)->where('date(cl_Date) = CURDATE() - INTERVAL 4 DAY')->get()->row()->dateX, '3' => $this->db->select('COUNT(id_ConnectionLog) AS dateX')->from('connection_log')->where('cl_Event', 'desconexão')->where('cl_Client', $client_name)->where('date(cl_Date) = CURDATE() - INTERVAL 3 DAY')->get()->row()->dateX, '4' => $this->db->select('COUNT(id_ConnectionLog) AS dateX')->from('connection_log')->where('cl_Event', 'desconexão')->where('cl_Client', $client_name)->where('date(cl_Date) = CURDATE() - INTERVAL 2 DAY')->get()->row()->dateX, '5' => $this->db->select('COUNT(id_ConnectionLog) AS dateX')->from('connection_log')->where('cl_Event', 'desconexão')->where('cl_Client', $client_name)->where('date(cl_Date) = CURDATE() - INTERVAL 1 DAY')->get()->row()->dateX, '6' => $this->db->select('COUNT(id_ConnectionLog) AS dateX')->from('connection_log')->where('cl_Event', 'desconexão')->where('cl_Client', $client_name)->where('date(cl_Date) = CURDATE() - INTERVAL 0 DAY')->get()->row()->dateX
) );