我的目标是使用CodeIgniter的insert_batch()和update_batch()的组合将传入的数据添加到我的macro_plan表中。
在下面的脚本中,我试图基于sr_no值查询数据库中的现有行,然后适当地调用批处理查询方法。
function insert_batch($dataSet)
{
$query = $this->db->query("select sr_no from macro_plan");
$data = $query->result_array();
$sr_nos=array();
foreach($data as $key => $value):
$sr_nos[$key]=$value['sr_no'];
endforeach;
$query1= $this->db->query("select * from macro_plan WHERE sr_no IN ('".$sr_nos."')");
$update_query = $query1->result();
if ($update_query->num_rows() > 0) {
$this->db->update_batch($dataSet,$this->macro_plan);//update if ids exist
} else {
$this->db->insert_batch($dataSet,$this->macro_plan);//insert if does not exist
}
}但是,我得到了“数组到字符串转换”错误。
$dataset将类似于以下内容:
Array (
[0] => Array (
[quantity_update] => 88
[sr_no] => 2020-11-1
[batch] => Batch 2
[quantity_date_update] => 05-May-20
[inq_id] => 49
)
[1] => Array (
[quantity_update] => 99
[sr_no] => 2020-11-2
[batch] => Batch 1
[quantity_date_update] => 11-May-20
[inq_id] => 49
)
)我的桌子结构是这样的:

发布于 2020-05-31 02:53:38
查询表中包含$dataSet.
sr_no值的预先存在的行,将键应用到来自sr_no值的结果集行--这允许根据旧数据快速查找新数据(查看各自的新行是否应该插入、作为更新执行,还是由于数据相同而完全被忽略。)未经检验的建议:
function insertUpdateMacroPlan($dataSet)
{
$keyedExistingRows = array_column(
$this->db
->where_in('sr_no', array_column($dataSet, 'sr_no'))
->get('macro_plan')
->result_array(),
null,
'sr_no'
);
foreach ($dataSet as $data) {
if (isset($keyedExistingRows[$data['sr_no']])) {
// sr_no exists in the db, add known id to new data array
$identified = ['id' => $keyedExistingRows[$data['sr_no']]['id']] + $data;
if ($identified != $keyedExistingRows[$data['sr_no']]) {
$updateBatch[] = $identified;
}
// if the arrays contain the same data, the new data will be discarded
} else {
$insertBatch[] = $data;
}
}
if (!empty($insertBatch)) {
$this->db->insert_batch('macro_plan', $insertBatch);
}
if (!empty($updateBatch)) {
$this->db->update_batch('macro_plan', $updateBatch, 'id');
}
}附注:如果您的业务逻辑要求sr_no值是唯一的,我建议您将sr_no列设置为唯一键,从而在表配置中反映这一点。
https://stackoverflow.com/questions/62100515
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