Updating multiple records in database using Codeigniter - php

Question

Am trying to update multiple records in the database but my case I have a column total, which I want to update to different values. I haven't tried much here but hope I could get a clue on how to go about this.
My controller
public function update_record()
{
$id = ["19821", "19923", "19966", "19967"];
$total = ["8", "118", "90", "100"];
if ($this->some_model->batch_data('records', $total, $id) == true) {
echo "yes";
} else {
echo "no";
}
}
The Model
public function batch_data($table, $data, $where)
{
$this->db->where_in('id',$where);
$this->db->set('total',$data);
$this->db->update($table);
return true;
}
I have not tested this yet but currently looking for a more and efficient way of doing this.

Answer 1

If you still want to update multiple records using the update_batch method, you could first assign the id and total as key-value arrays, then use the update_batch method.
Controller :
public function update_record()
{
$id = ["19821", "19923", "19966", "19967"];
$total = ["8", "118", "90", "100"];
$update_data = [];
foreach ($id as $key => $value) {
$update_data[] = [
'id' => $value,
'total' => $total[$key]
];
}
if ($this->some_model->batch_data('records', $update_data) == true) {
echo "yes";
} else {
echo "no";
}
}
Model :
public function batch_data($table, $data)
{
$this->db->update_batch($table, $data, 'id'); // this will set the id column as the condition field
return true;
}
Output :
// preview query output :
// UPDATE `records`
// SET
// `total` =
// CASE
// WHEN `id` = '19821' THEN 8
// WHEN `id` = '19923' THEN 118
// WHEN `id` = '19966' THEN 90
// WHEN `id` = '19967' THEN 100
// ELSE `total`
// END
// WHERE `id` IN ('19821', '19923', '19966', '19967')

Answer 2

As per my comment. This is a method that combines the array in to key/value pairs and updates them 1x1 wrapped in a transaction (so if one query fails nothing changes).
This is the method I would personally use as I don't like update_batchs internal workings (cases).
$id = ["19821", "19923", "19966", "19967"];
$total = ["8", "118", "90", "100"];
$combined = array_combine($id, $total);
if (count($combined) > 0) {
$this->db->trans_start();
foreach ($combined as $id => $total) {
$this->db->set('total', $total);
$this->db->where('id', $id);
$this->db->update('sometable');
}
$this->db->trans_complete();
return $this->db->trans_status();
}
return true;

Answer 3

Try this, Only for single where condition
Controller:
public function update_record()
{
$tableName = "records";
$id = ["19821", "19923", "19966", "19967"];
$total = ["8", "118", "90", "100"];
$update_data = [];
foreach ($id as $key => $value) {
$update_data[] = [
'id' => $value,
'total' => $total[$key]
];
}
$whereKey = 'id';
$this->$this->some_model->batch_data($tableName, $updateData, $whereKey);
}
Model:
public function batch_data($tableName, $updateData, $whereKey)
{
$this->db->update_batch($tableName, $updateData, $whereKey);
}