Laravel variable to where clause - php

Question

I am trying to extend one app to use my new Laravel app. In this scenario I am getting an unknown number of filters and I would like to forward them all to where() clause.
I have made something like this:
private function filterConverter($filter)
{
$f = [];
foreach ($filter as $singleFilter) {
$operator = $this->filterValues[$singleFilter['operator']];
$value = $operator == 'like' ? '%' . $singleFilter['value'] . '%' : $singleFilter['value'];
$f[] = $singleFilter['field'] . ',' . $operator . ',' . $value;
}
return $f;
}
The thing is that I am getting operators like EQUALS and CONTAINS so I need to convert them to = and LIKE.
With this code I am trying to do this:
return response(MyModel::where($filter)->get());
But it doesn't work. Is there any elegant way to resolve this?
EDIT/SOLUTION
Sorry to #HCK as I couldn't quite accept the answer since it doesn't answer my question, but it pointed me on the right track. The solution was to use key, operator, value keys in the array instead of what I had "keyless".
private function filterConverter($filters)
{
$filter = [];
foreach ($filters as $singleFilter) {
$operator = $this->filterMap[$singleFilter['operator']];
$value = $operator == 'LIKE' ? '%' . $singleFilter['value'] . '%' : $singleFilter['value'];
$filter[] = [
'key' => $singleFilter['field'],
'operator' => $operator,
'value' => $value
];
}
return $filter;
}

Answer 1

Not the nicest way to solve it, but this should work:
private function filterConverter($filters)
{
return collect($filters)->map(function ($filter) { // <---
if($filter['operator'] == 'CONTAINS')
{
$filter['value'] = '%' . $filter['value'] . '%';
$filter['operator'] = 'LIKE';
}
else if ($filter['operator'] == 'EQUALS')
{
$filter['operator'] = '=';
}
return collect($filter)->flatten(); // <---
})->toArray(); // <---
}
Here I'm using the Map() function of the Collection class. there is a lot of useful methods provided by this class.

Answer 2

You may follow this way
DB::table('users')
->where(function($query) use ($filter)
{
// You able to access $filter here
// You may able to to generate this block by loop
$query->where('votes', '>', 100)
->where('title', '<>', 'Admin');
})
->get();
Laravel Doc | Advanced Wheres
Exp-1
$filters = [
['key' => 'votes', 'operator' => '>', 'value' => 100]
];
DB::table('users')
->where(function ($query) use ($filters) {
foreach ($filters as $filter) {
if (#$filter['key'] && #$filter['operator'] && #$filter['value']) {
$query->where($filter['key'], $filter['operator'], $filter['value']);
}
}
})->get();
Exp-2
$filters = [
['key' => 'votes', 'operator' => '>', 'value' => 100]
];
DB::table('users')
->where(function ($query) use ($filters) {
foreach ($filters as $filter) {
if (#$filter['key'] && #$filter['operator'] && #$filter['value']) {
$query->whereRaw("{$filter['key']} {$filter['operator']} '{$filter['value']}'");
}
}
})->get();
You may also use scope function Ref
Exp-3 Laravel Scope
class User extends Model
{
public function scopeFilter($query, $filters)
{
foreach ($filters as $filter) {
if (#$filter['key'] && #$filter['value']) {
$query->where($filter['key'], #$filter['operator']?:"=", $filter['value']);
}
}
return $query;
}
}
// Use
User::filter($filters)->get();