Join query with foreach in Laravel - mysql

Question

I am trying to learn Laravel, so I apologize if my question is simple. I have 2 table (table1, table2) like this:
table1:
ID date time
1 1 1
2 4 2
3 5 3
table2:
ID V R
1 123 T
1 12 F
1 43 F
2 32 T
2 23 T
3 43 F
because I have 3 type of IDs (which could be more or less) I want to divide table2 into 3 tables using table1. like this:
table2_1: for ID:1
V R
123 T
12 F
43 F
table2_2: for ID:2
V R
23 T
23 T
table2_3: for ID:3
V R
43 F
I think I need somthing like this:
#foreach ($table1 as $t)
<table class="table">
{!! $t -> ID!!}
<thead>
<tr>
<th scope="col">R</th>
<th scope="col">V</th>
</tr>
</thead>
<tbody>
<!---Query result ---->
</tbody>
#endforeach
which in Query result I need a to select V and R from joining table1 and table2.
but I don'n know the exact code.
Any Idea how can I do this? Thanks in advance.

Answer 1

You may not even need to involve table1 here. Just query table2 with an ORDER BY clause, and then iterate the result set, turning out new HTML tables for each new ID value:
$result = DB::table('table2')
->orderBy('ID')
->get();
$prev_id = NULL;
foreach($result as $row) {
$curr_id = $row->ID;
if ($prev_id != NULL && $curr_id != $prev_id) {
echo "</table>";
}
if ($prev_id == NULL || $curr_id != $prev_id) {
$prev_id = $curr_id;
echo "<table class=\"table\" colspan=\"2\">";
echo "<tr><th scope=\"col\">V</th><th scope=\"col\">R</th></tr>";
}
echo "<tr><td>" . $row->V . "</td><td>" . $row->R . "</td></tr>";
}
echo "</table>";