How to get the max ID in a Join Query in Laravel 5 (Integrity constraint violation:)

问题

My query is like this:

$deals=DB::table('leadsheet')
            ->join('Deal', 'leadsheet.leadcode', '=', 'Deal.leadcode')
             ->join('benefits', 'leadsheet.leadcode', '=', 'benefits.leadcode')
             ->join('delegatedealinfo', 'leadsheet.leadcode', '=', 'delegatedealinfo.leadcode')
              ->join('vipbooking', 'leadsheet.leadcode', '=', 'vipbooking.leadcode')
             ->where('id', DB::raw("(select max(`id`) from vipbooking)"))
           ->where('leadsheet.leadcat', '=','Delegates')

            ->get();

So I have following tables:

1.leadsheet 
   -- leadcode
   -- leadcat
2.Deal
   -- leadcode
3.benefits
   -- leadcode
4.delegatedealinfo
   -- leadcode
5.vipbooking
   -- leadcode

What I'm trying to do is to get all the maximum id of vipbooking form where leadcode is same as all the leadcode FROM leadsheet WHERE leadsheet.leadcat=Delegates

My only problem is MAX ID for vipbooking form is not working

Can any one one help me out

UPDATE1

after applying the solution provided by @anant

Error

SQLSTATE[23000]: Integrity constraint violation: 1052 Column 'id' in where clause is ambiguous (SQL: select * from `leadsheet` inner join `Deal` on `leadsheet`.`leadcode` = `Deal`.`leadcode` inner join `benefits` on `leadsheet`.`leadcode` = `benefits`.`leadcode` inner join `delegatedealinfo` on `leadsheet`.`leadcode` = `delegatedealinfo`.`leadcode` inner join `vipbooking` on `leadsheet`.`leadcode` = `vipbooking`.`leadcode` where `id` = (select MAX(id) AS vipid from vipbooking) and `leadsheet`.`leadcat` = Delegates)

Rephrasing Question

I want to get the details of the vipbooking form for a Deal of a Delegate user , we can find if a Deal is Vendor or Delegate from Leadsheet table

Leadsheet

id | leadcode | leadcat

1  | DL2016012| Delegates
2  | DL2016013| Delegates
3  | VL2016001| Vendors
4  | VL2016002| Vendors

Deals

id | leadcode | DealAmount

1  | DL2016012| 123
2  | VL2016002| 1000
2  | DL2016013| 1200

vipbooking

    id | leadcode | date      | bookingtxt

    1  | DL2016012| 20-04-2016| xxx
    2  | DL2016012| 20-04-2016| dddd
    3  | VL2016012| 21-04-2016| ppp
    4  | DL2016013| 20-04-2016| xxx
    5  | DL2016013| 22-04-2016| dddd

So my Out put should have

 2 123 | Delegates| DL2016012| 20-04-2016| dddd
 5 1200| Delegates| DL2016013| 22-04-2016| dddd

Thanks

回答1:

You can try with the two queries.

$vipBookingMaxId = DB::table('vipbooking')
        ->select(DB::raw("MAX(`id`) AS maxId"))
        ->get();
$maxId = (null != $vipBookingMaxId) ? $vipBookingMaxId->maxId : 0;
$dealsQuery = DB::table('leadsheet')
        ->join('Deal', 'leadsheet.leadcode', '=', 'Deal.leadcode')
        ->join('benefits', 'leadsheet.leadcode', '=', 'benefits.leadcode')
        ->join('delegatedealinfo', 'leadsheet.leadcode', '=', 'delegatedealinfo.leadcode')
        ->join('vipbooking', 'leadsheet.leadcode', '=', 'vipbooking.leadcode');

if ($maxId) {
    $dealsQuery->where('id', $vipBookingMaxId->maxId);
}

$deals = $dealsQuery->where('leadsheet.leadcat', '=', 'Delegates')->get();

I hope it will help you.

回答2:

Try this

$deals=DB::table('leadsheet')
            ->join('Deal', 'leadsheet.leadcode', '=', 'Deal.leadcode')
             ->join('benefits', 'leadsheet.leadcode', '=', 'benefits.leadcode')
             ->join('delegatedealinfo', 'leadsheet.leadcode', '=', 'delegatedealinfo.leadcode')
              ->join('vipbooking', 'leadsheet.leadcode', '=', 'vipbooking.leadcode')
             ->where('leadsheet.id', DB::raw("(select max(`id`) from vipbooking)"))
           ->where('leadsheet.leadcat', '=','Delegates')

            ->get();

added leadsheet.id

来源：https://stackoverflow.com/questions/35474941/how-to-get-the-max-id-in-a-join-query-in-laravel-5-integrity-constraint-violati

标签

php

mysql

eloquent

laravel-5.1

has-many