GroupBy Email & get earliest created_at date in Group - Laravel Eloquent





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How can I get the earliest created_at date when using groupBy in an eloquent statement?



I have a table with the following:



| id | name   | email   | created_at          |

|----|--------|---------|---------------------|

| 1  | test   | 1@1.com | 2018-01-01 09:00:00 |

| 2  | test   | 1@1.com | 2018-01-02 09:00:00 |

| 3  | test 2 | 2@2.com | 2018-01-02 09:00:00 |

| 4  | test 2 | 2@2.com | 2018-01-03 09:00:00 |

| 5  | test   | 1@1.com | 2018-01-03 09:00:00 |

| 6  | test   | 1@1.com | 2018-01-04 09:00:00 |

| 7  | test   | 1@1.com | 2018-01-05 09:00:00 |

| 8  | test 3 | 3@3.com | 2018-01-06 09:00:00 |

| 9  | test 3 | 3@3.com | 2018-01-07 09:00:00 |


when running the following query:



Customers::OrderBy('created_at', 'desc')->groupBy('email')->paginate('5');


I was expecting to get the results in the following order:



Test 3 (created: 2018-01-07)

Test   (created: 2018-01-05)

Test 2 (created: 2018-01-03)


But instead I am getting so it doesn't look like it's respecting the OrderBy 



Test 3 (created: 2018-01-06)

Test 2 (created: 2018-01-02)

Test   (created: 2018-01-01)


Here is the SQL fiddle
http://sqlfiddle.com/#!9/89ee39/2



# EDIT - Answer based on response

Thanks to Nesku, finally query to get this working was: 



 return DB::table('customers')

        ->select(DB::raw('email, max(created_at)'))

        ->groupBy('email')

        ->orderBy('max(created_at)', 'desc')

        ->get();





php mysql laravel eloquent







share|improve this question































    0















    How can I get the earliest created_at date when using groupBy in an eloquent statement?



    I have a table with the following:



    | id | name   | email   | created_at          |
    
|----|--------|---------|---------------------|
    
| 1  | test   | 1@1.com | 2018-01-01 09:00:00 |
    
| 2  | test   | 1@1.com | 2018-01-02 09:00:00 |
    
| 3  | test 2 | 2@2.com | 2018-01-02 09:00:00 |
    
| 4  | test 2 | 2@2.com | 2018-01-03 09:00:00 |
    
| 5  | test   | 1@1.com | 2018-01-03 09:00:00 |
    
| 6  | test   | 1@1.com | 2018-01-04 09:00:00 |
    
| 7  | test   | 1@1.com | 2018-01-05 09:00:00 |
    
| 8  | test 3 | 3@3.com | 2018-01-06 09:00:00 |
    
| 9  | test 3 | 3@3.com | 2018-01-07 09:00:00 |


    when running the following query:



    Customers::OrderBy('created_at', 'desc')->groupBy('email')->paginate('5');


    I was expecting to get the results in the following order:



    Test 3 (created: 2018-01-07)
    
Test   (created: 2018-01-05)
    
Test 2 (created: 2018-01-03)


    But instead I am getting so it doesn't look like it's respecting the OrderBy 



    Test 3 (created: 2018-01-06)
    
Test 2 (created: 2018-01-02)
    
Test   (created: 2018-01-01)


    Here is the SQL fiddle
    http://sqlfiddle.com/#!9/89ee39/2



    # EDIT - Answer based on response

    Thanks to Nesku, finally query to get this working was: 



     return DB::table('customers')
    
        ->select(DB::raw('email, max(created_at)'))
    
        ->groupBy('email')
    
        ->orderBy('max(created_at)', 'desc')
    
        ->get();





    php mysql laravel eloquent







    share|improve this question



























      0












      0








      0


      0






      How can I get the earliest created_at date when using groupBy in an eloquent statement?



      I have a table with the following:



      | id | name   | email   | created_at          |
      
|----|--------|---------|---------------------|
      
| 1  | test   | 1@1.com | 2018-01-01 09:00:00 |
      
| 2  | test   | 1@1.com | 2018-01-02 09:00:00 |
      
| 3  | test 2 | 2@2.com | 2018-01-02 09:00:00 |
      
| 4  | test 2 | 2@2.com | 2018-01-03 09:00:00 |
      
| 5  | test   | 1@1.com | 2018-01-03 09:00:00 |
      
| 6  | test   | 1@1.com | 2018-01-04 09:00:00 |
      
| 7  | test   | 1@1.com | 2018-01-05 09:00:00 |
      
| 8  | test 3 | 3@3.com | 2018-01-06 09:00:00 |
      
| 9  | test 3 | 3@3.com | 2018-01-07 09:00:00 |


      when running the following query:



      Customers::OrderBy('created_at', 'desc')->groupBy('email')->paginate('5');


      I was expecting to get the results in the following order:



      Test 3 (created: 2018-01-07)
      
Test   (created: 2018-01-05)
      
Test 2 (created: 2018-01-03)


      But instead I am getting so it doesn't look like it's respecting the OrderBy 



      Test 3 (created: 2018-01-06)
      
Test 2 (created: 2018-01-02)
      
Test   (created: 2018-01-01)


      Here is the SQL fiddle
      http://sqlfiddle.com/#!9/89ee39/2



      # EDIT - Answer based on response

      Thanks to Nesku, finally query to get this working was: 



       return DB::table('customers')
      
        ->select(DB::raw('email, max(created_at)'))
      
        ->groupBy('email')
      
        ->orderBy('max(created_at)', 'desc')
      
        ->get();





      php mysql laravel eloquent







      share|improve this question
















      How can I get the earliest created_at date when using groupBy in an eloquent statement?



      I have a table with the following:



      | id | name   | email   | created_at          |
      
|----|--------|---------|---------------------|
      
| 1  | test   | 1@1.com | 2018-01-01 09:00:00 |
      
| 2  | test   | 1@1.com | 2018-01-02 09:00:00 |
      
| 3  | test 2 | 2@2.com | 2018-01-02 09:00:00 |
      
| 4  | test 2 | 2@2.com | 2018-01-03 09:00:00 |
      
| 5  | test   | 1@1.com | 2018-01-03 09:00:00 |
      
| 6  | test   | 1@1.com | 2018-01-04 09:00:00 |
      
| 7  | test   | 1@1.com | 2018-01-05 09:00:00 |
      
| 8  | test 3 | 3@3.com | 2018-01-06 09:00:00 |
      
| 9  | test 3 | 3@3.com | 2018-01-07 09:00:00 |


      when running the following query:



      Customers::OrderBy('created_at', 'desc')->groupBy('email')->paginate('5');


      I was expecting to get the results in the following order:



      Test 3 (created: 2018-01-07)
      
Test   (created: 2018-01-05)
      
Test 2 (created: 2018-01-03)


      But instead I am getting so it doesn't look like it's respecting the OrderBy 



      Test 3 (created: 2018-01-06)
      
Test 2 (created: 2018-01-02)
      
Test   (created: 2018-01-01)


      Here is the SQL fiddle
      http://sqlfiddle.com/#!9/89ee39/2



      # EDIT - Answer based on response

      Thanks to Nesku, finally query to get this working was: 



       return DB::table('customers')
      
        ->select(DB::raw('email, max(created_at)'))
      
        ->groupBy('email')
      
        ->orderBy('max(created_at)', 'desc')
      
        ->get();





      php mysql laravel eloquent




      php mysql laravel eloquent






      share|improve this question















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      edited Nov 23 '18 at 20:12







      just_chris

















      asked Nov 23 '18 at 17:40









      just_chrisjust_chris

      949




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          1 Answer
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          You can't order by created_at because it contains multiples values, you can however take the max of created_at for each email and order by that.



          The SQL query would look like this :



          SELECT email, max(created_at)
          
FROM `customers`
          
GROUP BY email
          
ORDER BY max(created_at) DESC


          http://sqlfiddle.com/#!9/89ee39/12






          share|improve this answer
























          • Thank you Nesku, worked perfectly :)

            – just_chris
            Nov 23 '18 at 20:10












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          oldest

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          1














          You can't order by created_at because it contains multiples values, you can however take the max of created_at for each email and order by that.



          The SQL query would look like this :



          SELECT email, max(created_at)
          
FROM `customers`
          
GROUP BY email
          
ORDER BY max(created_at) DESC


          http://sqlfiddle.com/#!9/89ee39/12






          share|improve this answer
























          • Thank you Nesku, worked perfectly :)

            – just_chris
            Nov 23 '18 at 20:10
















          1














          You can't order by created_at because it contains multiples values, you can however take the max of created_at for each email and order by that.



          The SQL query would look like this :



          SELECT email, max(created_at)
          
FROM `customers`
          
GROUP BY email
          
ORDER BY max(created_at) DESC


          http://sqlfiddle.com/#!9/89ee39/12






          share|improve this answer
























          • Thank you Nesku, worked perfectly :)

            – just_chris
            Nov 23 '18 at 20:10














          1












          1








          1







          You can't order by created_at because it contains multiples values, you can however take the max of created_at for each email and order by that.



          The SQL query would look like this :



          SELECT email, max(created_at)
          
FROM `customers`
          
GROUP BY email
          
ORDER BY max(created_at) DESC


          http://sqlfiddle.com/#!9/89ee39/12






          share|improve this answer













          You can't order by created_at because it contains multiples values, you can however take the max of created_at for each email and order by that.



          The SQL query would look like this :



          SELECT email, max(created_at)
          
FROM `customers`
          
GROUP BY email
          
ORDER BY max(created_at) DESC


          http://sqlfiddle.com/#!9/89ee39/12







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Nov 23 '18 at 18:36









          NeskuNesku

          4211412




          4211412













          • Thank you Nesku, worked perfectly :)

            – just_chris
            Nov 23 '18 at 20:10



















          • Thank you Nesku, worked perfectly :)

            – just_chris
            Nov 23 '18 at 20:10

















          Thank you Nesku, worked perfectly :)

          – just_chris
          Nov 23 '18 at 20:10





          Thank you Nesku, worked perfectly :)

          – just_chris
          Nov 23 '18 at 20:10




















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