how to find if string is in a result of a query set in Django









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I have the following object result from query set on a model as follow:



ddd = Post_Sub_Category.objects.filter(
category_name__category_name__iexact=dd
).values_list('sub_category_name', flat=True)


the query set I obtained:



<QuerySet ['car', 'spare parts', 'truck', 'motor cycle']>


then tried:



print(ddd.values('sub_category_name'))


I obtained the following result:



<QuerySet [
<Post_Sub_Category: car>,
<Post_Sub_Category: spare parts>,
<Post_Sub_Category: truck>,
<Post_Sub_Category: motor cycle>
]


How to access the values only and make list of them as string:



['car','spare parts','truck','motor cycle'].


the first query set seems that it gave me what I want. However, When I use following if statement. it does not executed:



if 'car' in ddd:
# do some thing


as you can see car should be in the list. so, I could not understand why the if statement has not been executed.



any help or suggestion?










share|improve this question



























    up vote
    1
    down vote

    favorite












    I have the following object result from query set on a model as follow:



    ddd = Post_Sub_Category.objects.filter(
    category_name__category_name__iexact=dd
    ).values_list('sub_category_name', flat=True)


    the query set I obtained:



    <QuerySet ['car', 'spare parts', 'truck', 'motor cycle']>


    then tried:



    print(ddd.values('sub_category_name'))


    I obtained the following result:



    <QuerySet [
    <Post_Sub_Category: car>,
    <Post_Sub_Category: spare parts>,
    <Post_Sub_Category: truck>,
    <Post_Sub_Category: motor cycle>
    ]


    How to access the values only and make list of them as string:



    ['car','spare parts','truck','motor cycle'].


    the first query set seems that it gave me what I want. However, When I use following if statement. it does not executed:



    if 'car' in ddd:
    # do some thing


    as you can see car should be in the list. so, I could not understand why the if statement has not been executed.



    any help or suggestion?










    share|improve this question

























      up vote
      1
      down vote

      favorite









      up vote
      1
      down vote

      favorite











      I have the following object result from query set on a model as follow:



      ddd = Post_Sub_Category.objects.filter(
      category_name__category_name__iexact=dd
      ).values_list('sub_category_name', flat=True)


      the query set I obtained:



      <QuerySet ['car', 'spare parts', 'truck', 'motor cycle']>


      then tried:



      print(ddd.values('sub_category_name'))


      I obtained the following result:



      <QuerySet [
      <Post_Sub_Category: car>,
      <Post_Sub_Category: spare parts>,
      <Post_Sub_Category: truck>,
      <Post_Sub_Category: motor cycle>
      ]


      How to access the values only and make list of them as string:



      ['car','spare parts','truck','motor cycle'].


      the first query set seems that it gave me what I want. However, When I use following if statement. it does not executed:



      if 'car' in ddd:
      # do some thing


      as you can see car should be in the list. so, I could not understand why the if statement has not been executed.



      any help or suggestion?










      share|improve this question















      I have the following object result from query set on a model as follow:



      ddd = Post_Sub_Category.objects.filter(
      category_name__category_name__iexact=dd
      ).values_list('sub_category_name', flat=True)


      the query set I obtained:



      <QuerySet ['car', 'spare parts', 'truck', 'motor cycle']>


      then tried:



      print(ddd.values('sub_category_name'))


      I obtained the following result:



      <QuerySet [
      <Post_Sub_Category: car>,
      <Post_Sub_Category: spare parts>,
      <Post_Sub_Category: truck>,
      <Post_Sub_Category: motor cycle>
      ]


      How to access the values only and make list of them as string:



      ['car','spare parts','truck','motor cycle'].


      the first query set seems that it gave me what I want. However, When I use following if statement. it does not executed:



      if 'car' in ddd:
      # do some thing


      as you can see car should be in the list. so, I could not understand why the if statement has not been executed.



      any help or suggestion?







      django






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Nov 10 at 1:58









      markwalker_

      4,34853572




      4,34853572










      asked Nov 10 at 1:41









      Saleh

      728




      728






















          1 Answer
          1






          active

          oldest

          votes

















          up vote
          2
          down vote



          accepted










          I think you might need to index that. The values list actually looks like it returns a list. Can you try:



          try: 
          ddd = ddd[0]
          except IndexError:
          # Catch index error
          pass

          if 'car' in ddd:
          # do some thing


          If that doesn't work, try explicitly converting your QuerySetList to a regular ole list, as in this question, like this:



          ddd = list(ddd)


          Also, this looks a little strange to me: category_name__category_name__iexact=dd. Posting your corresponding models would be helpful.






          share|improve this answer






















          • The suggested answer in the link you provided me with does the work. (stackoverflow.com/questions/37140426/…)
            – Saleh
            Nov 10 at 2:01










          • The link is broken? Or using list on your QuerySet didn't work?
            – Scott Skiles
            Nov 10 at 12:07










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          1 Answer
          1






          active

          oldest

          votes








          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes








          up vote
          2
          down vote



          accepted










          I think you might need to index that. The values list actually looks like it returns a list. Can you try:



          try: 
          ddd = ddd[0]
          except IndexError:
          # Catch index error
          pass

          if 'car' in ddd:
          # do some thing


          If that doesn't work, try explicitly converting your QuerySetList to a regular ole list, as in this question, like this:



          ddd = list(ddd)


          Also, this looks a little strange to me: category_name__category_name__iexact=dd. Posting your corresponding models would be helpful.






          share|improve this answer






















          • The suggested answer in the link you provided me with does the work. (stackoverflow.com/questions/37140426/…)
            – Saleh
            Nov 10 at 2:01










          • The link is broken? Or using list on your QuerySet didn't work?
            – Scott Skiles
            Nov 10 at 12:07














          up vote
          2
          down vote



          accepted










          I think you might need to index that. The values list actually looks like it returns a list. Can you try:



          try: 
          ddd = ddd[0]
          except IndexError:
          # Catch index error
          pass

          if 'car' in ddd:
          # do some thing


          If that doesn't work, try explicitly converting your QuerySetList to a regular ole list, as in this question, like this:



          ddd = list(ddd)


          Also, this looks a little strange to me: category_name__category_name__iexact=dd. Posting your corresponding models would be helpful.






          share|improve this answer






















          • The suggested answer in the link you provided me with does the work. (stackoverflow.com/questions/37140426/…)
            – Saleh
            Nov 10 at 2:01










          • The link is broken? Or using list on your QuerySet didn't work?
            – Scott Skiles
            Nov 10 at 12:07












          up vote
          2
          down vote



          accepted







          up vote
          2
          down vote



          accepted






          I think you might need to index that. The values list actually looks like it returns a list. Can you try:



          try: 
          ddd = ddd[0]
          except IndexError:
          # Catch index error
          pass

          if 'car' in ddd:
          # do some thing


          If that doesn't work, try explicitly converting your QuerySetList to a regular ole list, as in this question, like this:



          ddd = list(ddd)


          Also, this looks a little strange to me: category_name__category_name__iexact=dd. Posting your corresponding models would be helpful.






          share|improve this answer














          I think you might need to index that. The values list actually looks like it returns a list. Can you try:



          try: 
          ddd = ddd[0]
          except IndexError:
          # Catch index error
          pass

          if 'car' in ddd:
          # do some thing


          If that doesn't work, try explicitly converting your QuerySetList to a regular ole list, as in this question, like this:



          ddd = list(ddd)


          Also, this looks a little strange to me: category_name__category_name__iexact=dd. Posting your corresponding models would be helpful.







          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited Nov 10 at 14:43

























          answered Nov 10 at 1:48









          Scott Skiles

          5381723




          5381723











          • The suggested answer in the link you provided me with does the work. (stackoverflow.com/questions/37140426/…)
            – Saleh
            Nov 10 at 2:01










          • The link is broken? Or using list on your QuerySet didn't work?
            – Scott Skiles
            Nov 10 at 12:07
















          • The suggested answer in the link you provided me with does the work. (stackoverflow.com/questions/37140426/…)
            – Saleh
            Nov 10 at 2:01










          • The link is broken? Or using list on your QuerySet didn't work?
            – Scott Skiles
            Nov 10 at 12:07















          The suggested answer in the link you provided me with does the work. (stackoverflow.com/questions/37140426/…)
          – Saleh
          Nov 10 at 2:01




          The suggested answer in the link you provided me with does the work. (stackoverflow.com/questions/37140426/…)
          – Saleh
          Nov 10 at 2:01












          The link is broken? Or using list on your QuerySet didn't work?
          – Scott Skiles
          Nov 10 at 12:07




          The link is broken? Or using list on your QuerySet didn't work?
          – Scott Skiles
          Nov 10 at 12:07

















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