Merge multiple text fields in DJANGO into one text field and then serialize












0















I have a model Activity, which has a field data that contains JSON string:



class Activity(models.Model):
date_added = models.DateTimeField(auto_now_add=True)
start_date = models.DateTimeField(default=datetime.datetime.now)
data = models.TextField() # stores activity's JSON in text format, not as Python object
number = models.IntegerField(default=0)


I would like to create an API endpoint that would expose data fields of all Activity objects as one big JSON string,so my other app could receive all data in one request.



So I thought I would create another model that would hold such merged JSON:



class Activities(models.Model):
#"data" field contains all Activity model JSONs as one big JSON string that can be easily
# serialized and received by Bokeh app in single request, as opposed to Bokeh app making requests to single activities

data = models.TextField(default='')


Questions:





  1. What is the best way to merge same text fields of multiple objects into one that can be safely serialized by Django Rest Framework? For example, I can do this in views, but it does not feel good:



    activity.data = activity_json



    activities.data = activities.data + 'DELIMITER' + activity.data



  2. Is this even a good practice? Or are there better ways to achieve the same?



As a side note, I am not using Postgres, so cannot use JSON model field.










share|improve this question





























    0















    I have a model Activity, which has a field data that contains JSON string:



    class Activity(models.Model):
    date_added = models.DateTimeField(auto_now_add=True)
    start_date = models.DateTimeField(default=datetime.datetime.now)
    data = models.TextField() # stores activity's JSON in text format, not as Python object
    number = models.IntegerField(default=0)


    I would like to create an API endpoint that would expose data fields of all Activity objects as one big JSON string,so my other app could receive all data in one request.



    So I thought I would create another model that would hold such merged JSON:



    class Activities(models.Model):
    #"data" field contains all Activity model JSONs as one big JSON string that can be easily
    # serialized and received by Bokeh app in single request, as opposed to Bokeh app making requests to single activities

    data = models.TextField(default='')


    Questions:





    1. What is the best way to merge same text fields of multiple objects into one that can be safely serialized by Django Rest Framework? For example, I can do this in views, but it does not feel good:



      activity.data = activity_json



      activities.data = activities.data + 'DELIMITER' + activity.data



    2. Is this even a good practice? Or are there better ways to achieve the same?



    As a side note, I am not using Postgres, so cannot use JSON model field.










    share|improve this question



























      0












      0








      0


      0






      I have a model Activity, which has a field data that contains JSON string:



      class Activity(models.Model):
      date_added = models.DateTimeField(auto_now_add=True)
      start_date = models.DateTimeField(default=datetime.datetime.now)
      data = models.TextField() # stores activity's JSON in text format, not as Python object
      number = models.IntegerField(default=0)


      I would like to create an API endpoint that would expose data fields of all Activity objects as one big JSON string,so my other app could receive all data in one request.



      So I thought I would create another model that would hold such merged JSON:



      class Activities(models.Model):
      #"data" field contains all Activity model JSONs as one big JSON string that can be easily
      # serialized and received by Bokeh app in single request, as opposed to Bokeh app making requests to single activities

      data = models.TextField(default='')


      Questions:





      1. What is the best way to merge same text fields of multiple objects into one that can be safely serialized by Django Rest Framework? For example, I can do this in views, but it does not feel good:



        activity.data = activity_json



        activities.data = activities.data + 'DELIMITER' + activity.data



      2. Is this even a good practice? Or are there better ways to achieve the same?



      As a side note, I am not using Postgres, so cannot use JSON model field.










      share|improve this question
















      I have a model Activity, which has a field data that contains JSON string:



      class Activity(models.Model):
      date_added = models.DateTimeField(auto_now_add=True)
      start_date = models.DateTimeField(default=datetime.datetime.now)
      data = models.TextField() # stores activity's JSON in text format, not as Python object
      number = models.IntegerField(default=0)


      I would like to create an API endpoint that would expose data fields of all Activity objects as one big JSON string,so my other app could receive all data in one request.



      So I thought I would create another model that would hold such merged JSON:



      class Activities(models.Model):
      #"data" field contains all Activity model JSONs as one big JSON string that can be easily
      # serialized and received by Bokeh app in single request, as opposed to Bokeh app making requests to single activities

      data = models.TextField(default='')


      Questions:





      1. What is the best way to merge same text fields of multiple objects into one that can be safely serialized by Django Rest Framework? For example, I can do this in views, but it does not feel good:



        activity.data = activity_json



        activities.data = activities.data + 'DELIMITER' + activity.data



      2. Is this even a good practice? Or are there better ways to achieve the same?



      As a side note, I am not using Postgres, so cannot use JSON model field.







      python json django django-rest-framework






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Nov 18 '18 at 9:34







      barciewicz

















      asked Nov 18 '18 at 9:25









      barciewiczbarciewicz

      635312




      635312
























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