Featuring group stats

[KhaledBousrih]

The stats endpoint provides global informations about the requested model

{
  "objects_count": 125,
  "num_total_pages": 2,
  "max_allowed_objects_per_page": 100,
  "timestamp_start": 0.0,
  "timestamp_end": 701184650.0,
  "page_urls": {
    "page1": "https://<webapp>/api/v1.1/my-model/",
    "page2": "https://<webapp>/api/v1.1/my-model/?page=2"
  }
}

It would be usefull to group the objects count by a field name, to have a counter of the each value.

For example, we could get the count of teh objects by status:

{
  "objects_count": 125,
  "num_total_pages": 2,
  "max_allowed_objects_per_page": 100,
  "timestamp_start": 0.0,
  "timestamp_end": 701184650.0,
  "page_urls": {
    "page1": "https://<webapp>/api/v1.1/my-model/",
    "page2": "https://<webapp>/api/v1.1/my-model/?page=2"
  },
  "results":{
    "status":{
      "COMPLETED": 113,
      "FAILED": 12
    }
  }
}

We could also specify more than one field name, and get the counter of the values of these fields (separated or combined, depending on the user's needs):

Separated:

{
  "objects_count": 125,
  "num_total_pages": 2,
  "max_allowed_objects_per_page": 100,
  "timestamp_start": 0.0,
  "timestamp_end": 701184650.0,
  "page_urls": {
    "page1": "https://<webapp>/api/v1.1/my-model/",
    "page2": "https://<webapp>/api/v1.1/my-model/?page=2"
  },
  "results":{
    "status":{
      "COMPLETED": 113,
      "FAILED": 12
    },
    "archived":{
      "true": 53,
      "false": 72
    }
  }
}

combined:

{
  "objects_count": 125,
  "num_total_pages": 2,
  "max_allowed_objects_per_page": 100,
  "timestamp_start": 0.0,
  "timestamp_end": 701184650.0,
  "page_urls": {
    "page1": "https://<webapp>/api/v1.1/my-model/",
    "page2": "https://<webapp>/api/v1.1/my-model/?page=2"
  },
  "results":{
    "status,archived":{
      "COMPLETED,true": 45,
      "COMPLETED,false": 68,
      "FAILED,true": 8,
      "FAILED,false": 4
    }
  }
}