How to count objects in django - django

Question

Thank you all for always sharing your knowledge here.
I have an issue with counting an object in Django. I am currently learning and working on a basic HR system and already have my views, models, et al set up. I plan to have an interface whereby I can print out employees count based on gender. The one I currently have set up is increasing the counts for both male and female any time I create a new employee. Please how do I correct this anomaly?
views.py
from django.contrib.auth.decorators import login_required
from django.contrib.auth.models import User
from django.shortcuts import render
from django_tables2 import RequestConfig
from django_tables2.export import TableExport
from .models import Employee
from .models import EmployeeFilter
from .tables import EmployeeTable
#login_required()
def employees(request):
filter = EmployeeFilter(request.GET, queryset=Employee.objects.all())
table = EmployeeTable(filter.qs)
RequestConfig(request, paginate={"per_page": 15}).configure(table)
count = Employee.objects.all().count()
male_count = Employee.objects.filter(gender__contains='Male').count()
female_count = Employee.objects.filter(gender__contains='Female').count()
user_count = User.objects.all().count()
export_format = request.GET.get("_export", None)
if TableExport.is_valid_format(export_format):
exporter = TableExport(export_format, table)
return exporter.response("table.{}".format("csv", "xlsx"))
return render(request, "employees/employees.html", {
"table": table,
"filter": filter,
"count": count,
"male_count": male_count,
"female_count": female_count,
"user_count": user_count,
})
template.html
{% extends "employees/base.html" %}
{% load render_table from django_tables2 %}
{% load django_tables2 %}
{% load querystring from django_tables2 %}
{% block content %}
<!--Data overview-->
<div class="container data overview">
<div class="row">
<div class="col-md-3">
<div class="container-fluid bg-warning data-ov-container">
<div class="row">
<div class="col-8">
<h6 class="data-heading font-weight-bold">Total Employees</h6>
<p class="data-text ">{{ count }}</p>
</div>
<div class="col-4">
<i class="fas fa-users data-icon"></i>
</div>
</div>
</div>
</div>
<div class="col-md-3">
<div class="container-fluid bg-dark data-ov-container">
<div class="row">
<div class="col-9">
<h6 class="data-heading text-white font-weight-bold">Male Employees</h6>
<p class="data-text text-white">{{ male_count }}</p>
</div>
<div class="col-3">
<i class="fas fa-male data-icon text-white"></i>
</div>
</div>
</div>
</div>
<div class="col-md-3">
<div class="container-fluid bg-danger data-ov-container">
<div class="row">
<div class="col-9">
<h6 class="data-heading text-white font-weight-bold">Female Employees</h6>
<p class="data-text text-white">{{ female_count }}</p>
</div>
<div class="col-3">
<i class="fas fa-female data-icon text-white"></i>
</div>
</div>
</div>
</div>
<div class="col-md-3">
<div class="container-fluid bg-secondary data-ov-container">
<div class="row">
<div class="col-8">
<h6 class="data-heading text-white font-weight-bold">Active Users</h6>
<p class="data-text text-white">{{ user_count }}</p>
</div>
<div class="col-4">
<i class="fas fa-users-cog data-icon text-white"></i>
</div>
</div>
</div>
</div>
</div>
</div>
<!--Employees data-->
<div class="filter-container container-fluid">
<div class="row">
<div class="col-md-9">
<!--filter form-->
<form action="" class="form form-inline employee-filter-form" method="get">
<legend class="mb-2">Filter employee records</legend>
{{ form.non_field_errors }}
<div class="fieldWrapper">
{{ filter.form.first_name.errors }}
{{ filter.form.first_name }}
</div>
<div class="fieldWrapper">
{{ filter.form.last_name.errors }}
{{ filter.form.last_name }}
</div>
<button aria-expanded="false" aria-haspopup="true"
class="ml-2 btn btn-danger filter-btn" type="submit">
Filter
</button>
</form>
</div>
<div class="col-md-3 download-btn-col">
<button aria-expanded="false" aria-haspopup="true"
class="mr-3 btn btn-success" type="submit">
<i class="fas fa-upload"></i> Import
</button>
<div class="btn-group download-btn">
<button aria-expanded="false" aria-haspopup="true"
class="btn btn-warning dropdown-toggle"
data-toggle="dropdown" type="button">
<i class="fas fa-file-export"></i> Export
</button>
<div class="dropdown-menu">
<a class="dropdown-item" href="{% querystring '_export'='csv' %}">csv</a>
<a class="dropdown-item" href="{% querystring '_export'='xlsx' %}">xlsx</a>
</div>
</div>
</div>
</div>
</div>
<!-- data rendered here -->
{% render_table table 'django_tables2/bootstrap.html' %}
<!-- data rendered here -->
{% endblock content %}
models.py
...
GENDER_CHOICES = (
('FEMALE', 'Female'),
('MALE', 'Male'),
("DWTS" "Don't want to say"),
)
...
#python_2_unicode_compatible
class Employee(models.Model):
# basic information of employee
first_name = models.CharField(_('first name'), max_length=40)
last_name = models.CharField(_('last name'), max_length=40)
emp_photo = models.ImageField(_('passport'))
date_of_birth = models.DateField(_('birthday'))
gender = models.CharField(_('gender'), max_length=15, choices=GENDER_CHOICES, default=['MALE', 'Male'])
house_address = models.CharField(_('house address'), max_length=100)
city_of_residence = models.CharField(_('city'), max_length=100)
state_of_residence = models.CharField(_('state'), max_length=100, choices=NIGERIAN_STATE_CHOICES)
country_of_residence = models.CharField(_('country'), max_length=100, choices=COUNTRY_CHOICES,
default=[156, 'Nigeria'])
state_of_origin = models.CharField(_('state of origin'), max_length=100, choices=NIGERIAN_STATE_CHOICES)
class Meta:
verbose_name = _('Employee')
verbose_name_plural = _('Employees')
def __str__(self):
return "{} {}".format(self.first_name, self.last_name)
#python_2_unicode_compatible
class EmployeeFilter(django_filters.FilterSet):
first_name = django_filters.CharFilter(lookup_expr='iexact', widget=TextInput(
attrs={'placeholder': 'First name', 'class': 'input_search'}))
last_name = django_filters.CharFilter(lookup_expr='iexact',
widget=TextInput(attrs={'placeholder': 'Last name', 'class': 'input_search'}))
class Meta:
model = Employee
fields = ["first_name", "last_name", ]

Answer 1

I think you need to remove contains from your filter:
male_count = Employee.objects.filter(gender='Male').count()
female_count = Employee.objects.filter(gender='Female').count()
Or make a single request:
male_femail_count = Employee.objects.values('gender').annotate(count=Count('id'))
# result
# [{'gender': 'Male', 'count': 2}, {'gender': 'Female', 'count': 3}]