Files
ihrm/base/methods.py
2023-09-04 16:26:14 +05:30

281 lines
9.6 KiB
Python

import random
from django.apps import apps
from django.core.exceptions import ObjectDoesNotExist
from django.db.models import ForeignKey, ManyToManyField, OneToOneField
from django.utils.translation import gettext as _
from employee.models import Employee
def filtersubordinates(request, queryset, perm=None):
"""
This method is used to filter out subordinates queryset element.
"""
user = request.user
if user.has_perm(perm):
return queryset
manager = Employee.objects.filter(employee_user_id=user).first()
queryset = queryset.filter(
employee_id__employee_work_info__reporting_manager_id=manager
)
return queryset
def filtersubordinatesemployeemodel(request, queryset, perm=None):
"""
This method is used to filter out subordinates queryset element.
"""
user = request.user
if user.has_perm(perm):
return queryset
manager = Employee.objects.filter(employee_user_id=user).first()
queryset = queryset.filter(employee_work_info__reporting_manager_id=manager)
return queryset
def is_reportingmanager(request):
"""
This method is used to check weather the employee is reporting manager or not.
"""
try:
user = request.user
return user.employee_get.reporting_manager.all().exists()
except:
return False
def choosesubordinates(
request,
form,
perm,
):
user = request.user
if user.has_perm(perm):
return form
manager = Employee.objects.filter(employee_user_id=user).first()
queryset = Employee.objects.filter(employee_work_info__reporting_manager_id=manager)
form.fields["employee_id"].queryset = queryset
return form
def choosesubordinatesemployeemodel(request, form, perm):
user = request.user
if user.has_perm(perm):
return form
manager = Employee.objects.filter(employee_user_id=user).first()
queryset = Employee.objects.filter(employee_work_info__reporting_manager_id=manager)
form.fields["employee_id"].queryset = queryset
return form
orderingList = [
{
"id": "",
"field": "",
"ordering": "",
}
]
def sortby(request, queryset, key):
"""
This method is used to sort query set by asc or desc
"""
global orderingList
id = request.user.id
# here will create dictionary object to the global orderingList if not exists,
# if exists then method will switch corresponding object ordering.
filtered_list = [x for x in orderingList if x["id"] == id]
ordering = filtered_list[0] if filtered_list else None
if ordering is None:
ordering = {
"id": id,
"field": None,
"ordering": "-",
}
orderingList.append(ordering)
sortby = request.GET.get(key)
if sortby is not None and sortby != "":
# here will update the orderingList
ordering["field"] = sortby
if queryset.query.order_by == queryset.query.order_by:
queryset = queryset.order_by(f'{ordering["ordering"]}{sortby}')
if ordering["ordering"] == "-":
ordering["ordering"] = ""
else:
ordering["ordering"] = "-"
orderingList = [item for item in orderingList if item["id"] != id]
orderingList.append(ordering)
return queryset
def random_color_generator():
r = random.randint(0, 255)
g = random.randint(0, 255)
b = random.randint(0, 255)
if r == g or g == b or b == r:
random_color_generator()
return f"rgba({r}, {g}, {b} , 0.7)"
# color_palette=[]
# Function to generate distinct colors for each object
def generate_colors(num_colors):
# Define a color palette with distinct colors
color_palette = [
"rgba(255, 99, 132, 1)", # Red
"rgba(54, 162, 235, 1)", # Blue
"rgba(255, 206, 86, 1)", # Yellow
"rgba(75, 192, 192, 1)", # Green
"rgba(153, 102, 255, 1)", # Purple
"rgba(255, 159, 64, 1)", # Orange
]
if num_colors > len(color_palette):
for i in range(num_colors - len(color_palette)):
color_palette.append(random_color_generator())
colors = []
for i in range(num_colors):
# color=random_color_generator()
colors.append(color_palette[i % len(color_palette)])
return colors
def get_key_instances(model, data_dict):
# Get all the models in the Django project
all_models = apps.get_models()
# Initialize a list to store related models include the function argument model as foreignkey
related_models = []
# Iterate through all models
for other_model in all_models:
# Iterate through fields of the model
for field in other_model._meta.fields:
# Check if the field is a ForeignKey and related to the function argument model
if isinstance(field, ForeignKey) and field.related_model == model:
related_models.append(other_model)
break
# Iterate through related models to filter instances
for related_model in related_models:
# Get all fields of the related model
related_model_fields = related_model._meta.get_fields()
# Iterate through fields to find ForeignKey fields
for field in related_model_fields:
if isinstance(field, ForeignKey):
# Get the related name and field name
related_name = field.related_query_name()
field_name = field.name
# Check if the related name exists in data_dict
if related_name in data_dict:
# Get the related_id from data_dict
related_id_list = data_dict[related_name]
related_id = int(related_id_list[0])
# Filter instances based on the field and related_id
filtered_instance = related_model.objects.filter(
**{field_name: related_id}
).first()
# Store the filtered instance back in data_dict
data_dict[related_name] = [str(filtered_instance)]
# Get all the fields in the argument model
model_fields = model._meta.get_fields()
foreign_key_field_names = [
field.name
for field in model_fields
if isinstance(field, ForeignKey or OneToOneField)
]
# Create a list of field names that are present in data_dict
present_foreign_key_field_names = [
key for key in foreign_key_field_names if key in data_dict
]
for field_name in present_foreign_key_field_names:
try:
# Get the integer value from data_dict for the field
field_value = int(data_dict[field_name][0])
# Get the related model of the ForeignKey field
related_model = model._meta.get_field(field_name).remote_field.model
# Get the instance of the related model using the field value
related_instance = related_model.objects.get(id=field_value)
# Update data_dict with the string representation of the instance
data_dict[field_name] = [str(related_instance)]
except (ObjectDoesNotExist, ValueError):
pass
# Create a list of field names that are ManyToManyField
many_to_many_field_names = [
field.name for field in model_fields if isinstance(field, ManyToManyField)
]
# Create a list of field names that are present in data_dict for ManyToManyFields
present_many_to_many_field_names = [
key for key in many_to_many_field_names if key in data_dict
]
for field_name in present_many_to_many_field_names:
try:
# Get the related model of the ManyToMany field
related_model = model._meta.get_field(field_name).remote_field.model
# Get a list of integer values from data_dict for the field
field_values = [int(value) for value in data_dict[field_name]]
# Filter instances of the related model based on the field values
related_instances = related_model.objects.filter(id__in=field_values)
# Update data_dict with the string representations of related instances
data_dict[field_name] = [str(instance) for instance in related_instances]
except (ObjectDoesNotExist, ValueError):
pass
nested_fields = [key for key in data_dict if "__" in key]
for key in nested_fields:
field_names = key.split("__")
field_values = data_dict[key]
if (
field_values != ["unknown"]
and field_values != ["true"]
and field_values != ["false"]
):
nested_instance = get_nested_instances(model, field_names, field_values)
if nested_instance is not None:
data_dict[key] = nested_instance
if 'csrfmiddlewaretoken' in data_dict:
del data_dict['csrfmiddlewaretoken']
keys_to_remove = [key for key, value in data_dict.items() if value == ['unknown']]
for key in keys_to_remove:
del data_dict[key]
return data_dict
def get_nested_instances(model, field_names, field_values):
try:
related_model = model
for field_name in field_names:
try:
related_field = related_model._meta.get_field(field_name)
except:
pass
try:
related_model = related_field.remote_field.model
except:
pass
field_values = [int(value) for value in field_values]
related_instances = related_model.objects.filter(id__in=field_values)
return [str(instance) for instance in related_instances]
except (ObjectDoesNotExist, ValueError):
return None