[Answered ]-Django select2 with autocomplete_fields to have a dynamic default value

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You can use a concept in Django called InlineModelAdmin [django-docs] and in your case, your admin.py module can be as below:

from django.contrib import admin
from your_app_name.models import Product, HeadFlowDataSet


class HeadFlowDatasetInline(admin.TabularInline):
    model = HeadFlowDataset
    extra = 1


class ProductAdmin(admin.ModelAdmin):
    list_display = (
        "pump_name",
        "main_model",
        "usage",
        "pump_type",
    )
    search_fields = (
        "pump_name",
        "main_model__model_name_fa",
        "usage__usage_name_fa",
        "pump_type__type_name",
    )
    fields = (
        "main_model",
        "usage",
        "sub_usage",
        "pump_type",
        "pump_name",
        "pump_image",
        "NPSH_diagram_image",
        "power_diagram_image",
        "max_head",
        "max_flow",
        "motor_ph",
        "motor_rpm",
        "pump_technical_datasheet_fa",
        "pump_technical_datasheet_en",
    )
    inlines = [HeadFlowDatasetInline]

    def save_model(self, request, obj, form, change):
        obj.created_by = request.user
        obj.last_updated_by = request.user
        obj.save()

    def save_formset(self, request, form, formset, change):
        instances = formset.save(commit=False)
        for instance in instances:
            instance.user = request.user
            instance.save()

With the above code snippet, you have an inline part with one set of HeadFlowDatasetobjects on each page of your Product models in your Django admin panel which can be added on need form that panel and with this approach, this issue will be resolved.

👤Javad

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