Enable CSV export for the 4 main tables Organisations, Persons, Resources, Mountain ranges

app/admin.py

@@ -1,10 +1,28 @@
+from re import A
+from unicodedata import name
 from django.contrib import admin
 from django.utils.html import format_html
 from .models import *
 from django.forms import TextInput
 from django.conf import settings
+from django.http import HttpResponse
+import csv
 
+def download_csv(modeladmin, request, queryset):
+    name     =  queryset[0].__class__.__name__
+    response = HttpResponse()
+    response['Content-Disposition'] = "attachment; filename="+name+"_table.csv"
+    first_row = []
+    for i in queryset[0]._meta.__dict__.get("fields"):
+        temp = str(i).split('.')
+        first_row.append(temp[-1])
 
+    writer = csv.writer(response)
+    writer.writerow(first_row)
+    for dic in queryset.values():
+        temp_list   =    (list(dic.values()))
+        writer.writerow(temp_list)
+    return response
 class PeopleResourceInline(admin.TabularInline):
     autocomplete_fields = ['resource']
     model = PeopleResource
@@ -67,6 +85,8 @@ class PersonAdmin(admin.ModelAdmin):
     autocomplete_fields = ['organization']
     list_per_page = settings.ADMIN_LIST_PER_PAGE
     ordering = ['full_name']
+    actions = [download_csv]
+
 #    list_display_links = ['id']
 
 
@@ -91,6 +111,10 @@ class ResourcePeopleInline(admin.TabularInline):
     }
 
 
+
+
+
+
 class ResourceAdmin(admin.ModelAdmin):
     inlines = [
         ResourceKeywordInline,
@@ -130,6 +154,8 @@ class ResourceAdmin(admin.ModelAdmin):
         }),
     )
     list_per_page = settings.ADMIN_LIST_PER_PAGE
+    actions = [download_csv]
+
 
 
 class RangeNameTranslationInline(admin.TabularInline):
@@ -185,6 +211,7 @@ class RangeAdmin(admin.ModelAdmin):
     ordering = ['range_name']
     list_per_page = settings.ADMIN_LIST_PER_PAGE
 
+    actions = [download_csv]
 
 class PeopleOrganizationInline(admin.TabularInline):
     model = Person
@@ -225,6 +252,7 @@ class OrganizationAdmin(admin.ModelAdmin):
         })
     )
     ordering = ['organisation_english']
+    actions = [download_csv]
 
     def org_url(self, instance):
         return format_html('<a href="{0}" target="_blank">{1}</a>',