Add an action in admin for importing general types from CSV

1 files changed, 72 insertions, 5 deletions

diff --git a/ishtar_common/admin.py b/ishtar_common/admin.py
index f02a70d7a..9f8d2d809 100644
--- a/ishtar_common/admin.py
+++ b/ishtar_common/admin.py
@@ -20,27 +20,74 @@
 """
 Admin description
 """
+import csv
 
-from django import forms
 from django.conf import settings
 from django.contrib import admin
-from django.core.exceptions import ObjectDoesNotExist
-from django.utils.translation import ugettext_lazy as _
+from django.http import HttpResponseRedirect
+from django.shortcuts import render_to_response
+from django.template import RequestContext
+from django.template.defaultfilters import slugify
+
+from django import forms
 
 import models
 
+
+class ImportGenericForm(forms.Form):
+    _selected_action = forms.CharField(widget=forms.MultipleHiddenInput)
+    csv_file = forms.FileField(
+        "CSV file", help_text="Only unicode encoding is managed - convert your"
+        " file first")
+
+
+def gen_import_generic(self, request, queryset):
+    form = None
+
+    if 'apply' in request.POST:
+        form = ImportGenericForm(request.POST, request.FILES)
+
+        if form.is_valid():
+            csv_file = request.FILES['csv_file']
+            reader = csv.reader(csv_file)
+            idx = 0
+            for row in reader:
+                slug = slugify(row[0])
+                if self.model.objects.filter(txt_idx=slug).count():
+                    continue
+                obj, c = self.model.objects.get_or_create(
+                    label=row[0], txt_idx=slug)
+                if c:
+                    idx += 1
+            self.message_user(request, "Successfully added %d new items." % (
+                idx))
+            return HttpResponseRedirect(request.get_full_path())
+    if not form:
+        form = ImportGenericForm(
+            initial={'_selected_action':
+                     request.POST.getlist(admin.ACTION_CHECKBOX_NAME)})
+    return render_to_response(
+        'admin/import_from_csv.html', {'csv_form': form},
+        context_instance=RequestContext(request))
+
+gen_import_generic.short_description = "Import from a CSV file"
+
+
 class HistorizedObjectAdmin(admin.ModelAdmin):
     readonly_fields = ('history_modifier',)
+
     def save_model(self, request, obj, form, change):
         obj.history_modifier = request.user
         obj.save()
 
+
 class DepartmentAdmin(admin.ModelAdmin):
     list_display = ('number', 'label',)
     model = models.Department
 
 admin.site.register(models.Department, DepartmentAdmin)
 
+
 class OrganizationAdmin(HistorizedObjectAdmin):
     list_display = ('name', 'organization_type')
     list_filter = ("organization_type",)
@@ -49,6 +96,7 @@ class OrganizationAdmin(HistorizedObjectAdmin):
 
 admin.site.register(models.Organization, OrganizationAdmin)
 
+
 class PersonAdmin(HistorizedObjectAdmin):
     list_display = ('name', 'surname', 'raw_name', 'email')
     list_filter = ("person_types",)
@@ -57,8 +105,9 @@ class PersonAdmin(HistorizedObjectAdmin):
 
 admin.site.register(models.Person, PersonAdmin)
 
+
 class TownAdmin(admin.ModelAdmin):
-    list_display = ['name',]
+    list_display = ['name', ]
     search_fields = ['name']
     if settings.COUNTRY == 'fr':
         list_display += ['numero_insee', 'departement', ]
@@ -68,6 +117,7 @@ class TownAdmin(admin.ModelAdmin):
 
 admin.site.register(models.Town, TownAdmin)
 
+
 class AuthorAdmin(admin.ModelAdmin):
     list_display = ['person', 'author_type']
     list_filter = ("author_type",)
@@ -75,61 +125,78 @@ class AuthorAdmin(admin.ModelAdmin):
 
 admin.site.register(models.Author, AuthorAdmin)
 
+
 class PersonTypeAdmin(admin.ModelAdmin):
     model = models.PersonType
     filter_vertical = ('groups',)
 
 admin.site.register(models.PersonType, PersonTypeAdmin)
 
+
 class GlobalVarAdmin(admin.ModelAdmin):
     list_display = ['slug', 'description', 'value']
 admin.site.register(models.GlobalVar, GlobalVarAdmin)
 
+
 class GeneralTypeAdmin(admin.ModelAdmin):
     list_display = ['label', 'txt_idx', 'available']
+    actions = ['import_generic']
+    import_generic = gen_import_generic
 
-general_models = [models.OrganizationType, models.SourceType, models.AuthorType]
+
+general_models = [models.OrganizationType, models.SourceType,
+                  models.AuthorType]
 for model in general_models:
     admin.site.register(model, GeneralTypeAdmin)
 
+
 class ImporterDefaultValuesInline(admin.TabularInline):
     model = models.ImporterDefaultValues
 
+
 class ImporterDefaultAdmin(admin.ModelAdmin):
     list_display = ('importer_type', 'target')
     model = models.ImporterDefault
     inlines = (ImporterDefaultValuesInline,)
 admin.site.register(models.ImporterDefault, ImporterDefaultAdmin)
 
+
 class ImporterTypeAdmin(admin.ModelAdmin):
     list_display = ('name', 'associated_models', 'is_template')
 admin.site.register(models.ImporterType, ImporterTypeAdmin)
 
+
 class RegexpAdmin(admin.ModelAdmin):
     list_display = ('name', 'description', "regexp")
 admin.site.register(models.Regexp, RegexpAdmin)
 
+
 class ImporterDuplicateFieldInline(admin.TabularInline):
     model = models.ImporterDuplicateField
 
+
 class ImportTargetInline(admin.TabularInline):
     model = models.ImportTarget
 
+
 class ImporterColumnAdmin(admin.ModelAdmin):
     list_display = ('importer_type', 'col_number', 'description', 'required')
     list_filter = ('importer_type',)
     inlines = (ImporterDuplicateFieldInline, ImportTargetInline)
 admin.site.register(models.ImporterColumn, ImporterColumnAdmin)
 
+
 class FormaterTypeAdmin(admin.ModelAdmin):
     list_display = ('formater_type', 'options')
 admin.site.register(models.FormaterType, FormaterTypeAdmin)
 
+
 class ImportAdmin(admin.ModelAdmin):
     list_display = ('importer_type', 'imported_file', 'user', 'state',
                     'creation_date')
 admin.site.register(models.Import, ImportAdmin)
 
+
 class TargetKeyAdmin(admin.ModelAdmin):
     list_display = ('target', 'key', 'value', 'is_set')
     list_filter = ("is_set",)