django-models

问题 I have a model that looks like this: models.py class BHA_List(models.Model): well = models.ForeignKey(WellInfo, 'CASCADE', related_name='bha_list') bha_number = models.CharField(max_length=100) class BHA_Drill_Bit(models.Model): bha_number = models.ForeignKey(BHA_List, 'CASCADE', related_name='bha_drill_bit') bit_type = models.CharField(max_length=111) class BHA_overall(models.Model): bha_number = models.ForeignKey(BHA_List, 'CASCADE', related_name='bha_overall') drill_str_name = models

问题 I have a model that looks like this: models.py class BHA_List(models.Model): well = models.ForeignKey(WellInfo, 'CASCADE', related_name='bha_list') bha_number = models.CharField(max_length=100) class BHA_Drill_Bit(models.Model): bha_number = models.ForeignKey(BHA_List, 'CASCADE', related_name='bha_drill_bit') bit_type = models.CharField(max_length=111) class BHA_overall(models.Model): bha_number = models.ForeignKey(BHA_List, 'CASCADE', related_name='bha_overall') drill_str_name = models

问题 Models class User(AbstractUser): pass class Report(Model): user = ForeignKey ( "User", related_name="reports" ) shared_doctors = ManyToManyField ( "User", symmetrical = False, related_name="shared_reports" ) I have more fields on the models, but I have omitted them in the interest of shortening the problem. Query User.objects.annotate( shared_reports_user = FilteredRelation( 'shared_reports', condition = Q(shared_reports__user=user) ) ).annotate( shared_reports_user_count = Count('shared

问题 I'm using the latest version of Django and DRF. But after running it I'm getting this error: class HStoreDescriptor(models.fields.subclassing.Creator): AttributeError: module 'django.db.models.fields' has no attribute 'subclassing' I'm not sure how to use HStoreField and create an extension using migration. This is my structure of the file. webhook10/ |-- tutorial/ | |-- slack/ | | |-- migrations/ | | | +-- __init__.py | | |-- __init__.py | | |-- admin.py | | |-- apps.py | | |-- models.py | |

问题 I need a search bar in my template on top of my table. The search bar should search based on any table parameter, and filter the enteries accordingly. I implemented the search bar using CSS classes and I get it as I wanted. Now here's the views.py code. def jobs(request): jobs = Jobb.objects.all() search_term = '' if 'search' in request.GET: search_term = request.GET['search'] jobs = jobs.filter(position__icontains=search_term) context = { 'jobs': jobs, 'search_term': search_term, 'job':

问题 I need a search bar in my template on top of my table. The search bar should search based on any table parameter, and filter the enteries accordingly. I implemented the search bar using CSS classes and I get it as I wanted. Now here's the views.py code. def jobs(request): jobs = Jobb.objects.all() search_term = '' if 'search' in request.GET: search_term = request.GET['search'] jobs = jobs.filter(position__icontains=search_term) context = { 'jobs': jobs, 'search_term': search_term, 'job':

问题 I am working on a design for some models in Django and wanted to get some advice. I have a model for teams, of which many users can be a part of. The users can also be members of many teams, but they cannot be members of the same team twice. There is also separate information I want to track for each team/user combo. On top of that, there will be a user who is an "admin" for each team, but each team may have only a single admin. I have some condensed data model definitions as follows: class

问题 I am working on a design for some models in Django and wanted to get some advice. I have a model for teams, of which many users can be a part of. The users can also be members of many teams, but they cannot be members of the same team twice. There is also separate information I want to track for each team/user combo. On top of that, there will be a user who is an "admin" for each team, but each team may have only a single admin. I have some condensed data model definitions as follows: class

问题 I need to get the total count of all contacts that belong to a group , but from within the model called batch .... This will help explain models (not shown in full) class Batch(models.Model): #FK group = models.ForeignKey(Group, null=True, blank=True) class Group(models.Model): name = models.CharField(max_length=60) class Contact(models.Model): first_name = models.CharField(max_length=60) group = models.ForeignKey(Group) So within batch I want to do something like this.... def get_contact

问题 I have two models i.e Starttime and Stoptime that store the start time and stop time respectively. Right now, each registered user will have multiple instances of the start and stop time, like so: Name Start_time Stop_time Bobby Dec. 31, 2019, 5:39 a.m Dec. 31, 2019, 5:50 a.m Jan. 01, 2020, 9:00 a.m Jan. 01, 2020, 18:00 a.m Jan. 02, 2020, 6:00 a.m Jan. 02, 2020, 19:00 a.m ... ... Tina Dec. 31, 2019, 9:00 a.m Dec. 31, 2019, 10:00 a.m Dec. 31, 2019, 12:00 p.m Dec. 31, 2019, 15:00 p.m Jan. 01,