##from __future__ import unicode_literals from enum import Enum from datetime import datetime, timedelta from typing import List from django.contrib.auth.models import AbstractUser from django.db import models from django.db.models import Q from django.core.validators import MaxValueValidator, MinValueValidator from model_utils import Choices ''' NOT USED - to be removed class PyrosState(Enum): START = 'Starting' PA = 'Passive' INI = "INIT" STAND = "Standby" SCHED_START = 'Scheduler startup' SCHED = 'Scheduler' SCHED_CLOSE = 'Scheduler closing' ''' """ STYLE RULES =========== https://simpleisbetterthancomplex.com/tips/2018/02/10/django-tip-22-designing-better-models.html https://steelkiwi.com/blog/best-practices-working-django-models-python/ - Model name => singular Call it Company instead of Companies. A model definition is the representation of a single object (the object in this example is a company), and not a collection of companies The model definition is a class, so always use CapWords convention (no underscores) E.g. User, Permission, ContentType, etc. - For the model’s attributes use snake_case. E.g. first_name, last_name, etc - Blank and Null Fields (https://simpleisbetterthancomplex.com/tips/2016/07/25/django-tip-8-blank-or-null.html) - Null: It is database-related. Defines if a given database column will accept null values or not. - Blank: It is validation-related. It will be used during forms validation, when calling form.is_valid(). Do not use null=True for text-based fields that are optional. Otherwise, you will end up having two possible values for “no data”, that is: None and an empty string. Having two possible values for “no data” is redundant. The Django convention is to use the empty string, not NULL. Example: # The default values of `null` and `blank` are `False`. class Person(models.Model): name = models.CharField(max_length=255) # Mandatory bio = models.TextField(max_length=500, blank=True) # Optional (don't put null=True) birth_date = models.DateField(null=True, blank=True) # Optional (here you may add null=True) The default values of null and blank are False. Special case, when you need to accept NULL values for a BooleanField, use NullBooleanField instead. - Choices : you can use Choices from the model_utils library. Take model Article, for instance: from model_utils import Choices class Article(models.Model): STATUSES = Choices( (0, 'draft', _('draft')), (1, 'published', _('published')) ) status = models.IntegerField(choices=STATUSES, default=STATUSES.draft) - Reverse Relationships - related_name : Rule of thumb: if you are not sure what would be the related_name, use the plural of the model holding the ForeignKey. ex: class Company: name = models.CharField(max_length=30) class Employee: first_name = models.CharField(max_length=30) last_name = models.CharField(max_length=30) company = models.ForeignKey(Company, on_delete=models.CASCADE, related_name='employees') usage: google = Company.objects.get(name='Google') google.employees.all() You can also use the reverse relationship to modify the company field on the Employee instances: vitor = Employee.objects.get(first_name='Vitor') google = Company.objects.get(name='Google') google.employees.add(vitor) - related_query_name : This kind of relationship also applies to query filters. For example, if I wanted to list all companies that employs people named ‘Vitor’, I could do the following: companies = Company.objects.filter(employee__first_name='Vitor') If you want to customize the name of this relationship, here is how we do it: class Employee: first_name = models.CharField(max_length=30) last_name = models.CharField(max_length=30) company = models.ForeignKey( Company, on_delete=models.CASCADE, related_name='employees', related_query_name='person' ) Then the usage would be: companies = Company.objects.filter(person__first_name='Vitor') To use it consistently, related_name goes as plural and related_query_name goes as singular. GENERAL EXAMPLE ======= from django.db import models from django.urls import reverse class Company(models.Model): # CHOICES PUBLIC_LIMITED_COMPANY = 'PLC' PRIVATE_COMPANY_LIMITED = 'LTD' LIMITED_LIABILITY_PARTNERSHIP = 'LLP' COMPANY_TYPE_CHOICES = ( (PUBLIC_LIMITED_COMPANY, 'Public limited company'), (PRIVATE_COMPANY_LIMITED, 'Private company limited by shares'), (LIMITED_LIABILITY_PARTNERSHIP, 'Limited liability partnership'), ) # DATABASE FIELDS name = models.CharField('name', max_length=30) vat_identification_number = models.CharField('VAT', max_length=20) company_type = models.CharField('type', max_length=3, choices=COMPANY_TYPE_CHOICES) # MANAGERS objects = models.Manager() limited_companies = LimitedCompanyManager() # META CLASS class Meta: verbose_name = 'company' verbose_name_plural = 'companies' # TO STRING METHOD def __str__(self): return self.name # SAVE METHOD def save(self, *args, **kwargs): do_something() super().save(*args, **kwargs) # Call the "real" save() method. do_something_else() # ABSOLUTE URL METHOD def get_absolute_url(self): return reverse('company_details', kwargs={'pk': self.id}) # OTHER METHODS def process_invoices(self): do_something() """ # --- # --- Utility functions # --- def get_or_create_unique_row_from_model(model:models.Model): return model.objects.get(id=1) if model.objects.exists() else model.objects.create(id=1) """ ------------------------ BASE MODEL CLASSES ------------------------ """ class Device(models.Model): name = models.CharField(max_length=45, blank=True, null=True) desc = models.TextField(blank=True, null=True) created = models.DateTimeField(blank=True, null=True, auto_now_add=True) updated = models.DateTimeField(blank=True, null=True, auto_now=True) is_online = models.BooleanField(default=False) status = models.CharField(max_length=11, blank=True, null=True) maintenance_date = models.DateTimeField(blank=True, null=True) class Meta: abstract = True def __str__(self): return (str(self.name)) class Request(models.Model): pyros_user = models.ForeignKey( 'PyrosUser', on_delete=models.DO_NOTHING, related_name="requests") scientific_program = models.ForeignKey( 'ScientificProgram', on_delete=models.DO_NOTHING, related_name="requests", blank=True, null=True) name = models.CharField(max_length=45, blank=True, null=True) desc = models.TextField(blank=True, null=True) created = models.DateTimeField(blank=True, null=True, auto_now_add=True) updated = models.DateTimeField(blank=True, null=True, auto_now=True) is_alert = models.BooleanField(default=False) target_type = models.CharField(max_length=8, blank=True, null=True) status = models.CharField(max_length=10, blank=True, null=True) autodeposit = models.BooleanField(default=False) checkpoint = models.CharField(max_length=45, blank=True, null=True) flag = models.CharField(max_length=45, blank=True, null=True) complete = models.BooleanField(default=False) submitted = models.BooleanField(default=False) class Meta: managed = True db_table = 'request' def __str__(self): return (str(self.name)) """ ------------------------ OTHER MODEL CLASSES ------------------------ """ class AgentDeviceTelescopeStatus(models.Model): #created = models.DateTimeField('status date', blank=True, null=True, auto_now_add=True) updated = models.DateTimeField('status date', blank=True, null=True, auto_now=True) radec = models.CharField('agent mode', max_length=30, blank=True) class Meta: managed = True db_table = 'agent_device_telescope_status' #verbose_name = "agent survey" #verbose_name_plural = "agents survey" """ def __str__(self): return (f"Agent {self.name} at {self.updated} in mode {self.mode} and status {self.status}") """ class AgentSurvey(models.Model): """ | id | name | created | updated | validity_duration (default=1mn) | mode (active/idle) | status (launch/init/loop/exit/...) | """ # Statuses #STATUSES = Choices('new', 'verified', 'published') STATUS_LAUNCH = "LAUNCHED" STATUS_INIT = "INITIALIZING" STATUS_MAIN_LOOP = "IN_MAIN_LOOP" STATUS_PROCESS_LOOP = "IN_PROCESS_LOOP" STATUS_EXIT = "EXITING" # Modes MODE_ACTIVE = "ACTIVE" MODE_IDLE = "IDLE" MODE_CHOICES = ( (MODE_ACTIVE, 'Active mode'), (MODE_IDLE, 'Idle mode'), ) STATUS_CHOICES = ( (STATUS_LAUNCH, "LAUNCHED"), (STATUS_INIT, "INITIALIZING"), (STATUS_MAIN_LOOP, "IN_MAIN_LOOP"), (STATUS_PROCESS_LOOP, "IN_PROCESS_LOOP"), (STATUS_EXIT, "EXITING"), ) name = models.CharField(max_length=50, unique=True) #name = models.CharField(max_length=50, blank=True, null=True, unique=True) #created = models.DateTimeField(blank=True, null=True, auto_now_add=True) created = models.DateTimeField(blank=True, null=True, auto_now_add=True) updated = models.DateTimeField(blank=True, null=True, auto_now=True) validity_duration = models.PositiveIntegerField(default=90) #validity_duration = models.DurationField(default=90) mode = models.CharField('agent mode', max_length=15, blank=True, choices=MODE_CHOICES) status = models.CharField(max_length=15, blank=True, choices=STATUS_CHOICES) class Meta: managed = True db_table = 'agent_survey' #verbose_name = "agent survey" #verbose_name_plural = "agents survey" def __str__(self): return (f"Agent {self.name} at {self.updated} in mode {self.mode} and status {self.status}") class Album(models.Model): sequence = models.ForeignKey( 'Sequence', on_delete=models.CASCADE, related_name="albums") detector = models.ForeignKey( 'Detector', models.DO_NOTHING, related_name="albums", blank=True, null=True) name = models.CharField(max_length=45, blank=True, null=True) desc = models.TextField(blank=True, null=True) created = models.DateTimeField(blank=True, null=True, auto_now_add=True) updated = models.DateTimeField(blank=True, null=True, auto_now=True) complete = models.BooleanField(default=False) class Meta: managed = True db_table = 'album' #verbose_name_plural = "Albums" def __str__(self): return (str(self.name)) class Alert(Request): request = models.OneToOneField('Request', on_delete=models.CASCADE, default='', parent_link=True) strategyobs = models.ForeignKey( 'StrategyObs', models.DO_NOTHING, related_name="alerts", blank=True, null=True) voevent_file = models.CharField(max_length=45, blank=True, null=True) author = models.CharField(max_length=45, blank=True, null=True) burst_jd = models.DecimalField(max_digits=15, decimal_places=8, blank=True, null=True) burst_ra = models.FloatField(max_length=45, blank=True, null=True) burst_dec = models.FloatField(max_length=45, blank=True, null=True) astro_coord_system = models.CharField(max_length=45, blank=True, null=True) jd_send = models.DecimalField(max_digits=15, decimal_places=8, blank=True, null=True) jd_received = models.DecimalField(max_digits=15, decimal_places=8, blank=True, null=True) trig_id = models.IntegerField(blank=True, null=True) error_radius = models.FloatField(max_length=45, blank=True, null=True) defly_not_grb = models.BooleanField(default=False) editor = models.CharField(max_length=45, blank=True, null=True) soln_status = models.CharField(max_length=45, blank=True, null=True) pkt_ser_num = models.IntegerField(blank=True, null=True) class Meta: managed = True db_table = 'alert' def __str__(self): return str(self.trig_id) def request_name(self): return self.__str__() request_name.short_description = "Name" class Command(models.Model): """ | id | sender | recipient | name | validity_duration (default=60) | s_deposit_time | r_read_time See models_Command_state_diag.pu for PlantUML state diagram """ # -------------- Command CONSTANTS -------------- # Receiver status codes """ RSCODE_RUNNING = -1 # en cours d’exécution => une fois la cde lue RSCODE_EXECUTED = 0 # cde exécutée => simulé par un sleep(3) dans AgentX.core_process()) RSCODE_PENDING = 1 # cde en attente d'exécution RSCODE_SKIPPED = 2 # cde ignorée (je suis idle… et j’ai ignoré cette commande, et je passe à la cde suivante) RSCODE_OUTOFDATE = 3 # cde périmée CMD_STATUS_CODES = ( RSCODE_RUNNING, # en cours d’exécution => une fois la cde lue RSCODE_EXECUTED, # cde exécutée => simulé par un sleep(3) dans AgentX.core_process()) RSCODE_PENDING, # cde en attente d'exécution RSCODE_SKIPPED, # cde ignorée (je suis idle… et j’ai ignoré cette commande, et je passe à la cde suivante) RSCODE_OUTOFDATE, # cde périmée ) """ CMD_STATUS_CODES = Choices( "CMD_RUNNING", # en cours d’exécution => une fois la cde lue "CMD_EXECUTED", # cde exécutée => simulé par un sleep(3) dans AgentX.core_process()) "CMD_PENDING", # cde en attente d'exécution "CMD_SKIPPED", # cde ignorée (je suis idle… et j’ai ignoré cette commande, et je passe à la cde suivante) "CMD_KILLED", # cde ignorée (je suis idle… et j’ai ignoré cette commande, et je passe à la cde suivante) "CMD_OUTOFDATE" # cde périmée ) GENERIC_COMMANDS = [ "eval", "go_idle", "go_active", # Commands executed in priority (even if other pending commands exist) "flush_commands", "abort", "exit", "restart_init" ] #COMMANDS_PEREMPTION_HOURS = 48 COMMANDS_PEREMPTION_HOURS = 60/60 COMMANDS_VALIDITY_DURATION_SEC_DEFAULT = 30 # -------------- Command FIELDS -------------- #sender = models.CharField(max_length=50, blank=True, null=True, unique=True) # Sender and Recipient agents sender = models.CharField(max_length=50, help_text='sender agent name', null=False) recipient = models.CharField(max_length=50, help_text='recipient agent name', null=False) name = models.CharField(max_length=400, help_text='command name', null=False) validity_duration = models.PositiveIntegerField('(in sec)', default=COMMANDS_VALIDITY_DURATION_SEC_DEFAULT) #state = models.CharField(choices = CMD_STATUS_CODES, default=CMD_STATUS_CODES.CMD_PENDING, max_length=20) state = models.CharField(choices = CMD_STATUS_CODES, default=CMD_STATUS_CODES.CMD_PENDING, max_length=20) #state = models.IntegerField(choices=CMD_STATUS_CODES, default=RSCODE_PENDING) # TODO: maybe à mettre au format json (key:value) result = models.CharField(max_length=400, blank=True) # on creation: (AUTO) Automatically set at table line creation (line created by the sender) s_deposit_time = models.DateTimeField(blank=True, null=True, auto_now_add=True) # - on reading: r_read_time = models.DateTimeField(null=True) # - on launching: r_start_time = models.DateTimeField(null=True) # - on skipping (because idle), expiration (because too old), kill, or end of execution end_time = models.DateTimeField(null=True) # Other agent (than sender or recipient) that set this command to KILLED or EXPIRED killer_agent_name = models.CharField(max_length=50, help_text='sender agent name', null=True) class Meta: managed = True db_table = 'command' #verbose_name = "agent survey" #verbose_name_plural = "agents survey" # -------------- Command CLASS (static) METHODS -------------- """ @classmethod def send(cls, cmd:Command): cls.objects.create(sender=cmd.name, recipient=cmd.recipient, name=cmd.name) """ @classmethod def send_command(cls, from_agent, to_agent, cmd_name, cmd_args=None): """ ex: send("AgentA",“AgentB”,"EVAL”,“3+4”) """ if cmd_args: cmd_name += ' '+cmd_args #Command.objects.create(sender=self.name, recipient=r_agent, name=cmd_name) cmd = cls(sender=from_agent, recipient=to_agent, name=cmd_name) cmd.send() #cmd.set_as_pending() #cmd.save() return cmd @classmethod def get_peremption_date_from_now(cls): return datetime.utcnow().astimezone() - timedelta(hours = cls.COMMANDS_PEREMPTION_HOURS) @classmethod def delete_commands_with_running_status_for_agent(cls, agent_name): print("Delete (false) 'running' command if exists:") running_commands = cls.objects.filter( # only commands for agent agent_name recipient = agent_name, # only running commands state = cls.CMD_STATUS_CODES.CMD_RUNNING, # only not expired commands #s_deposit_time__gte = cls.get_peremption_date_from_now(), ) if running_commands: Command.show_commands(running_commands) running_commands.delete() else: print("") @classmethod def delete_pending_commands_for_agent(cls, agent_name): """ Delete all pending commands sent to agent_name, except very recent commands. This (exception) is to avoid a "data race" where for example agentB is executing a "flush" command while agentA is sending command to agentB... : - agentB will then delete the command just sent by agentA - agentA will check regularly the status of its sent command, and this will crash as this command exists no more !! """ print("Delete all pending command(s) if exists (except very recent ones):") now_minus_2sec = datetime.utcnow().astimezone() - timedelta(seconds = 2) #print("now_minus_2sec", now_minus_2sec) pending_commands = cls.objects.filter( # only commands for agent agent_name recipient = agent_name, # only running commands state = cls.CMD_STATUS_CODES.CMD_PENDING, # except very recent commands : take only commands that are more than 2 sec old s_deposit_time__lt = now_minus_2sec ) if pending_commands: Command.show_commands(pending_commands) pending_commands.delete() else: print("") @classmethod def get_pending_and_running_commands_for_agent(cls, agent_name): #print("peremption date", COMMAND_PEREMPTION_DATE_FROM_NOW) return cls.objects.filter( # only pending commands # but also including the currently running command Q(state = cls.CMD_STATUS_CODES.CMD_PENDING) | Q(state = cls.CMD_STATUS_CODES.CMD_RUNNING), # only commands for agent agent_name recipient = agent_name, # only not expired commands #s_deposit_time__gte = cls.get_peremption_date_from_now(), ).order_by("s_deposit_time") @classmethod def get_commands_sent_to_agent(cls, agent_name): return cls.objects.filter(recipient=agent_name) @classmethod def get_commands_sent_by_agent(cls, agent_name): return cls.objects.filter(sender=agent_name) @classmethod def get_last_N_commands_sent_to_agent(cls, agent_name, N): #filter(since=since) #return cls.objects.all()[:nb_cmds] #commands = cls.objects.filter(recipient = agent_name).order_by('-id')[:N] commands = cls.get_commands_sent_to_agent(agent_name).order_by('-id')[:N] return list(reversed(commands)) @classmethod def get_last_N_commands_sent_by_agent(cls, agent_name, N): #filter(since=since) #return cls.objects.all()[:nb_cmds] #commands = cls.objects.filter(recipient = agent_name).order_by('-id')[:N] commands = cls.get_commands_sent_by_agent(agent_name).order_by('-id')[:N] return list(reversed(commands)) @classmethod def purge_old_commands_sent_to_agent(cls, agent_name): """ Delete commands (which agent_name is recipient of) older than COMMANDS_PEREMPTION_HOURS (like 48h) ATTENTION !!! EXCEPT the RUNNING command !!! NB: datetime.utcnow() is equivalent to datetime.now(timezone.utc) """ print(f"(Looking for commands sent to me that are not executing and older than {cls.COMMANDS_PEREMPTION_HOURS} hour(s))") #COMMAND_PEREMPTION_DATE_FROM_NOW = datetime.utcnow() - timedelta(hours = cls.COMMANDS_PEREMPTION_HOURS) #print("peremption date", COMMAND_PEREMPTION_DATE_FROM_NOW) old_commands = cls.objects.filter( # only commands for agent agent_name recipient = agent_name, # only expired commands s_deposit_time__lt = cls.get_peremption_date_from_now(), ).exclude( state = cls.CMD_STATUS_CODES.CMD_RUNNING ) if old_commands.exists(): print("Found old commands to delete:") #for cmd in old_commands: print(cmd) cls.show_commands(old_commands) old_commands.delete() else: print("") @classmethod #def show_commands(cls, commands:models.query): def show_commands(cls, commands:list): #def show_commands(cls, commands:List[Commmand]): #if not commands.exists(): print("") commands = list(commands) if len(commands) == 0: print("") for cmd in commands: print("-", cmd) # -------------- Command INSTANCE METHODS -------------- def __str__(self): return (f"Commmand '{self.name}' ({self.state}) sent by agent {self.sender} to agent {self.recipient} at {self.s_deposit_time}") # --- BOOLEAN (test) functions --- def send(self): #self.save() self.set_as_pending() def is_generic(self): """ Is this a generic command ? It is the case if command is of style "go_idle" or "go_active" or "stop"... """ name = self.name if " " in name: name,args = name.split() return name in self.GENERIC_COMMANDS #"CMD_OUTOFDATE" # cde périmée def is_read(self): return self.r_read_time is not None def is_pending(self): return self.state == self.CMD_STATUS_CODES.CMD_PENDING def is_running(self): #return (datetime.utcnow() - self.s_deposit_time) > timedelta(seconds = self.validity_duration) return self.state == self.CMD_STATUS_CODES.CMD_RUNNING def is_executed(self): return self.state == self.CMD_STATUS_CODES.CMD_EXECUTED def is_skipped(self): return self.state == self.CMD_STATUS_CODES.CMD_SKIPPED def is_killed(self): return self.state == self.CMD_STATUS_CODES.CMD_KILLED def is_expired(self): #return (datetime.utcnow() - self.s_deposit_time) > timedelta(seconds = self.validity_duration) return (datetime.utcnow().astimezone() - self.s_deposit_time) > timedelta(seconds = self.validity_duration) """ elapsed_time = cmd.r_read_time - cmd.s_deposit_time max_time = timedelta(seconds = cmd.validity_duration) print(f"Elapsed time is {elapsed_time}, (max is {max_time})") if elapsed_time > max_time: """ # --- GETTERS/SETTERS functions --- def get_result(self): return self.result def get_updated_result(self): self.refresh_from_db() return self.result def set_result(self, result:str): self.result = result self.save() def set_read_time(self): self.r_read_time = datetime.utcnow().astimezone() # Optimization: update only 1 field self.save(update_fields=["r_read_time"]) def set_as_processed(self): print(f"- Set command {self.name} as processed") self.set_state_to(self.CMD_STATUS_CODES.CMD_EXECUTED) #print(self) """ self.state = self.CMD_STATUS_CODES.CMD_EXECUTED self.r_processed_time = datetime.utcnow().astimezone() self.save() """ # Optimization: update the related fields, but does not work, why ? ##self.save(update_fields=["state", "r_processed_time"]) def set_as_outofdate(self): print(f"- Set this command as expired (older than its validity duration of {self.validity_duration}s): {self}") self.set_state_to(self.CMD_STATUS_CODES.CMD_OUTOFDATE) def set_as_pending(self): self.set_state_to(self.CMD_STATUS_CODES.CMD_PENDING) def set_as_skipped(self): self.set_state_to(self.CMD_STATUS_CODES.CMD_SKIPPED) def set_as_killed_by(self, author_agent:str): print(f"- Set command {self.name} as killed") #print(f"- Set this command as killed: {self}") self.set_state_to(self.CMD_STATUS_CODES.CMD_KILLED, author_agent) def set_as_running(self): print(f"- Set command {self.name} as running") self.set_state_to(self.CMD_STATUS_CODES.CMD_RUNNING) ''' def set_as_executed(self): self.set_state_to(self.CMD_STATUS_CODES.CMD_EXECUTED) ''' def set_state_to(self, status:str, author_agent_name:str=None): now_time = datetime.utcnow().astimezone() if status in (self.CMD_STATUS_CODES.CMD_RUNNING, self.CMD_STATUS_CODES.CMD_SKIPPED, self.CMD_STATUS_CODES.CMD_OUTOFDATE): assert self.is_pending() if status == self.CMD_STATUS_CODES.CMD_RUNNING: self.r_start_time = now_time elif status in (self.CMD_STATUS_CODES.CMD_SKIPPED): self.end_time = now_time # EXPIRED elif status == self.CMD_STATUS_CODES.CMD_OUTOFDATE: self.end_time = now_time self.killer_agent_name = author_agent_name elif status in (self.CMD_STATUS_CODES.CMD_EXECUTED, self.CMD_STATUS_CODES.CMD_KILLED): assert self.is_running() self.end_time = now_time if status == self.CMD_STATUS_CODES.CMD_KILLED: self.killer_agent_name = author_agent_name # Update command status self.state = status self.save() # Optimization, but does not work, why ?... ##self.save(update_fields=["state"]) class Config(models.Model): PYROS_STATE = ["Starting", "Passive", "Standby", "Remote", "Startup", "Scheduler", "Closing" ] id = models.IntegerField(default='1', primary_key=True) #latitude = models.FloatField(default=1) latitude = models.DecimalField( max_digits=4, decimal_places=2, default=1, validators=[ MaxValueValidator(90), MinValueValidator(-90) ] ) local_time_zone = models.FloatField(default=1) #longitude = models.FloatField(default=1) longitude = models.DecimalField( max_digits=5, decimal_places=2, default=1, validators=[ MaxValueValidator(360), MinValueValidator(-360) ] ) altitude = models.FloatField(default=1) horizon_line = models.FloatField(default=1) row_data_save_frequency = models.IntegerField(default='300') request_frequency = models.IntegerField(default='300') analysed_data_save = models.IntegerField(default='300') telescope_ip_address = models.CharField(max_length=45, default="127.0.0.1") camera_ip_address = models.CharField(max_length=45, default="127.0.0.1") plc_ip_address = models.CharField(max_length=45, default="127.0.0.1") # TODO: changer ça, c'est pas clair du tout... # True = mode Scheduler-standby, False = mode Remote !!!! global_mode = models.BooleanField(default='True') ack = models.BooleanField(default='False') bypass = models.BooleanField(default='True') lock = models.BooleanField(default='False') pyros_state = models.CharField(max_length=25, default=PYROS_STATE[0]) force_passive_mode = models.BooleanField(default='False') plc_timeout_seconds = models.PositiveIntegerField(default=60) majordome_state = models.CharField(max_length=25, default="") ntc = models.BooleanField(default='False') majordome_restarted = models.BooleanField(default='False') class Meta: managed = True db_table = 'config' verbose_name_plural = "Config" def __str__(self): return (str(self.__dict__)) class Country(models.Model): name = models.CharField(max_length=45, blank=True, null=True) desc = models.TextField(blank=True, null=True) quota = models.FloatField(blank=True, null=True) class Meta: managed = True db_table = 'country' verbose_name_plural = "Countries" def __str__(self): return (str(self.name)) class Detector(Device): VIS = "Visible camera" NIR = "Cagire" telescope = models.ForeignKey( 'Telescope', models.DO_NOTHING, related_name="detectors") nb_photo_x = models.IntegerField(blank=True, null=True) nb_photo_y = models.IntegerField(blank=True, null=True) photo_size_x = models.IntegerField(blank=True, null=True) photo_size_y = models.IntegerField(blank=True, null=True) has_shutter = models.BooleanField(default=False) equivalent_foc_len = models.CharField(max_length=45, blank=True, null=True) acq_start = models.DateTimeField(blank=True, null=True) acq_stop = models.DateTimeField(blank=True, null=True) check_temp = models.FloatField(blank=True, null=True) gain = models.FloatField(blank=True, null=True) readout_noise = models.FloatField(blank=True, null=True) readout_time = models.FloatField(blank=True, null=True) idcam_readout_mode = models.IntegerField(blank=True, null=True) class Meta: managed = True db_table = 'detector' def __str__(self): return str(self.name) def device_name(self): return self.__str__() device_name.short_description = "Name" class Dome(Device): DOME = "Dome" open = models.BooleanField(default=False, blank=True) class Meta: managed = True db_table = 'dome' def __str__(self): return str(self.name) def device_name(self): return self.__str__() device_name.short_description = "Name" class Filter(Device): VIS_FILTER_1 = "First visible filter" VIS_FILTER_2 = "Second visible filter" NIR_FILTER_1 = "First infrared filter" NIR_FILTER_2 = "Second infrared filter" filter_wheel = models.ForeignKey( "FilterWheel", models.DO_NOTHING, related_name="filters", blank=True, null=True) category = models.CharField(max_length=1, blank=True, null=True) transmission_curve_doc = models.CharField( max_length=45, blank=True, null=True) class Meta: managed = True db_table = 'filter' def __str__(self): return (str(self.name)) def device_name(self): return self.__str__() device_name.short_description = "Name" class FilterWheel(Device): detector = models.OneToOneField(Detector, on_delete=models.CASCADE, related_name="filter_wheel", blank=True, null=True) class Meta: managed = True db_table = 'filter_wheel' def __str__(self): return (str(self.name)) def device_name(self): return self.__str__() device_name.short_description = "Name" class Image(models.Model): plan = models.ForeignKey('Plan', on_delete=models.CASCADE, related_name="images") nrtanalysis = models.ForeignKey( 'NrtAnalysis', models.DO_NOTHING, blank=True, null=True, related_name="images") name = models.CharField(max_length=45, blank=True, null=True) desc = models.TextField(blank=True, null=True) created = models.DateTimeField(blank=True, null=True, auto_now_add=True) updated = models.DateTimeField(blank=True, null=True, auto_now=True) date_from_gps = models.CharField(max_length=45, blank=True, null=True) level = models.IntegerField(blank=True, null=True) type = models.CharField(max_length=5, blank=True, null=True) quality = models.CharField(max_length=45, blank=True, null=True) flaggps = models.CharField(max_length=45, blank=True, null=True) exposure = models.CharField(max_length=45, blank=True, null=True) tempext = models.CharField(max_length=45, blank=True, null=True) pressure = models.CharField(max_length=45, blank=True, null=True) humidext = models.CharField(max_length=45, blank=True, null=True) wind = models.CharField(max_length=45, blank=True, null=True) wind_dir = models.CharField(max_length=45, blank=True, null=True) dwnimg = models.CharField(max_length=45, blank=True, null=True) dwncata = models.CharField(max_length=45, blank=True, null=True) dwn = models.CharField(max_length=45, blank=True, null=True) level0_fits_name = models.CharField(max_length=45, blank=True, null=True) level1a_fits_name = models.CharField(max_length=45, blank=True, null=True) level1b_fits_name = models.CharField(max_length=45, blank=True, null=True) class Meta: managed = True db_table = 'image' def __str__(self): return (str(self.name)) class Log(models.Model): agent = models.CharField(max_length=45, blank=True, null=True) created = models.DateTimeField(blank=True, null=True, auto_now_add=True) message = models.TextField(blank=True, null=True) class Meta: managed = True db_table = 'log' def __str__(self): return (str(self.agent)) class NrtAnalysis(models.Model): name = models.CharField(max_length=45, blank=True, null=True) desc = models.TextField(blank=True, null=True) created = models.DateTimeField(blank=True, null=True, auto_now_add=True) updated = models.DateTimeField(blank=True, null=True, auto_now=True) analysis = models.TextField(blank=True, null=True) class Meta: managed = True db_table = 'nrtanalysis' verbose_name_plural = "Nrt analyzes" def __str__(self): return (str(self.name)) class Plan(models.Model): album = models.ForeignKey(Album, on_delete=models.CASCADE, related_name="plans") filter = models.ForeignKey(Filter, models.DO_NOTHING, related_name="plans", blank=True, null=True) name = models.CharField(max_length=45, blank=True, null=True) desc = models.CharField(max_length=45, blank=True, null=True) created = models.DateTimeField(blank=True, null=True, auto_now_add=True) updated = models.DateTimeField(blank=True, null=True, auto_now=True) duration = models.FloatField(default=0, blank=True, null=True) position = models.CharField(max_length=45, blank=True, null=True) exposure_time = models.FloatField(blank=True, null=True) nb_images = models.IntegerField(blank=True, null=True) dithering = models.BooleanField(default=False) complete = models.BooleanField(default=False) class Meta: managed = True db_table = 'plan' def __str__(self): return (str(self.name)) class PlcDeviceStatus(models.Model): device = models.ForeignKey('PlcDevice', on_delete=models.CASCADE, related_name='current_status') created = models.DateTimeField(auto_now_add=True, editable=False, blank=True) outside_temp = models.DecimalField(max_digits=15, decimal_places=8, blank=True, null=True) outside_temp_unit = models.CharField(max_length=45, blank=True, null=True) outside_humidity = models.DecimalField(max_digits=15, decimal_places=8, blank=True, null=True) outside_humidity_unit = models.CharField(max_length=45, blank=True, null=True) pressure = models.DecimalField(max_digits=15, decimal_places=8, blank=True, null=True) pressure_unit = models.CharField(max_length=45, blank=True, null=True) rain_rate = models.DecimalField(max_digits=15, decimal_places=8, blank=True, null=True) rain_rate_unit = models.CharField(max_length=45, blank=True, null=True) wind_speed = models.DecimalField(max_digits=15, decimal_places=8, blank=True, null=True) wind_speed_unit = models.CharField(max_length=45, blank=True, null=True) wind_dir = models.DecimalField(max_digits=15, decimal_places=8, blank=True, null=True) wind_dir_unit = models.CharField(max_length=45, blank=True, null=True) dew_point = models.DecimalField(max_digits=15, decimal_places=8, blank=True, null=True) dew_point_unit = models.CharField(max_length=45, blank=True, null=True) analog = models.DecimalField(max_digits=15, decimal_places=8, blank=True, null=True) analog_unit = models.CharField(max_length=45, blank=True, null=True) digital = models.DecimalField(max_digits=15, decimal_places=8, blank=True, null=True) digital_unit = models.CharField(max_length=45, blank=True, null=True) inside_temp = models.DecimalField(max_digits=15, decimal_places=8, blank=True, null=True) inside_temp_unit = models.CharField(max_length=45, blank=True, null=True) inside_humidity = models.DecimalField(max_digits=15, decimal_places=8, blank=True, null=True) inside_humidity_unit = models.CharField(max_length=45, blank=True, null=True) wind_dir_cardinal = models.CharField(max_length=45, blank=True, null=True) wind_dir_cardinal_unit = models.CharField(max_length=45, blank=True, null=True) sensor_temperature = models.DecimalField(max_digits=15, decimal_places=8, blank=True, null=True) sensor_temperature_unit = models.CharField(max_length=45, blank=True, null=True) sky_temperature = models.DecimalField(max_digits=15, decimal_places=8, blank=True, null=True) sky_temperature_unit = models.CharField(max_length=45, blank=True, null=True) status = models.CharField(max_length=45, blank=True, null=True) current = models.DecimalField(max_digits=15, decimal_places=8, blank=True, null=True) current_unit = models.CharField(max_length=45, blank=True, null=True) is_safe = models.BooleanField(default=True) plc_mode = models.CharField(max_length=4, null=True) lights = models.CharField(max_length=3, null=True) shutters = models.CharField(max_length=5, null=True) class Meta: managed = True db_table = 'plc_devices_status' def __str__(self): return (str(self.__dict__)) ''' TODO : This function is Ugly, we should change this with a function pointer array and setters getters for each attribute ''' def setValue(self, key, value, unit=""): if key == "Temperature_outside": self.outside_temp = value self.outside_temp_unit = unit elif key == "Humidity_outside": self.outside_humidity = value self.outside_humidity_unit = unit elif key == "_Pressure": self.pressure = value self.pressure_unit = unit elif key == "Rain_boolean": # RainRate self.rain_rate = value self.rain_rate_unit = 'boulean' elif key == "Wind_speed": self.wind_speed = value self.wind_speed_unit = unit elif key == "Wind_dir": self.wind_dir = value self.wind_dir_unit = unit elif key == "_DewPoint": self.dew_point = value self.dew_point_unit = unit elif key == "_analog": self.analog = value self.analog_unit = unit elif key == "_digital": self.digital = value self.digital_unit = unit elif key == "_InsideTemp": self.inside_temp = value self.inside_temp_unit = unit elif key == "_InsideHumidity": self.inside_humidity = value self.inside_humidity_unit = unit elif key == "_WindDirCardinal": self.wind_dir_cardinal = value self.wind_dir_cardinal_unit = unit elif key == "_SensorTemperature": self.sensor_temperature = value self.sensor_temperature_unit = unit elif key == "_SkyTemperature": self.sky_temperature = value self.sky_temperature_unit = unit # PM 20190222 try patch elif key == "Error_code": self.status = value elif key == "current": self.current = value self.current_unit = unit elif key == "mode": self.plc_mode = value elif key == "is_safe": self.is_safe = value elif key == "LIGHTS": self.lights = value elif key == "SHUTTERS": self.shutters = value else: # PM 20190222 ignore unrecognized #raise KeyError("Key " + str(key) + " unrecognized") pass class PlcDevice(Device): #device = models.ForeignKey('Plc', on_delete=models.CASCADE, related_name='plc_devices') name = models.CharField(max_length=45, blank=True, null=True) desc = models.TextField(blank=True, null=True) created = models.DateTimeField(blank=True, null=True, auto_now_add=True) updated = models.DateTimeField(blank=True, null=True, auto_now=True) class Meta: managed = True db_table = 'plc_devices' def __str__(self): return str(self.name) #class Plc(Device): # last_update_status = models.DateTimeField(blank=True, null=True) # i # class Meta: # managed = True # db_table = 'plc' class PyrosUser(AbstractUser): username = models.CharField(max_length=255, blank=False, null=False, unique=True) is_active = models.BooleanField(default='False') first_time = models.BooleanField(default='False') country = models.ForeignKey( Country, on_delete=models.DO_NOTHING, related_name="pyros_users") user_level = models.ForeignKey( 'UserLevel', on_delete=models.DO_NOTHING, related_name="pyros_users") desc = models.TextField(blank=True, null=True) created = models.DateTimeField(blank=True, null=True, auto_now_add=True) updated = models.DateTimeField(blank=True, null=True, auto_now=True) tel = models.CharField(max_length=45, blank=True, null=True) address = models.TextField(max_length=100, blank=True, null=True) laboratory = models.CharField(max_length=45, blank=True, null=True) last_connect = models.DateTimeField(blank=True, null=True) cur_connect = models.DateTimeField(blank=True, null=True) putvalid_beg = models.DateTimeField(blank=True, null=True) putvalid_end = models.DateTimeField(blank=True, null=True) acqvalid_beg = models.CharField(max_length=45, blank=True, null=True) acqvalid_end = models.CharField(max_length=45, blank=True, null=True) quota = models.FloatField(blank=True, null=True) quota_rea = models.FloatField(blank=True, null=True) u_priority = models.IntegerField(blank=True, null=True) p_priority = models.IntegerField(blank=True, null=True) dir_level = models.IntegerField(blank=True, null=True) can_del_void_req = models.BooleanField(default=False) class Meta: managed = True db_table = 'pyros_user' def __str__(self): return (str(self.get_username())) def user_username(self): return self.__str__() user_username.short_description = "Username" # class Schedule(models.Model): # created = models.DateTimeField(blank=True, null=True, auto_now_add=True) # plan_start = models.DecimalField( # default=0.0, max_digits=15, decimal_places=8) # plan_end = models.DecimalField( # default=0.0, max_digits=15, decimal_places=8) # flag = models.CharField(max_length=45, blank=True, null=True) # # class Meta: # managed = True # db_table = 'schedule' # # def __str__(self): # return (str(self.created)) class Schedule(models.Model): sequences = models.ManyToManyField( 'Sequence', through='ScheduleHasSequences', related_name='schedules') created = models.DateTimeField(blank=True, null=True, auto_now_add=True) plan_night_start = models.DecimalField( default=0.0, max_digits=15, decimal_places=8) plan_end = models.DecimalField( default=0.0, max_digits=15, decimal_places=8) plan_start = models.DecimalField( default=0.0, max_digits=15, decimal_places=8) flag = models.CharField(max_length=45, blank=True, null=True) class Meta: managed = True db_table = 'schedule' verbose_name_plural = "Schedules" def __str__(self): return (str(self.created)) class ScientificProgram(models.Model): pyros_users = models.ManyToManyField( 'PyrosUser', related_name="scientific_programs") name = models.CharField(max_length=45, blank=True, null=True) desc = models.TextField(blank=True, null=True) quota = models.FloatField(blank=True, null=True) priority = models.IntegerField(blank=True, null=True) class Meta: managed = True db_table = 'scientific_program' def __str__(self): return (str(self.name)) class Sequence(models.Model): """ Definition of Status enum values """ INCOMPLETE = "INCPL" COMPLETE = "CPL" TOBEPLANNED = "TBP" PLANNED = "PLND" PENDING = "PNDG" EXECUTING = "EXING" EXECUTED = "EXD" REJECTED = "RJTD" INVALID = "INVL" CANCELLED = "CNCLD" UNPLANNABLE = "UNPLN" STATUS_CHOICES = ( (INCOMPLETE, "Incomplete"), (COMPLETE, "Complete"), (TOBEPLANNED, "To be planned"), (PLANNED, "Planned"), (UNPLANNABLE, "Unplannable"), (PENDING, "Pending"), (EXECUTED, "Executed"), (EXECUTING, "Executing"), (REJECTED, "Rejected"), (CANCELLED, "Cancelled"), (INVALID, "Invalid"), ) request = models.ForeignKey( Request, on_delete=models.CASCADE, related_name="sequences") name = models.CharField(max_length=45, blank=True, null=True) desc = models.TextField(blank=True, null=True) created = models.DateTimeField(blank=True, null=True, auto_now_add=True) updated = models.DateTimeField(blank=True, null=True, auto_now=True) is_alert = models.BooleanField(default=False) status = models.CharField( max_length=11, blank=True, null=True, choices=STATUS_CHOICES) target_coords = models.CharField(max_length=100, blank=True, null=True) with_drift = models.BooleanField(default=False) priority = models.IntegerField(blank=True, null=True) analysis_method = models.CharField(max_length=45, blank=True, null=True) moon_min = models.IntegerField(blank=True, null=True) alt_min = models.IntegerField(blank=True, null=True) type = models.CharField(max_length=6, blank=True, null=True) img_current = models.CharField(max_length=45, blank=True, null=True) img_total = models.CharField(max_length=45, blank=True, null=True) not_obs = models.BooleanField(default=False) obsolete = models.BooleanField(default=False) processing = models.BooleanField(default=False) flag = models.CharField(max_length=45, blank=True, null=True) jd1 = models.DecimalField(default=0.0, max_digits=15, decimal_places=8) jd2 = models.DecimalField(default=0.0, max_digits=15, decimal_places=8) t_prefered = models.DecimalField( default=-1.0, max_digits=15, decimal_places=8) duration = models.DecimalField( default=-1.0, max_digits=15, decimal_places=8) overhead = models.DecimalField(default=0, max_digits=15, decimal_places=8) ra = models.FloatField(blank=True, null=True) dec = models.FloatField(blank=True, null=True) class Meta: managed = True db_table = 'sequence' def __str__(self): return (str(self.name)) class ScheduleHasSequences(models.Model): # (EP) TODO: C'est pas un pb d'utiliser 2 fois le meme nom "shs" pour 2 choses differentes ???!!! schedule = models.ForeignKey( 'Schedule', on_delete=models.CASCADE, related_name="shs") sequence = models.ForeignKey( 'Sequence', on_delete=models.CASCADE, related_name="shs") status = models.CharField( max_length=11, blank=True, null=True, choices=Sequence.STATUS_CHOICES) desc = models.CharField(max_length=45, blank=True, null=True) tsp = models.DecimalField(default=-1.0, max_digits=15, decimal_places=8) tep = models.DecimalField(default=-1.0, max_digits=15, decimal_places=8) deltaTL = models.DecimalField( default=-1.0, max_digits=15, decimal_places=8) deltaTR = models.DecimalField( default=-1.0, max_digits=15, decimal_places=8) class Meta: managed = True db_table = 'schedule_has_sequences' class SiteWatch(models.Model): OPEN = "OPEN" CLOSE = "CLOSE" ON = "ON" OFF = "OFF" global_status = models.CharField(max_length=255, blank=True, null=True) updated = models.DateTimeField(blank=True, null=True, auto_now=True) lights = models.CharField(max_length=45, blank=True, null=True) dome = models.CharField(max_length=45, blank=True, null=True) doors = models.CharField(max_length=45, blank=True, null=True) temperature = models.FloatField(blank=True, null=True) shutter = models.FloatField(blank=True, null=True) pressure = models.FloatField(blank=True, null=True) humidity = models.FloatField(blank=True, null=True) class Meta: managed = True db_table = 'sitewatch' verbose_name_plural = "Site watches" def __str__(self): return (str(self.__dict__)) # TODO def setGlobalStatus(self): self.global_status = "" if self.doors and self.doors.find("open") != -1: self.global_status += "DOOR_OPEN " if self.lights and self.lights == "on": self.global_status += "LIGHTS_ON " if self.temperature and float(self.temperature) > 40: self.global_status += "TOO_HOT " if self.humidity and float(self.humidity) > 80: self.global_status += "HUMIDITY_TOO_HIGH " if self.global_status == "": self.global_status = "OK" return 0 # TODO HANDLE FLAT LAMPS ... def setAttribute(self, key, value): self.doors = "" if key == "InsideHumidity": self.humidity = value elif key == "Pressure": self.pressure = value elif key == "InsideTemp": self.temperature = value else: return 1 return 0 class SiteWatchHistory(models.Model): id = models.IntegerField(primary_key=True) class Meta: managed = True db_table = 'sitewatchhistory' verbose_name_plural = "Site watch histories" class StrategyObs(models.Model): name = models.CharField(max_length=45, blank=True, null=True) desc = models.TextField(blank=True, null=True) xml_file = models.CharField(max_length=45, blank=True, null=True) is_default = models.BooleanField(default=False) class Meta: managed = True db_table = 'strategyobs' verbose_name_plural = "Strategy obs" def __str__(self): return (str(self.name)) #TODO: à virer car utilisé pour Celery (ou bien à utiliser pour les agents) class TaskId(models.Model): task = models.CharField(max_length=45, blank=True, null=True) created = models.DateTimeField(blank=True, null=True, auto_now_add=True) task_id = models.CharField(max_length=45, blank=True, null=True) class Meta: managed = True db_table = 'task_id' def __str__(self): return (str(self.task) + " - " + str(self.task_id)) class Telescope(Device): TELESCOPE = "Telescope" mount_type = models.CharField(max_length=9, blank=True, null=True) diameter = models.FloatField(blank=True, null=True) latitude = models.FloatField(blank=True, null=True) longitude = models.FloatField(blank=True, null=True) sens = models.CharField(max_length=1, blank=True, null=True) altitude = models.FloatField(blank=True, null=True) readout_time = models.IntegerField(blank=True, null=True) slew_time = models.IntegerField(blank=True, null=True) slew_dead = models.IntegerField(blank=True, null=True) slew_rate_max = models.FloatField(blank=True, null=True) horizon_type = models.CharField(max_length=45, blank=True, null=True) horizon_def = models.FloatField(blank=True, null=True) lim_dec_max = models.FloatField(blank=True, null=True) lim_dec_min = models.FloatField(blank=True, null=True) lim_ha_rise = models.FloatField(blank=True, null=True) lim_ha_set = models.FloatField(blank=True, null=True) address = models.CharField(max_length=45, blank=True, null=True) night_elev_sun = models.FloatField(blank=True, null=True) mpc_code = models.CharField(max_length=45, blank=True, null=True) class Meta: managed = True db_table = 'telescope' def __str__(self): return (self.name) class TelescopeCommand(models.Model): created = models.DateTimeField(blank=True, null=True, auto_now_add=True) answered = models.DateTimeField(blank=True, null=True) request = models.CharField(blank=False, null=False, max_length=255) answer = models.TextField(null=True, blank=True) class Meta: managed = True db_table = "telescopecommand" def __str__(self): return str(self.request) + str(self.created) class UserLevel(models.Model): name = models.CharField(max_length=45, blank=True, null=True) desc = models.TextField(blank=True, null=True) priority = models.IntegerField(blank=True, null=True) quota = models.FloatField(blank=True, null=True) class Meta: managed = True db_table = 'user_level' def __str__(self): return (str(self.name)) class Version(models.Model): module_name = models.CharField(max_length=45, blank=True, null=True) version = models.CharField(max_length=15, blank=True, null=True) created = models.DateTimeField(blank=True, null=True, auto_now_add=True) updated = models.DateTimeField(blank=True, null=True, auto_now=True) class Meta: managed = True db_table = 'version' def __str__(self): return (str(self.module_name) + " - " + str(self.version)) class WeatherWatch(models.Model): WIND_LIMIT = 100 RAIN_LIMIT = 5 global_status = models.CharField(max_length=255, blank=True, null=True) updated = models.DateTimeField(blank=True, null=True, auto_now=True) humidity = models.FloatField(blank=True, null=True) wind = models.FloatField(blank=True, null=True) wind_dir = models.CharField(max_length=45, blank=True, null=True) temperature = models.FloatField(blank=True, null=True) pressure = models.FloatField(blank=True, null=True) rain = models.FloatField(blank=True, null=True) cloud = models.FloatField(blank=True, null=True) class Meta: managed = True db_table = 'weatherwatch' verbose_name_plural = "Weather watches" def __str__(self): return (str(self.__dict__)) # TODO def setGlobalStatus(self): #print(self.rain) self.global_status = "" if self.rain and float(self.rain) > 0: self.global_status += "RAINING " if self.wind and float(self.wind) > 80: self.global_status += "WIND_TOO_STRONG " if self.humidity and float(self.humidity) > 80: self.global_status += "HUMIDITY_TOO_HIGH " if self.cloud and float(self.cloud) > 10: self.global_status += "TOO_MUCH_CLOUDY " if self.global_status == "": self.global_status = "OK" return 0 def setAttribute(self, key, value): if key == "Rain_boolean": self.rain = value elif key == "_CloudRate": self.cloud = value elif key == "Wind_speed": self.wind = value elif key == "Wind_direction": self.wind_dir = value elif key == "Temperature_outside": self.temperature = value elif key == "Humidity_outside": self.humidity = value elif key == "_Pressure": self.pressure = value else: return 1 return 0 class WeatherWatchHistory(models.Model): datetime = models.DateTimeField(blank=True, null=True, auto_now_add=True) humid_int = models.FloatField(blank=True, null=True) humid_ext = models.CharField(max_length=45, blank=True, null=True) wind = models.CharField(max_length=45, blank=True, null=True) wind_dir = models.CharField(max_length=45, blank=True, null=True) temp_int = models.CharField(max_length=45, blank=True, null=True) temp_ext = models.CharField(max_length=45, blank=True, null=True) pressure = models.CharField(max_length=45, blank=True, null=True) rain = models.CharField(max_length=45, blank=True, null=True) dwn = models.CharField(max_length=45, blank=True, null=True) class Meta: managed = True db_table = 'weatherwatchhistory' verbose_name_plural = "Weather watch histories" def __str__(self): return (str(self.datetime))