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import json
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from polymorphic import PolymorphicModel
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from django.db import models
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from django.core.validators import MinValueValidator, MaxValueValidator
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from apps.main.models import Configuration
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# Create your models here.
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LINE_TYPES = (
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('tr', 'Transmission/reception selector signal'),
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('tx', 'A modulating signal (Transmission pulse)'),
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('codes', 'BPSK modulating signal'),
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('windows', 'Sample window signal'),
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('sync', 'Synchronizing signal'),
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('flip', 'IPP related periodic signal'),
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('prog_pulses', 'Programmable pulse'),
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)
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LINE_PARAMS = {
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"tr": [{"name":"time_after", "value": 0}],
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"tx": [{"name": "pulse_width", "value": 0},{"name":"delays", "value":""}],
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"codes": [{"name":"tx_ref", "value": ""},{"name":"code", "value": "", "choices":"RCLineCode"}],
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"windows": [{"name":"tx_ref","value":""}, {"name":"first_height", "value":0}, {"name":"number_of_samples","value":0}, {"name":"resolution","value":0}, {"name":"last_height","value":0}],
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"sync": [{"name": "delay", "value": 0}],
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"flip": [{"name":"number_of_flips", "value": 0}],
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"prog_pulses": [{"name": "begin", "value": 0}, {"name": "end","value": 0}],
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}
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class RCConfiguration(Configuration):
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clock = models.FloatField(verbose_name='Clock Master (MHz)', validators=[MinValueValidator(0), MaxValueValidator(80)], blank=True, null=True)
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clock_divider = models.PositiveIntegerField(verbose_name='Clock divider', validators=[MinValueValidator(0), MaxValueValidator(256)], blank=True, null=True)
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ipp = models.PositiveIntegerField(verbose_name='Inter pulse period (Km)', default=10)
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ntx = models.PositiveIntegerField(verbose_name='Number of pulse of transmit', default=1)
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time_before = models.PositiveIntegerField(verbose_name='Number of pulse of transmit', default=0)
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class Meta:
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db_table = 'rc_configurations'
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def get_number_position(self):
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lines = RCLine.objects.filter(rc_configuration=self.rc_configuration)
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if lines:
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return max([line.position for line in lines])
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def get_refs_lines(self):
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lines = RCLine.objects.filter(rc_configuration=self.pk, line_type__name='tx')
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return [(line.pk, line.get_name()) for line in lines]
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class RCLineCode(models.Model):
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name = models.CharField(max_length=40)
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bits_per_code = models.PositiveIntegerField(default=0)
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number_of_codes = models.PositiveIntegerField(default=0)
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codes = models.TextField(blank=True, null=True)
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class Meta:
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db_table = 'rc_line_codes'
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ordering = ('name',)
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def __unicode__(self):
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return u'%s' % self.name
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class RCLineType(models.Model):
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name = models.CharField(choices=LINE_TYPES, max_length=40)
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description = models.TextField(blank=True, null=True)
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params = models.TextField(default='[]')
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class Meta:
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db_table = 'rc_line_types'
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def __unicode__(self):
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return u'%s - %s' % (self.name.upper(), self.get_name_display())
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class RCLine(models.Model):
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rc_configuration = models.ForeignKey(RCConfiguration)
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line_type = models.ForeignKey(RCLineType)
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channel = models.PositiveIntegerField(default=0)
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position = models.PositiveIntegerField(default=0)
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params = models.TextField(default='{}')
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class Meta:
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db_table = 'rc_lines'
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def __unicode__(self):
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return u'%s - %s' % (self.rc_configuration, self.get_name())
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def get_name(self):
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chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
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if self.line_type.name in ('tx', 'tr',):
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return '%s %s' % (self.line_type.name.upper(), chars[self.position])
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elif self.line_type.name in ('codes', 'windows',):
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pk = json.loads(self.params)['TX_ref']
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ref = RCLine.objects.get(pk=pk)
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return '%s %s' % (self.line_type.name.upper(), chars[ref.position])
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else:
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return self.line_type.name.upper()
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