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93 lines
3.1 KiB
93 lines
3.1 KiB
2 days ago
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import datetime
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from django.db import models
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from io import BytesIO
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from reportlab.lib.pagesizes import letter
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from reportlab.pdfgen import canvas
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# Employee Directory
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class Employee(models.Model):
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first_name = models.CharField(max_length=50)
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last_name = models.CharField(max_length=50)
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position = models.CharField(max_length=100)
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email = models.EmailField(unique=True)
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hired_date = models.DateField()
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work_schedule = models.JSONField(default=dict)
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def __str__(self):
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return f"{self.first_name} {self.last_name}"
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# Time Tracking System
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class WorkTimeLog(models.Model):
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employee = models.ForeignKey(Employee, on_delete=models.CASCADE)
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date = models.DateField()
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check_in = models.TimeField(null=True, blank=True)
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check_out = models.TimeField(null=True, blank=True)
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worked_hours = models.FloatField(null=True, blank=True)
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def calculate_worked_hours(self):
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if self.check_in and self.check_out:
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delta = datetime.combine(datetime.date.min, self.check_out) - datetime.combine(datetime.date.min, self.check_in)
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self.worked_hours = delta.total_seconds() / 3600
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else:
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self.worked_hours = 0
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def save(self, *args, **kwargs):
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self.calculate_worked_hours()
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super().save(*args, **kwargs)
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def __str__(self):
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return f"{self.employee}: {self.date}"
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# Leave Management
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class Leave(models.Model):
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LEAVE_TYPE_CHOICES = [
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("vacation", "Vacation"),
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("sick", "Sick Leave"),
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]
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employee = models.ForeignKey(Employee, on_delete=models.CASCADE)
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leave_type = models.CharField(max_length=10, choices=LEAVE_TYPE_CHOICES)
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start_date = models.DateField()
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end_date = models.DateField()
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reason = models.TextField(blank=True)
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def __str__(self):
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return f"{self.employee}: {self.leave_type} ({self.start_date} - {self.end_date})"
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def duration(self):
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return (self.end_date - self.start_date).days + 1
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# Overtime Reporting
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class OvertimeReport(models.Model):
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employee = models.ForeignKey(Employee, on_delete=models.CASCADE)
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date = models.DateField()
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worked_hours = models.FloatField()
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required_hours = models.FloatField(default=8.0)
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overtime = models.FloatField()
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comment = models.TextField(blank=True)
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def calculate_overtime(self):
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self.overtime = self.worked_hours - self.required_hours
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def save(self, *args, **kwargs):
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self.calculate_overtime()
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super().save(*args, **kwargs)
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def __str__(self):
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return f"{self.employee}: {self.overtime} hours on {self.date}"
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# PDF Generation for HR Reports
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class Report(models.Model):
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employee = models.ForeignKey(Employee, on_delete=models.CASCADE)
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report_date = models.DateField(auto_now_add=True)
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def generate_pdf(self):
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buffer = BytesIO()
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c = canvas.Canvas(buffer, pagesize=letter)
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c.drawString(100, 750, f"Employee: {self.employee.first_name} {self.employee.last_name}")
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c.drawString(100, 730, f"Date: {self.report_date}")
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c.showPage()
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c.save()
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buffer.seek(0)
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return buffer
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