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Merged
DimitrovK merged 1 commit into from
Oct 4, 2025
Merged

feat: add indexes to DB CV models for easier search queries #43

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89 changes: 89 additions & 0 deletions cv/migrations/0003_alter_airesponse_created_at_and_more.py
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Original file line number Diff line number Diff line change
@@ -0,0 +1,89 @@
# Generated by Django 5.2.7 on 2025-10-04 08:00

from django.conf import settings
from django.db import migrations, models


class Migration(migrations.Migration):

dependencies = [
('cv', '0002_alter_airesponse_questionnaire'),
migrations.swappable_dependency(settings.AUTH_USER_MODEL),
]

operations = [
migrations.AlterField(
model_name='airesponse',
name='created_at',
field=models.DateTimeField(auto_now_add=True, db_index=True),
),
migrations.AlterField(
model_name='airesponse',
name='response_text',
field=models.TextField(help_text='ai generated response text'),
),
migrations.AlterField(
model_name='cvquestionnaire',
name='application_timeline',
field=models.CharField(choices=[('immediate', 'Immediate'), ('1-3 months', '1-3 months'), ('3-6 months', '3-6 months'), ('6+ months', '6+ months')], db_index=True, max_length=20),
),
migrations.AlterField(
model_name='cvquestionnaire',
name='company_size',
field=models.CharField(choices=[('startup', 'Startup'), ('small', 'Small'), ('medium', 'Medium'), ('enterprise', 'Enterprise')], db_index=True, max_length=10),
),
migrations.AlterField(
model_name='cvquestionnaire',
name='experience_level',
field=models.CharField(choices=[('0-2', '0-2 years'), ('3-5', '3-5 years'), ('6+', '6+ years')], db_index=True, max_length=10),
),
migrations.AlterField(
model_name='cvquestionnaire',
name='industry',
field=models.CharField(db_index=True, help_text='industry (max 255 characters)', max_length=255),
),
migrations.AlterField(
model_name='cvquestionnaire',
name='job_description',
field=models.TextField(blank=True, help_text='job description (max 5000 characters)', null=True),
),
migrations.AlterField(
model_name='cvquestionnaire',
name='location',
field=models.CharField(blank=True, help_text='location (max 255 characters)', max_length=255, null=True),
),
migrations.AlterField(
model_name='cvquestionnaire',
name='position',
field=models.CharField(db_index=True, help_text='job position (max 255 characters)', max_length=255),
),
migrations.AlterField(
model_name='cvquestionnaire',
name='submitted_at',
field=models.DateTimeField(auto_now_add=True, db_index=True),
),
migrations.AddIndex(
model_name='airesponse',
index=models.Index(fields=['questionnaire', 'created_at'], name='ai_quest_created_idx'),
),
migrations.AddIndex(
model_name='airesponse',
index=models.Index(fields=['created_at'], name='ai_created_at_idx'),
),
migrations.AddIndex(
model_name='cvquestionnaire',
index=models.Index(fields=['user', 'submitted_at'], name='cv_user_submitted_idx'),
),
migrations.AddIndex(
model_name='cvquestionnaire',
index=models.Index(fields=['position', 'industry'], name='cv_position_industry_idx'),
),
migrations.AddIndex(
model_name='cvquestionnaire',
index=models.Index(fields=['experience_level', 'company_size'], name='cv_exp_company_idx'),
),
migrations.AddIndex(
model_name='cvquestionnaire',
index=models.Index(fields=['submitted_at'], name='cv_submitted_at_idx'),
),
]
62 changes: 27 additions & 35 deletions cv/models.py
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Original file line number Diff line number Diff line change
Expand Up @@ -26,32 +26,25 @@ class CVQuestionnaire(models.Model):
('6+ months', '6+ months'),
]

user = models.ForeignKey(User, on_delete=models.CASCADE, related_name='questionnaires')
position = models.CharField(
max_length=255,
help_text="job position (max 255 characters)"
)
industry = models.CharField(
max_length=255,
help_text="industry (max 255 characters)"
)
experience_level = models.CharField(max_length=10, choices=EXPERIENCE_LEVEL_CHOICES)
company_size = models.CharField(max_length=10, choices=COMPANY_SIZE_CHOICES)
location = models.CharField(
max_length=255,
blank=True,
null=True,
help_text="location (max 255 characters)"
)
application_timeline = models.CharField(max_length=20, choices=APPLICATION_TIMELINE_CHOICES)
job_description = models.TextField(
blank=True,
null=True,
help_text="job description (max 5000 characters)"
)
submitted_at = models.DateTimeField(auto_now_add=True)
user = models.ForeignKey(User, on_delete=models.CASCADE, related_name='questionnaires', db_index=True)
position = models.CharField(max_length=255, help_text="job position (max 255 characters)", db_index=True)
industry = models.CharField(max_length=255, help_text="industry (max 255 characters)", db_index=True)
experience_level = models.CharField(max_length=10, choices=EXPERIENCE_LEVEL_CHOICES, db_index=True)
company_size = models.CharField(max_length=10, choices=COMPANY_SIZE_CHOICES, db_index=True)
location = models.CharField(max_length=255, blank=True, null=True, help_text="location (max 255 characters)")
application_timeline = models.CharField(max_length=20, choices=APPLICATION_TIMELINE_CHOICES, db_index=True)
job_description = models.TextField(blank=True, null=True, help_text="job description (max 5000 characters)")
submitted_at = models.DateTimeField(auto_now_add=True, db_index=True)
resume = models.FileField(upload_to='resumes/', blank=True, null=True)

class Meta:
indexes = [
models.Index(fields=['user', 'submitted_at'], name='cv_user_submitted_idx'),
models.Index(fields=['position', 'industry'], name='cv_position_industry_idx'),
models.Index(fields=['experience_level', 'company_size'], name='cv_exp_company_idx'),
models.Index(fields=['submitted_at'], name='cv_submitted_at_idx'),
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Copilot AI Oct 4, 2025

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The single-field index on 'submitted_at' is redundant since 'submitted_at' is already covered by the composite index 'cv_user_submitted_idx' and has db_index=True on the field definition.

Suggested change
models.Index(fields=['submitted_at'], name='cv_submitted_at_idx'),

Copilot uses AI. Check for mistakes.
]

def clean(self):
"""
validate model data at the model level
Expand Down Expand Up @@ -83,16 +76,15 @@ def __str__(self):


class AIResponse(models.Model):
# model was OneToOneField
questionnaire = models.ForeignKey(
CVQuestionnaire,
related_name='ai_response',
on_delete=models.CASCADE
)
response_text = models.TextField(
help_text="ai generated response text"
)
created_at = models.DateTimeField(auto_now_add=True)
questionnaire = models.ForeignKey(CVQuestionnaire, related_name='ai_response', on_delete=models.CASCADE, db_index=True)
response_text = models.TextField(help_text="ai generated response text")
created_at = models.DateTimeField(auto_now_add=True, db_index=True)

class Meta:
indexes = [
models.Index(fields=['questionnaire', 'created_at'], name='ai_quest_created_idx'),
models.Index(fields=['created_at'], name='ai_created_at_idx'),
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Copilot AI Oct 4, 2025

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The single-field index on 'created_at' is redundant since 'created_at' is already covered by the composite index 'ai_quest_created_idx' and has db_index=True on the field definition.

Suggested change
models.Index(fields=['created_at'], name='ai_created_at_idx'),

Copilot uses AI. Check for mistakes.
]

def clean(self):
"""
Expand All @@ -109,4 +101,4 @@ def __str__(self):
created = self.created_at
created = timezone.localtime(created).replace(microsecond=0)

return f"Response for {self.questionnaire.position} - {created.strftime('%Y-%m-%d %H:%M:%S')}"
return f"Response for {self.questionnaire.position} - {created.strftime('%Y-%m-%d %H:%M:%S')}"
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