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Add more indexes and optimize usage

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This commit is contained in:
Daniele Viganò
2026-01-18 14:45:39 +01:00
parent ec470ac0a7
commit 44a965eb62
8 changed files with 324 additions and 3 deletions
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50
ram/consist/migrations/0020_consist_consist_published_idx_and_more.py Normal file
View File

@@ -0,0 +1,50 @@
# Generated by Django 6.0.1 on 2026-01-18 13:42
from django.db import migrations, models
class Migration(migrations.Migration):
dependencies = [
("consist", "0019_consistitem_load"),
(
"metadata",
"0027_company_company_slug_idx_company_company_country_idx_and_more",
),
("roster", "0041_rollingclass_roster_rc_company_idx_and_more"),
]
operations = [
migrations.AddIndex(
model_name="consist",
index=models.Index(fields=["published"], name="consist_published_idx"),
),
migrations.AddIndex(
model_name="consist",
index=models.Index(fields=["scale"], name="consist_scale_idx"),
),
migrations.AddIndex(
model_name="consist",
index=models.Index(fields=["company"], name="consist_company_idx"),
),
migrations.AddIndex(
model_name="consist",
index=models.Index(
fields=["published", "scale"], name="consist_pub_scale_idx"
),
),
migrations.AddIndex(
model_name="consistitem",
index=models.Index(fields=["load"], name="consist_item_load_idx"),
),
migrations.AddIndex(
model_name="consistitem",
index=models.Index(fields=["order"], name="consist_item_order_idx"),
),
migrations.AddIndex(
model_name="consistitem",
index=models.Index(
fields=["consist", "load"], name="consist_item_con_load_idx"
),
),
]

24
ram/consist/models.py
View File

@@ -74,6 +74,18 @@ class Consist(BaseModel):
class Meta:
ordering = ["company", "-creation_time"]
indexes = [
# Index for published filtering
models.Index(fields=["published"], name="consist_published_idx"),
# Index for scale filtering
models.Index(fields=["scale"], name="consist_scale_idx"),
# Index for company filtering
models.Index(fields=["company"], name="consist_company_idx"),
# Composite index for published+scale filtering
models.Index(
fields=["published", "scale"], name="consist_pub_scale_idx"
),
]
class ConsistItem(models.Model):
@@ -89,9 +101,19 @@ class ConsistItem(models.Model):
constraints = [
models.UniqueConstraint(
fields=["consist", "rolling_stock"],
name="one_stock_per_consist"
name="one_stock_per_consist",
)
]
indexes = [
# Index for filtering by load status
models.Index(fields=["load"], name="consist_item_load_idx"),
# Index for ordering
models.Index(fields=["order"], name="consist_item_order_idx"),
# Composite index for consist+load filtering
models.Index(
fields=["consist", "load"], name="consist_item_con_load_idx"
),
]
def __str__(self):
return "{0}".format(self.rolling_stock)