23084514956

Committed 14 Mar 2026 08:43AM UTC coverage: 59.695% (-20.4%) from 80.097%

Build # 23084514956

Build Type

push

github

Committed by

web-flow

Commit Message

Merge pull request #19 from lucaslorentz/feature/migration-backfill

Automatic backfill SQL generation in migrations

Coverage Stats

21 of 148 new or added lines in 8 files covered. (14.19%)

6 existing lines in 2 files now uncovered.

1995 of 3342 relevant lines covered (59.69%)

663.35 hits per line

Source File
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93.33

/src/LLL.AutoCompute.EFCore/Extensions/EntityTypeBuilderExtensions.cs

using System.Linq.Expressions;
using System.Text.RegularExpressions;
using LLL.AutoCompute.EFCore.Metadata.Internal;
using Microsoft.EntityFrameworkCore.Metadata.Builders;

namespace LLL.AutoCompute.EFCore;

public static class EntityTypeBuilderExtensions
{
    private static readonly Regex ValidNameRegex = new(@"^[A-Z][a-zA-Z0-9]*$", RegexOptions.Compiled);

    public static PropertyBuilder<TProperty> ComputedProperty<TEntity, TProperty>(
        this EntityTypeBuilder<TEntity> entityTypeBuilder,
        Expression<Func<TEntity, TProperty>> propertyExpression,
        Expression<Func<TEntity, TProperty>> computedExpression,
        ChangeCalculatorSelector<TProperty, TProperty>? calculationSelector = null)
        where TEntity : class
    {
        return entityTypeBuilder.Property(propertyExpression)
            .AutoCompute(computedExpression, calculationSelector);
    }

    public static NavigationBuilder<TEntity, TProperty> ComputedNavigation<TEntity, TProperty>(
        this EntityTypeBuilder<TEntity> entityTypeBuilder,
        Expression<Func<TEntity, TProperty>> navigationExpression,
        Expression<Func<TEntity, TProperty>> computedExpression,
        ChangeCalculatorSelector<TProperty, TProperty>? calculationSelector = null,
        Action<IComputedNavigationBuilder<TEntity, TProperty>>? configure = null)
        where TEntity : class
        where TProperty : class
    {
        return entityTypeBuilder.Navigation(navigationExpression!)
            .AutoCompute(computedExpression!, calculationSelector, configure);
    }

    public static void ComputedObserver<TEntity, TValue, TChange>(
        this EntityTypeBuilder<TEntity> entityTypeBuilder,
        string name,
        Expression<Func<TEntity, TValue>> computedExpression,
        Expression<Func<TEntity, bool>>? filterExpression,
        ChangeCalculatorSelector<TValue, TChange> calculationSelector,
        Func<TEntity, TChange, Task> callback)
        where TEntity : class
    {
        entityTypeBuilder
            .ComputedObserver(
                name,
                computedExpression,
                filterExpression,
                calculationSelector,
                async (ComputedChangeEventData<TEntity, TChange> eventData) =>
                {
                    foreach (var (entity, change) in eventData.Changes)
                    {
                        await callback(entity, change);
                    }
                }
            );
    }

    public static void ComputedObserver<TEntity, TValue, TChange>(
        this EntityTypeBuilder<TEntity> entityTypeBuilder,
        string name,
        Expression<Func<TEntity, TValue>> computedExpression,
        Expression<Func<TEntity, bool>>? filterExpression,
        ChangeCalculatorSelector<TValue, TChange> calculationSelector,
        Func<ComputedChangeEventData<TEntity, TChange>, Task> callback)
        where TEntity : class
    {
        if (!ValidNameRegex.IsMatch(name))
            throw new ArgumentException($"Observer name '{name}' is invalid. Name must be PascalCase with only alphanumeric characters (e.g. 'NotificarBiker').", nameof(name));

        var changeCalculator = calculationSelector(ChangeCalculatorFactory<TValue>.Instance);

        entityTypeBuilder.Metadata.AddObserverFactory(
            ComputedObserverFactory.CreateObserverFactory(
                name,
                computedExpression,
                filterExpression,
                changeCalculator,
                callback));
    }

    public static void ConsistencyFilter<TEntity>(
        this EntityTypeBuilder<TEntity> entityTypeBuilder,
        Expression<Func<TEntity, DateTime, bool>> filter)
        where TEntity : class
    {
        entityTypeBuilder.Metadata.SetConsistencyFilter(filter);
    }
}

1	using System.Linq.Expressions;
2	using System.Text.RegularExpressions;
3	using LLL.AutoCompute.EFCore.Metadata.Internal;
4	using Microsoft.EntityFrameworkCore.Metadata.Builders;
5
6	namespace LLL.AutoCompute.EFCore;
7
8	public static class EntityTypeBuilderExtensions
9	{
10	private static readonly Regex ValidNameRegex = new(@"^[A-Z][a-zA-Z0-9]*$", RegexOptions.Compiled);	2✔
11
12	public static PropertyBuilder<TProperty> ComputedProperty<TEntity, TProperty>(
13	this EntityTypeBuilder<TEntity> entityTypeBuilder,
14	Expression<Func<TEntity, TProperty>> propertyExpression,
15	Expression<Func<TEntity, TProperty>> computedExpression,
16	ChangeCalculatorSelector<TProperty, TProperty>? calculationSelector = null)
17	where TEntity : class
18	{
19	return entityTypeBuilder.Property(propertyExpression)	246✔
20	.AutoCompute(computedExpression, calculationSelector);	246✔
21	}
22
23	public static NavigationBuilder<TEntity, TProperty> ComputedNavigation<TEntity, TProperty>(
24	this EntityTypeBuilder<TEntity> entityTypeBuilder,
25	Expression<Func<TEntity, TProperty>> navigationExpression,
26	Expression<Func<TEntity, TProperty>> computedExpression,
27	ChangeCalculatorSelector<TProperty, TProperty>? calculationSelector = null,
28	Action<IComputedNavigationBuilder<TEntity, TProperty>>? configure = null)
29	where TEntity : class
30	where TProperty : class
31	{
32	return entityTypeBuilder.Navigation(navigationExpression!)	3✔
33	.AutoCompute(computedExpression!, calculationSelector, configure);	3✔
34	}
35
36	public static void ComputedObserver<TEntity, TValue, TChange>(
37	this EntityTypeBuilder<TEntity> entityTypeBuilder,
38	string name,
39	Expression<Func<TEntity, TValue>> computedExpression,
40	Expression<Func<TEntity, bool>>? filterExpression,
41	ChangeCalculatorSelector<TValue, TChange> calculationSelector,
42	Func<TEntity, TChange, Task> callback)
43	where TEntity : class
44	{
45	entityTypeBuilder	18✔
46	.ComputedObserver(	18✔
47	name,	18✔
48	computedExpression,	18✔
49	filterExpression,	18✔
50	calculationSelector,	18✔
51	async (ComputedChangeEventData<TEntity, TChange> eventData) =>	18✔
52	{	18✔
53	foreach (var (entity, change) in eventData.Changes)	130✔
54	{	18✔
55	await callback(entity, change);	50✔
56	}	18✔
57	}	18✔
58	);	18✔
59	}
60
61	public static void ComputedObserver<TEntity, TValue, TChange>(
62	this EntityTypeBuilder<TEntity> entityTypeBuilder,
63	string name,
64	Expression<Func<TEntity, TValue>> computedExpression,
65	Expression<Func<TEntity, bool>>? filterExpression,
66	ChangeCalculatorSelector<TValue, TChange> calculationSelector,
67	Func<ComputedChangeEventData<TEntity, TChange>, Task> callback)
68	where TEntity : class
69	{
70	if (!ValidNameRegex.IsMatch(name))	18✔
UNCOV 71	throw new ArgumentException($"Observer name '{name}' is invalid. Name must be PascalCase with only alphanumeric characters (e.g. 'NotificarBiker').", nameof(name));	×
72
73	var changeCalculator = calculationSelector(ChangeCalculatorFactory<TValue>.Instance);	18✔
74
75	entityTypeBuilder.Metadata.AddObserverFactory(	18✔
76	ComputedObserverFactory.CreateObserverFactory(	18✔
77	name,	18✔
78	computedExpression,	18✔
79	filterExpression,	18✔
80	changeCalculator,	18✔
81	callback));	18✔
82	}
83
84	public static void ConsistencyFilter<TEntity>(
85	this EntityTypeBuilder<TEntity> entityTypeBuilder,
86	Expression<Func<TEntity, DateTime, bool>> filter)
87	where TEntity : class
88	{
UNCOV 89	entityTypeBuilder.Metadata.SetConsistencyFilter(filter);	×
90	}
91	}

lucaslorentz / auto-compute / 23084514956

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