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Disable the use of the nullable type expression for sorting (#171)

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* Added option to disable creation of sort expression for nullable types

* Changed property name.

* Updated readme

Co-authored-by: Teun Leijten <tleijten@inforit.nl>
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HBTeun 2022-03-30 10:42:59 +02:00 committed by GitHub
parent 7aaadccf18
commit c1fadddfe8
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4 changed files with 11 additions and 6 deletions
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3
README.md
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@ -129,7 +129,8 @@ Then you can add the configuration:
"DefaultPageSize": "int number: optional number to fallback to when no page argument is given. Set <=0 to disable paging if no pageSize is specified (default).", "DefaultPageSize": "int number: optional number to fallback to when no page argument is given. Set <=0 to disable paging if no pageSize is specified (default).",
"MaxPageSize": "int number: maximum allowed page size. Set <=0 to make infinite (default)", "MaxPageSize": "int number: maximum allowed page size. Set <=0 to make infinite (default)",
"ThrowExceptions": "boolean: should Sieve throw exceptions instead of silently failing? Defaults to false", "ThrowExceptions": "boolean: should Sieve throw exceptions instead of silently failing? Defaults to false",
"IgnoreNullsOnNotEqual": "boolean: ignore null values when filtering using is not equal operator? Default to true" "IgnoreNullsOnNotEqual": "boolean: ignore null values when filtering using is not equal operator? Defaults to true",
"DisableNullableTypeExpressionForSorting": "boolean: disable the creation of nullable type expression for sorting. Some databases do not handle it (yet). Defaults to false"
} }
} }
``` ```

10
Sieve/Extensions/OrderByDynamic.cs
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@ -12,9 +12,10 @@ namespace Sieve.Extensions
string fullPropertyName, string fullPropertyName,
PropertyInfo propertyInfo, PropertyInfo propertyInfo,
bool desc, bool desc,
bool useThenBy) bool useThenBy,
bool disableNullableTypeExpression = false)
{ {
var lambda = GenerateLambdaWithSafeMemberAccess<TEntity>(fullPropertyName, propertyInfo); var lambda = GenerateLambdaWithSafeMemberAccess<TEntity>(fullPropertyName, propertyInfo, disableNullableTypeExpression);
var command = desc var command = desc
? (useThenBy ? "ThenByDescending" : "OrderByDescending") ? (useThenBy ? "ThenByDescending" : "OrderByDescending")
@ -33,7 +34,8 @@ namespace Sieve.Extensions
private static Expression<Func<TEntity, object>> GenerateLambdaWithSafeMemberAccess<TEntity> private static Expression<Func<TEntity, object>> GenerateLambdaWithSafeMemberAccess<TEntity>
( (
string fullPropertyName, string fullPropertyName,
PropertyInfo propertyInfo PropertyInfo propertyInfo,
bool disableNullableTypeExpression
) )
{ {
var parameter = Expression.Parameter(typeof(TEntity), "e"); var parameter = Expression.Parameter(typeof(TEntity), "e");
@ -52,7 +54,7 @@ namespace Sieve.Extensions
propertyValue = Expression.MakeMemberAccess(propertyValue, propertyInfo); propertyValue = Expression.MakeMemberAccess(propertyValue, propertyInfo);
} }
if (propertyValue.Type.IsNullable()) if (propertyValue.Type.IsNullable() && !disableNullableTypeExpression)
{ {
nullCheck = GenerateOrderNullCheckExpression(propertyValue, nullCheck); nullCheck = GenerateOrderNullCheckExpression(propertyValue, nullCheck);
} }

2
Sieve/Models/SieveOptions.cs
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@ -11,5 +11,7 @@
public bool ThrowExceptions { get; set; } = false; public bool ThrowExceptions { get; set; } = false;
public bool IgnoreNullsOnNotEqual { get; set; } = true; public bool IgnoreNullsOnNotEqual { get; set; } = true;
public bool DisableNullableTypeExpressionForSorting { get; set; } = false;
} }
} }

2
Sieve/Services/SieveProcessor.cs
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@ -365,7 +365,7 @@ namespace Sieve.Services
if (property != null) if (property != null)
{ {
result = result.OrderByDynamic(fullName, property, sortTerm.Descending, useThenBy); result = result.OrderByDynamic(fullName, property, sortTerm.Descending, useThenBy, Options.Value.DisableNullableTypeExpressionForSorting);
} }
else else
{ {