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sunkaixuan
2017-06-12 18:19:18 +08:00
parent 93192405ce
commit d0d17366a7
3 changed files with 12 additions and 8 deletions
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2
SqlServerTest/Demos/Query.cs
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@@ -119,6 +119,8 @@ namespace OrmTest.Demo
{
var db = GetInstance();
var getAll = db.Queryable<Student>().ToList();
var getId = db.Queryable<Student>().Select(it => it.Id).ToList();
// var getIdIIF= db.Queryable<Student>().Select(it =>new { id = SqlFunc.IIF(it.Id == 0, 1, it.Id) }).ToList();
var getAllNoLock = db.Queryable<Student>().With(SqlWith.NoLock).ToList();
var getByPrimaryKey = db.Queryable<Student>().InSingle(2);
var getSingleOrDefault = db.Queryable<Student>().Single();

16
SqlServerTest/UnitTest/ExpressionTest/Method.cs
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@@ -497,32 +497,34 @@ namespace OrmTest.UnitTest
private void IIF()
{
Expression<Func<Student, bool>> exp = it => SqlFunc.IIF(it.Id == 1, 1, 2);
Expression<Func<Student, bool>> exp = it => SqlFunc.IIF(it.Id == 1, 1, 2)==1;
SqlServerExpressionContext expContext = new SqlServerExpressionContext();
expContext.Resolve(exp, ResolveExpressType.WhereSingle);
var value = expContext.Result.GetString();
var pars = expContext.Parameters;
base.Check(value, pars, "( CASE WHEN ( [Id] = @Id1 ) THEN @MethodConst2 ELSE @MethodConst3 END )", new List<SugarParameter>()
base.Check(value, pars, "(( CASE WHEN ( [Id] = @Id1 ) THEN @MethodConst2 ELSE @MethodConst3 END ) = @Const4 )", new List<SugarParameter>()
{
new SugarParameter("@Id1",1),
new SugarParameter("@MethodConst2",1),
new SugarParameter("@MethodConst3",2)
new SugarParameter("@MethodConst3",2),
new SugarParameter("@Const4",1)
}, "IIF error");
}
private void IIF2()
{
Expression<Func<Student, bool>> exp = it => SqlFunc.IIF(SqlFunc.Contains(it.Name,"a"), 1, 2);
Expression<Func<Student, bool>> exp = it => SqlFunc.IIF(SqlFunc.Contains(it.Name,"a"), 1, 2)==1;
SqlServerExpressionContext expContext = new SqlServerExpressionContext();
expContext.Resolve(exp, ResolveExpressType.WhereSingle);
var value = expContext.Result.GetString();
var pars = expContext.Parameters;
base.Check(value, pars, "( CASE WHEN ([Name] like '%'+@MethodConst1+'%') THEN @MethodConst2 ELSE @MethodConst3 END )", new List<SugarParameter>()
base.Check(value, pars, "(( CASE WHEN ([Name] like '%'+@MethodConst1+'%') THEN @MethodConst2 ELSE @MethodConst3 END ) = @Const4 )", new List<SugarParameter>()
{
new SugarParameter("@MethodConst1","a"),
new SugarParameter("@MethodConst2",1),
new SugarParameter("@MethodConst3",2)
}, "IIF error");
new SugarParameter("@MethodConst3",2),
new SugarParameter("@Const4",1)
}, "IIF2 error");
}
}
}

2
SqlSugar/ExpressionsToSql/Method/SqlFunc.cs
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@@ -66,7 +66,7 @@ namespace SqlSugar
public static DateTime DateAdd(DateTime date, int addValue) { throw new NotSupportedException("This method is not supported by the current parameter"); }
public static int DateValue(DateTime date, DateType dataType) { throw new NotSupportedException("This method is not supported by the current parameter"); }
public static bool Between(object value, object start, object end) { throw new NotSupportedException("This method is not supported by the current parameter"); }
public static bool IIF(bool Expression, object thenValue, object elseValue) { throw new NotSupportedException("This method is not supported by the current parameter"); }
public static TResult IIF<TResult>(bool Expression, TResult thenValue, TResult elseValue) { throw new NotSupportedException("This method is not supported by the current parameter"); }
public static int ToInt32(object value) { return value.ObjToInt(); }
public static long ToInt64(object value) { return Convert.ToInt64(value); }
public static DateTime ToDate(object value) { return value.ObjToDate(); }