C++ (Cpp) Predicate::GetSqlPredicate示例

示例#1

文件： ExpressionOperatorTests.cpp 项目： chrisblock/orm.cpp

TEST_F(ExpressionOperatorTests, NotEqualOperator_Expression_Constant_ReturnsCorrectPredicate)
{
	Expression<TestExpressionEntity, std::int32_t> expr = ::MakeExpression(&TestExpressionEntity::SetterGetterGetter);

	Predicate<TestExpressionEntity> setterGetterIsNotEqualToSix = expr != 6;

	SqlPredicate predicate = setterGetterIsNotEqualToSix.GetSqlPredicate(_registry);

	EXPECT_EQ(1, predicate.GetNumberOfParameters());
	EXPECT_EQ("(TestTable.SetterGetter <> ?)", predicate.GetPredicate());
}

示例#2

文件： ExpressionOperatorTests.cpp 项目： chrisblock/orm.cpp

TEST_F(ExpressionOperatorTests, NotEqualToOperator_Expression_null_ReturnsCorrectPredicate)
{
	Expression<TestExpressionEntity, std::int32_t> expr = ::MakeExpression(&TestExpressionEntity::SetterGetterGetter);

	Predicate<TestExpressionEntity> nullIsNotEqualToSetterGetter = (expr != nullptr);

	SqlPredicate predicate = nullIsNotEqualToSetterGetter.GetSqlPredicate(_registry);

	EXPECT_EQ(0, predicate.GetNumberOfParameters());
	EXPECT_EQ("(TestTable.SetterGetter IS NOT NULL)", predicate.GetPredicate());
}

示例#3

文件： ExpressionOperatorTests.cpp 项目： chrisblock/orm.cpp

TEST_F(ExpressionOperatorTests, EqualOperator_Expression_ConstReferenceGetter_ReturnsCorrectPredicate)
{
	Expression<TestExpressionEntity, std::int32_t> expr = ::MakeExpression(&TestExpressionEntity::SetterGetterGetter);

	Predicate<TestExpressionEntity> setterGetterIsEqualToSetterConstReferenceGetter = expr == &TestExpressionEntity::SetterConstReferenceGetterGetter;

	SqlPredicate predicate = setterGetterIsEqualToSetterConstReferenceGetter.GetSqlPredicate(_registry);

	EXPECT_EQ(0, predicate.GetNumberOfParameters());
	EXPECT_EQ("(TestTable.SetterGetter = TestTable.SetterConstReferenceGetter)", predicate.GetPredicate());
}

示例#4

文件： ExpressionOperatorTests.cpp 项目： chrisblock/orm.cpp

TEST_F(ExpressionOperatorTests, OrOperator_Exoression_Expression_ReturnsCorrectPredicate)
{
	Expression<TestExpressionEntity, std::int32_t> expr = ::MakeExpression(&TestExpressionEntity::SetterGetterGetter);

	Predicate<TestExpressionEntity> setterGetterIsEqualToSixAndOrSetterGetterIsNotEqualToFortyTwo = (expr == 6) || (expr != 42);

	SqlPredicate predicate = setterGetterIsEqualToSixAndOrSetterGetterIsNotEqualToFortyTwo.GetSqlPredicate(_registry);

	EXPECT_EQ(2, predicate.GetNumberOfParameters());
	EXPECT_EQ("((TestTable.SetterGetter = ?) OR (TestTable.SetterGetter <> ?))", predicate.GetPredicate());
}

示例#5

文件： ExpressionOperatorTests.cpp 项目： chrisblock/orm.cpp

TEST_F(ExpressionOperatorTests, OrOperator_Constant_Exoression_ReturnsCorrectPredicate)
{
	Expression<TestExpressionEntity, std::int32_t> expr = ::MakeExpression(&TestExpressionEntity::SetterGetterGetter);

	Predicate<TestExpressionEntity> falsOrSetterGetterIsEqualToSix = false || (expr == 6);

	SqlPredicate predicate = falsOrSetterGetterIsEqualToSix.GetSqlPredicate(_registry);

	EXPECT_EQ(2, predicate.GetNumberOfParameters());
	EXPECT_EQ("(? OR (TestTable.SetterGetter = ?))", predicate.GetPredicate());
}

示例#6

文件： ExpressionOperatorTests.cpp 项目： chrisblock/orm.cpp

TEST_F(ExpressionOperatorTests, OrOperator_Exoression_Constant_ReturnsCorrectPredicate)
{
	Expression<TestExpressionEntity, std::int32_t> expr = ::MakeExpression(&TestExpressionEntity::SetterGetterGetter);

	Predicate<TestExpressionEntity> setterGetterIsEqualToSixOrTrue = (expr == 6) || true;

	SqlPredicate predicate = setterGetterIsEqualToSixOrTrue.GetSqlPredicate(_registry);

	EXPECT_EQ(2, predicate.GetNumberOfParameters());
	EXPECT_EQ("((TestTable.SetterGetter = ?) OR ?)", predicate.GetPredicate());
}

示例#7

文件： ExpressionOperatorTests.cpp 项目： chrisblock/orm.cpp

TEST_F(ExpressionOperatorTests, GreaterThanOrEqualToOperator_Expression_Field_ReturnsCorrectPredicate)
{
	Expression<TestExpressionEntity, std::int32_t> expr = ::MakeExpression(&TestExpressionEntity::SetterGetterGetter);

	Predicate<TestExpressionEntity> setterGetterIsGreaterThanOrEqualToField = expr >= &TestExpressionEntity::_field;

	SqlPredicate predicate = setterGetterIsGreaterThanOrEqualToField.GetSqlPredicate(_registry);

	EXPECT_EQ(0, predicate.GetNumberOfParameters());
	EXPECT_EQ("(TestTable.SetterGetter >= TestTable.Field)", predicate.GetPredicate());
}

示例#8

文件： ExpressionOperatorTests.cpp 项目： chrisblock/orm.cpp

TEST_F(ExpressionOperatorTests, GreaterThanOperator_Expression_Getter_ReturnsCorrectPredicate)
{
	Expression<TestExpressionEntity, std::int32_t> expr = ::MakeExpression(&TestExpressionEntity::SetterGetterGetter);

	Predicate<TestExpressionEntity> setterGetterIsGreaterThanSetterGetter = expr > &TestExpressionEntity::SetterGetterGetter;

	SqlPredicate predicate = setterGetterIsGreaterThanSetterGetter.GetSqlPredicate(_registry);

	EXPECT_EQ(0, predicate.GetNumberOfParameters());
	EXPECT_EQ("(TestTable.SetterGetter > TestTable.SetterGetter)", predicate.GetPredicate());
}