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Added usage examples for count and exists

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rbock
2015-05-13 07:58:43 +02:00
parent bcc085f819
commit 7b750bbe97
1 changed files with 4 additions and 0 deletions
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4
tests/FunctionTest.cpp
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@@ -195,6 +195,8 @@ int main()
static_assert(sqlpp::is_boolean_t<TT>::value, "type requirement");
static_assert(not sqlpp::is_numeric_t<TT>::value, "type requirement");
static_assert(not sqlpp::is_text_t<TT>::value, "type requirement");
if (db(select(exists(select(t.alpha).from(t).where(true)))).front().exists) { /* do something */ }
}
@@ -281,6 +283,8 @@ int main()
static_assert(sqlpp::is_numeric_t<TT>::value, "type requirement");
static_assert(sqlpp::is_integral_t<TT>::value, "type requirement");
static_assert(not sqlpp::is_floating_point_t<TT>::value, "type requirement");
if (db(select(count(t.alpha)).from(t).where(true)).front().count) { /* do something */ }
}
// Test max