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authorBoris Kolpackov <boris@codesynthesis.com>2011-09-16 16:03:26 +0200
committerBoris Kolpackov <boris@codesynthesis.com>2011-09-16 16:03:26 +0200
commitf70b64e2c4f9861d7013492b609212ed78e840f5 (patch)
tree8c129a4341bbee3d1fd31ad2a2730c5de860be9c /common/view/test.hxx
parent86f71bd8525302519d1ec22ab135e662c43e8af3 (diff)
Support for views; integrated part
Diffstat (limited to 'common/view/test.hxx')
-rw-r--r--common/view/test.hxx339
1 files changed, 310 insertions, 29 deletions
diff --git a/common/view/test.hxx b/common/view/test.hxx
index 5eba5d5..3ba6745 100644
--- a/common/view/test.hxx
+++ b/common/view/test.hxx
@@ -7,11 +7,13 @@
#define TEST_HXX
#include <string>
-#include <memory>
+#include <vector>
#include <cstddef> // std::size_t
-#include <iostream>
#include <odb/core.hxx>
+#include <odb/nullable.hxx>
+
+struct employer;
#pragma db object
struct country
@@ -31,23 +33,43 @@ struct country
std::string name;
};
+enum gender_type {male, female};
+
+#pragma db value
+struct measures
+{
+ measures (unsigned short w, unsigned short h) : weight (w), hight (h) {}
+ measures () {}
+
+ unsigned short weight;
+ unsigned short hight;
+};
+
#pragma db object
struct person
{
+ typedef ::measures measures_type;
+
person (unsigned long i,
const std::string& fn,
const std::string& ln,
unsigned short a,
- country* l)
- : id (i), first_name (fn), last_name (ln), age (a), location (l)
+ gender_type g,
+ const measures_type m,
+ country* r,
+ country* n)
+ : id (i),
+ first_name_ (fn),
+ last_name_ (ln),
+ age (a),
+ gender (g),
+ measures (m),
+ residence (r),
+ nationality (n),
+ husband (0)
{
}
- ~person ()
- {
- delete location;
- }
-
person ()
{
}
@@ -56,18 +78,57 @@ struct person
unsigned long id;
#pragma db column ("first")
- std::string first_name;
+ std::string first_name_;
#pragma db column ("last")
- std::string last_name;
+ std::string last_name_;
unsigned short age;
+ // #pragma db type("INT") - in MySQL test type pragma copying
+ gender_type gender;
+
+ measures_type measures;
+
+ #pragma db not_null
+ country* residence;
+
#pragma db not_null
- country* location;
+ country* nationality;
+
+ #pragma db inverse(employees)
+ employer* employed_by;
+
+ // A non-pointer relationship.
+ //
+ odb::nullable<std::string> previous_employer;
+
+ person* husband; // Self-reference.
+};
+
+#pragma db object
+struct employer
+{
+ employer (const std::string& n)
+ : name (n)
+ {
+ }
+
+ employer ()
+ {
+ }
+
+ #pragma db id
+ std::string name;
+ std::size_t head_count;
+ std::vector<person*> employees;
};
-// General view with a custom query.
+//
+// General view with no associated objects.
+//
+
+// Complete suffix query template.
//
#pragma db view query("SELECT first, last, age FROM common_view_person")
struct view1
@@ -77,37 +138,257 @@ struct view1
unsigned short age;
};
-// Count view.
+// Complete query.
+//
+#pragma db view query("SELECT first, last, age " \
+ "FROM common_view_person " \
+ "WHERE age < 31 ORDER BY age")
+struct view1a
+{
+ std::string first;
+ std::string last;
+ unsigned short age;
+};
+
+// Complete placeholder query template.
+//
+#pragma db view query("SELECT first, last, age " \
+ "FROM common_view_person " \
+ "WHERE age < 31 AND (?) ORDER BY age")
+struct view1b
+{
+ std::string first;
+ std::string last;
+ unsigned short age;
+};
+
+// Runtime query.
//
-#pragma db view query("SELECT count(id) FROM common_view_person")
+#pragma db view query()
+struct view1c
+{
+ std::string first;
+ std::string last;
+ unsigned short age;
+};
+
+//
+// Count view plus associated object.
+//
+
+// Complete suffix query.
+//
+#pragma db view object(person) \
+ query("SELECT count(id) FROM common_view_person")
struct view2
{
std::size_t count;
};
-// Aggregate view.
+// Generated query, literal column.
+//
+#pragma db view object(person)
+struct view2a
+{
+ #pragma db column("count(id)")
+ std::size_t count;
+};
+
+// Generated query, qualified literal column.
//
-#pragma db view query("SELECT last, count(last) " \
- "FROM common_view_person " \
- "GROUP BY last")
+#pragma db view object(person)
+struct view2b
+{
+ #pragma db column("count(common_view_person.id)")
+ std::size_t count;
+};
+
+// Generated query, expression column.
+//
+#pragma db view object(person)
+struct view2c
+{
+ #pragma db column("count(" + person::id + ")")
+ std::size_t count;
+};
+
+//
+// Aggregate view plus associated object with a custom alias.
+//
+
+// Complete suffix query.
+//
+#pragma db view object(person = test) \
+ query("SELECT last, count(last) " \
+ "FROM common_view_person " \
+ "GROUP BY last")
struct view3
{
- std::string last;
+ std::string last_name;
std::size_t count;
};
-// JOIN view.
+// Generated query with integrated query condition and placeholder.
//
-#pragma db view query("SELECT first, last, common_view_country.name " \
- "FROM common_view_person " \
- "LEFT JOIN common_view_country " \
- "ON common_view_person.location = " \
- "common_view_country.code")
+#pragma db view object(person = test) \
+ query((?) + "GROUP BY" + test::last_name_)
+struct view3a
+{
+ // Automatically resolved to test::last_name_.
+ //
+ std::string last_name;
+
+ #pragma db column("count(" + test::last_name_ + ")")
+ std::size_t count;
+};
+
+//
+// JOIN view plus associated objects, some with custom aliases.
+//
+
+// Complete suffix query.
+//
+#pragma db view object(person) object(country = residence) \
+ query("SELECT first, last, residence.name " \
+ "FROM common_view_person " \
+ "LEFT JOIN common_view_country AS residence " \
+ "ON common_view_person.residence = residence.code")
struct view4
{
- std::string first;
- std::string last;
- std::string location;
+ std::string first_name;
+ std::string last_name;
+ std::string name;
+};
+
+// Generated query.
+//
+#pragma db view object(person) \
+ object(country = residence: person::residence)
+struct view4a
+{
+ std::string first_name;
+ std::string last_name;
+ std::string name;
+};
+
+//
+// JOIN the same object twice.
+//
+#pragma db view object(person) \
+ object(country = residence: person::residence) \
+ object(country = nationality: person::nationality) \
+ query((?) + "ORDER BY" + person::age)
+struct view5
+{
+ std::string first_name;
+ std::string last_name;
+
+ #pragma db column(residence::name)
+ std::string rname;
+
+ #pragma db column(nationality::name)
+ std::string nname;
+};
+
+//
+// JOIN via one(i)-to-many relationship.
+//
+
+// Automatic relationship discovery.
+//
+#pragma db view object(person) object(employer)
+struct view6
+{
+ std::string first_name;
+ std::string last_name;
+
+ #pragma db column(::employer::name)
+ std::string employer;
+};
+
+// Manual relationship specification, left side.
+//
+#pragma db view object(person) object(employer: person::employed_by)
+struct view6a
+{
+ std::string first_name;
+ std::string last_name;
+
+ #pragma db column(::employer::name)
+ std::string employer;
+};
+
+// Manual relationship specification, right side.
+//
+#pragma db view object(person) object(employer: employer::employees)
+struct view6b
+{
+ std::string first_name;
+ std::string last_name;
+
+ #pragma db column(::employer::name)
+ std::string employer;
+};
+
+//
+// JOIN via a custom condition.
+//
+#pragma db view object(person) \
+ object(employer: person::previous_employer == employer::name)\
+ query((?) + "ORDER BY" + person::age)
+struct view7
+{
+ std::string first_name;
+ std::string last_name;
+
+ odb::nullable<std::size_t> head_count;
+};
+
+//
+// Self-JOIN.
+//
+#pragma db view object(person = wife) object(person = husb) \
+ query (wife::husband.is_not_null ())
+struct view8
+{
+ #pragma db column (wife::first_name_)
+ std::string wife_name;
+
+ #pragma db column (husb::first_name_)
+ std::string husb_name;
+};
+
+//
+// Enum mapping.
+//
+#pragma db view object(person)
+struct view9
+{
+ std::string first_name;
+ std::string last_name;
+ gender_type gender;
+};
+
+//
+// Composite in view.
+//
+#pragma db view object(person) query((?) + "ORDER BY" + person::age)
+struct view10
+{
+ std::string last_name;
+ ::measures measures;
+};
+
+//
+// Composite in object.
+//
+#pragma db view object(person) query((?) + "ORDER BY" + person::age)
+struct view11
+{
+ std::string last_name;
+
+ #pragma db column (person::measures.hight)
+ unsigned short hight;
};
#endif // TEST_HXX