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authorBoris Kolpackov <boris@codesynthesis.com>2010-11-30 18:13:45 +0200
committerBoris Kolpackov <boris@codesynthesis.com>2010-11-30 18:13:45 +0200
commitfe69aa1a2b29e577b86026f7bb56a19f5b3bdfef (patch)
treeb2318cae2cabd5cd534fe351d850049e36bfa38d /container/driver.cxx
parentb498f6525ac1953b5ef4fdf3f027138c00c1ea19 (diff)
Add container example
Diffstat (limited to 'container/driver.cxx')
-rw-r--r--container/driver.cxx120
1 files changed, 120 insertions, 0 deletions
diff --git a/container/driver.cxx b/container/driver.cxx
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+// file : container/driver.cxx
+// author : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : not copyrighted - public domain
+
+#include <memory> // std::auto_ptr
+#include <iostream>
+
+#include <odb/database.hxx>
+#include <odb/transaction.hxx>
+
+#include "database.hxx" // create_database
+
+#include "person.hxx"
+#include "person-odb.hxx"
+
+using namespace std;
+using namespace odb;
+
+void
+print (const person& p)
+{
+ cout << p.first () << " " << p.last () << endl;
+
+ // Print nicknames.
+ //
+ for (person::name_list::const_iterator i (p.nicknames ().begin ());
+ i != p.nicknames ().end (); ++i)
+ {
+ cout << " nickname: " << *i << endl;
+ }
+
+ // Print emails.
+ //
+ for (person::email_set::const_iterator i (p.emails ().begin ());
+ i != p.emails ().end (); ++i)
+ {
+ cout << " email: " << *i << endl;
+ }
+
+ // Print weights.
+ //
+ for (person::age_weight_map::const_iterator i (p.age_weight ().begin ());
+ i != p.age_weight ().end (); ++i)
+ {
+ cout << " weight at " << i->first << ": " << i->second << endl;
+ }
+}
+
+int
+main (int argc, char* argv[])
+{
+ try
+ {
+ auto_ptr<database> db (create_database (argc, argv));
+
+ unsigned long id;
+
+ // Create a persistent person objects.
+ //
+ {
+ person joe ("Joe", "Dirt");
+
+ joe.nicknames ().push_back ("JD");
+ joe.nicknames ().push_back ("Squeaky");
+
+ joe.emails ().insert ("joe@example.com");
+ joe.emails ().insert ("joe.dirt@example.com");
+
+ joe.age_weight ()[5] = 15.6F;
+ joe.age_weight ()[10] = 23.3F;
+ joe.age_weight ()[15] = 29.8F;
+
+ transaction t (db->begin ());
+ id = db->persist (joe);
+ t.commit ();
+ }
+
+ // Load the object and print what we've got. Then change some
+ // information and update it in the database.
+ //
+ {
+ transaction t1 (db->begin ());
+ auto_ptr<person> j (db->load<person> (id));
+ t1.commit ();
+
+ print (*j);
+
+ // Ann another nickname.
+ //
+ j->nicknames ().push_back ("Cleaner");
+
+ // The joe@example.com email is no longer working.
+ //
+ j->emails ().erase ("joe@example.com");
+
+ // Update a weight sample.
+ //
+ j->age_weight ()[15] = 28.8F;
+
+ transaction t2 (db->begin ());
+ db->update (*j);
+ t2.commit ();
+ }
+
+ // Load and print the updated object.
+ //
+ {
+ transaction t (db->begin ());
+ auto_ptr<person> j (db->load<person> (id));
+ t.commit ();
+
+ print (*j);
+ }
+ }
+ catch (const odb::exception& e)
+ {
+ cerr << e.what () << endl;
+ return 1;
+ }
+}