C++ type mapping support for data members

1 files changed, 159 insertions, 0 deletions

diff --git a/common/as/test.hxx b/common/as/test.hxx
new file mode 100644
index 0000000..4839f18
--- /dev/null
+++ b/common/as/test.hxx
@@ -0,0 +1,159 @@
+// file      : common/as/test.hxx
+// copyright : Copyright (c) 2009-2015 Code Synthesis Tools CC
+// license   : GNU GPL v2; see accompanying LICENSE file
+
+#ifndef TEST_HXX
+#define TEST_HXX
+
+#include <map>
+#include <vector>
+#include <string>
+#include <utility> // pair
+
+#include <odb/core.hxx>
+#include <odb/nullable.hxx>
+
+// Test basic type mapping functionality.
+//
+#pragma db namespace table("t1_")
+namespace test1
+{
+  typedef std::pair<int, int> intp;
+
+  #pragma db value
+  struct comp
+  {
+    comp () {}
+    comp (int n1_, int n2_): n1 (n1_), n2 (n2_) {}
+
+    int n1;
+    int n2;
+  };
+
+  #pragma db map type(intp) as(comp)        \
+    to(test1::comp ((?).first, (?).second)) \
+    from(test1::intp ((?).n1, (?).n2))
+
+  #pragma db object
+  struct object
+  {
+    // Class-scope mapping.
+    //
+    #pragma db map type(bool) as(std::string) \
+    to((?) ? "true" : "false")                \
+    from((?) == "true")
+
+    #pragma db id auto
+    unsigned long id;
+
+    bool b;
+    intp ip;
+
+    #pragma db transient
+    std::map<bool, int> m;
+
+    #pragma db transient
+    std::vector<intp> v;
+
+    object () {}
+    object (bool b_, int n1, int n2): b (b_), ip (n1, n2) {}
+  };
+
+  inline bool
+  operator== (const object& x, const object y)
+  {
+    return x.b == y.b && x.ip == y.ip /*&& x.m == y.m && x.v == y.v*/;
+  }
+}
+
+// Test wrapped simple type mapping.
+//
+#pragma db namespace table("t2_")
+namespace test2
+{
+  #pragma db map type(bool) as(std::string) \
+    to((?) ? "true" : "false")              \
+    from((?) == "true")
+
+  typedef odb::nullable<bool> null_bool;
+  typedef odb::nullable<std::string> null_string;
+
+  /*
+  #pragma db map type(null_bool) as(null_string)                        \
+    to((?)                                                              \
+       ? test2::null_string (*(?) ? "true" : "false")                   \
+       : test2::null_string ())                                         \
+    from((?)                                                            \
+         ? test2::null_bool (*(?) == "true")                            \
+         : test2::null_bool ())
+  */
+
+  #pragma db map type(null_bool) as(std::string)                        \
+    to((?) ? (*(?) ? "true" : "false") : "null")                        \
+    from((?) != "null"                                                  \
+         ? test2::null_bool ((?) == "true")                             \
+         : test2::null_bool ())
+
+  #pragma db object
+  struct object
+  {
+    #pragma db id auto
+    unsigned long id;
+
+    odb::nullable<bool> b;
+  };
+}
+
+// Test wrapped simple type mapping.
+//
+#pragma db namespace table("t3_")
+namespace test3
+{
+  typedef std::pair<int, int> intp;
+
+  #pragma db value
+  struct comp
+  {
+    comp () {}
+    comp (int n1_, int n2_): n1 (n1_), n2 (n2_) {}
+
+    int n1;
+    int n2;
+  };
+
+  typedef odb::nullable<intp> null_intp;
+  typedef odb::nullable<comp> null_comp;
+
+  #pragma db map type(null_intp) as(null_comp)                          \
+    to((?)                                                              \
+       ? test3::null_comp (test3::comp ((?)->first, (?)->second))       \
+       : test3::null_comp ())                                           \
+    from((?)                                                            \
+         ? test3::null_intp (test3::intp ((?)->n1, (?)->n2))            \
+         : test3::null_intp ())
+
+  // Map int pair with both members equal 0 to NULL comp.
+  //
+  #pragma db map type(intp) as(null_comp)                               \
+    to((?).first != 0 || (?).second != 0                                \
+       ? test3::null_comp (test3::comp ((?).first, (?).second))         \
+       : test3::null_comp ())                                           \
+    from((?)                                                            \
+         ? test3::intp (test3::intp ((?)->n1, (?)->n2))                 \
+         : test3::intp (0, 0))
+
+  #pragma db object
+  struct object
+  {
+    #pragma db id auto
+    unsigned long id;
+
+    odb::nullable<intp> np;
+    intp ip;
+  };
+}
+
+//@@ Test wrapped id and version.
+//@@ Containers.
+
+#endif // TEST_HXX