open html file when table needs to be opened. need to store reference to file in member variable

Author: maxbeutel

storage/example/ha_example.cc

@@ -91,8 +91,6 @@
 #pragma implementation // gcc: Class implementation
 #endif
 
-// include them before any other headers which might include my_global.h
-// see https://trac.osgeo.org/gdal/ticket/2972
 #include <fstream>
 #include <cassert>
 
@@ -390,13 +388,27 @@ static bool example_is_supported_system_table(const char *db,
 
 int ha_example::open(const char *name, int mode, uint test_if_locked)
 {
- DBUG_ENTER("ha_example::open");
+  DBUG_ENTER("ha_example::open");
 
- if (!(share = get_share(name, table)))
- DBUG_RETURN(1);
- thr_lock_data_init(&share->lock,&lock,NULL);
+  if (!(share = get_share(name, table))) {
+  DBUG_RETURN(1);
+  }
 
- DBUG_RETURN(0);
+ thr_lock_data_init(&share->lock, &lock, NULL);
+
+ String table_file_pathname;
+ table_file_pathname.append(name);
+ table_file_pathname.append(*bas_ext());
+
+ DBUG_PRINT("ha_example", ("filename is '%s'", table_file_pathname.c_ptr()));
+
+ std::ofstream table_file;
+ table_file.open(table_file_pathname.c_ptr());
+ assert(table_file.is_open());
+
+ // open_table_file = table_file;
+
+ DBUG_RETURN(0);
 }
 
 
@@ -1026,17 +1038,24 @@ int ha_example::create(const char *name, TABLE *table_arg, HA_CREATE_INFO *creat
 {
  DBUG_ENTER("ha_example::create");
 
- String file_name;
- file_name.append(name);
- file_name.append(*bas_ext());
+ String table_file_pathname;
+ table_file_pathname.append(name);
+ table_file_pathname.append(*bas_ext());
 
- DBUG_PRINT("ha_example", ("filename is '%s'", file_name.c_ptr()));
+ DBUG_PRINT("ha_example", ("filename is '%s'", table_file_pathname.c_ptr()));
 
  std::ofstream table_file;
- table_file.open(file_name.c_ptr());
+ table_file.open(table_file_pathname.c_ptr());
  assert(table_file.is_open());
 
  table_file << "<h1>Contents of " << table_arg->s->table_name.str << "</h1>\n";
+ table_file << "<ul>\n";
+
+ for (uint i = 0; i < table_arg->s->fields; i++) {
+ table_file << "<li>" << table_arg->field[i]->field_name << "</li>\n";
+ }
+
+ table_file << "</ul>\n";
 
  table_file.close();
 

storage/example/ha_example.h

@@ -35,6 +35,10 @@
 #pragma interface/* gcc class implementation */
 #endif
 
+// include c++ standard headers before any other headers which might include my_global.h
+// see https://trac.osgeo.org/gdal/ticket/2972
+#include <fstream>
+
 #include "my_global.h" /* ulonglong */
 #include "thr_lock.h" /* THR_LOCK, THR_LOCK_DATA */
 #include "handler.h" /* handler */
@@ -59,6 +63,9 @@ class ha_example: public handler
  THR_LOCK_DATA lock; ///< MySQL lock
  EXAMPLE_SHARE *share; ///< Shared lock info
 
+private:
+ std::ofstream open_table_file;
+
 public:
  ha_example(handlerton *hton, TABLE_SHARE *table_arg);
  ~ha_example()