#include <sqlite3.h>
`}
+in "C" `{
+ // Return code of the last call to the constructor of `NativeSqlite3`
+ static int nit_sqlite_open_error = SQLITE_OK;
+`}
+
+redef class Sys
+ # Last error raised when calling `Sqlite3::open`
+ fun sqlite_open_error: Sqlite3Code `{ return nit_sqlite_open_error; `}
+end
+
extern class Sqlite3Code `{int`}
new ok `{ return SQLITE_OK; `} # 0 /* Successful result */
- fun is_ok: Bool `{ return recv == SQLITE_OK; `}
+ fun is_ok: Bool `{ return self == SQLITE_OK; `}
# new `{ return SQLITE_ERROR; `} # 1 /* SQL error or missing database */
# new `{ return SQLITE_INTERNAL; `} # 2 /* Internal logic error in SQLite */
# new `{ return SQLITE_WARNING; `} # 28 /* Warnings from sqlite3_log() */
new row `{ return SQLITE_ROW; `} # 100 /* sqlite3_step() has another row ready */
- fun is_row: Bool `{ return recv == SQLITE_ROW; `}
+ fun is_row: Bool `{ return self == SQLITE_ROW; `}
new done `{ return SQLITE_DONE; `} # 101 /* sqlite3_step() has finished executing */
- fun is_done: Bool `{ return recv == SQLITE_DONE; `}
+ fun is_done: Bool `{ return self == SQLITE_DONE; `}
+
+ redef fun to_s
+ do
+ var err = native_to_s
+ if err.address_is_null then return "Unknown error"
+ return err.to_s
+ end
- redef fun to_s: String import NativeString.to_s `{
+ private fun native_to_s: CString `{
#if SQLITE_VERSION_NUMBER >= 3007015
- char *err = (char *)sqlite3_errstr(recv);
+ return (char *)sqlite3_errstr(self);
#else
- char *err = "sqlite3_errstr supported only by version >= 3.7.15";
+ return "sqlite3_errstr is not supported in version < 3.7.15";
#endif
- if (err == NULL) err = "";
- return NativeString_to_s(err);
`}
end
# Evaluate the statement
fun step: Sqlite3Code `{
- return sqlite3_step(recv);
+ return sqlite3_step(self);
`}
- fun column_name(i: Int) : String import NativeString.to_s `{
- const char * name = (sqlite3_column_name(recv, i));
- if(name == NULL){
- name = "";
- }
- char * ret = (char *) name;
- return NativeString_to_s(ret);
+ fun column_name(i: Int): CString `{
+ return (char *)sqlite3_column_name(self, i);
`}
+ # Number of bytes in the blob or string at row `i`
fun column_bytes(i: Int) : Int `{
- return sqlite3_column_bytes(recv, i);
+ return sqlite3_column_bytes(self, i);
`}
fun column_double(i: Int) : Float `{
- return sqlite3_column_double(recv, i);
+ return sqlite3_column_double(self, i);
`}
fun column_int(i: Int) : Int `{
- return sqlite3_column_int(recv, i);
+ return sqlite3_column_int(self, i);
`}
- fun column_text(i: Int) : String import NativeString.to_s `{
- char * ret = (char *) sqlite3_column_text(recv, i);
- if( ret == NULL ){
- ret = "";
- }
- return NativeString_to_s(ret);
+ fun column_text(i: Int): CString `{
+ return (char *)sqlite3_column_text(self, i);
`}
- fun column_type(i: Int) : Int `{
- return sqlite3_column_type(recv, i);
+ # Type of the entry at row `i`
+ fun column_type(i: Int): DataType `{
+ return sqlite3_column_type(self, i);
`}
- fun column_blob(i: Int): Pointer `{ return (void*)sqlite3_column_blob(recv, i); `}
+ fun column_blob(i: Int): Pointer `{ return (void*)sqlite3_column_blob(self, i); `}
fun column_count: Int `{
- return sqlite3_column_count(recv);
+ return sqlite3_column_count(self);
`}
# Reset this statement to its original state, to be reexecuted
- fun reset: Sqlite3Code `{ return sqlite3_reset(recv); `}
+ fun reset: Sqlite3Code `{ return sqlite3_reset(self); `}
# Delete this statement
- fun finalize: Sqlite3Code `{ return sqlite3_finalize(recv); `}
+ fun finalize: Sqlite3Code `{ return sqlite3_finalize(self); `}
end
# A database connection
extern class NativeSqlite3 `{sqlite3 *`}
# Open a connection to a database in UTF-8
- new open(filename: String) import String.to_cstring `{
+ new open(filename: CString) `{
sqlite3 *self = NULL;
- sqlite3_open(String_to_cstring(filename), &self);
+ int err = sqlite3_open(filename, &self);
+ nit_sqlite_open_error = err;
return self;
`}
# To know if it has been closed or interrupted, you must check for errors with `error`.
fun is_valid: Bool do return not address_is_null
- fun destroy do close
-
# Close this connection
- fun close `{ sqlite3_close_v2(recv); `}
+ fun close `{
+#if SQLITE_VERSION_NUMBER >= 3007014
+ sqlite3_close_v2(self);
+#else
+ // A program using the older version should not rely on the garbage-collector
+ // to close its connections. They must be closed manually after the associated
+ // prepare statements have been finalized.
+ sqlite3_close(self);
+#endif
+ `}
# Execute a SQL statement
- fun exec(sql: String): Sqlite3Code import String.to_cstring `{
- return sqlite3_exec(recv, String_to_cstring(sql), 0, 0, 0);
+ fun exec(sql: CString): Sqlite3Code `{
+ return sqlite3_exec(self, sql, NULL, NULL, NULL);
`}
# Prepare a SQL statement
- fun prepare(sql: String): nullable NativeStatement import String.to_cstring, NativeStatement.as nullable `{
+ fun prepare(sql: CString): NativeStatement `{
sqlite3_stmt *stmt;
- int res = sqlite3_prepare_v2(recv, String_to_cstring(sql), -1, &stmt, 0);
+ int res = sqlite3_prepare_v2(self, sql, -1, &stmt, 0);
if (res == SQLITE_OK)
- return NativeStatement_as_nullable(stmt);
+ return stmt;
else
- return null_NativeStatement();
+ return NULL;
`}
fun last_insert_rowid: Int `{
- return sqlite3_last_insert_rowid(recv);
+ return sqlite3_last_insert_rowid(self);
`}
fun error: Sqlite3Code `{
- return sqlite3_errcode(recv);
+ return sqlite3_errcode(self);
`}
end
+
+# Sqlite data types
+extern class DataType `{ int `}
+ fun is_integer: Bool `{ return self == SQLITE_INTEGER; `}
+ fun is_float: Bool `{ return self == SQLITE_FLOAT; `}
+ fun is_blob: Bool `{ return self == SQLITE_BLOB; `}
+ fun is_null: Bool `{ return self == SQLITE_NULL; `}
+ fun is_text: Bool `{ return self == SQLITE_TEXT; `}
+
+ fun to_i: Int `{ return self; `}
+end
nitlanguage / nit.git / blobdiff