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zauguinzauguin
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Merge pull request #81 from zauguin/errorcodes
Expose error codes in exceptions
2 parents 1d7747f + a22241e commit 8416bd7

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-33
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3 files changed

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‎README.md‎

Lines changed: 2 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -284,6 +284,7 @@ Errors
284284
----
285285
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On error, the library throws an error class indicating the type of error. The error classes are derived from the SQLITE3 error names, so if the error code is SQLITE_CONSTRAINT, the error class thrown is sqlite::exceptions::constraint. Note that all errors are derived from sqlite::sqlite_exception and that itself is derived from std::runtime_exception.
287+
sqlite::sqlite_exception has a get_code() member function to get the SQLITE3 error code.
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```c++
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database db(":memory:");
@@ -297,7 +298,7 @@ On error, the library throws an error class indicating the type of error. The er
297298
/* if you are trying to catch all sqlite related exceptions
298299
* make sure to catch them by reference */
299300
catch (sqlite_exception& e) {
300-
cerr << e.what() << endl;
301+
cerr << e.get_code() << ": " << e.what() << endl;
301302
}
302303
/* you can catch specific exceptions as well,
303304
catch(sqlite::exceptions::constraint e) { } */

‎hdr/sqlite_modern_cpp.h‎

Lines changed: 36 additions & 31 deletions
Original file line numberDiff line numberDiff line change
@@ -28,8 +28,13 @@
2828

2929
namespace sqlite {
3030

31-
struct sqlite_exception: public std::runtime_error {
32-
sqlite_exception(const char* msg):runtime_error(msg) {}
31+
class sqlite_exception: public std::runtime_error {
32+
public:
33+
sqlite_exception(const char* msg, int code = -1): runtime_error(msg), code(code) {}
34+
sqlite_exception(int code): runtime_error(sqlite3_errstr(code)), code(code) {}
35+
int get_code() {return code;}
36+
private:
37+
int code;
3338
};
3439

3540
namespace exceptions {
@@ -70,33 +75,33 @@ namespace sqlite {
7075
class no_rows: public sqlite_exception { using sqlite_exception::sqlite_exception; };
7176

7277
static void throw_sqlite_error(const int& error_code) {
73-
if(error_code == SQLITE_ERROR) throw exceptions::error(sqlite3_errstr(error_code));
74-
else if(error_code == SQLITE_INTERNAL) throw exceptions::internal (sqlite3_errstr(error_code));
75-
else if(error_code == SQLITE_PERM) throw exceptions::perm(sqlite3_errstr(error_code));
76-
else if(error_code == SQLITE_ABORT) throw exceptions::abort(sqlite3_errstr(error_code));
77-
else if(error_code == SQLITE_BUSY) throw exceptions::busy(sqlite3_errstr(error_code));
78-
else if(error_code == SQLITE_LOCKED) throw exceptions::locked(sqlite3_errstr(error_code));
79-
else if(error_code == SQLITE_NOMEM) throw exceptions::nomem(sqlite3_errstr(error_code));
80-
else if(error_code == SQLITE_READONLY) throw exceptions::readonly(sqlite3_errstr(error_code));
81-
else if(error_code == SQLITE_INTERRUPT) throw exceptions::interrupt(sqlite3_errstr(error_code));
82-
else if(error_code == SQLITE_IOERR) throw exceptions::ioerr(sqlite3_errstr(error_code));
83-
else if(error_code == SQLITE_CORRUPT) throw exceptions::corrupt(sqlite3_errstr(error_code));
84-
else if(error_code == SQLITE_NOTFOUND) throw exceptions::notfound(sqlite3_errstr(error_code));
85-
else if(error_code == SQLITE_FULL) throw exceptions::full(sqlite3_errstr(error_code));
86-
else if(error_code == SQLITE_CANTOPEN) throw exceptions::cantopen(sqlite3_errstr(error_code));
87-
else if(error_code == SQLITE_PROTOCOL) throw exceptions::protocol(sqlite3_errstr(error_code));
88-
else if(error_code == SQLITE_EMPTY) throw exceptions::empty(sqlite3_errstr(error_code));
89-
else if(error_code == SQLITE_SCHEMA) throw exceptions::schema(sqlite3_errstr(error_code));
90-
else if(error_code == SQLITE_TOOBIG) throw exceptions::toobig(sqlite3_errstr(error_code));
91-
else if(error_code == SQLITE_CONSTRAINT) throw exceptions::constraint(sqlite3_errstr(error_code));
92-
else if(error_code == SQLITE_MISMATCH) throw exceptions::mismatch(sqlite3_errstr(error_code));
93-
else if(error_code == SQLITE_MISUSE) throw exceptions::misuse(sqlite3_errstr(error_code));
94-
else if(error_code == SQLITE_NOLFS) throw exceptions::nolfs(sqlite3_errstr(error_code));
95-
else if(error_code == SQLITE_AUTH) throw exceptions::auth(sqlite3_errstr(error_code));
96-
else if(error_code == SQLITE_FORMAT) throw exceptions::format(sqlite3_errstr(error_code));
97-
else if(error_code == SQLITE_RANGE) throw exceptions::range(sqlite3_errstr(error_code));
98-
else if(error_code == SQLITE_NOTADB) throw exceptions::notadb(sqlite3_errstr(error_code));
99-
else throw sqlite_exception(sqlite3_errstr(error_code));
78+
if(error_code == SQLITE_ERROR) throw exceptions::error(error_code);
79+
else if(error_code == SQLITE_INTERNAL) throw exceptions::internal (error_code);
80+
else if(error_code == SQLITE_PERM) throw exceptions::perm(error_code);
81+
else if(error_code == SQLITE_ABORT) throw exceptions::abort(error_code);
82+
else if(error_code == SQLITE_BUSY) throw exceptions::busy(error_code);
83+
else if(error_code == SQLITE_LOCKED) throw exceptions::locked(error_code);
84+
else if(error_code == SQLITE_NOMEM) throw exceptions::nomem(error_code);
85+
else if(error_code == SQLITE_READONLY) throw exceptions::readonly(error_code);
86+
else if(error_code == SQLITE_INTERRUPT) throw exceptions::interrupt(error_code);
87+
else if(error_code == SQLITE_IOERR) throw exceptions::ioerr(error_code);
88+
else if(error_code == SQLITE_CORRUPT) throw exceptions::corrupt(error_code);
89+
else if(error_code == SQLITE_NOTFOUND) throw exceptions::notfound(error_code);
90+
else if(error_code == SQLITE_FULL) throw exceptions::full(error_code);
91+
else if(error_code == SQLITE_CANTOPEN) throw exceptions::cantopen(error_code);
92+
else if(error_code == SQLITE_PROTOCOL) throw exceptions::protocol(error_code);
93+
else if(error_code == SQLITE_EMPTY) throw exceptions::empty(error_code);
94+
else if(error_code == SQLITE_SCHEMA) throw exceptions::schema(error_code);
95+
else if(error_code == SQLITE_TOOBIG) throw exceptions::toobig(error_code);
96+
else if(error_code == SQLITE_CONSTRAINT) throw exceptions::constraint(error_code);
97+
else if(error_code == SQLITE_MISMATCH) throw exceptions::mismatch(error_code);
98+
else if(error_code == SQLITE_MISUSE) throw exceptions::misuse(error_code);
99+
else if(error_code == SQLITE_NOLFS) throw exceptions::nolfs(error_code);
100+
else if(error_code == SQLITE_AUTH) throw exceptions::auth(error_code);
101+
else if(error_code == SQLITE_FORMAT) throw exceptions::format(error_code);
102+
else if(error_code == SQLITE_RANGE) throw exceptions::range(error_code);
103+
else if(error_code == SQLITE_NOTADB) throw exceptions::notadb(error_code);
104+
else throw sqlite_exception(error_code);
100105
}
101106
}
102107

@@ -183,11 +188,11 @@ namespace sqlite {
183188
if((hresult = sqlite3_step(_stmt.get())) == SQLITE_ROW) {
184189
call_back();
185190
} else if(hresult == SQLITE_DONE) {
186-
throw exceptions::no_rows("no rows to extract: exactly 1 row expected");
191+
throw exceptions::no_rows("no rows to extract: exactly 1 row expected", SQLITE_DONE);
187192
}
188193

189194
if((hresult = sqlite3_step(_stmt.get())) == SQLITE_ROW) {
190-
throw exceptions::more_rows("not all rows extracted");
195+
throw exceptions::more_rows("not all rows extracted", SQLITE_ROW);
191196
}
192197

193198
if(hresult != SQLITE_DONE) {

‎tests/exceptions.cc‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -17,7 +17,7 @@ int main() {
1717
// inserting again to produce error
1818
db << "INSERT INTO person (id,name) VALUES (?,?)" << 1 << "jack";
1919
} catch (sqlite_exception& e) {
20-
cerr << e.what() << endl;
20+
cerr << e.get_code() << ": " << e.what() << endl;
2121
expception_thrown = true;
2222
} catch (...) {
2323
cerr << "Ok, we have our excpetion thrown" << endl;

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