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Added method "tableExist" to RetroDb.

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This commit is contained in:
thunder2 2015-08-15 14:50:51 +02:00
parent 3665238e61
commit 6ac107a954
2 changed files with 57 additions and 17 deletions
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37
libretroshare/src/util/retrodb.cc
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@ -557,6 +557,43 @@ bool RetroDb::sqlUpdate(const std::string &tableName, std::string whereClause, c
return execSQL_bind(sqlQuery, paramBindings);
}
bool RetroDb::tableExists(const std::string &tableName)
{
if (!isOpen()) {
return false;
}
std::string sqlQuery = "PRAGMA table_info(" + tableName + ");";
bool result = false;
sqlite3_stmt* stmt = NULL;
int rc = sqlite3_prepare_v2(mDb, sqlQuery.c_str(), sqlQuery.length(), &stmt, NULL);
if (rc == SQLITE_OK) {
rc = sqlite3_step(stmt);
switch (rc) {
case SQLITE_ROW:
result = true;
break;
case SQLITE_DONE:
break;
default:
std::cerr << "RetroDb::tableExists(): Error executing statement (code: " << rc << ")"
<< std::endl;
return false;
}
} else {
std::cerr << "RetroDb::tableExists(): Error preparing statement\n";
std::cerr << "Error code: " << sqlite3_errmsg(mDb)
<< std::endl;
}
if (stmt) {
sqlite3_finalize(stmt);
}
return result;
}
/********************** RetroCursor ************************/