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db.cc
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db.cc
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// satnow: db.cc
//
// Copyright 2019 Matt Davis (https://github.com/enferex)
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "db.hh"
std::vector<Tle> DBSQLite::fetchTLEs() {
std::vector<Tle> tles;
const char *q = "SELECT name, line1, line2 FROM tle;";
auto cb = [](void *tleptr, int nCols, char **row, char **colName) {
auto tles = static_cast<std::vector<Tle> *>(tleptr);
if (nCols != 3)
return SQLITE_OK;
std::string name(row[0]);
std::string line1(row[1]);
std::string line2(row[2]);
if (name.size())
tles->emplace_back(name, line1, line2);
else
tles->emplace_back(name, line1, line2);
return SQLITE_OK;
};
if (sqlite3_exec(_sql, q, cb, &tles, nullptr)) {
std::cerr << "[-] Error querying database: " << sqlite3_errmsg(_sql)
<< std::endl;
return tles;
}
return tles;
}
void DBSQLite::update(const Tle &tle) {
std::string q = "INSERT OR REPLACE INTO tle (name, norad, line1, line2) ";
q += "VALUES (\'" + tle.Name() + "\', " + std::to_string(tle.NoradNumber()) +
", \"" + tle.Line1() + "\", \"" + tle.Line2() + "\");";
sqlite3_exec(_sql, q.c_str(), nullptr, nullptr, nullptr);
}
DBSQLite::DBSQLite(const char *dbFile) {
// Open DB and if not a failure, then setup the table data.
if (!sqlite3_open(dbFile, &_sql)) {
const char *q = "CREATE TABLE IF NOT EXISTS tle "
"(timestamp TIMESTAMP DEFAULT CURRENT_TIMESTAMP, "
"norad INT PRIMARY KEY, "
"name TEXT, line1 TEXT, line2 TEXT)";
sqlite3_exec(_sql, q, nullptr, nullptr, nullptr);
}
}
DBSQLite::~DBSQLite() { sqlite3_close(_sql); }
bool DBSQLite::ok() const { return sqlite3_errcode(_sql) == SQLITE_OK; }
std::string DBSQLite::getErrorString() const { return sqlite3_errmsg(_sql); }