81f3ef458f
This will let me set up a Track class that has pointers to the corresponding artist, album and genre information without needing to know their IDs directly. Having this information available means I won't need to keep a "join struct" when doing lookups - instead I can return a pointer to a Track class that already knows everything. Signed-off-by: Anna Schumaker <schumaker.anna@gmail.com>
62 lines
1.0 KiB
C++
62 lines
1.0 KiB
C++
/*
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* Copyright 2013 (c) Anna Schumaker.
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*/
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#ifndef OCARINA_DATABASE_H
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#define OCARINA_DATABASE_H
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#include <file.h>
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#include <print.h>
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#include <map>
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#include <vector>
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class DatabaseEntry {
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public:
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bool valid;
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unsigned int id;
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DatabaseEntry();
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virtual const std::string primary_key() = 0;
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virtual void write(File &) = 0;
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virtual void read(File &) = 0;
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};
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template <class T>
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class Database {
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private:
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std::vector<T> _db;
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std::map<const std::string, unsigned int> _keys;
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unsigned int _size;
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bool _autosave;
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File _file;
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public:
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typedef typename std::vector<T>::iterator iterator;
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typedef typename std::vector<T>::const_iterator const_iterator;
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Database(std::string, bool);
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~Database();
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void save();
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void autosave();
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void load();
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unsigned int insert(T);
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void remove(unsigned int);
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unsigned int size();
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unsigned int actual_size();
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iterator begin();
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iterator end();
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iterator next(iterator &);
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iterator at(unsigned int);
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iterator find(const std::string &);
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};
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#include "database.hpp"
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#endif /* OCARINA_DATABASE_H */
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