lib/frame.h


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78

#ifndef FRAME_H_EA29065A
#define FRAME_H_EA29065A

#include <stdexcept>
#include <list>
#include "field.h"
#include "filter.h"

struct sqlite3_stmt;

namespace verbly {
  
  class database;
  
  class frame {
  public:
    
    // Default constructor
    
    frame() = default;
    
    // Construct from database
    
    frame(const database& db, sqlite3_stmt* row);
    
    // Accessors
    
    operator bool() const
    {
      return valid_;
    }
    
    int getId() const
    {
      if (!valid_)
      {
        throw std::domain_error("Bad access to uninitialized frame");
      }
      
      return id_;
    }
    
    // Type info
    
    static const object objectType;
    
    static const std::list<std::string> select;
    
    // Query fields
    
    static const field id;
    
    operator filter() const
    {
      if (!valid_)
      {
        throw std::domain_error("Bad access to uninitialized frame");
      }
      
      return (id == id_);
    }
    
    // Relationships to other objects
    
    static const field group;
    
  private:
    bool valid_ = false;
    
    int id_;
    
    const database* db_;
    
  };
  
};

#endif /* end of include guard: FRAME_H_EA29065A */