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-rw-r--r--verbly/data.h275
1 files changed, 24 insertions, 251 deletions
diff --git a/verbly/data.h b/verbly/data.h index e901cba..37092d7 100644 --- a/verbly/data.h +++ b/verbly/data.h
@@ -1,273 +1,46 @@
1#ifndef DATA_H_C4AEC3DD 1#ifndef DATA_H_C4AEC3DD
2#define DATA_H_C4AEC3DD 2#define DATA_H_C4AEC3DD
3 3
4#include "verb.h"
5#include <sqlite3.h> 4#include <sqlite3.h>
6#include <stdexcept> 5#include <stdexcept>
7 6
8namespace verbly { 7namespace verbly {
9 8
9 class data;
10 class word;
11 class adjective;
12 class noun;
13 class verb;
14 class adverb;
15 class adjective_query;
16 class adverb_query;
17 class noun_query;
18 class verb_query;
19
10 class data { 20 class data {
11 private: 21 private:
12 sqlite3* ppdb; 22 sqlite3* ppdb;
13 23
14 public: 24 friend class adjective_query;
15 class verb_query { 25 friend class noun_query;
16 public: 26 friend class verb_query;
17 const static int unlimited = -1; 27 friend class adverb_query;
18
19 private:
20 const data& database;
21 int m_limit = unlimited;
22 bool m_random = false;
23
24 public:
25 verb_query(const data& database) : database(database)
26 {
27
28 }
29
30 verb_query& limit(int m_limit)
31 {
32 if ((m_limit > 0) || (m_limit == unlimited))
33 {
34 this->m_limit = m_limit;
35 }
36
37 return *this;
38 }
39
40 verb_query& random(bool m_random)
41 {
42 this->m_random = m_random;
43
44 return *this;
45 }
46
47 std::list<verb> run() const
48 {
49 std::stringstream construct;
50 construct << "SELECT verb_id, infinitive, past_tense, past_participle, ing_form, s_form FROM verbs";
51
52 if (m_random)
53 {
54 construct << " ORDER BY RANDOM()";
55 }
56
57 if (m_limit != unlimited)
58 {
59 construct << " LIMIT " << m_limit;
60 }
61
62 sqlite3_stmt* ppstmt;
63 std::string query = construct.str();
64 if (sqlite3_prepare_v2(database.ppdb, query.c_str(), query.length(), &ppstmt, NULL) != SQLITE_OK)
65 {
66 throw std::runtime_error(sqlite3_errmsg(database.ppdb));
67 }
68
69 std::list<verb> output;
70 while (sqlite3_step(ppstmt) == SQLITE_ROW)
71 {
72 verb tnc {sqlite3_column_int(ppstmt, 0)};
73 tnc.infinitive = std::string(reinterpret_cast<const char*>(sqlite3_column_text(ppstmt, 1)));
74 tnc.past_tense = std::string(reinterpret_cast<const char*>(sqlite3_column_text(ppstmt, 2)));
75 tnc.past_participle = std::string(reinterpret_cast<const char*>(sqlite3_column_text(ppstmt, 3)));
76 tnc.ing_form = std::string(reinterpret_cast<const char*>(sqlite3_column_text(ppstmt, 4)));
77 tnc.s_form = std::string(reinterpret_cast<const char*>(sqlite3_column_text(ppstmt, 5)));
78
79 output.push_back(tnc);
80 }
81
82 sqlite3_finalize(ppstmt);
83
84 return output;
85 }
86
87 };
88
89 class adjective_query {
90 public:
91 const static int unlimited = -1;
92
93 private:
94 const data& database;
95 int m_limit = unlimited;
96 bool m_random = false;
97
98 public:
99 adjective_query(const data& database) : database(database)
100 {
101
102 }
103
104 adjective_query& limit(int m_limit)
105 {
106 if ((m_limit > 0) || (m_limit == unlimited))
107 {
108 this->m_limit = m_limit;
109 }
110
111 return *this;
112 }
113
114 adjective_query& random(bool m_random)
115 {
116 this->m_random = m_random;
117
118 return *this;
119 }
120
121 std::list<adjective> run() const
122 {
123 std::stringstream construct;
124 construct << "SELECT adjective_id, form FROM adjectives";
125
126 if (m_random)
127 {
128 construct << " ORDER BY RANDOM()";
129 }
130
131 if (m_limit != unlimited)
132 {
133 construct << " LIMIT " << m_limit;
134 }
135
136 sqlite3_stmt* ppstmt;
137 std::string query = construct.str();
138 if (sqlite3_prepare_v2(database.ppdb, query.c_str(), query.length(), &ppstmt, NULL) != SQLITE_OK)
139 {
140 throw std::runtime_error(sqlite3_errmsg(database.ppdb));
141 }
142
143 std::list<adjective> output;
144 while (sqlite3_step(ppstmt) == SQLITE_ROW)
145 {
146 adjective tnc {sqlite3_column_int(ppstmt, 0)};
147 tnc.form = std::string(reinterpret_cast<const char*>(sqlite3_column_text(ppstmt, 1)));
148
149 output.push_back(tnc);
150 }
151
152 sqlite3_finalize(ppstmt);
153
154 return output;
155 }
156
157 };
158
159 class adverb_query {
160 public:
161 const static int unlimited = -1;
162
163 private:
164 const data& database;
165 int m_limit = unlimited;
166 bool m_random = false;
167
168 public:
169 adverb_query(const data& database) : database(database)
170 {
171
172 }
173
174 adverb_query& limit(int m_limit)
175 {
176 if ((m_limit > 0) || (m_limit == unlimited))
177 {
178 this->m_limit = m_limit;
179 }
180
181 return *this;
182 }
183
184 adverb_query& random(bool m_random)
185 {
186 this->m_random = m_random;
187
188 return *this;
189 }
190
191 std::list<adverb> run() const
192 {
193 std::stringstream construct;
194 construct << "SELECT adverb_id, form FROM adverbs";
195
196 if (m_random)
197 {
198 construct << " ORDER BY RANDOM()";
199 }
200
201 if (m_limit != unlimited)
202 {
203 construct << " LIMIT " << m_limit;
204 }
205
206 sqlite3_stmt* ppstmt;
207 std::string query = construct.str();
208 if (sqlite3_prepare_v2(database.ppdb, query.c_str(), query.length(), &ppstmt, NULL) != SQLITE_OK)
209 {
210 throw std::runtime_error(sqlite3_errmsg(database.ppdb));
211 }
212
213 std::list<adverb> output;
214 while (sqlite3_step(ppstmt) == SQLITE_ROW)
215 {
216 adverb tnc {sqlite3_column_int(ppstmt, 0)};
217 tnc.form = std::string(reinterpret_cast<const char*>(sqlite3_column_text(ppstmt, 1)));
218
219 output.push_back(tnc);
220 }
221
222 sqlite3_finalize(ppstmt);
223
224 return output;
225 }
226
227 };
228 28
229 data(std::string datafile) 29 public:
230 { 30 data(std::string datafile);
231 if (sqlite3_open_v2(datafile.c_str(), &ppdb, SQLITE_OPEN_READONLY, NULL) != SQLITE_OK)
232 {
233 throw std::invalid_argument(sqlite3_errmsg(ppdb));
234 }
235 }
236 31
237 data(const data& other) = delete; 32 data(const data& other) = delete;
238 data& operator=(const data& other) = delete; 33 data& operator=(const data& other) = delete;
239 34
240 data(data&& other) 35 data(data&& other);
241 { 36 data& operator=(data&& other);
242 ppdb = other.ppdb;
243 }
244
245 data& operator=(data&& other)
246 {
247 ppdb = other.ppdb;
248
249 return *this;
250 }
251
252 ~data()
253 {
254 sqlite3_close_v2(ppdb);
255 }
256
257 verb_query verbs() const
258 {
259 return verb_query(*this);
260 }
261 37
262 adjective_query adjectives() const 38 ~data();
263 {
264 return adjective_query(*this);
265 }
266 39
267 adverb_query adverbs() const 40 verb_query verbs() const;
268 { 41 adjective_query adjectives() const;
269 return adverb_query(*this); 42 adverb_query adverbs() const;
270 } 43 noun_query nouns() const;
271 44
272 }; 45 };
273 46
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