diff options
Diffstat (limited to 'lib/verb_query.cpp')
| -rw-r--r-- | lib/verb_query.cpp | 170 |
1 files changed, 170 insertions, 0 deletions
| diff --git a/lib/verb_query.cpp b/lib/verb_query.cpp new file mode 100644 index 0000000..173a04e --- /dev/null +++ b/lib/verb_query.cpp | |||
| @@ -0,0 +1,170 @@ | |||
| 1 | #include "verbly.h" | ||
| 2 | |||
| 3 | namespace verbly { | ||
| 4 | |||
| 5 | verb_query::verb_query(const data& _data) : _data(_data) | ||
| 6 | { | ||
| 7 | |||
| 8 | } | ||
| 9 | |||
| 10 | verb_query& verb_query::limit(int _limit) | ||
| 11 | { | ||
| 12 | if ((_limit > 0) || (_limit == unlimited)) | ||
| 13 | { | ||
| 14 | this->_limit = _limit; | ||
| 15 | } | ||
| 16 | |||
| 17 | return *this; | ||
| 18 | } | ||
| 19 | |||
| 20 | verb_query& verb_query::random() | ||
| 21 | { | ||
| 22 | this->_random = true; | ||
| 23 | |||
| 24 | return *this; | ||
| 25 | } | ||
| 26 | |||
| 27 | verb_query& verb_query::except(const verb& _word) | ||
| 28 | { | ||
| 29 | _except.push_back(_word); | ||
| 30 | |||
| 31 | return *this; | ||
| 32 | } | ||
| 33 | |||
| 34 | verb_query& verb_query::rhymes_with(const word& _word) | ||
| 35 | { | ||
| 36 | for (auto rhyme : _word.rhyme_phonemes()) | ||
| 37 | { | ||
| 38 | _rhymes.push_back(rhyme); | ||
| 39 | } | ||
| 40 | |||
| 41 | if (dynamic_cast<const verb*>(&_word) != nullptr) | ||
| 42 | { | ||
| 43 | _except.push_back(dynamic_cast<const verb&>(_word)); | ||
| 44 | } | ||
| 45 | |||
| 46 | return *this; | ||
| 47 | } | ||
| 48 | |||
| 49 | verb_query& verb_query::has_pronunciation() | ||
| 50 | { | ||
| 51 | this->_has_prn = true; | ||
| 52 | |||
| 53 | return *this; | ||
| 54 | } | ||
| 55 | |||
| 56 | verb_query& verb_query::has_frames() | ||
| 57 | { | ||
| 58 | this->_has_frames = true; | ||
| 59 | |||
| 60 | return *this; | ||
| 61 | } | ||
| 62 | |||
| 63 | std::list<verb> verb_query::run() const | ||
| 64 | { | ||
| 65 | std::stringstream construct; | ||
| 66 | construct << "SELECT verb_id, infinitive, past_tense, past_participle, ing_form, s_form FROM verbs"; | ||
| 67 | std::list<std::string> conditions; | ||
| 68 | |||
| 69 | if (_has_prn) | ||
| 70 | { | ||
| 71 | conditions.push_back("verb_id IN (SELECT verb_id FROM verb_pronunciations)"); | ||
| 72 | } | ||
| 73 | |||
| 74 | if (!_rhymes.empty()) | ||
| 75 | { | ||
| 76 | std::list<std::string> clauses(_rhymes.size(), "pronunciation LIKE @RHMPRN"); | ||
| 77 | std::string cond = "verb_id IN (SELECT verb_id FROM verb_pronunciations WHERE " + verbly::implode(std::begin(clauses), std::end(clauses), " OR ") + ")"; | ||
| 78 | conditions.push_back(cond); | ||
| 79 | } | ||
| 80 | |||
| 81 | for (auto except : _except) | ||
| 82 | { | ||
| 83 | conditions.push_back("verb_id != @EXCID"); | ||
| 84 | } | ||
| 85 | |||
| 86 | if (!_has_frames) | ||
| 87 | { | ||
| 88 | conditions.push_back("verb_id IN (SELECT verb_id FROM verb_groups)"); | ||
| 89 | } | ||
| 90 | |||
| 91 | if (!conditions.empty()) | ||
| 92 | { | ||
| 93 | construct << " WHERE "; | ||
| 94 | construct << verbly::implode(std::begin(conditions), std::end(conditions), " AND "); | ||
| 95 | } | ||
| 96 | |||
| 97 | if (_random) | ||
| 98 | { | ||
| 99 | construct << " ORDER BY RANDOM()"; | ||
| 100 | } | ||
| 101 | |||
| 102 | if (_limit != unlimited) | ||
| 103 | { | ||
| 104 | construct << " LIMIT " << _limit; | ||
| 105 | } | ||
| 106 | |||
| 107 | sqlite3_stmt* ppstmt; | ||
| 108 | std::string query = construct.str(); | ||
| 109 | if (sqlite3_prepare_v2(_data.ppdb, query.c_str(), query.length(), &ppstmt, NULL) != SQLITE_OK) | ||
| 110 | { | ||
| 111 | throw std::runtime_error(sqlite3_errmsg(_data.ppdb)); | ||
| 112 | } | ||
| 113 | |||
| 114 | if (!_rhymes.empty()) | ||
| 115 | { | ||
| 116 | int i = 0; | ||
| 117 | for (auto rhyme : _rhymes) | ||
| 118 | { | ||
| 119 | std::string rhymer = "%" + rhyme; | ||
| 120 | sqlite3_bind_text(ppstmt, sqlite3_bind_parameter_index(ppstmt, "@RHMPRN"), rhymer.c_str(), rhymer.length(), SQLITE_STATIC); | ||
| 121 | |||
| 122 | i++; | ||
| 123 | } | ||
| 124 | } | ||
| 125 | |||
| 126 | for (auto except : _except) | ||
| 127 | { | ||
| 128 | sqlite3_bind_int(ppstmt, sqlite3_bind_parameter_index(ppstmt, "@EXCID"), except._id); | ||
| 129 | } | ||
| 130 | |||
| 131 | std::list<verb> output; | ||
| 132 | while (sqlite3_step(ppstmt) == SQLITE_ROW) | ||
| 133 | { | ||
| 134 | verb tnc {_data, sqlite3_column_int(ppstmt, 0)}; | ||
| 135 | tnc._infinitive = std::string(reinterpret_cast<const char*>(sqlite3_column_text(ppstmt, 1))); | ||
| 136 | tnc._past_tense = std::string(reinterpret_cast<const char*>(sqlite3_column_text(ppstmt, 2))); | ||
| 137 | tnc._past_participle = std::string(reinterpret_cast<const char*>(sqlite3_column_text(ppstmt, 3))); | ||
| 138 | tnc._ing_form = std::string(reinterpret_cast<const char*>(sqlite3_column_text(ppstmt, 4))); | ||
| 139 | tnc._s_form = std::string(reinterpret_cast<const char*>(sqlite3_column_text(ppstmt, 5))); | ||
| 140 | |||
| 141 | output.push_back(tnc); | ||
| 142 | } | ||
| 143 | |||
| 144 | sqlite3_finalize(ppstmt); | ||
| 145 | |||
| 146 | for (auto& verb : output) | ||
| 147 | { | ||
| 148 | query = "SELECT pronunciation FROM verb_pronunciations WHERE verb_id = ?"; | ||
| 149 | if (sqlite3_prepare_v2(_data.ppdb, query.c_str(), query.length(), &ppstmt, NULL) != SQLITE_OK) | ||
| 150 | { | ||
| 151 | throw std::runtime_error(sqlite3_errmsg(_data.ppdb)); | ||
| 152 | } | ||
| 153 | |||
| 154 | sqlite3_bind_int(ppstmt, 1, verb._id); | ||
| 155 | |||
| 156 | while (sqlite3_step(ppstmt) == SQLITE_ROW) | ||
| 157 | { | ||
| 158 | std::string pronunciation(reinterpret_cast<const char*>(sqlite3_column_text(ppstmt, 0))); | ||
| 159 | auto phonemes = verbly::split<std::list<std::string>>(pronunciation, " "); | ||
| 160 | |||
| 161 | verb.pronunciations.push_back(phonemes); | ||
| 162 | } | ||
| 163 | |||
| 164 | sqlite3_finalize(ppstmt); | ||
| 165 | } | ||
| 166 | |||
| 167 | return output; | ||
| 168 | } | ||
| 169 | |||
| 170 | }; | ||
