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1 /*
2  * Copyright (c) 2023 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 #define LOG_TAG "RelationalPredicate"
16 #include "relational_predicates.h"
17 
18 #include <variant>
19 
20 #include "convertor_error_code.h"
21 #include "logger.h"
22 #include "oh_data_define.h"
23 #include "oh_predicates.h"
24 #include "relational_predicates_objects.h"
25 #include "relational_store_error_code.h"
26 #include "sqlite_global_config.h"
27 
28 using namespace OHOS::NativeRdb;
29 namespace OHOS {
30 namespace RdbNdk {
EqualTo(OH_Predicates * predicates,const char * field,OH_VObject * valueObject)31 OH_Predicates *RelationalPredicate::EqualTo(OH_Predicates *predicates, const char *field, OH_VObject *valueObject)
32 {
33     auto self = GetSelf(predicates);
34     auto selfObjects = RelationalPredicatesObjects::GetSelf(valueObject);
35     if (self == nullptr || selfObjects == nullptr || field == nullptr) {
36         return self;
37     }
38     std::vector<ValueObject> values = selfObjects->Get();
39     if (!values.empty()) {
40         self->predicates_.EqualTo(field, values[0]);
41     }
42     return self;
43 }
44 
NotEqualTo(OH_Predicates * predicates,const char * field,OH_VObject * valueObject)45 OH_Predicates *RelationalPredicate::NotEqualTo(OH_Predicates *predicates, const char *field, OH_VObject *valueObject)
46 {
47     auto self = GetSelf(predicates);
48     auto selfObjects = RelationalPredicatesObjects::GetSelf(valueObject);
49     if (self == nullptr || selfObjects == nullptr || field == nullptr) {
50         return self;
51     }
52     std::vector<ValueObject> values = selfObjects->Get();
53     if (!values.empty()) {
54         self->predicates_.NotEqualTo(field, values[0]);
55     }
56     return self;
57 }
58 
BeginWrap(OH_Predicates * predicates)59 OH_Predicates *RelationalPredicate::BeginWrap(OH_Predicates *predicates)
60 {
61     auto self = GetSelf(predicates);
62     if (self == nullptr) {
63         return self;
64     }
65     self->predicates_.BeginWrap();
66     return self;
67 }
68 
EndWrap(OH_Predicates * predicates)69 OH_Predicates *RelationalPredicate::EndWrap(OH_Predicates *predicates)
70 {
71     auto self = GetSelf(predicates);
72     if (self == nullptr) {
73         return self;
74     }
75     self->predicates_.EndWrap();
76     return self;
77 }
78 
Or(OH_Predicates * predicates)79 OH_Predicates *RelationalPredicate::Or(OH_Predicates *predicates)
80 {
81     auto self = GetSelf(predicates);
82     if (self == nullptr) {
83         return self;
84     }
85     self->predicates_.Or();
86     return self;
87 }
88 
And(OH_Predicates * predicates)89 OH_Predicates *RelationalPredicate::And(OH_Predicates *predicates)
90 {
91     auto self = GetSelf(predicates);
92     if (self == nullptr) {
93         return self;
94     }
95     self->predicates_.And();
96     return self;
97 }
98 
IsNull(OH_Predicates * predicates,const char * field)99 OH_Predicates *RelationalPredicate::IsNull(OH_Predicates *predicates, const char *field)
100 {
101     auto self = GetSelf(predicates);
102     if (self == nullptr || field == nullptr) {
103         return self;
104     }
105     self->predicates_.IsNull(field);
106     return self;
107 }
108 
IsNotNull(OH_Predicates * predicates,const char * field)109 OH_Predicates *RelationalPredicate::IsNotNull(OH_Predicates *predicates, const char *field)
110 {
111     auto self = GetSelf(predicates);
112     if (self == nullptr || field == nullptr) {
113         return self;
114     }
115     self->predicates_.IsNotNull(field);
116     return self;
117 }
118 
Like(OH_Predicates * predicates,const char * field,OH_VObject * valueObject)119 OH_Predicates *RelationalPredicate::Like(OH_Predicates *predicates, const char *field, OH_VObject *valueObject)
120 {
121     auto self = GetSelf(predicates);
122     auto selfObjects = RelationalPredicatesObjects::GetSelf(valueObject);
123     if (self == nullptr || selfObjects == nullptr || field == nullptr) {
124         return self;
125     }
126     std::vector<ValueObject> values = selfObjects->Get();
127     if (!values.empty()) {
128         if (auto pval = std::get_if<std::string>(&values[0].value)) {
129             self->predicates_.Like(field, std::move(*pval));
130         }
131     }
132     return self;
133 }
134 
Between(OH_Predicates * predicates,const char * field,OH_VObject * valueObject)135 OH_Predicates *RelationalPredicate::Between(OH_Predicates *predicates, const char *field, OH_VObject *valueObject)
136 {
137     auto self = GetSelf(predicates);
138     auto selfObjects = RelationalPredicatesObjects::GetSelf(valueObject);
139     if (self == nullptr || selfObjects == nullptr || field == nullptr) {
140         return self;
141     }
142     std::vector<ValueObject> values = selfObjects->Get();
143     // The number of arguments required for the between method is 2
144     if (values.size() != 2) {
145         LOG_ERROR("size is %{public}zu", values.size());
146         return self;
147     }
148 
149     self->predicates_.Between(field, values[0], values[1]);
150     return self;
151 }
152 
NotBetween(OH_Predicates * predicates,const char * field,OH_VObject * valueObject)153 OH_Predicates *RelationalPredicate::NotBetween(OH_Predicates *predicates, const char *field, OH_VObject *valueObject)
154 {
155     auto self = GetSelf(predicates);
156     auto selfObjects = RelationalPredicatesObjects::GetSelf(valueObject);
157     if (self == nullptr || selfObjects == nullptr || field == nullptr) {
158         return self;
159     }
160     std::vector<ValueObject> values = selfObjects->Get();
161     // The number of arguments required for the between method is 2
162     if (values.size() != 2) {
163         LOG_ERROR("size is %{public}zu", values.size());
164         return self;
165     }
166     self->predicates_.NotBetween(field, values[0], values[1]);
167     return self;
168 }
169 
GreaterThan(OH_Predicates * predicates,const char * field,OH_VObject * valueObject)170 OH_Predicates *RelationalPredicate::GreaterThan(OH_Predicates *predicates, const char *field, OH_VObject *valueObject)
171 {
172     auto self = GetSelf(predicates);
173     auto selfObjects = RelationalPredicatesObjects::GetSelf(valueObject);
174     if (self == nullptr || selfObjects == nullptr || field == nullptr) {
175         return self;
176     }
177     std::vector<ValueObject> values = selfObjects->Get();
178     if (!values.empty()) {
179         self->predicates_.GreaterThan(field, values[0]);
180     }
181     return self;
182 }
183 
LessThan(OH_Predicates * predicates,const char * field,OH_VObject * valueObject)184 OH_Predicates *RelationalPredicate::LessThan(OH_Predicates *predicates, const char *field, OH_VObject *valueObject)
185 {
186     auto self = GetSelf(predicates);
187     auto selfObjects = RelationalPredicatesObjects::GetSelf(valueObject);
188     if (self == nullptr || selfObjects == nullptr || field == nullptr) {
189         return self;
190     }
191     std::vector<ValueObject> values = selfObjects->Get();
192     if (!values.empty()) {
193         self->predicates_.LessThan(field, values[0]);
194     }
195     return self;
196 }
197 
GreaterThanOrEqualTo(OH_Predicates * predicates,const char * field,OH_VObject * valueObject)198 OH_Predicates *RelationalPredicate::GreaterThanOrEqualTo(
199     OH_Predicates *predicates, const char *field, OH_VObject *valueObject)
200 {
201     auto self = GetSelf(predicates);
202     auto selfObjects = RelationalPredicatesObjects::GetSelf(valueObject);
203     if (self == nullptr || selfObjects == nullptr || field == nullptr) {
204         return self;
205     }
206     std::vector<ValueObject> values = selfObjects->Get();
207     if (!values.empty()) {
208         self->predicates_.GreaterThanOrEqualTo(field, values[0]);
209     }
210     return self;
211 }
LessThanOrEqualTo(OH_Predicates * predicates,const char * field,OH_VObject * valueObject)212 OH_Predicates *RelationalPredicate::LessThanOrEqualTo(
213     OH_Predicates *predicates, const char *field, OH_VObject *valueObject)
214 {
215     auto self = GetSelf(predicates);
216     auto selfObjects = RelationalPredicatesObjects::GetSelf(valueObject);
217     if (self == nullptr || selfObjects == nullptr || field == nullptr) {
218         return self;
219     }
220     std::vector<ValueObject> values = selfObjects->Get();
221     if (!values.empty()) {
222         self->predicates_.LessThanOrEqualTo(field, values[0]);
223     }
224     return self;
225 }
226 
OrderBy(OH_Predicates * predicates,const char * field,OH_OrderType type)227 OH_Predicates *RelationalPredicate::OrderBy(OH_Predicates *predicates, const char *field, OH_OrderType type)
228 {
229     auto self = GetSelf(predicates);
230     if (self == nullptr || field == nullptr) {
231         return self;
232     }
233     if (type == OH_OrderType::DESC) {
234         self->predicates_.OrderByDesc(field);
235         return self;
236     }
237     self->predicates_.OrderByAsc(field);
238     return self;
239 }
240 
Distinct(OH_Predicates * predicates)241 OH_Predicates *RelationalPredicate::Distinct(OH_Predicates *predicates)
242 {
243     auto self = GetSelf(predicates);
244     if (self == nullptr) {
245         return self;
246     }
247     self->predicates_.Distinct();
248     return self;
249 }
250 
Limit(OH_Predicates * predicates,unsigned int value)251 OH_Predicates *RelationalPredicate::Limit(OH_Predicates *predicates, unsigned int value)
252 {
253     auto self = GetSelf(predicates);
254     if (self == nullptr) {
255         return self;
256     }
257     self->predicates_.Limit(value);
258     return self;
259 }
260 
Offset(OH_Predicates * predicates,unsigned int rowOffset)261 OH_Predicates *RelationalPredicate::Offset(OH_Predicates *predicates, unsigned int rowOffset)
262 {
263     auto self = GetSelf(predicates);
264     if (self == nullptr) {
265         return self;
266     }
267     self->predicates_.Offset(rowOffset);
268     return self;
269 }
270 
GroupBy(OH_Predicates * predicates,char const * const * fields,int length)271 OH_Predicates *RelationalPredicate::GroupBy(OH_Predicates *predicates, char const *const *fields, int length)
272 {
273     auto self = GetSelf(predicates);
274     if (self == nullptr || fields == nullptr || length <= 0) {
275         return self;
276     }
277     std::vector<std::string> vec;
278     vec.reserve(length);
279     for (int i = 0; i < length; i++) {
280         vec.push_back(std::string(fields[i]));
281     }
282     self->predicates_.GroupBy(vec);
283     return self;
284 }
285 
In(OH_Predicates * predicates,const char * field,OH_VObject * valueObject)286 OH_Predicates *RelationalPredicate::In(OH_Predicates *predicates, const char *field, OH_VObject *valueObject)
287 {
288     auto self = GetSelf(predicates);
289     auto selfObjects = RelationalPredicatesObjects::GetSelf(valueObject);
290     if (self == nullptr || selfObjects == nullptr || field == nullptr) {
291         return self;
292     }
293     std::vector<ValueObject> values = selfObjects->Get();
294     if (values.size() > OHOS::NativeRdb::GlobalExpr::SQLITE_MAX_COLUMN) {
295         return self;
296     }
297 
298     self->predicates_.In(field, values);
299     return self;
300 }
301 
NotIn(OH_Predicates * predicates,const char * field,OH_VObject * valueObject)302 OH_Predicates *RelationalPredicate::NotIn(OH_Predicates *predicates, const char *field, OH_VObject *valueObject)
303 {
304     auto self = GetSelf(predicates);
305     auto selfObjects = RelationalPredicatesObjects::GetSelf(valueObject);
306     if (self == nullptr || selfObjects == nullptr || field == nullptr) {
307         return self;
308     }
309     std::vector<ValueObject> values = selfObjects->Get();
310     if (values.size() > OHOS::NativeRdb::GlobalExpr::SQLITE_MAX_COLUMN) {
311         return self;
312     }
313 
314     self->predicates_.NotIn(field, values);
315     return self;
316 }
317 
Clear(OH_Predicates * predicates)318 OH_Predicates *RelationalPredicate::Clear(OH_Predicates *predicates)
319 {
320     auto self = GetSelf(predicates);
321     if (self == nullptr) {
322         return self;
323     }
324     self->predicates_.Clear();
325     return self;
326 }
327 
Destroy(OH_Predicates * predicates)328 int RelationalPredicate::Destroy(OH_Predicates *predicates)
329 {
330     auto self = GetSelf(predicates);
331     if (self == nullptr) {
332         return OH_Rdb_ErrCode::RDB_E_INVALID_ARGS;
333     }
334     delete self;
335     return OH_Rdb_ErrCode::RDB_OK;
336 }
337 
RelationalPredicate(const char * table)338 RelationalPredicate::RelationalPredicate(const char *table) : predicates_(table)
339 {
340     id = RDB_PREDICATES_CID;
341     equalTo = EqualTo;
342     notEqualTo = NotEqualTo;
343     beginWrap = BeginWrap;
344     endWrap = EndWrap;
345     orOperate = Or;
346     andOperate = And;
347     isNull = IsNull;
348     isNotNull = IsNotNull;
349     like = Like;
350     between = Between;
351     notBetween = NotBetween;
352     greaterThan = GreaterThan;
353     lessThan = LessThan;
354     greaterThanOrEqualTo = GreaterThanOrEqualTo;
355     lessThanOrEqualTo = LessThanOrEqualTo;
356     orderBy = OrderBy;
357     distinct = Distinct;
358     limit = Limit;
359     offset = Offset;
360     groupBy = GroupBy;
361     in = In;
362     notIn = NotIn;
363     clear = Clear;
364     destroy = Destroy;
365 }
366 
Get()367 OHOS::NativeRdb::RdbPredicates &RelationalPredicate::Get()
368 {
369     return predicates_;
370 }
371 
GetSelf(OH_Predicates * predicates)372 RelationalPredicate *RelationalPredicate::GetSelf(OH_Predicates *predicates)
373 {
374     if (predicates == nullptr || predicates->id != OHOS::RdbNdk::RDB_PREDICATES_CID) {
375         LOG_ERROR("cursor invalid. is null %{public}d", (predicates == nullptr));
376         return nullptr;
377     }
378     return static_cast<OHOS::RdbNdk::RelationalPredicate *>(predicates);
379 }
380 } // namespace RdbNdk
381 } // namespace OHOS
382 
383 using namespace OHOS::RdbNdk;
384 using namespace OHOS::NativeRdb;
OH_Predicates_Having(OH_Predicates * predicates,const char * conditions,const OH_Data_Values * values)385 int OH_Predicates_Having(OH_Predicates *predicates, const char *conditions, const OH_Data_Values *values)
386 {
387     auto self = RelationalPredicate::GetSelf(predicates);
388     if (self == nullptr || conditions == nullptr || (values != nullptr && !values->IsValid())) {
389         return OH_Rdb_ErrCode::RDB_E_INVALID_ARGS;
390     }
391     if (self->Get().GetGroup().empty() || strlen(conditions) == 0) {
392         return OH_Rdb_ErrCode::RDB_E_INVALID_ARGS;
393     }
394     if (values == nullptr) {
395         self->Get().Having(conditions);
396         return OH_Rdb_ErrCode::RDB_OK;
397     }
398     std::vector<ValueObject> datas;
399     for (auto &value : values->values_) {
400         if (!value.IsValid()) {
401             return OH_Rdb_ErrCode::RDB_E_INVALID_ARGS;
402         }
403         datas.push_back(value.value_);
404     }
405     self->Get().Having(conditions, datas);
406     return OH_Rdb_ErrCode::RDB_OK;
407 }
408 
OH_Predicates_NotLike(OH_Predicates * predicates,const char * field,const char * pattern)409 int OH_Predicates_NotLike(OH_Predicates *predicates, const char *field, const char *pattern)
410 {
411     auto self = RelationalPredicate::GetSelf(predicates);
412     if (self == nullptr || field == nullptr || pattern == nullptr) {
413         return OH_Rdb_ErrCode::RDB_E_INVALID_ARGS;
414     }
415     self->Get().NotLike(field, pattern);
416     return OH_Rdb_ErrCode::RDB_OK;
417 }
418 
OH_Predicates_Glob(OH_Predicates * predicates,const char * field,const char * pattern)419 int OH_Predicates_Glob(OH_Predicates *predicates, const char *field, const char *pattern)
420 {
421     auto self = RelationalPredicate::GetSelf(predicates);
422     if (self == nullptr || field == nullptr || pattern == nullptr) {
423         return OH_Rdb_ErrCode::RDB_E_INVALID_ARGS;
424     }
425     self->Get().Glob(field, pattern);
426     return OH_Rdb_ErrCode::RDB_OK;
427 }
428 
OH_Predicates_NotGlob(OH_Predicates * predicates,const char * field,const char * pattern)429 int OH_Predicates_NotGlob(OH_Predicates *predicates, const char *field, const char *pattern)
430 {
431     auto self = RelationalPredicate::GetSelf(predicates);
432     if (self == nullptr || field == nullptr || pattern == nullptr) {
433         return OH_Rdb_ErrCode::RDB_E_INVALID_ARGS;
434     }
435     self->Get().NotGlob(field, pattern);
436     return OH_Rdb_ErrCode::RDB_OK;
437 }
438