76 lines
1.7 KiB
C
76 lines
1.7 KiB
C
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#ifndef THREADPOOLDEMO_CCSQLITE3_H
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#define THREADPOOLDEMO_CCSQLITE3_H
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#pragma once
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#include "sqlite3.h"
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#include "CCString.h"
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#include "vector"
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#include "mutex"
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#include "CCJSONObject.h"
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/*
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* CREATE TABLE database_name.table_name(
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column1 datatype PRIMARY KEY(one or more columns),
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column2 datatype,
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column3 datatype,
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.....
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columnN datatype,);
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* DROP TABLE database_name.table_name;
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* INSERT INTO TABLE_NAME VALUES (value1,value2,value3,...valueN);
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* SELECT * FROM table_name;
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* SELECT * FROM table_name WHERE xx='xx';
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* UPDATE xxx SET ADDRESS = 'Texas' WHERE xxx = xxx;
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* DELETE FROM table_name WHERE xxx=xxx;
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*
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* */
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struct CCResultSet
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{
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std::vector<JSON> Data;
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int Row = 0;
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int Col = 0;
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bool Flag = false;
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};
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class CCSQLite3
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{
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public:
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CCSQLite3(CCString Path);
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bool Open(CCString Path);
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bool Close();
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bool SqlUpdate(CCString sql);
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CCResultSet SqlQuery(CCString sql);
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CCString GetError();
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private:
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sqlite3* SQL;
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bool SQlite(const char* sql, int(*callback)(void*, int, char**, char**) = NULL, void* a = NULL);
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char *zErrMsg = nullptr;
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std::mutex mutex;
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// 检查字符串中是否包含小数点
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bool containsDecimal(const std::string &str) {
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for (char ch : str) {
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if (ch == '.') {
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return true;
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}
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}
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return false;
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}
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// 根据字符串内容转换为 int 或 double
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template<typename T>
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T convert(const std::string &str) {
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std::istringstream iss(str);
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T value;
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iss >> value;
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if (iss.fail()) {
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throw std::invalid_argument("Conversion failed.");
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}
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return value;
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}
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};
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#endif
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