89 lines
2.0 KiB
C++
89 lines
2.0 KiB
C++
#include "bs_util.h"
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using namespace std;
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int main()
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{
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Request req;
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Session se(req);
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Response res;
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json j;
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auto jsonfail=[&](int errcode,const std::string& dtl="")
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{
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jsonfail_func(j,errcode,dtl);
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};
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do
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{
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if(!se.isReady())
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{
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jsonfail(err_session);
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break;
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}
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if(se.getUser().empty())
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{
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jsonfail(err_need_login);
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break;
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}
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if(req.requestMethod!="POST")
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{
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jsonfail(err_method_not_supported);
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break;
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}
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postval(startid);
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postval(amount);
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int startid_real=ParseInt(startid);
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if(startid_real<0)
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{
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jsonfail(err_parameter,"Failed to parse startid");
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break;
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}
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int amount_real=ParseInt(amount);
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if(amount_real<0)
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{
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jsonfail(err_parameter,"Failed to parse amount");
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break;
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}
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/// Limit to 50.
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if(amount_real>50) amount_real=50;
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startdb();
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if(conn.exec(make_str("select class_id,name,book_type from bs_book where class_id>=",
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startid_real,
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" order by class_id limit ",
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amount_real),
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[&](MySQLResult& res)
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{
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res.stepRow([&](char** val,unsigned long* len)
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{
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json s;
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s["class_id"]=string(val[0]);
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s["book_name"]=string(val[1]);
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s["book_type"]=string(val[2]);
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j["result"].push_back(s);
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});
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})<0)
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{
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jsonfail(err_sql,"Step 1");
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break;
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}
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j["success"]=1;
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}
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while(0);
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se.writeToResponse(res);
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res.content.append(j.dump());
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return 0;
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}
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