table_branch_branchstat.hpp

См. документацию.

#pragma once
 
#include <eosio/eosio.hpp>
 
#include "../consts.hpp"
 
struct [[eosio::table, eosio::contract(BRANCH)]] branchstat {
  eosio::name coopname;
  uint64_t count;
 
  uint64_t primary_key() const { return coopname.value; }
};
 
typedef eosio::multi_index<"branchstat"_n, branchstat> branchstat_index;
 
uint64_t add_branch_count(eosio::name coopname) {
  branchstat_index stat(_branch, _branch.value);
  auto st = stat.find(coopname.value);
 
  uint64_t new_count = 0;
 
  if (st == stat.end()) {
    new_count = 1;
    stat.emplace(coopname, [&](auto &s) {
      s.coopname = coopname;
      s.count = new_count;
    });
  } else {
    new_count = st->count + 1;
    stat.modify(st, coopname, [&](auto &s) { s.count += 1; });
  }
 
  return new_count;
}
 
uint64_t sub_branch_count(eosio::name coopname) {
  branchstat_index stat(_branch, _branch.value);
  auto st = stat.find(coopname.value);
  uint64_t new_count = 0;
 
  eosio::check(st != stat.end(), "Нет кооперативных участков");
  eosio::check(st->count > 0, "Системная ошибка");
 
  new_count = st->count - 1;
 
  stat.modify(st, coopname, [&](auto &s) { s.count -= 1; });
 
  return new_count;
}