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add: basic relay structure

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add: improved sql calls
This commit is contained in:
Tobias Reisinger 2019-07-20 23:33:17 +02:00
parent a38a6e63b3
commit ac61c26d56
12 changed files with 426 additions and 77 deletions
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18
controllers/api_v1_devices.cc
View file

@ -24,15 +24,13 @@ devices::get_all(const HttpRequestPtr &req, std::function<void(const HttpRespons
void
devices::get_one_by_id(const HttpRequestPtr &req, std::function<void(const HttpResponsePtr &)> &&callback, const std::string& device_id)
{
device_dbo *device = device_dbo::get_one_by("id", device_id.c_str());
device_dbo **devices = device_dbo::get_by_simple("id", device_id.c_str(), (intptr_t) &sqlite3_bind_text);
if(device)
if(devices[0])
{
auto resp = HttpResponse::newHttpJsonResponse(device->to_json());
auto resp = HttpResponse::newHttpJsonResponse(devices[0]->to_json());
callback(resp);
free(device);
}
else
{
@ -41,24 +39,23 @@ devices::get_one_by_id(const HttpRequestPtr &req, std::function<void(const HttpR
callback(resp);
}
device_dbo::free_list(devices);
}
void
devices::delete_one_by_id(const HttpRequestPtr &req, std::function<void(const HttpResponsePtr &)> &&callback, const std::string& device_id)
{
device_dbo *device = device_dbo::get_one_by("id", device_id.c_str());
device_dbo **devices = device_dbo::get_by_simple("id", device_id.c_str(), (intptr_t) &sqlite3_bind_text);
if(device)
if(devices[0])
{
auto resp = HttpResponse::newHttpResponse();
if(!device->remove())
if(!devices[0]->remove())
{
resp->setStatusCode(k500InternalServerError);
}
callback(resp);
free(device);
}
else
{
@ -67,4 +64,5 @@ devices::delete_one_by_id(const HttpRequestPtr &req, std::function<void(const Ht
callback(resp);
}
device_dbo::free_list(devices);
}

12
controllers/api_v1_devices.h
View file

@ -13,16 +13,20 @@ namespace api
METHOD_ADD(devices::get_all, "/", Get);
METHOD_ADD(devices::get_one_by_id, "/{1}", Get);
METHOD_ADD(devices::delete_one_by_id, "/{1}", Delete);
//METHOD_ADD(Devices::get_relays_all,"/{1}/relays",Get);
//METHOD_ADD(Devices::get_relays_one,"/{1}/relays/{2}",Get);
METHOD_ADD(devices::get_relays_all, "/{1}/relays/", Get);
METHOD_ADD(devices::get_relays_one_by_id_and_num, "/{1}/relays/{2}", Get);
METHOD_ADD(devices::put_relays_one_by_id_and_num, "/{1}/relays/{2}", Put, "filters::json_required");
METHOD_LIST_END
static void post_discover(const HttpRequestPtr& req, std::function<void (const HttpResponsePtr &)> &&callback);
static void get_all(const HttpRequestPtr& req, std::function<void (const HttpResponsePtr &)> &&callback);
static void get_one_by_id(const HttpRequestPtr& req, std::function<void (const HttpResponsePtr &)> &&callback, const std::string& device_id);
static void delete_one_by_id(const HttpRequestPtr& req, std::function<void (const HttpResponsePtr &)> &&callback, const std::string& device_id);
//void get_relays_all(const HttpRequestPtr& req,std::function<void (const HttpResponsePtr &)> &&callback,std::string device_id);
//void get_relays_one(const HttpRequestPtr& req,std::function<void (const HttpResponsePtr &)> &&callback,std::string device_id,std::string relay_id);
static void get_relays_all(const HttpRequestPtr& req, std::function<void (const HttpResponsePtr &)> &&callback, const std::string& device_id);
static void get_relays_one_by_id_and_num(const HttpRequestPtr& req, std::function<void (const HttpResponsePtr &)> &&callback, const std::string& device_id, int relay_num);
static void put_relays_one_by_id_and_num(const HttpRequestPtr& req, std::function<void (const HttpResponsePtr &)> &&callback, const std::string& device_id, int relay_num);
};
}
}

57
controllers/api_v1_devices_relays.cc Normal file
View file

@ -0,0 +1,57 @@
#include <netdb.h>
#include <models/relay_dbo.h>
#include "api_v1_devices.h"
using namespace api::v1;
void
devices::get_relays_all(const HttpRequestPtr &req, std::function<void(const HttpResponsePtr &)> &&callback,
const std::string& device_id)
{
relay_dbo **all_device_relays = relay_dbo::get_by_simple("device_id", (void *) device_id.c_str(),
(intptr_t) sqlite3_bind_text);
Json::Value all_relays_json(Json::arrayValue);
for(int i = 0; all_device_relays[i] != nullptr; i++)
{
all_relays_json.append(all_device_relays[i]->to_json());
}
auto resp = HttpResponse::newHttpJsonResponse(all_relays_json);
callback(resp);
relay_dbo::free_list(all_device_relays);
}
void
devices::get_relays_one_by_id_and_num(const HttpRequestPtr &req,
std::function<void(const HttpResponsePtr &)> &&callback, const std::string& device_id,
int relay_num)
{
relay_dbo **relays = relay_dbo::get_by_simple("id", (void *) (intptr_t) relay_num, (intptr_t) &sqlite3_bind_int);
if(relays[0])
{
auto resp = HttpResponse::newHttpJsonResponse(relays[0]->to_json());
callback(resp);
}
else
{
auto resp = HttpResponse::newHttpResponse();
resp->setStatusCode(k404NotFound);
callback(resp);
}
relay_dbo::free_list(relays);
}
void
devices::put_relays_one_by_id_and_num(const HttpRequestPtr &req,
std::function<void(const HttpResponsePtr &)> &&callback, const std::string& device_id,
int relay_num)
{
}

41
controllers/api_v1_schedules.cc
View file

@ -27,15 +27,13 @@ schedules::get_all(const HttpRequestPtr &req, std::function<void(const HttpRespo
void
schedules::get_one_by_id(const HttpRequestPtr &req, std::function<void(const HttpResponsePtr &)> &&callback, const std::string& schedule_id)
{
schedule_dbo *schedule = schedule_dbo::get_one_by("id", schedule_id.c_str());
schedule_dbo **schedules = schedule_dbo::get_by_simple("id", schedule_id.c_str(), (intptr_t) &sqlite3_bind_text);
if(schedule)
if(schedules[0])
{
auto resp = HttpResponse::newHttpJsonResponse(schedule->to_json());
auto resp = HttpResponse::newHttpJsonResponse(schedules[0]->to_json());
callback(resp);
delete schedule;
}
else
{
@ -44,24 +42,23 @@ schedules::get_one_by_id(const HttpRequestPtr &req, std::function<void(const Htt
callback(resp);
}
schedule_dbo::free_list(schedules);
}
void
schedules::delete_one_by_id(const HttpRequestPtr &req, std::function<void(const HttpResponsePtr &)> &&callback, const std::string& schedule_id)
{
schedule_dbo *schedule = schedule_dbo::get_one_by("id", schedule_id.c_str());
schedule_dbo **schedules = schedule_dbo::get_by_simple("id", schedule_id.c_str(), (intptr_t) &sqlite3_bind_text);
if(schedule)
if(schedules[0])
{
auto resp = HttpResponse::newHttpResponse();
if(!schedule->remove())
if(!schedules[0]->remove())
{
resp->setStatusCode(k500InternalServerError);
}
callback(resp);
delete schedule;
}
else
{
@ -70,6 +67,7 @@ schedules::delete_one_by_id(const HttpRequestPtr &req, std::function<void(const
callback(resp);
}
schedule_dbo::free_list(schedules);
}
void
@ -99,20 +97,21 @@ schedules::post_new(const HttpRequestPtr &req, std::function<void(const HttpResp
}
void
schedules::put_one_by_id(const HttpRequestPtr &req, std::function<void(const HttpResponsePtr &)> &&callback, const std::string &schedule_id)
schedules::put_one_by_id(const HttpRequestPtr &req, std::function<void(const HttpResponsePtr &)> &&callback,
const std::string &schedule_id)
{
Json::Value body = *req->jsonObject();
schedule_dbo *schedule = schedule_dbo::get_one_by("id", schedule_id.c_str());
schedule_dbo **schedules = schedule_dbo::get_by_simple("id", schedule_id.c_str(), (intptr_t) &sqlite3_bind_text);
if(schedule)
if(schedules[0])
{
strncpy(schedule->name, body["name"].asCString(), 127);
schedule->name[127] = '\0';
delete schedule->periods;
schedule->periods = helpers::parse_periods(body["periods"]);
strncpy(schedules[0]->name, body["name"].asCString(), 127);
schedules[0]->name[127] = '\0';
delete schedules[0]->periods;
schedules[0]->periods = helpers::parse_periods(body["periods"]);
if(!schedule->update())
if(!schedules[0]->update())
{
auto resp = HttpResponse::newHttpResponse();
resp->setStatusCode(k500InternalServerError);
@ -120,11 +119,9 @@ schedules::put_one_by_id(const HttpRequestPtr &req, std::function<void(const Htt
}
else
{
auto resp = HttpResponse::newHttpJsonResponse(schedule->to_json());
auto resp = HttpResponse::newHttpJsonResponse(schedules[0]->to_json());
callback(resp);
}
delete schedule;
}
else
{
@ -133,5 +130,5 @@ schedules::put_one_by_id(const HttpRequestPtr &req, std::function<void(const Htt
callback(resp);
}
schedule_dbo::free_list(schedules);
}

12
helpers.h
View file

@ -4,6 +4,7 @@
#include <json/value.h>
#include <models/period.h>
#include <models/period_list.h>
#include <sqlite3.h>
namespace helpers
{
@ -18,6 +19,17 @@ namespace helpers
period_list*
parse_periods(Json::Value periods_json);
typedef struct s_sql_filter_builder
{
const char *col_name;
const void *value;
const intptr_t bind_func;
const char *logic;
} sql_filter_builder;
sqlite3_stmt*
create_sql_filtered_query(const char *sql, sql_filter_builder **filters);
}
#endif //EMGAUWA_CORE_HELPERS_H

49
helpers/create_sql_filtered_query.cc Normal file
View file

@ -0,0 +1,49 @@
#include <helpers.h>
#include <drogon/drogon.h>
#include <globals.h>
sqlite3_stmt*
helpers::create_sql_filtered_query(const char *sql, sql_filter_builder **filters)
{
char *old_query = (char*)sql;
char *new_query;
sql_filter_builder *filter;
int filter_count = 0;
do
{
filter = filters[filter_count];
filter_count++;
asprintf(&new_query, " %s %s=?%d %s", old_query, filter->col_name, filter_count, filter->logic);
if(old_query != sql)
{
free(old_query);
}
old_query = new_query;
} while(filter->logic[0] != ';');
sqlite3_stmt *stmt;
sqlite3_prepare_v2(globals::db, new_query, -1, &stmt, nullptr);
free(new_query);
for(int i = 0; i < filter_count; i++)
{
filter = filters[i];
if(filter->bind_func == (intptr_t)&sqlite3_bind_int)
{
sqlite3_bind_int(stmt, i + 1, (int)(intptr_t)filter->value);
}
if(filter->bind_func == (intptr_t)&sqlite3_bind_text)
{
sqlite3_bind_text(stmt, i + 1, (char*)filter->value, -1, SQLITE_STATIC);
}
}
return stmt;
}

24
models/device_dbo.cc
View file

@ -2,6 +2,7 @@
#include <cstring>
#include <cstring>
#include <trantor/utils/Logger.h>
#include <helpers.h>
#include "device_dbo.h"
#include "globals.h"
@ -169,18 +170,21 @@ device_dbo::get_all()
return device_db_select(stmt);
}
device_dbo*
device_dbo::get_one_by(const char *key, const char *value)
device_dbo**
device_dbo::get_by_simple(const char *key, const void *value, intptr_t bind_func)
{
sqlite3_stmt *stmt;
char* sql;
helpers::sql_filter_builder *filters[1];
helpers::sql_filter_builder filter
{
key,
value,
bind_func,
";"
};
filters[0] = &filter;
sqlite3_stmt *stmt = helpers::create_sql_filtered_query("SELECT * FROM devices WHERE", filters);
asprintf(&sql, "SELECT * FROM devices WHERE %s=?1;", key);
sqlite3_prepare_v2(globals::db, sql, -1, &stmt, nullptr);
sqlite3_bind_text(stmt, 1, value, -1, SQLITE_STATIC);
return device_db_select(stmt)[0];
return device_db_select(stmt);
}
void

4
models/device_dbo.h
View file

@ -31,8 +31,8 @@ public:
static void
free_list(device_dbo **devices_list);
static device_dbo*
get_one_by(const char *key, const char *value);
static device_dbo**
get_by_simple(const char *key, const void *value, intptr_t bind_func);
static device_dbo**
get_all();

190
models/relay_dbo.cc Normal file
View file

@ -0,0 +1,190 @@
#include <cstdio>
#include <cstring>
#include <cstring>
#include <trantor/utils/Logger.h>
#include <helpers.h>
#include "relay_dbo.h"
#include "globals.h"
static bool relay_db_update_insert(relay_dbo *relay, sqlite3_stmt *stmt)
{
int rc;
sqlite3_bind_int(stmt, 1, relay->id);
sqlite3_bind_int(stmt, 2, relay->number);
sqlite3_bind_text(stmt, 3, relay->name, -1, SQLITE_STATIC);
sqlite3_bind_text(stmt, 4, relay->active_schedule_id, -1, SQLITE_STATIC);
sqlite3_bind_text(stmt, 5, relay->device_id, -1, SQLITE_STATIC);
rc = sqlite3_step(stmt);
if (rc != SQLITE_DONE)
{
printf("ERROR inserting data: %s\n", sqlite3_errmsg(globals::db));
return false;
}
sqlite3_finalize(stmt);
return true;
}
static relay_dbo*
relay_db_select_mapper(sqlite3_stmt *stmt)
{
auto *new_relay = (relay_dbo*)malloc(sizeof(relay_dbo));
for(int i = 0; i < sqlite3_column_count(stmt); i++)
{
const char *name = sqlite3_column_name(stmt, i);
switch(name[0])
{
case 'a': // active_schedule_id
strncpy(new_relay->active_schedule_id, (const char*)sqlite3_column_text(stmt, i), 33);
break;
case 'd': // device_id
strncpy(new_relay->device_id, (const char*)sqlite3_column_text(stmt, i), 33);
break;
case 'i':
new_relay->id = sqlite3_column_int(stmt, i);
break;
case 'n':
switch(name[0])
{
case 'a': // name
strncpy(new_relay->name, (const char*)sqlite3_column_text(stmt, i), 127);
break;
case 'u': // number
new_relay->number = sqlite3_column_int(stmt, i);
break;
default:
break;
}
default: // ignore columns not implemented
break;
}
}
return new_relay;
}
static relay_dbo**
relay_db_select(sqlite3_stmt *stmt)
{
auto **all_relays = (relay_dbo**)malloc(sizeof(relay_dbo*));
int row = 0;
while(true)
{
int s;
s = sqlite3_step(stmt);
if (s == SQLITE_ROW)
{
relay_dbo *new_relay = relay_db_select_mapper(stmt);
row++;
all_relays = (relay_dbo**)realloc(all_relays, sizeof(relay_dbo*) * (row + 1));
all_relays[row - 1] = new_relay;
}
else
{
if (s == SQLITE_DONE)
{
break;
}
else
{
LOG_ERROR << "Error Selecting relays from database";
sqlite3_finalize(stmt);
return nullptr;
}
}
}
sqlite3_finalize(stmt);
all_relays[row] = nullptr;
return all_relays;
}
bool
relay_dbo::update()
{
sqlite3_stmt *stmt;
sqlite3_prepare_v2(globals::db, "UPDATE relays set number = ?2, name = ?3, active_schedule_id = ?4, device_id = ?5 WHERE id = ?1;", -1, &stmt, nullptr);
return relay_db_update_insert(this, stmt);
}
bool
relay_dbo::insert()
{
sqlite3_stmt *stmt;
sqlite3_prepare_v2(globals::db, "INSERT INTO relays(id, number, name, active_schedule_id, device_id) values (?1, ?2, ?3, ?4, ?5);", -1, &stmt, nullptr);
return relay_db_update_insert(this, stmt);
}
bool
relay_dbo::remove()
{
sqlite3_stmt *stmt;
int rc;
sqlite3_prepare_v2(globals::db, "DELETE FROM relays WHERE id=?1;", -1, &stmt, nullptr);
sqlite3_bind_int(stmt, 1, this->id);
rc = sqlite3_step(stmt);
sqlite3_finalize(stmt);
return rc == SQLITE_DONE;
}
Json::Value
relay_dbo::to_json()
{
Json::Value relay_json;
relay_json["name"] = this->name;
relay_json["id"] = this->id;
return relay_json;
}
relay_dbo**
relay_dbo::get_all()
{
sqlite3_stmt *stmt;
sqlite3_prepare_v2(globals::db, "SELECT * FROM relays;", -1, &stmt, nullptr);
return relay_db_select(stmt);
}
relay_dbo**
relay_dbo::get_by_simple(const char *key, const void *value, intptr_t bind_func)
{
helpers::sql_filter_builder *filters[1];
helpers::sql_filter_builder filter
{
key,
value,
bind_func,
";"
};
filters[0] = &filter;
sqlite3_stmt *stmt = helpers::create_sql_filtered_query("SELECT * FROM relays WHERE", filters);
return relay_db_select(stmt);
}
void
relay_dbo::free_list(relay_dbo **relays_list)
{
for(int i = 0; relays_list[i] != nullptr; i++)
{
free(relays_list[i]);
}
free(relays_list);
}

41
models/relay_dbo.h Normal file
View file

@ -0,0 +1,41 @@
#ifndef EMGAUWA_CORE_RELAY_DBO_H
#define EMGAUWA_CORE_RELAY_DBO_H
#include <string>
#include <sqlite3.h>
#include <json/value.h>
class relay_dbo
{
public:
int id;
char name[128];
int number;
char device_id[33];
char active_schedule_id[33];
bool
update();
bool
insert();
bool
remove();
Json::Value
to_json();
static void
free_list(relay_dbo **relays_list);
static relay_dbo**
get_by_simple(const char *key, const void *value, intptr_t bind_func);
static relay_dbo**
get_all();
};
#endif //EMGAUWA_CORE_RELAY_DBO_H

35
models/schedule_dbo.cc
View file

@ -6,6 +6,7 @@
#include <cstring>
#include <cstring>
#include <trantor/utils/Logger.h>
#include <helpers.h>
#include "schedule_dbo.h"
#include "globals.h"
#include "period.h"
@ -89,9 +90,8 @@ schedule_db_select(sqlite3_stmt *stmt)
}
else
{
LOG_ERROR << "Error Selecting schedules from database";
sqlite3_finalize(stmt);
return nullptr;
LOG_ERROR << "Error Selecting schedules from database: " << sqlite3_errstr(s);
break;
}
}
}
@ -165,24 +165,21 @@ schedule_dbo::get_all()
return schedule_db_select(stmt);
}
schedule_dbo*
schedule_dbo::get_one_by(const char *key, const char *value)
schedule_dbo**
schedule_dbo::get_by_simple(const char *key, const void *value, intptr_t bind_func)
{
sqlite3_stmt *stmt;
char* sql;
helpers::sql_filter_builder *filters[1];
helpers::sql_filter_builder filter
{
key,
value,
bind_func,
";"
};
filters[0] = &filter;
sqlite3_stmt *stmt = helpers::create_sql_filtered_query("SELECT * FROM schedules WHERE", filters);
asprintf(&sql, "SELECT * FROM schedules WHERE %s=?1;", key);
sqlite3_prepare_v2(globals::db, sql, -1, &stmt, nullptr);
sqlite3_bind_text(stmt, 1, value, -1, SQLITE_STATIC);
schedule_dbo **schedule_list = schedule_db_select(stmt);
schedule_dbo *target_schedule = schedule_list[0];
free(schedule_list);
free(sql);
return target_schedule;
return schedule_db_select(stmt);
}
void

4
models/schedule_dbo.h
View file

@ -32,8 +32,8 @@ public:
static void
free_list(schedule_dbo **schedules_list);
static schedule_dbo*
get_one_by(const char *key, const char *value);
static schedule_dbo**
get_by_simple(const char *key, const void *value, intptr_t bind_func);
static schedule_dbo**
get_all();