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swad-core/swad_follow.c

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// swad_follow.c: user's followers and followed
/*
SWAD (Shared Workspace At a Distance),
is a web platform developed at the University of Granada (Spain),
and used to support university teaching.
This file is part of SWAD core.
Copyright (C) 1999-2021 Antonio Cañas Vargas
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General 3 License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*****************************************************************************/
/*********************************** Headers *********************************/
/*****************************************************************************/
#include <stdbool.h> // For boolean type
#include <string.h> // For string functions
#include "swad_box.h"
#include "swad_database.h"
#include "swad_error.h"
#include "swad_figure.h"
#include "swad_follow.h"
#include "swad_follow_database.h"
#include "swad_form.h"
#include "swad_global.h"
#include "swad_HTML.h"
#include "swad_notification.h"
#include "swad_notification_database.h"
#include "swad_photo.h"
#include "swad_privacy.h"
#include "swad_profile.h"
#include "swad_user.h"
/*****************************************************************************/
/****************************** Public constants *****************************/
/*****************************************************************************/
/*****************************************************************************/
/***************************** Private constants *****************************/
/*****************************************************************************/
#define Fol_NUM_COLUMNS_FOLLOW 3
#define Fol_FOLLOW_SECTION_ID "follow_section"
/*****************************************************************************/
/******************************* Private types *******************************/
/*****************************************************************************/
/*****************************************************************************/
/************** External global variables from others modules ****************/
/*****************************************************************************/
extern struct Globals Gbl;
/*****************************************************************************/
/************************* Private global variables **************************/
/*****************************************************************************/
/*****************************************************************************/
/***************************** Private prototypes ****************************/
/*****************************************************************************/
static void Fol_PutIconsWhoToFollow (__attribute__((unused)) void *Args);
static void Fol_PutIconToUpdateWhoToFollow (void);
static void Fol_ShowNumberOfFollowingOrFollowers (const struct UsrData *UsrDat,
unsigned NumUsrs,
Act_Action_t Action,
const char *Title);
static void Fol_ListFollowingUsr (struct UsrData *UsrDat);
static void Fol_ListFollowersUsr (struct UsrData *UsrDat);
static void Fol_ShowFollowedOrFollower (struct UsrData *UsrDat);
static void Fol_WriteRowUsrToFollowOnRightColumn (struct UsrData *UsrDat);
static void Fol_PutInactiveIconToFollowUnfollow (void);
static void Fol_PutIconToFollow (struct UsrData *UsrDat);
static void Fol_PutIconToUnfollow (struct UsrData *UsrDat);
static void Fol_RequestFollowUsrs (Act_Action_t NextAction);
static void Fol_RequestUnfollowUsrs (Act_Action_t NextAction);
static void Fol_PutHiddenParSelectedUsrsCods (void *SelectedUsrs);
static void Fol_GetFollowedFromSelectedUsrs (unsigned *NumFollowed,
unsigned *NumNotFollowed);
static void Fol_FollowUsr (struct UsrData *UsrDat);
static void Fol_UnfollowUsr (struct UsrData *UsrDat);
/*****************************************************************************/
/********************** Put link to show users to follow **********************/
/*****************************************************************************/
void Fol_PutLinkWhoToFollow (void)
{
extern const char *Txt_Who_to_follow;
Lay_PutContextualLinkIconText (ActSeeSocPrf,NULL,
NULL,NULL,
"user-plus.svg",
Txt_Who_to_follow);
}
/*****************************************************************************/
/****************** Show several users to follow on main zone ****************/
/*****************************************************************************/
#define Fol_MAX_USRS_TO_FOLLOW_MAIN_ZONE (Fol_NUM_COLUMNS_FOLLOW * 3)
void Fol_SuggestUsrsToFollowMainZone (void)
{
extern const char *Hlp_START_Profiles_who_to_follow;
extern const char *Txt_Who_to_follow;
extern const char *Txt_No_user_to_whom_you_can_follow_Try_again_later;
MYSQL_RES *mysql_res;
MYSQL_ROW row;
unsigned NumUsrs;
unsigned NumUsr;
struct UsrData UsrDat;
/***** Contextual menu *****/
Mnu_ContextMenuBegin ();
Prf_PutLinkMyPublicProfile (); // My public profile
Prf_PutLinkRequestAnotherUserProfile (); // Request another user's profile
Mnu_ContextMenuEnd ();
/***** Get users *****/
if ((NumUsrs = Fol_DB_GetUsrsToFollow (Fol_MAX_USRS_TO_FOLLOW_MAIN_ZONE,
Fol_SUGGEST_ANY_USER,
&mysql_res)))
{
/***** Begin box and table *****/
Box_BoxTableBegin ("560px",Txt_Who_to_follow,
Fol_PutIconsWhoToFollow,NULL,
Hlp_START_Profiles_who_to_follow,Box_NOT_CLOSABLE,2);
/***** Initialize structure with user's data *****/
Usr_UsrDataConstructor (&UsrDat);
/***** List users *****/
for (NumUsr = 0;
NumUsr < NumUsrs;
NumUsr++)
{
/***** Get user *****/
row = mysql_fetch_row (mysql_res);
/* Get user's code (row[0]) */
UsrDat.UsrCod = Str_ConvertStrCodToLongCod (row[0]);
/***** Show user *****/
if ((NumUsr % Fol_NUM_COLUMNS_FOLLOW) == 0)
HTM_TR_Begin (NULL);
if (Usr_ChkUsrCodAndGetAllUsrDataFromUsrCod (&UsrDat,
Usr_DONT_GET_PREFS,
Usr_DONT_GET_ROLE_IN_CURRENT_CRS))
Fol_ShowFollowedOrFollower (&UsrDat);
if ((NumUsr % Fol_NUM_COLUMNS_FOLLOW) == (Fol_NUM_COLUMNS_FOLLOW-1) ||
NumUsr == NumUsrs - 1)
HTM_TR_End ();
}
/***** Free memory used for user's data *****/
Usr_UsrDataDestructor (&UsrDat);
/***** End table and box *****/
Box_BoxTableEnd ();
}
else
Ale_ShowAlert (Ale_INFO,Txt_No_user_to_whom_you_can_follow_Try_again_later);
/***** Free structure that stores the query result *****/
DB_FreeMySQLResult (&mysql_res);
}
/*****************************************************************************/
/**************** Show several users to follow on right column ***************/
/*****************************************************************************/
#define Fol_MAX_USRS_TO_FOLLOW_RIGHT_COLUMN 3
void Fol_SuggestUsrsToFollowMainZoneOnRightColumn (void)
{
extern const char *Txt_Who_to_follow;
extern const char *Txt_No_user_to_whom_you_can_follow_Try_again_later;
MYSQL_RES *mysql_res;
MYSQL_ROW row;
unsigned NumUsrs;
unsigned NumUsr;
struct UsrData UsrDat;
/***** Get users *****/
if ((NumUsrs = Fol_DB_GetUsrsToFollow (Fol_MAX_USRS_TO_FOLLOW_RIGHT_COLUMN,
Fol_SUGGEST_ONLY_USERS_WITH_PHOTO,
&mysql_res)))
{
/***** Begin container *****/
HTM_DIV_Begin ("class=\"CONNECTED\"");
/***** Title with link to suggest more users to follow *****/
Frm_BeginForm (ActSeeSocPrf);
HTM_BUTTON_SUBMIT_Begin (Txt_Who_to_follow,"BT_LINK CONNECTED_TXT",NULL);
HTM_Txt (Txt_Who_to_follow);
HTM_BUTTON_End ();
Frm_EndForm ();
/***** Begin table *****/
HTM_TABLE_Begin (NULL);
/***** Initialize structure with user's data *****/
Usr_UsrDataConstructor (&UsrDat);
/***** List users *****/
for (NumUsr = 0;
NumUsr < NumUsrs;
NumUsr++)
{
/***** Get user *****/
row = mysql_fetch_row (mysql_res);
/* Get user's code (row[0]) */
UsrDat.UsrCod = Str_ConvertStrCodToLongCod (row[0]);
/***** Show user *****/
if (Usr_ChkUsrCodAndGetAllUsrDataFromUsrCod (&UsrDat,
Usr_DONT_GET_PREFS,
Usr_DONT_GET_ROLE_IN_CURRENT_CRS))
Fol_WriteRowUsrToFollowOnRightColumn (&UsrDat);
}
/***** Free memory used for user's data *****/
Usr_UsrDataDestructor (&UsrDat);
/***** End table *****/
HTM_TABLE_End ();
/***** End container *****/
HTM_DIV_End ();
}
/***** Free structure that stores the query result *****/
DB_FreeMySQLResult (&mysql_res);
}
/*****************************************************************************/
/****************** Put contextual icons in "who to follow" ******************/
/*****************************************************************************/
static void Fol_PutIconsWhoToFollow (__attribute__((unused)) void *Args)
{
/***** Put icon to update who to follow *****/
Fol_PutIconToUpdateWhoToFollow ();
/***** Put icon to show a figure *****/
Fig_PutIconToShowFigure (Fig_FOLLOW);
}
/*****************************************************************************/
/********************* Put icon to update who to follow **********************/
/*****************************************************************************/
static void Fol_PutIconToUpdateWhoToFollow (void)
{
extern const char *Txt_Update;
Frm_BeginForm (ActSeeSocPrf);
HTM_BUTTON_Animated_Begin (Txt_Update,"BT_LINK",NULL);
Ico_PutCalculateIcon (Txt_Update);
HTM_BUTTON_End ();
Frm_EndForm ();
}
/*****************************************************************************/
/*************************** Get number of followed **************************/
/*****************************************************************************/
void Fol_FlushCacheFollow (void)
{
Gbl.Cache.Follow.UsrCod = -1L;
Gbl.Cache.Follow.NumFollowing =
Gbl.Cache.Follow.NumFollowers = 0;
}
void Fol_GetNumFollow (long UsrCod,
unsigned *NumFollowing,unsigned *NumFollowers)
{
/***** 1. Fast check: trivial cases *****/
if (UsrCod <= 0)
{
*NumFollowing = *NumFollowers = 0;
return;
}
/***** 2. Fast check: Is number of following already calculated? *****/
if (UsrCod == Gbl.Cache.Follow.UsrCod)
{
*NumFollowing = Gbl.Cache.Follow.NumFollowing;
*NumFollowers = Gbl.Cache.Follow.NumFollowers;
return;
}
/***** 3. Slow check: Get number of following/followers from database *****/
Gbl.Cache.Follow.UsrCod = UsrCod;
*NumFollowing = Gbl.Cache.Follow.NumFollowing = Fol_DB_GetNumFollowing (UsrCod);
*NumFollowers = Gbl.Cache.Follow.NumFollowers = Fol_DB_GetNumFollowers (UsrCod);
}
/*****************************************************************************/
/**************** Show following and followers of a user *********************/
/*****************************************************************************/
void Fol_ShowFollowingAndFollowers (const struct UsrData *UsrDat,
unsigned NumFollowing,unsigned NumFollowers,
bool UsrFollowsMe,bool IFollowUsr)
{
extern const char *Txt_FOLLOWS_YOU;
extern const char *Txt_Following;
extern const char *Txt_Followers;
extern const char *Txt_Following_unfollow;
extern const char *Txt_Follow;
bool ItsMe = Usr_ItsMe (UsrDat->UsrCod);
/***** Begin section *****/
HTM_SECTION_Begin (Fol_FOLLOW_SECTION_ID);
/***** Followed users *****/
HTM_DIV_Begin ("id=\"following_side\"");
HTM_DIV_Begin ("class=\"FOLLOW_SIDE\"");
/* User follows me? */
HTM_DIV_Begin ("id=\"follows_me\" class=\"DAT_LIGHT\"");
if (UsrFollowsMe)
HTM_Txt (Txt_FOLLOWS_YOU);
HTM_DIV_End ();
/* Number of followed */
Fol_ShowNumberOfFollowingOrFollowers (UsrDat,
NumFollowing,
ActSeeFlg,Txt_Following);
/* End following side */
HTM_DIV_End ();
HTM_DIV_End ();
/***** Followers *****/
HTM_DIV_Begin ("id=\"followers_side\"");
HTM_DIV_Begin ("class=\"FOLLOW_SIDE\"");
/* Number of followers */
Fol_ShowNumberOfFollowingOrFollowers (UsrDat,
NumFollowers,
ActSeeFlr,Txt_Followers);
/* I follow user? */
HTM_DIV_Begin ("id=\"follow_usr\"");
if (Gbl.Usrs.Me.Logged && // Logged
!ItsMe) // Not me!
{
Frm_BeginForm (IFollowUsr ? ActUnfUsr :
ActFolUsr);
Usr_PutParamUsrCodEncrypted (UsrDat->EnUsrCod);
HTM_INPUT_IMAGE (Cfg_URL_ICON_PUBLIC,
IFollowUsr ? "user-check.svg" :
"user-plus.svg",
IFollowUsr ? Txt_Following_unfollow :
Txt_Follow,
"ICO_HIGHLIGHT ICO40x40");
Frm_EndForm ();
}
HTM_DIV_End ();
/* End followers side */
HTM_DIV_End ();
HTM_DIV_End ();
/***** End section *****/
HTM_SECTION_End ();
}
/*****************************************************************************/
/**************** Show following and followers of a user *********************/
/*****************************************************************************/
static void Fol_ShowNumberOfFollowingOrFollowers (const struct UsrData *UsrDat,
unsigned NumUsrs,
Act_Action_t Action,
const char *Title)
{
extern const char *The_ClassFormOutBox[The_NUM_THEMES];
extern const char *The_ClassFormOutBoxBold[The_NUM_THEMES];
extern const char *The_ClassFormLinkOutBox[The_NUM_THEMES];
extern const char *The_ClassFormLinkOutBoxBold[The_NUM_THEMES];
/***** Begin container *****/
HTM_DIV_Begin ("class=\"FOLLOW_BOX\"");
/***** Number *****/
if (NumUsrs)
{
/* Form to list users */
Frm_BeginFormAnchor (Action,Fol_FOLLOW_SECTION_ID);
Usr_PutParamUsrCodEncrypted (UsrDat->EnUsrCod);
HTM_BUTTON_SUBMIT_Begin (Title,
(Gbl.Action.Act == Action) ? "BT_LINK FOLLOW_NUM_B" :
"BT_LINK FOLLOW_NUM",
NULL);
}
else
HTM_SPAN_Begin ("class=\"%s\"",(Gbl.Action.Act == Action) ? "FOLLOW_NUM_B" :
"FOLLOW_NUM");
HTM_Unsigned (NumUsrs);
if (NumUsrs)
{
HTM_BUTTON_End ();
Frm_EndForm ();
}
else
HTM_SPAN_End ();
/***** Text *****/
HTM_DIV_Begin ("class=\"%s\"",
(Gbl.Action.Act == Action) ? The_ClassFormOutBoxBold[Gbl.Prefs.Theme] :
The_ClassFormOutBox [Gbl.Prefs.Theme]);
if (NumUsrs)
{
/* Form to list users */
Frm_BeginFormAnchor (Action,Fol_FOLLOW_SECTION_ID);
Usr_PutParamUsrCodEncrypted (UsrDat->EnUsrCod);
HTM_BUTTON_SUBMIT_Begin (Title,
(Gbl.Action.Act == Action) ? The_ClassFormLinkOutBoxBold[Gbl.Prefs.Theme] :
The_ClassFormLinkOutBox [Gbl.Prefs.Theme],
NULL);
}
HTM_Txt (Title);
if (NumUsrs)
{
HTM_BUTTON_End ();
Frm_EndForm ();
}
HTM_DIV_End ();
/***** End container *****/
HTM_DIV_End ();
}
/*****************************************************************************/
/***************************** List followed users ***************************/
/*****************************************************************************/
void Fol_ListFollowing (void)
{
/***** Get user to view user he/she follows *****/
Usr_GetParamOtherUsrCodEncryptedAndGetListIDs ();
if (Gbl.Usrs.Other.UsrDat.UsrCod > 0)
{
if (Usr_ChkUsrCodAndGetAllUsrDataFromUsrCod (&Gbl.Usrs.Other.UsrDat,
Usr_DONT_GET_PREFS,
Usr_DONT_GET_ROLE_IN_CURRENT_CRS))
Fol_ListFollowingUsr (&Gbl.Usrs.Other.UsrDat);
else
Ale_ShowAlertUserNotFoundOrYouDoNotHavePermission ();
}
else // If user not specified, view my profile
Fol_ListFollowingUsr (&Gbl.Usrs.Me.UsrDat);
}
static void Fol_ListFollowingUsr (struct UsrData *UsrDat)
{
extern const char *Txt_Following;
MYSQL_RES *mysql_res;
unsigned NumUsrs;
unsigned NumUsr;
struct UsrData FollowingUsrDat;
/***** Show user's profile *****/
if (Prf_ShowUserProfile (UsrDat))
{
/***** Get list of following *****/
NumUsrs = Fol_DB_GetListFollowing (UsrDat->UsrCod,&mysql_res);
if (NumUsrs)
{
/***** Initialize structure with user's data *****/
Usr_UsrDataConstructor (&FollowingUsrDat);
/***** Begin box and table *****/
Box_BoxTableBegin ("560px",Txt_Following,
NULL,NULL,
NULL,Box_NOT_CLOSABLE,2);
for (NumUsr = 0;
NumUsr < NumUsrs;
NumUsr++)
{
/***** Get user's code *****/
FollowingUsrDat.UsrCod = DB_GetNextCode (mysql_res);
/***** Show user *****/
if ((NumUsr % Fol_NUM_COLUMNS_FOLLOW) == 0)
HTM_TR_Begin (NULL);
if (Usr_ChkUsrCodAndGetAllUsrDataFromUsrCod (&FollowingUsrDat,
Usr_DONT_GET_PREFS,
Usr_DONT_GET_ROLE_IN_CURRENT_CRS))
Fol_ShowFollowedOrFollower (&FollowingUsrDat);
if ((NumUsr % Fol_NUM_COLUMNS_FOLLOW) == (Fol_NUM_COLUMNS_FOLLOW-1) ||
NumUsr == NumUsrs - 1)
HTM_TR_End ();
}
/***** End table and box *****/
Box_BoxTableEnd ();
/***** Free memory used for user's data *****/
Usr_UsrDataDestructor (&FollowingUsrDat);
}
/***** Free structure that stores the query result *****/
DB_FreeMySQLResult (&mysql_res);
}
else
Ale_ShowAlertUserNotFoundOrYouDoNotHavePermission ();
}
/*****************************************************************************/
/******************************* List followers ******************************/
/*****************************************************************************/
void Fol_ListFollowers (void)
{
/***** Get user to view user he/she follows *****/
Usr_GetParamOtherUsrCodEncryptedAndGetListIDs ();
if (Gbl.Usrs.Other.UsrDat.UsrCod > 0)
{
if (Usr_ChkUsrCodAndGetAllUsrDataFromUsrCod (&Gbl.Usrs.Other.UsrDat,
Usr_DONT_GET_PREFS,
Usr_DONT_GET_ROLE_IN_CURRENT_CRS))
Fol_ListFollowersUsr (&Gbl.Usrs.Other.UsrDat);
else
Ale_ShowAlertUserNotFoundOrYouDoNotHavePermission ();
}
else // If user not specified, view my profile
Fol_ListFollowersUsr (&Gbl.Usrs.Me.UsrDat);
}
static void Fol_ListFollowersUsr (struct UsrData *UsrDat)
{
extern const char *Txt_Followers;
MYSQL_RES *mysql_res;
unsigned NumUsrs;
unsigned NumUsr;
struct UsrData FollowerUsrDat;
bool ItsMe;
/***** Show user's profile *****/
if (Prf_ShowUserProfile (UsrDat))
{
/***** Get list of followers *****/
NumUsrs = Fol_DB_GetListFollowers (UsrDat->UsrCod,&mysql_res);
if (NumUsrs)
{
/***** Initialize structure with user's data *****/
Usr_UsrDataConstructor (&FollowerUsrDat);
/***** Begin box and table *****/
Box_BoxTableBegin ("560px",Txt_Followers,
NULL,NULL,
NULL,Box_NOT_CLOSABLE,2);
for (NumUsr = 0;
NumUsr < NumUsrs;
NumUsr++)
{
/***** Get user's code *****/
FollowerUsrDat.UsrCod = DB_GetNextCode (mysql_res);
/***** Show user *****/
if ((NumUsr % Fol_NUM_COLUMNS_FOLLOW) == 0)
HTM_TR_Begin (NULL);
if (Usr_ChkUsrCodAndGetAllUsrDataFromUsrCod (&FollowerUsrDat,
Usr_DONT_GET_PREFS,
Usr_DONT_GET_ROLE_IN_CURRENT_CRS))
Fol_ShowFollowedOrFollower (&FollowerUsrDat);
if ((NumUsr % Fol_NUM_COLUMNS_FOLLOW) == (Fol_NUM_COLUMNS_FOLLOW-1) ||
NumUsr == NumUsrs - 1)
HTM_TR_End ();
}
/***** End table and box *****/
Box_BoxTableEnd ();
/***** Free memory used for user's data *****/
Usr_UsrDataDestructor (&FollowerUsrDat);
}
/***** Free structure that stores the query result *****/
DB_FreeMySQLResult (&mysql_res);
/***** If it's me, mark possible notification as seen *****/
ItsMe = Usr_ItsMe (UsrDat->UsrCod);
if (ItsMe)
Ntf_DB_MarkNotifAsSeen (Ntf_EVENT_FOLLOWER,
-1L,-1L,
Gbl.Usrs.Me.UsrDat.UsrCod);
}
else
Ale_ShowAlertUserNotFoundOrYouDoNotHavePermission ();
}
/*****************************************************************************/
/************************* Show followed or follower *************************/
/*****************************************************************************/
static void Fol_ShowFollowedOrFollower (struct UsrData *UsrDat)
{
extern const char *Txt_Another_user_s_profile;
bool Visible = Pri_ShowingIsAllowed (UsrDat->BaPrfVisibility,UsrDat);
bool ItsMe = Usr_ItsMe (UsrDat->UsrCod);
/***** Show user's photo *****/
HTM_TD_Begin ("class=\"FOLLOW_PHOTO\"");
if (Visible)
Pho_ShowUsrPhotoIfAllowed (UsrDat,"PHOTO60x80",Pho_ZOOM,false);
HTM_TD_End ();
/***** Show user's name and icon to follow/unfollow *****/
HTM_TD_Begin ("class=\"FOLLOW_USR\"");
if (Visible)
{
/* Put form to go to public profile */
Frm_BeginForm (ActSeeOthPubPrf);
Usr_PutParamUsrCodEncrypted (UsrDat->EnUsrCod);
HTM_DIV_Begin ("class=\"FOLLOW_USR_NAME\""); // Limited width
HTM_BUTTON_SUBMIT_Begin (Txt_Another_user_s_profile,"BT_LINK LT DAT",NULL);
Usr_WriteFirstNameBRSurnames (UsrDat);
HTM_BUTTON_End ();
HTM_DIV_End ();
Frm_EndForm ();
}
ItsMe = Usr_ItsMe (UsrDat->UsrCod);
if (!Gbl.Usrs.Me.Logged || // Not logged
ItsMe) // It's me
/* Inactive icon to follow/unfollow */
Fol_PutInactiveIconToFollowUnfollow ();
else // It's not me
{
/* Put form to follow / unfollow */
if (Fol_DB_CheckUsrIsFollowerOf (Gbl.Usrs.Me.UsrDat.UsrCod,
UsrDat->UsrCod)) // I follow user
/* Form to unfollow */
Fol_PutIconToUnfollow (UsrDat);
else if (Visible) // I do not follow this user and I can follow
/* Form to follow */
Fol_PutIconToFollow (UsrDat);
}
HTM_TD_End ();
}
/*****************************************************************************/
/********************* Write the name of a connected user ********************/
/*****************************************************************************/
static void Fol_WriteRowUsrToFollowOnRightColumn (struct UsrData *UsrDat)
{
extern const char *Txt_Another_user_s_profile;
bool Visible = Pri_ShowingIsAllowed (UsrDat->BaPrfVisibility,UsrDat);
bool ItsMe = Usr_ItsMe (UsrDat->UsrCod);
/***** Show user's photo *****/
HTM_TR_Begin (NULL);
HTM_TD_Begin ("class=\"CON_PHOTO COLOR%u\"",Gbl.RowEvenOdd);
if (Visible)
Pho_ShowUsrPhotoIfAllowed (UsrDat,"PHOTO21x28",Pho_ZOOM,false);
HTM_TD_End ();
/***** User's name *****/
HTM_TD_Begin ("class=\"CON_NAME_FOLLOW COLOR%u\"",Gbl.RowEvenOdd);
if (Visible)
{
/* Put form to go to public profile */
Frm_BeginForm (ActSeeOthPubPrf);
Usr_PutParamUsrCodEncrypted (UsrDat->EnUsrCod);
HTM_DIV_Begin ("class=\"CON_NAME_FOLLOW\""); // Limited width
HTM_BUTTON_SUBMIT_Begin (Txt_Another_user_s_profile,
"BT_LINK CON_NAME_FOLLOW CON_CRS",NULL);
Usr_WriteFirstNameBRSurnames (UsrDat);
HTM_BUTTON_End ();
HTM_DIV_End ();
Frm_EndForm ();
}
HTM_TD_End ();
/***** Icon to follow *****/
HTM_TD_Begin ("class=\"CON_ICON_FOLLOW RM COLOR%u\"",Gbl.RowEvenOdd);
if (!Gbl.Usrs.Me.Logged || // Not logged
ItsMe) // It's me
/* Inactive icon to follow/unfollow */
Fol_PutInactiveIconToFollowUnfollow ();
else // It's not me
{
/* Put form to follow / unfollow */
if (Fol_DB_CheckUsrIsFollowerOf (Gbl.Usrs.Me.UsrDat.UsrCod,
UsrDat->UsrCod)) // I follow user
/* Form to unfollow */
Fol_PutIconToUnfollow (UsrDat);
else if (Visible) // I do not follow this user and I can follow
/* Form to follow */
Fol_PutIconToFollow (UsrDat);
}
HTM_TD_End ();
HTM_TR_End ();
Gbl.RowEvenOdd = 1 - Gbl.RowEvenOdd;
}
/*****************************************************************************/
/*********************** Put icon to unfollow another user *********************/
/*****************************************************************************/
static void Fol_PutInactiveIconToFollowUnfollow (void)
{
/***** Inactive icon to follow/unfollow *****/
HTM_DIV_Begin ("class=\"FOLLOW_USR_ICO ICO_HIDDEN\"");
Ico_PutIcon ("user.svg","","ICO16x16");
HTM_DIV_End ();
}
/*****************************************************************************/
/*********************** Put icon to follow another user *********************/
/*****************************************************************************/
static void Fol_PutIconToFollow (struct UsrData *UsrDat)
{
extern const char *Txt_Follow;
/***** Form to unfollow *****/
Frm_BeginForm (ActFolUsr);
Usr_PutParamUsrCodEncrypted (UsrDat->EnUsrCod);
HTM_INPUT_IMAGE (Cfg_URL_ICON_PUBLIC,"user-plus.svg",
Txt_Follow,"FOLLOW_USR_ICO ICO_HIGHLIGHT ICO16x16");
Frm_EndForm ();
}
/*****************************************************************************/
/********************** Put icon to unfollow another user ********************/
/*****************************************************************************/
static void Fol_PutIconToUnfollow (struct UsrData *UsrDat)
{
extern const char *Txt_Unfollow;
/* Form to follow */
Frm_BeginForm (ActUnfUsr);
Usr_PutParamUsrCodEncrypted (UsrDat->EnUsrCod);
HTM_INPUT_IMAGE (Cfg_URL_ICON_PUBLIC,"user-check.svg",
Txt_Unfollow,"FOLLOW_USR_ICO ICO_HIGHLIGHT ICO16x16");
Frm_EndForm ();
}
/*****************************************************************************/
/***************************** Follow another user ***************************/
/*****************************************************************************/
void Fol_FollowUsr1 (void)
{
/***** Get user to be followed *****/
if (Usr_GetParamOtherUsrCodEncryptedAndGetUsrData ())
{
// Follow only if I do not follow him/her
if (!Fol_DB_CheckUsrIsFollowerOf (Gbl.Usrs.Me.UsrDat.UsrCod,
Gbl.Usrs.Other.UsrDat.UsrCod))
Fol_FollowUsr (&Gbl.Usrs.Other.UsrDat);
Ale_CreateAlert (Ale_SUCCESS,NULL,""); // Txt not used
}
else
Ale_CreateAlertUserNotFoundOrYouDoNotHavePermission ();
}
void Fol_FollowUsr2 (void)
{
if (Ale_GetTypeOfLastAlert () == Ale_SUCCESS)
{
/***** Show user's profile again *****/
if (!Prf_ShowUserProfile (&Gbl.Usrs.Other.UsrDat))
/* 1) I had permission to follow the user and I've just follow him/her
2) User restricted permission, so now I can not view his/her profile
3) Now I can not view his/her profile ==> show users I follow */
Fol_ListFollowingUsr (&Gbl.Usrs.Me.UsrDat); // List users I follow
}
else
Ale_ShowAlerts (NULL);
}
/*****************************************************************************/
/***************************** Unfollow another user *************************/
/*****************************************************************************/
void Fol_UnfollowUsr1 (void)
{
/***** Get user to be unfollowed *****/
if (Usr_GetParamOtherUsrCodEncryptedAndGetUsrData ())
{
// Unfollow only if I follow him/her
if (Fol_DB_CheckUsrIsFollowerOf (Gbl.Usrs.Me.UsrDat.UsrCod,
Gbl.Usrs.Other.UsrDat.UsrCod))
Fol_UnfollowUsr (&Gbl.Usrs.Other.UsrDat);
Ale_CreateAlert (Ale_SUCCESS,NULL,""); // Txt not used
}
else
Ale_CreateAlertUserNotFoundOrYouDoNotHavePermission ();
}
void Fol_UnfollowUsr2 (void)
{
/***** Get user to be unfollowed *****/
if (Ale_GetTypeOfLastAlert () == Ale_SUCCESS)
{
/***** Show user's profile again *****/
if (!Prf_ShowUserProfile (&Gbl.Usrs.Other.UsrDat)) // I can not view user's profile
/* 1) I followed a user when I had permission
2) User restricted permission, so now I can not view his/her profile
3) Now I can not view his/her profile ==> show users I follow */
Fol_ListFollowingUsr (&Gbl.Usrs.Me.UsrDat); // List users I follow
}
else
Ale_ShowAlerts (NULL);
}
/*****************************************************************************/
/***************** Request follow/unfollow several users *********************/
/*****************************************************************************/
void Fol_RequestFollowStds (void)
{
Fol_RequestFollowUsrs (ActFolSevStd);
}
void Fol_RequestFollowTchs (void)
{
Fol_RequestFollowUsrs (ActFolSevTch);
}
static void Fol_RequestFollowUsrs (Act_Action_t NextAction)
{
extern const char *Txt_Follow;
extern const char *Txt_Do_you_want_to_follow_the_selected_user_whom_you_do_not_follow_yet;
extern const char *Txt_Do_you_want_to_follow_the_X_selected_users_whom_you_do_not_follow_yet;
unsigned NumFollowed;
unsigned NumNotFollowed;
// List of selected users is already got
/***** Go through list of selected users
getting the number of followed and not followed ****/
Fol_GetFollowedFromSelectedUsrs (&NumFollowed,&NumNotFollowed);
/***** Show question to confirm ****/
if (NumNotFollowed)
{
if (NumNotFollowed == 1)
Ale_ShowAlertAndButton (NextAction,NULL,NULL,
Fol_PutHiddenParSelectedUsrsCods,&Gbl.Usrs.Selected,
Btn_CREATE_BUTTON,Txt_Follow,
Ale_QUESTION,Txt_Do_you_want_to_follow_the_selected_user_whom_you_do_not_follow_yet);
else
Ale_ShowAlertAndButton (NextAction,NULL,NULL,
Fol_PutHiddenParSelectedUsrsCods,&Gbl.Usrs.Selected,
Btn_CREATE_BUTTON,Txt_Follow,
Ale_QUESTION,Txt_Do_you_want_to_follow_the_X_selected_users_whom_you_do_not_follow_yet,
NumNotFollowed);
}
/***** Free memory used by list of selected users' codes *****/
Usr_FreeListsSelectedEncryptedUsrsCods (&Gbl.Usrs.Selected);
}
void Fol_RequestUnfollowStds (void)
{
Fol_RequestUnfollowUsrs (ActUnfSevStd);
}
void Fol_RequestUnfollowTchs (void)
{
Fol_RequestUnfollowUsrs (ActUnfSevTch);
}
static void Fol_RequestUnfollowUsrs (Act_Action_t NextAction)
{
extern const char *Txt_Do_you_want_to_stop_following_the_selected_user_whom_you_follow;
extern const char *Txt_Do_you_want_to_stop_following_the_X_selected_users_whom_you_follow;
extern const char *Txt_Unfollow;
unsigned NumFollowed;
unsigned NumNotFollowed;
// List of selected users is already got
/***** Go through list of selected users
getting the number of followed and not followed ****/
Fol_GetFollowedFromSelectedUsrs (&NumFollowed,&NumNotFollowed);
/***** Show question to confirm ****/
if (NumFollowed)
{
if (NumFollowed == 1)
Ale_ShowAlertAndButton (NextAction,NULL,NULL,
Fol_PutHiddenParSelectedUsrsCods,&Gbl.Usrs.Selected,
Btn_CREATE_BUTTON,Txt_Unfollow,
Ale_QUESTION,Txt_Do_you_want_to_stop_following_the_selected_user_whom_you_follow);
else
Ale_ShowAlertAndButton (NextAction,NULL,NULL,
Fol_PutHiddenParSelectedUsrsCods,&Gbl.Usrs.Selected,
Btn_CREATE_BUTTON,Txt_Unfollow,
Ale_QUESTION,Txt_Do_you_want_to_stop_following_the_X_selected_users_whom_you_follow,
NumFollowed);
}
/***** Free memory used by list of selected users' codes *****/
Usr_FreeListsSelectedEncryptedUsrsCods (&Gbl.Usrs.Selected);
}
static void Fol_PutHiddenParSelectedUsrsCods (void *SelectedUsrs)
{
if (SelectedUsrs)
Usr_PutHiddenParSelectedUsrsCods ((struct SelectedUsrs *) SelectedUsrs);
}
/*****************************************************************************/
/**** Go through the list getting the number of followed and not followed ****/
/*****************************************************************************/
static void Fol_GetFollowedFromSelectedUsrs (unsigned *NumFollowed,
unsigned *NumNotFollowed)
{
extern const char *Txt_Selected_users_X_Followed_Y_Not_followed_Z;
struct UsrData UsrDat;
const char *Ptr;
unsigned NumUsrs = 0;
/***** Initialize structure with user's data *****/
Usr_UsrDataConstructor (&UsrDat);
/***** Check users to know if I follow them *****/
*NumFollowed = 0;
Ptr = Gbl.Usrs.Selected.List[Rol_UNK];
while (*Ptr)
{
Par_GetNextStrUntilSeparParamMult (&Ptr,UsrDat.EnUsrCod,
Cry_BYTES_ENCRYPTED_STR_SHA256_BASE64);
Usr_GetUsrCodFromEncryptedUsrCod (&UsrDat);
if (Gbl.Usrs.Me.UsrDat.UsrCod != UsrDat.UsrCod) // Skip me
if (Usr_ChkUsrCodAndGetAllUsrDataFromUsrCod (&UsrDat,
Usr_DONT_GET_PREFS,
Usr_DONT_GET_ROLE_IN_CURRENT_CRS)) // Get from the database the data of the student
if (Usr_CheckIfUsrBelongsToCurrentCrs (&UsrDat))
{
/* Check if I follow this user, and update number of users */
if (Fol_DB_CheckUsrIsFollowerOf (Gbl.Usrs.Me.UsrDat.UsrCod,
UsrDat.UsrCod)) // I follow user
(*NumFollowed)++;
NumUsrs++;
}
}
/***** Free memory used for user's data *****/
Usr_UsrDataDestructor (&UsrDat);
/***** Show alert ****/
*NumNotFollowed = NumUsrs - *NumFollowed;
Ale_ShowAlert (Ale_INFO,Txt_Selected_users_X_Followed_Y_Not_followed_Z,
NumUsrs,*NumFollowed,*NumNotFollowed);
}
/*****************************************************************************/
/********************** Follow/unfollow several users ************************/
/*****************************************************************************/
void Fol_FollowUsrs ()
{
extern const char *Txt_You_have_followed_one_user;
extern const char *Txt_You_have_followed_X_users;
const char *Ptr;
struct UsrData UsrDat;
unsigned NumFollowed = 0;
/***** Get list of selected users if not already got *****/
Usr_GetListsSelectedEncryptedUsrsCods (&Gbl.Usrs.Selected);
/***** Initialize structure with user's data *****/
Usr_UsrDataConstructor (&UsrDat);
/***** Check users to know if I follow them *****/
Ptr = Gbl.Usrs.Selected.List[Rol_UNK];
while (*Ptr)
{
Par_GetNextStrUntilSeparParamMult (&Ptr,UsrDat.EnUsrCod,
Cry_BYTES_ENCRYPTED_STR_SHA256_BASE64);
Usr_GetUsrCodFromEncryptedUsrCod (&UsrDat);
if (Gbl.Usrs.Me.UsrDat.UsrCod != UsrDat.UsrCod) // Skip me
if (Usr_ChkUsrCodAndGetAllUsrDataFromUsrCod (&UsrDat, // Get user's data from database
Usr_DONT_GET_PREFS,
Usr_DONT_GET_ROLE_IN_CURRENT_CRS))
if (Usr_CheckIfUsrBelongsToCurrentCrs (&UsrDat))
/* If I don't follow this user ==> follow him/her */
if (!Fol_DB_CheckUsrIsFollowerOf (Gbl.Usrs.Me.UsrDat.UsrCod,
UsrDat.UsrCod))
{
Fol_FollowUsr (&UsrDat);
NumFollowed++;
}
}
/***** Free memory used for user's data *****/
Usr_UsrDataDestructor (&UsrDat);
/***** Free memory used by list of selected users' codes *****/
Usr_FreeListsSelectedEncryptedUsrsCods (&Gbl.Usrs.Selected);
/***** Show alert *****/
if (NumFollowed == 1)
Ale_ShowAlert (Ale_SUCCESS,Txt_You_have_followed_one_user);
else
Ale_ShowAlert (Ale_SUCCESS,Txt_You_have_followed_X_users,
NumFollowed);
}
void Fol_UnfollowUsrs (void)
{
extern const char *Txt_You_have_stopped_following_one_user;
extern const char *Txt_You_have_stopped_following_X_users;
const char *Ptr;
struct UsrData UsrDat;
unsigned NumUnfollowed = 0;
/***** Get list of selected users if not already got *****/
Usr_GetListsSelectedEncryptedUsrsCods (&Gbl.Usrs.Selected);
/***** Initialize structure with user's data *****/
Usr_UsrDataConstructor (&UsrDat);
/***** Check users to know if I follow them *****/
Ptr = Gbl.Usrs.Selected.List[Rol_UNK];
while (*Ptr)
{
Par_GetNextStrUntilSeparParamMult (&Ptr,UsrDat.EnUsrCod,
Cry_BYTES_ENCRYPTED_STR_SHA256_BASE64);
Usr_GetUsrCodFromEncryptedUsrCod (&UsrDat);
if (Gbl.Usrs.Me.UsrDat.UsrCod != UsrDat.UsrCod) // Skip me
if (Usr_ChkUsrCodAndGetAllUsrDataFromUsrCod (&UsrDat, // Get user's data from database
Usr_DONT_GET_PREFS,
Usr_DONT_GET_ROLE_IN_CURRENT_CRS))
if (Usr_CheckIfUsrBelongsToCurrentCrs (&UsrDat))
/* If I follow this user ==> unfollow him/her */
if (Fol_DB_CheckUsrIsFollowerOf (Gbl.Usrs.Me.UsrDat.UsrCod,
UsrDat.UsrCod))
{
Fol_UnfollowUsr (&UsrDat);
NumUnfollowed++;
}
}
/***** Free memory used for user's data *****/
Usr_UsrDataDestructor (&UsrDat);
/***** Free memory used by list of selected users' codes *****/
Usr_FreeListsSelectedEncryptedUsrsCods (&Gbl.Usrs.Selected);
/***** Show alert *****/
if (NumUnfollowed == 1)
Ale_ShowAlert (Ale_SUCCESS,Txt_You_have_stopped_following_one_user);
else
Ale_ShowAlert (Ale_SUCCESS,Txt_You_have_stopped_following_X_users,
NumUnfollowed);
}
/*****************************************************************************/
/******************************** Follow user ********************************/
/*****************************************************************************/
static void Fol_FollowUsr (struct UsrData *UsrDat)
{
bool CreateNotif;
bool NotifyByEmail;
/***** Avoid wrong cases *****/
if (Gbl.Usrs.Me.UsrDat.UsrCod <= 0 ||
UsrDat->UsrCod <= 0 ||
Gbl.Usrs.Me.UsrDat.UsrCod == UsrDat->UsrCod) // Skip me
return;
/***** Follow user in database *****/
Fol_DB_FollowUsr (UsrDat->UsrCod);
/***** Flush cache *****/
Fol_FlushCacheFollow ();
/***** This follow must be notified by email? *****/
CreateNotif = (UsrDat->NtfEvents.CreateNotif & (1 << Ntf_EVENT_FOLLOWER));
NotifyByEmail = CreateNotif &&
(UsrDat->NtfEvents.SendEmail & (1 << Ntf_EVENT_FOLLOWER));
/***** Create notification for this followed.
If this followed wants to receive notifications by email,
activate the sending of a notification *****/
if (CreateNotif)
Ntf_DB_StoreNotifyEventToOneUser (Ntf_EVENT_FOLLOWER,UsrDat,Gbl.Usrs.Me.UsrDat.UsrCod,
(Ntf_Status_t) (NotifyByEmail ? Ntf_STATUS_BIT_EMAIL :
0),
Gbl.Hierarchy.Ins.InsCod,
Gbl.Hierarchy.Ctr.CtrCod,
Gbl.Hierarchy.Deg.DegCod,
Gbl.Hierarchy.Crs.CrsCod);
}
/*****************************************************************************/
/******************************* Unfollow user *******************************/
/*****************************************************************************/
static void Fol_UnfollowUsr (struct UsrData *UsrDat)
{
/***** Avoid wrong cases *****/
if (Gbl.Usrs.Me.UsrDat.UsrCod <= 0 ||
UsrDat->UsrCod <= 0 ||
Gbl.Usrs.Me.UsrDat.UsrCod == UsrDat->UsrCod) // Skip me
return;
/***** Unfollow user in database *****/
Fol_DB_UnfollowUsr (UsrDat->UsrCod);
/***** Flush cache *****/
Fol_FlushCacheFollow ();
}
/*****************************************************************************/
/****** Get and show ranking of users attending to number of followers *******/
/*****************************************************************************/
void Fol_GetAndShowRankingFollowers (void)
{
MYSQL_RES *mysql_res;
unsigned NumUsrs;
/***** Get ranking from database *****/
NumUsrs = Fol_DB_GetRankingFollowers (&mysql_res);
/***** Show ranking *****/
Prf_ShowRankingFigure (&mysql_res,NumUsrs);
}
/*****************************************************************************/
/********************* Get notification of a new follower ********************/
/*****************************************************************************/
void Fol_GetNotifFollower (char SummaryStr[Ntf_MAX_BYTES_SUMMARY + 1],
char **ContentStr)
{
SummaryStr[0] = '\0'; // Return nothing on error
if ((*ContentStr = malloc (1)))
*ContentStr[0] = '\0';
}
/*****************************************************************************/
/*********************** Remove user from user follow ************************/
/*****************************************************************************/
void Fol_RemoveUsrFromUsrFollow (long UsrCod)
{
/***** Remove user from followers and followed *****/
Fol_DB_RemoveUsrFromUsrFollow (UsrCod);
/***** Flush cache *****/
Fol_FlushCacheFollow ();
}
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