mirror of https://github.com/acanas/swad-core.git
Version 15.116
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8ae6904a57
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c836c63318
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@ -122,13 +122,14 @@
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/****************************** Public constants *****************************/
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/*****************************************************************************/
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#define Log_PLATFORM_VERSION "SWAD 15.115.2 (2016-01-17)"
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#define Log_PLATFORM_VERSION "SWAD 15.116 (2016-01-17)"
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#define CSS_FILE "swad15.115.css"
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#define JS_FILE "swad15.115.js"
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// Number of lines (includes comments but not blank lines) has been got with the following command:
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// nl swad*.c swad*.h css/swad*.css py/swad*.py js/swad*.js soap/swad*.h sql/swad*.sql | tail -1
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/*
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Version 15.116: Jan 17, 2016 Optimization in the query to get timeline. (192878 lines)
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Version 15.115.2: Jan 17, 2016 Code refactoring in timeline. (192860 lines)
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Version 15.115.1: Jan 17, 2016 Code refactoring in timeline. (192857 lines)
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Version 15.115: Jan 17, 2016 Code refactoring in actions. (192823 lines)
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199
swad_social.c
199
swad_social.c
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@ -51,9 +51,9 @@
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#define Soc_WIDTH_TIMELINE "560px"
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#define Soc_MAX_NUM_SHARERS_SHOWN 10 // Maximum number of users shown who have share a social note
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#define Soc_MAX_BYTES_SUMMARY 100
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#define Soc_MAX_CHARS_IN_POST 1000
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#define Soc_MAX_BYTES_SUMMARY 1000
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#define Soc_MAX_CHARS_IN_POST 1000
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// Number of recent publishings got and shown the first time, before refreshing
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#define Soc_MAX_NEW_PUBS_TO_GET_AND_SHOW 10000 // Unlimited
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@ -446,16 +446,25 @@ static void Soc_BuildQueryToGetTimeline (Soc_TimelineUsrOrGbl_t TimelineUsrOrGbl
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char *Query)
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{
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char SubQueryPublishers[128];
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char SubQueryRangePubs[128];
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char SubQueryRangeBottom[128];
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char SubQueryRangeTop[128];
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char SubQueryAlreadyExists[256];
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long LastPubCod;
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long FirstPubCod;
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struct
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{
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long Top;
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long Bottom;
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} RangePubsToGet;
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MYSQL_RES *mysql_res;
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MYSQL_ROW row;
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unsigned MaxPubsToGet = 0; // Initialized to avoid warning
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unsigned NumPub;
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long PubCod;
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long NotCod;
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const unsigned MaxPubsToGet[3] =
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{
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Soc_MAX_NEW_PUBS_TO_GET_AND_SHOW, // Soc_GET_ONLY_NEW_PUBS
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Soc_MAX_REC_PUBS_TO_GET_AND_SHOW, // Soc_GET_RECENT_TIMELINE
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Soc_MAX_OLD_PUBS_TO_GET_AND_SHOW, // Soc_GET_ONLY_OLD_PUBS
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};
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/***** Clear social timeline for this session in database *****/
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if (WhatToGetFromTimeline == Soc_GET_RECENT_TIMELINE)
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@ -484,60 +493,6 @@ static void Soc_BuildQueryToGetTimeline (Soc_TimelineUsrOrGbl_t TimelineUsrOrGbl
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if (mysql_query (&Gbl.mysql,Query))
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DB_ExitOnMySQLError ("can not create temporary table");
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/***** Create subquery with range of publishings to get from social_pubs *****/
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switch (WhatToGetFromTimeline)
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{
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case Soc_GET_ONLY_NEW_PUBS: // Get the publishings (without limit) newer than LastPubCod
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/* This query is made via AJAX automatically from time to time */
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MaxPubsToGet = Soc_MAX_NEW_PUBS_TO_GET_AND_SHOW;
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LastPubCod = Soc_GetPubCodFromSession ("LastPubCod");
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if (LastPubCod > 0)
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switch (TimelineUsrOrGbl)
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{
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case Soc_TIMELINE_USR: // Show the timeline of a user
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sprintf (SubQueryRangePubs,"PubCod>'%ld' AND ",
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LastPubCod);
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break;
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case Soc_TIMELINE_GBL: // Show the timeline of the users I follow
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sprintf (SubQueryRangePubs,"social_pubs.PubCod>'%ld' AND ",
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LastPubCod);
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break;
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}
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else
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SubQueryRangePubs[0] = '\0';
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break;
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case Soc_GET_RECENT_TIMELINE: // Get some limited recent publishings
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/* This is the first query to get initial timeline shown
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==> no notes yet in current timeline table */
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MaxPubsToGet = Soc_MAX_REC_PUBS_TO_GET_AND_SHOW;
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SubQueryRangePubs[0] = '\0';
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break;
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case Soc_GET_ONLY_OLD_PUBS: // Get some limited publishings older than FirstPubCod
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/* This query is made via AJAX
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when I click in link to get old publishings */
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MaxPubsToGet = Soc_MAX_OLD_PUBS_TO_GET_AND_SHOW;
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FirstPubCod = Soc_GetPubCodFromSession ("FirstPubCod");
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if (FirstPubCod > 0)
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switch (TimelineUsrOrGbl)
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{
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case Soc_TIMELINE_USR: // Show the timeline of a user
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sprintf (SubQueryRangePubs,"PubCod<'%ld' AND ",
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FirstPubCod);
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break;
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case Soc_TIMELINE_GBL: // Show the timeline of the users I follow
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sprintf (SubQueryRangePubs,"social_pubs.PubCod<'%ld' AND ",
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FirstPubCod);
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break;
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}
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else
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SubQueryRangePubs[0] = '\0';
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break;
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}
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/***** Create temporary table and subquery with potential publishers *****/
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switch (TimelineUsrOrGbl)
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{
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@ -594,10 +549,52 @@ static void Soc_BuildQueryToGetTimeline (Soc_TimelineUsrOrGbl_t TimelineUsrOrGbl
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}
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/***** Get the publishings in timeline *****/
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/* Initialize range of pubs:
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social_pubs
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_____
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|_____|11
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|_____|10
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_|_____| 9 <-- RangePubsToGet.Top
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Get / |_____| 8
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pubs | |_____| 7
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from < |_____| 6
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this | |_____| 5
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range \_|_____| 4
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|_____| 3 <-- RangePubsToGet.Bottom
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|_____| 2
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|_____| 1
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0
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*/
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switch (WhatToGetFromTimeline)
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{
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case Soc_GET_ONLY_NEW_PUBS: // Get the publishings (without limit) newer than LastPubCod
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/* This query is made via AJAX automatically from time to time */
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RangePubsToGet.Top = 0; // +Infinite
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RangePubsToGet.Bottom = Soc_GetPubCodFromSession ("LastPubCod");
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break;
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case Soc_GET_RECENT_TIMELINE: // Get some limited recent publishings
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/* This is the first query to get initial timeline shown
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==> no notes yet in current timeline table */
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RangePubsToGet.Top = 0; // +Infinite
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RangePubsToGet.Bottom = 0; // -Infinite
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break;
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case Soc_GET_ONLY_OLD_PUBS: // Get some limited publishings older than FirstPubCod
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/* This query is made via AJAX
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when I click in link to get old publishings */
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RangePubsToGet.Top = Soc_GetPubCodFromSession ("FirstPubCod");
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RangePubsToGet.Bottom = 0; // -Infinite
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break;
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}
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/*
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With the current approach, we select one by one
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the publishings and notes in a loop. In each iteration,
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we get the more recent note that is not already retrieved.
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we get the more recent publishing (original, shared or commment)
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of every set of publishings corresponding to the same note:
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checking that the note is not already retrieved.
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After getting a publishing, its note code is stored
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in order to not get it again.
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As an alternative, we tried to get the maximum PubCod,
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i.e more recent publishing (original, shared or commment),
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but this query is slow (several seconds) with a big table.
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*/
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for (NumPub = 0;
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NumPub < MaxPubsToGet;
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NumPub < MaxPubsToGet[WhatToGetFromTimeline];
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NumPub++)
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{
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/* Create subqueries with range of publishings to get from social_pubs */
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if (RangePubsToGet.Bottom > 0)
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sprintf (SubQueryRangeBottom,
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TimelineUsrOrGbl == Soc_TIMELINE_USR ? "PubCod>'%ld' AND " :
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"social_pubs.PubCod>'%ld' AND ",
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RangePubsToGet.Bottom);
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else
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SubQueryRangeBottom[0] = '\0';
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if (RangePubsToGet.Top > 0)
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sprintf (SubQueryRangeTop,
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TimelineUsrOrGbl == Soc_TIMELINE_USR ? "PubCod<'%ld' AND " :
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"social_pubs.PubCod<'%ld' AND ",
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RangePubsToGet.Top);
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else
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SubQueryRangeTop[0] = '\0';
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/* Select the most recent publishing from social_pubs */
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switch (TimelineUsrOrGbl)
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{
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case Soc_TIMELINE_USR: // Show the timeline of a user
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sprintf (Query,"SELECT PubCod,NotCod FROM social_pubs"
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" WHERE %s%s%s"
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" WHERE %s%s%s%s"
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" ORDER BY PubCod DESC LIMIT 1",
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SubQueryRangePubs,
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SubQueryRangeBottom,SubQueryRangeTop,
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SubQueryPublishers,
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SubQueryAlreadyExists);
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break;
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case Soc_TIMELINE_GBL: // Show the timeline of the users I follow
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sprintf (Query,"SELECT PubCod,NotCod FROM social_pubs,publishers"
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" WHERE %s%s%s"
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" WHERE %s%s%s%s"
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" ORDER BY social_pubs.PubCod DESC LIMIT 1",
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SubQueryRangePubs,
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SubQueryRangeBottom,SubQueryRangeTop,
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SubQueryPublishers,
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SubQueryAlreadyExists);
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break;
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PubCod = Str_ConvertStrCodToLongCod (row[0]);
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sprintf (Query,"INSERT INTO pub_codes SET PubCod='%ld'",PubCod);
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DB_QueryINSERT (Query,"can not store publishing code");
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RangePubsToGet.Top = PubCod; // Narrow the range for the next iteration
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/* Get social note code (row[1]) */
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NotCod = Str_ConvertStrCodToLongCod (row[1]);
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sprintf (Query,"INSERT INTO current_timeline SET NotCod='%ld'",NotCod);
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DB_QueryINSERT (Query,"can not store note code");
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}
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else
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else // Nothing got ==> abort loop
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break; // Last publishing
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}
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@ -739,34 +754,34 @@ static void Soc_DropTemporaryTablesUsedToQueryTimeline (void)
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/*****************************************************************************/
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/*********************** Show social activity (timeline) *********************/
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/*****************************************************************************/
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/*
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/ +-----+ just_now_timeline_list (Posts retrieved automatically
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| |-----| via AJAX from time to time.
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| +-----+ They are transferred inmediately
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/* _____
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/ |_____| just_now_timeline_list (Posts retrieved automatically
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| |_____| via AJAX from time to time.
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| |_____| They are transferred inmediately
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| | to new_timeline_list.)
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Hidden < v
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| +-----+ new_timeline_list (Posts retrieved but hidden.
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| |-----| When user clicks to view them,
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| |-----| they are transferred
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\ +-----+ to visible timeline_list.)
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Hidden < __v__
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| |_____| new_timeline_list (Posts retrieved but hidden.
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| |_____| When user clicks to view them,
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| |_____| they are transferred
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\ |_____| to visible timeline_list.)
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v
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/ +-----+ timeline_list (Posts visible on page)
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| |-----|
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Visible | |-----|
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on < |-----|
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page | |-----|
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| |-----|
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\ +-----+
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__v__
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/ |_____| timeline_list (Posts visible on page)
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| |_____|
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Visible | |_____|
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on < |_____|
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page | |_____|
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| |_____|
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\ |_____|
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^
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/ +-----+ old_timeline_list (Posts just retrieved via AJAX
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| |-----| when user clicks "see more".
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| |-----| They are transferred inmediately
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Hidden < |-----| to timeline_list.)
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| |-----|
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| |-----|
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\ +-----+
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__|__
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/ |_____| old_timeline_list (Posts just retrieved via AJAX
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| |_____| when user clicks "see more".
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| |_____| They are transferred inmediately
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Hidden < |_____| to timeline_list.)
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| |_____|
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| |_____|
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\ |_____|
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*/
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static void Soc_ShowTimeline (const char *Query,const char *Title,
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long NotCodToHighlight)
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