/*
** Copyright (c) 2007 D. Richard Hipp
**
** This program is free software; you can redistribute it and/or
** modify it under the terms of the GNU General Public
** License version 2 as published by the Free Software Foundation.
**
** 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
** General Public License for more details.
**
** You should have received a copy of the GNU General Public
** License along with this library; if not, write to the
** Free Software Foundation, Inc., 59 Temple Place - Suite 330,
** Boston, MA 02111-1307, USA.
**
** Author contact information:
** drh@hwaci.com
** http://www.hwaci.com/drh/
**
*******************************************************************************
**
** This file contains code to implement the timeline web page
**
*/
#include "config.h"
#include "timeline.h"
/*
** Generate a hyperlink to a version.
*/
void hyperlink_to_uuid(const char *zUuid){
char zShortUuid[UUID_SIZE+1];
sprintf(zShortUuid, "%.10s", zUuid);
if( g.okHistory ){
@ <a href="%s(g.zBaseURL)/vinfo/%s(zUuid)">[%s(zShortUuid)]</a>
}else{
@ <b>[%s(zShortUuid)]</b>
}
}
/*
** Generate a hyperlink to a diff between two versions.
*/
void hyperlink_to_diff(const char *zV1, const char *zV2){
if( g.okHistory ){
if( zV2==0 ){
@ <a href="%s(g.zBaseURL)/diff?v2=%s(zV1)">[diff]</a>
}else{
@ <a href="%s(g.zBaseURL)/diff?v1=%s(zV1)&v2=%s(zV2)">[diff]</a>
}
}
}
/*
** Output a timeline in the web format given a query. The query
** should return 4 columns:
**
** 0. UUID
** 1. Date/Time
** 2. Comment string
** 3. User
*/
void www_print_timeline(Stmt *pQuery, char *zLastDate){
char zPrevDate[20];
zPrevDate[0] = 0;
@ <table cellspacing=0 border=0 cellpadding=0>
while( db_step(pQuery)==SQLITE_ROW ){
const char *zDate = db_column_text(pQuery, 1);
if( memcmp(zDate, zPrevDate, 10) ){
sprintf(zPrevDate, "%.10s", zDate);
@ <tr><td colspan=3>
@ <table cellpadding=2 border=0>
@ <tr><td bgcolor="#a0b5f4" class="border1">
@ <table cellpadding=2 cellspacing=0 border=0><tr>
@ <td bgcolor="#d0d9f4" class="bkgnd1">%s(zPrevDate)</td>
@ </tr></table>
@ </td></tr></table>
@ </td></tr>
}
@ <tr><td valign="top">%s(&zDate[11])</td>
@ <td width="20"></td>
@ <td valign="top" align="left">
hyperlink_to_uuid(db_column_text(pQuery,0));
@ %h(db_column_text(pQuery,2)) (by %h(db_column_text(pQuery,3)))</td>
if( zLastDate ){
strcpy(zLastDate, zDate);
}
}
@ </table>
}
/*
** WEBPAGE: timeline
*/
void page_timeline(void){
Stmt q;
char *zSQL;
char zDate[100];
const char *zStart = P("d");
int nEntry = atoi(PD("n","25"));
/* To view the timeline, must have permission to read project data.
*/
login_check_credentials();
if( !g.okRead ){ login_needed(); return; }
style_header("Timeline");
if( !g.okHistory &&
db_exists("SELECT 1 FROM user"
" WHERE login='anonymous'"
" AND cap LIKE '%%h%%'") ){
@ <p><b>Note:</b> You will be able to see much more timeline
@ information if <a href="%s(g.zBaseURL)/login">login</a>.</p>
}
zSQL = mprintf(
"SELECT uuid, datetime(event.mtime,'localtime'), comment, user"
" FROM event, blob"
" WHERE event.type='ci' AND blob.rid=event.objid"
);
if( zStart ){
while( isspace(zStart[0]) ){ zStart++; }
if( zStart[0] ){
zSQL = mprintf("%z AND event.mtime<=julianday(%Q, 'localtime')",
zSQL, zStart);
}
}
zSQL = mprintf("%z ORDER BY event.mtime DESC LIMIT %d", zSQL, nEntry);
db_prepare(&q, zSQL);
free(zSQL);
www_print_timeline(&q, zDate);
db_finalize(&q);
if( zStart==0 ){
zStart = zDate;
}
@ <hr>
@ <form method="GET" action="%s(g.zBaseURL)/timeline">
@ Start Date:
@ <input type="text" size="30" value="%h(zStart)" name="d">
@ Number Of Entries:
@ <input type="text" size="4" value="%d(nEntry)" name="n">
@ <br><input type="submit" value="Submit">
@ </form>
@ <form method="GET" action="%s(g.zBaseURL)/timeline">
@ <input type="hidden" value="%h(zDate)" name="d">
@ <input type="hidden" value="%d(nEntry)" name="n">
@ <input type="submit" value="Next %d(nEntry) Rows">
@ </form>
style_footer();
}
/*
** The input query q selects various records. Print a human-readable
** summary of those records.
**
** Limit the number of entries printed to nLine.
*/
void print_timeline(Stmt *q, int mxLine){
int nLine = 0;
char zPrevDate[20];
zPrevDate[0] = 0;
while( db_step(q)==SQLITE_ROW && nLine<=mxLine ){
const char *zId = db_column_text(q, 0);
const char *zDate = db_column_text(q, 1);
const char *zCom = db_column_text(q, 2);
char zUuid[UUID_SIZE+1];
sprintf(zUuid, "%.10s", zId);
if( memcmp(zDate, zPrevDate, 10) ){
printf("=== %.10s ===\n", zDate);
memcpy(zPrevDate, zDate, 10);
nLine++;
}
if( zCom==0 ) zCom = "";
printf("%.5s [%.10s] ", &zDate[11], zUuid);
nLine += comment_print(zCom, 19, 79);
}
}
/*
** COMMAND: timeline
**
** The timeline command works very much like the timeline webpage, but
** shows much less data and has fewer configuration options. It is
** intended as a convenient shortcut for the common case of seeing
** recent changes.
*/
void timeline_cmd(void){
Stmt q;
db_must_be_within_tree();
db_prepare(&q,
"SELECT uuid, datetime(event.mtime,'localtime'),"
" comment || ' (by ' || user || ')'"
" FROM event, blob"
" WHERE event.type='ci' AND blob.rid=event.objid"
" ORDER BY event.mtime DESC"
);
print_timeline(&q, 20);
db_finalize(&q);
}