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Overview
Comment:Fixes to the forum hierarchical display algorithm.
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | forum-v2
Files: files | file ages | folders
SHA3-256: 9757488a5dc0edc899cc5fca0c78b73dc43a5f808cb6b5189edf722fe771a1ca
User & Date: drh 2018-07-26 01:02:58
Context
2018-07-26
01:33
Automatic scroll to the specific message of the thread when calling /info on a forum message. (check-in: 8f0e18f4 user: drh tags: forum-v2)
01:02
Fixes to the forum hierarchical display algorithm. (check-in: 9757488a user: drh tags: forum-v2)
2018-07-25
22:34
Begin adding style to the forum display. (check-in: 8eccd9a2 user: drh tags: forum-v2)
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Changes to src/default_css.txt. 

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}
div.forumHier, div.forumTime {
  border: 1px solid black;
  padding-left: 1ex;
  padding-right: 1ex;
  margin-top: 1ex;
}











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}
div.forumHier, div.forumTime {
  border: 1px solid black;
  padding-left: 1ex;
  padding-right: 1ex;
  margin-top: 1ex;
}
div.forumSel {
  background-color: #cef;
}

Changes to src/forum.c. 

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static void forumthread_display_order(
  ForumThread *pThread,
  ForumEntry *p,
  int fpid,
  int nIndent
){
  while( p ){
    if( p->pEdit==0 && p->mfirt==fpid ){
      p->nIndent = nIndent;
      forumentry_add_to_display(pThread, p);
      forumthread_display_order(pThread, p->pNext, p->fpid, nIndent+1);
    }
    p = p->pNext;
  }
}
................................................................................
  /* Establish which entries are the latest edit.  After this loop
  ** completes, entries that have non-NULL pLeaf should not be
  ** displayed.
  */
  for(pEntry=pThread->pFirst; pEntry; pEntry=pEntry->pNext){
    if( pEntry->fprev ){
      ForumEntry *pBase, *p;
      pBase = p = forumentry_backward(pEntry->pPrev, pEntry->fprev);
      pEntry->pEdit = p;
      while( p ){
        pBase = p;
        p->pLeaf = pEntry;
        p = pBase->pEdit;
      }
      for(p=pEntry->pNext; p; p=p->pNext){
        if( p->mfirt==pEntry->fpid ) p->mfirt = pBase->mfirt;
      }
    }
  }

  /* Compute the display order */
  pEntry = pThread->pFirst;
  pEntry->nIndent = 1;
................................................................................
    int fpid = db_column_int(&q, 0);
    int fprev = db_column_int(&q, 1);
    int firt = db_column_int(&q, 2);
    const char *zUuid = db_column_text(&q, 3);
    const char *zDate = db_column_text(&q, 4);
    Manifest *pPost = manifest_get(fpid, CFTYPE_FORUM, 0);
    if( pPost==0 ) continue;



    @ <div id="forum%d(fpid)" class="forumTime">

    if( pPost->zThreadTitle ){
      @ <h1>%h(pPost->zThreadTitle)</h1>
    }
    @ <p>By %h(pPost->zUser) on %h(zDate) (%d(fpid))
    if( fprev ){
      @ edit of %d(fprev)
    }
................................................................................

/*
** Display all messages in a forumthread with indentation.
*/
static int forum_display_hierarchical(int froot, int target){
  ForumThread *pThread;
  ForumEntry *p;
  Manifest *pPost;
  int fpid;
  char *zDate;
  char *zUuid;


  pThread = forumthread_create(froot);







  for(p=pThread->pDisplay; p; p=p->pDisplay){


    fpid = p->pLeaf ? p->pLeaf->fpid : p->fpid;






    if( p->nIndent==1 ){
      @ <div id='forum(%d(fpid)' class='forumHierRoot'>
    }else{
      @ <div id='forum%d(fpid)' class='forumHier' \
      @ style='margin-left: %d((p->nIndent-1)*3)ex;'>
    }
    pPost = manifest_get(fpid, CFTYPE_FORUM, 0);
    if( pPost==0 ) continue;
    if( pPost->zThreadTitle ){
      @ <h1>%h(pPost->zThreadTitle)</h1>
    }









    zDate = db_text(0, "SELECT datetime(%.17g)", pPost->rDate);



    @ <p>By %h(pPost->zUser) on %h(zDate) (%d(fpid))

    fossil_free(zDate);

    zUuid = rid_to_uuid(fpid);
    if( g.perm.Debug ){
      @ <span class="debug">\
      @ <a href="%R/artifact/%h(zUuid)">artifact</a></span>


    }
    forum_render(0, pPost->zMimetype, pPost->zWiki, 0);
    if( g.perm.WrForum ){
      int sameUser = login_is_individual()
                     && fossil_strcmp(pPost->zUser, g.zLogin)==0;
      int isPrivate = content_is_private(fpid);
      @ <p><form action="%R/forumedit" method="POST">
................................................................................
      }
      @ </form></p>
    }
    manifest_destroy(pPost);
    fossil_free(zUuid);
    @ </div>
  }
  for(p=pThread->pFirst; p; p=p->pNext){
    if( p->fpid==target ){
      if( p->pLeaf ) target = p->pLeaf->fpid;
      break;
    }
  }
  forumthread_delete(pThread);
  return target;
}

/*
** WEBPAGE: forumthread
**








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static void forumthread_display_order(
  ForumThread *pThread,
  ForumEntry *p,
  int fpid,
  int nIndent
){
  while( p ){
    if( p->fprev==0 && p->mfirt==fpid ){
      p->nIndent = nIndent;
      forumentry_add_to_display(pThread, p);
      forumthread_display_order(pThread, p->pNext, p->fpid, nIndent+1);
    }
    p = p->pNext;
  }
}
................................................................................
  /* Establish which entries are the latest edit.  After this loop
  ** completes, entries that have non-NULL pLeaf should not be
  ** displayed.
  */
  for(pEntry=pThread->pFirst; pEntry; pEntry=pEntry->pNext){
    if( pEntry->fprev ){
      ForumEntry *pBase, *p;
      p = forumentry_backward(pEntry->pPrev, pEntry->fprev);
      pEntry->pEdit = p;
      while( p ){
        pBase = p;
        p->pLeaf = pEntry;
        p = pBase->pEdit;
      }
      for(p=pEntry->pNext; p; p=p->pNext){
        if( p->mfirt==pEntry->fpid ) p->mfirt = pBase->fpid;
      }
    }
  }

  /* Compute the display order */
  pEntry = pThread->pFirst;
  pEntry->nIndent = 1;
................................................................................
    int fpid = db_column_int(&q, 0);
    int fprev = db_column_int(&q, 1);
    int firt = db_column_int(&q, 2);
    const char *zUuid = db_column_text(&q, 3);
    const char *zDate = db_column_text(&q, 4);
    Manifest *pPost = manifest_get(fpid, CFTYPE_FORUM, 0);
    if( pPost==0 ) continue;
    if( fpid==target ){
      @ <div id="forum%d(fpid)" class="forumTime forumSel">
    }else{
      @ <div id="forum%d(fpid)" class="forumTime">
    }
    if( pPost->zThreadTitle ){
      @ <h1>%h(pPost->zThreadTitle)</h1>
    }
    @ <p>By %h(pPost->zUser) on %h(zDate) (%d(fpid))
    if( fprev ){
      @ edit of %d(fprev)
    }
................................................................................

/*
** Display all messages in a forumthread with indentation.
*/
static int forum_display_hierarchical(int froot, int target){
  ForumThread *pThread;
  ForumEntry *p;
  Manifest *pPost, *pOPost;
  int fpid;
  char *zDate;
  char *zUuid;
  const char *zSel;

  pThread = forumthread_create(froot);
  for(p=pThread->pFirst; p; p=p->pNext){
    if( p->fpid==target ){
      while( p->pEdit ) p = p->pEdit;
      target = p->fpid;
      break;
    }
  }
  for(p=pThread->pDisplay; p; p=p->pDisplay){
    pOPost = manifest_get(p->fpid, CFTYPE_FORUM, 0);
    if( p->pLeaf ){
      fpid = p->pLeaf->fpid;
      pPost = manifest_get(fpid, CFTYPE_FORUM, 0);
    }else{
      fpid = p->fpid;
      pPost = pOPost;
    }
    zSel = p->fpid==target ? " forumSel" : "";
    if( p->nIndent==1 ){
      @ <div id='forum(%d(fpid)' class='forumHierRoot%s(zSel)'>
    }else{
      @ <div id='forum%d(fpid)' class='forumHier%s(zSel)' \
      @ style='margin-left: %d((p->nIndent-1)*3)ex;'>
    }
    pPost = manifest_get(fpid, CFTYPE_FORUM, 0);
    if( pPost==0 ) continue;
    if( pPost->zThreadTitle ){
      @ <h1>%h(pPost->zThreadTitle)</h1>
    }
    zDate = db_text(0, "SELECT datetime(%.17g)", pOPost->rDate);
    @ <p>By %h(pOPost->zUser) on %h(zDate)
    fossil_free(zDate);
    zUuid = rid_to_uuid(p->fpid);
    if( g.perm.Debug ){
      @ <span class="debug">\
      @ <a href="%R/artifact/%h(zUuid)">(%d(p->fpid))</a></span>
    }
    if( p->pLeaf ){
      zDate = db_text(0, "SELECT datetime(%.17g)", pPost->rDate);
      if( fossil_strcmp(pOPost->zUser,pPost->zUser)==0 ){
        @ and edited on %h(zDate)
      }else{
        @ as edited by %h(pPost->zUser) on %h(zDate)
      }
      fossil_free(zDate);
      fossil_free(zUuid);
      zUuid = rid_to_uuid(fpid);
      if( g.perm.Debug ){
        @ <span class="debug">\
        @ <a href="%R/artifact/%h(zUuid)">(%d(fpid))</a></span>
      }
      manifest_destroy(pOPost);
    }
    forum_render(0, pPost->zMimetype, pPost->zWiki, 0);
    if( g.perm.WrForum ){
      int sameUser = login_is_individual()
                     && fossil_strcmp(pPost->zUser, g.zLogin)==0;
      int isPrivate = content_is_private(fpid);
      @ <p><form action="%R/forumedit" method="POST">
................................................................................
      }
      @ </form></p>
    }
    manifest_destroy(pPost);
    fossil_free(zUuid);
    @ </div>
  }






  forumthread_delete(pThread);
  return target;
}

/*
** WEBPAGE: forumthread
**

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