create thumbnails of all pictures at once, at limit option (-l) if we want to only...

[photo-tags.git] / getjson.php

diff --git a/getjson.php b/getjson.php
index b220544468463127448c8b020ed882970f0e1941..3e4cf4d4e9470245a2997c030c200ca27e8e9eb8 100644 (file)
--- a/getjson.php
+++ b/getjson.php
@@ -9,40 +9,159 @@ $usePDO=$iniarray["usePDO"];
 $N=$iniarray["pics_per_page"];
 /* end parse ini-file */
 
-if (isset($_REQUEST["P"]))
-  $OFFSET = "".($_REQUEST["P"]*$N-$N).",";
-else
-  $OFFSET = "";
-
 if($usePDO)
   $DB = new PDO("sqlite:$DBFILE");
 else
   $DB = new SQlite3($DBFILE);
 
-$result = $DB->query("SELECT * FROM photos LIMIT $OFFSET $N");
 
-$row = array();
+/* do database query */
+if (isset($_REQUEST["S"]))
+  {
+    /* single tag or part of tag */
+    $tag = sqlite_escape_string($_REQUEST["S"]);
+
+    $result = $DB->query("SELECT name FROM tags");
+  }
+ else if (isset($_REQUEST["NP"]))
+  {
+    /* get +- 5 pics from ordered list to show next to a large image */
+
+    /* first create a temp table with all images and then use rowid to get +-5 images */
+
+    if (isset($_REQUEST["T"]))
+      {
+       /* single tag or part of tag */
+       $tags = $_REQUEST["T"];
+       $tags = explode(",",$tags);
+       $nrtags = count($tags);
+
+       foreach ($tags as $key => $value)
+         $tags[$key]=sqlite_escape_string(trim($value));
+       $tags = "'".implode("','",$tags)."'";
+
+       $DB->query("CREATE TEMP TABLE NEXTPREV AS SELECT base_uri, filename, p.id as id  FROM photo_tags pt, photos p, tags t".
+                  " WHERE pt.tag_id = t.id".
+                  " AND (t.name COLLATE NOCASE IN ($tags))".
+                  " AND p.id = pt.photo_id ".
+                  " GROUP BY p.id HAVING COUNT( p.id )=$nrtags");
+      }
+    else
+      {
+       $DB->query("CREATE TEMP TABLE NEXTPREV AS SELECT base_uri, filename, p.id as id FROM  photos p");
+      };
+
+    if (isset($_REQUEST["ID"]))
+      {
+       $ID=intval($_REQUEST["ID"]);
+       $result = $DB->query("SELECT * FROM NEXTPREV".
+                            " WHERE rowid > (select rowid from NEXTPREV where id=$ID) -5".
+                            "   AND rowid < (select rowid from NEXTPREV where id=$ID) +5");
+      }
+    else
+      {
+       $result = $DB->query("SELECT 1 where 1=2");
+      }
+
+  }
+ else if (isset($_REQUEST["ID"]) && !isset($_REQUEST["C"]))
+  {
+    $id  = intval($_REQUEST["ID"]);
+    $result = $DB->query("SELECT base_uri, filename, id FROM photos".
+                        " WHERE id=$id");
+  }
+ else if (isset($_REQUEST["CLOUD"]))
+  {
+    $result = $DB->query("SELECT t.name as name, count(*) as count FROM photo_tags pt ".
+                        " LEFT JOIN tags t on t.id=pt.tag_id".
+                        " GROUP BY t.id");
+  }
+ else
+  {
+    if (isset($_REQUEST["P"]))
+      $OFFSET = "".(intval($_REQUEST["P"])*$N-$N);
+    else
+      $OFFSET = "0";
+
+    if (isset($_REQUEST["T"]))
+      {
+       /* single tag or part of tag */
+       $tags = $_REQUEST["T"];
+       $tags = explode(",",$tags);
+       $nrtags = count($tags);
+
+       foreach ($tags as $key => $value)
+         $tags[$key]=sqlite_escape_string(trim($value));
+       $tags = "'".implode("','",$tags)."'";
+
+       /* individual tags are seperated by ',' */
+
+       /* use and AND query between tags as a default
+        a good explanation on different ways of doing this can be found at:
+        http://www.pui.ch/phred/archives/2005/04/tags-database-schemas.html
+       */
+
+       if (isset($_REQUEST["C"]))
+         {
+           $DB->query("CREATE TEMP TABLE TEMPPICS AS SELECT p.id as id FROM photo_tags pt, photos p, tags t".
+                      " WHERE pt.tag_id = t.id".
+                      " AND (t.name COLLATE NOCASE IN ($tags))".
+                      " AND p.id = pt.photo_id ".
+                      " GROUP BY p.id HAVING COUNT( p.id )=$nrtags");
+
+           if (isset($_REQUEST["ID"]))
+             {
+               $ID = $_REQUEST["ID"];
+               $result = $DB->query("SELECT count(*) as total, (SELECT rowid from TEMPPICS WHERE id = $ID) as row from TEMPPICS");
+             }
+           else
+             $result = $DB->query("SELECT count(*) as total, -1 as row from TEMPPICS");
+         }
+       else
+         {
+           $result = $DB->query("SELECT base_uri, filename, p.id as id  FROM photo_tags pt, photos p, tags t".
+                                " WHERE pt.tag_id = t.id".
+                                " AND (t.name COLLATE NOCASE IN ($tags))".
+                                " AND p.id = pt.photo_id ".
+                                " GROUP BY p.id HAVING COUNT( p.id )=$nrtags".
+                                "    LIMIT $OFFSET, $N");
+         }
+      }
+    else
+      {
+       if (isset($_REQUEST["C"]))
+         {
+           $DB->query("CREATE TEMP TABLE TEMPPICS AS SELECT id from photos");
 
-$i = 0;
+           if (isset($_REQUEST["ID"]))
+             {
+               $ID = $_REQUEST["ID"];
+               $result = $DB->query("SELECT count(*) as total, (SELECT rowid FROM TEMPPICS WHERE id=$ID) as row FROM TEMPPICS");
+             }
+           else
+             $result = $DB->query("SELECT count(*) as total, -1 as row FROM TEMPPICS");
+         }
+       else
+         $result = $DB->query("SELECT * FROM photos LIMIT $OFFSET, $N");
+      }
+  }
 
+/* encode result as an array */
+$tmp=array();
 if(!$usePDO)
   {
     /* convert results into array */
-    $tmp=array();
-    while($res = $result->fetchArray(SQLITE3_ASSOC)){
+    while($res = $result->fetchArray(SQLITE3_ASSOC))
       $tmp[]=$res;
-    }
-    $result=$tmp;
   }
+else
+  {
+    foreach($result as $res)
+      $tmp[]=$res;
+  }
+$result=$tmp;
 
-foreach ($result as $res)
-{
-  $row[$i] = $res;
-  $i++;
-}
-
-
-echo json_encode($row);
+echo json_encode($result);
 
 /* close the database */
 if($usePDO)
@@ -50,5 +169,6 @@ if($usePDO)
 else
   $DB->close();
 
+
 ?>