feature #379 multiple format, step 1: add formats

* new table piwigo_image_format (each photo can have 0 to many formats)
* only compatible with synchronization for now. Formats must be in sub-directory pwg_format
* formats are visible on edition page only for now

3 files changed, 21 insertions, 0 deletions

diff --git a/include/config_default.inc.php b/include/config_default.inc.php
index 60a3da323..ec0b58522 100644
--- a/include/config_default.inc.php
+++ b/include/config_default.inc.php
@@ -63,6 +63,10 @@ $conf['file_ext'] = array_merge(
   array('tiff', 'tif', 'mpg','zip','avi','mp3','ogg','pdf')
   );
 
+// format_ext : file extensions for formats, ie additional versions of a
+// photo (or nay other file). Formats are in sub-directory pwg_format.
+$conf['format_ext'] = array('cr2', 'tif', 'tiff', 'nef', 'dng', 'ai');
+
 // top_number : number of element to display for "best rated" and "most
 // visited" categories
 $conf['top_number'] = 15;
diff --git a/include/constants.php b/include/constants.php
index 83d8747bc..ef321a4bc 100644
--- a/include/constants.php
+++ b/include/constants.php
@@ -105,5 +105,7 @@ if (!defined('THEMES_TABLE'))
   define('THEMES_TABLE', $prefixeTable.'themes');
 if (!defined('LANGUAGES_TABLE'))
   define('LANGUAGES_TABLE', $prefixeTable.'languages');
+if (!defined('IMAGE_FORMAT_TABLE'))
+  define('IMAGE_FORMAT_TABLE', $prefixeTable.'image_format');
 
 ?>
diff --git a/include/functions.inc.php b/include/functions.inc.php
index 60a1885e5..e1658c31f 100644
--- a/include/functions.inc.php
+++ b/include/functions.inc.php
@@ -953,6 +953,21 @@ function original_to_representative($path, $representative_ext)
 }
 
 /**
+ * Transforms an original path to its format
+ *
+ * @param string $path
+ * @param string $format_ext
+ * @return string
+ */
+function original_to_format($path, $format_ext)
+{
+  $pos = strrpos($path, '/');
+  $path = substr_replace($path, 'pwg_format/', $pos+1, 0);
+  $pos = strrpos($path, '.');
+  return substr_replace($path, $format_ext, $pos+1);
+}
+
+/**
  * get the full path of an image
  *
  * @param array $element_info element information from db (at least 'path')