release 2.51 datetime

modified:   README.md
    	modified:   save_image_extended.py
	modified:   README.md
	modified:   save_image_extended.py

README.md

@@ -89,6 +89,9 @@ Converts [unix datetime formats](https://www.man7.org/linux/man-pages/man1/date.
 | %F %H-%M-%S | 2024-05-22 09-13-58 | |
 | %Y/%V | 2024/21 | year subfolder / ISO week number subfolder |
 
+<p align="center">
+ <img src="assets/save-image-extended-comfyui-example-2.png" />
+</p>
 
 #
 Disclaimer: Does not check for illegal characters entered in file or folder names. May not be compatible with every other custom node, depending on changes in the `prompt` object. 
@@ -154,6 +157,9 @@ TODO:
 - [ ] offer to place the counter anywhere, as a key in filename_keys
 - [ ] files can get out of order if prefixes change... that is expected, but is this what we want? another reason to have the counter place anywhere we want
 
+### release 2.51 💾
+- added unix datetime formats
+
 ### release 2.50 💾
 - added JXL support
 - added 'BOOLEAN' support

save_image_extended.py

@@ -233,7 +233,11 @@ class SaveImageExtended:
   # Roman Numerals              'ↁ'       False       False     True
   # --------------------------- --------- ----------- --------- -----------
   def generate_custom_name(self, keys_to_extract, prefix, delimiter, prompt, timestamp=datetime.now()):
-    custom_name = prefix
+    if '%' in prefix:
+      custom_name = timestamp.strftime(prefix)
+    else:
+      custom_name = prefix
+    
     if prompt is not None and keys_to_extract != ['']:
       found_values = {}
       # print(f"debug generate_custom_name: --prefix: {prefix}")
@@ -248,6 +252,8 @@ class SaveImageExtended:
       #   'inputs': {'cfg': 1.6, 
       #     'denoise': 1.0, ...
       for key in keys_to_extract:
+        if not key: continue
+        
         value = None
         node, nodeKey = None, None