Fix web-ui (#3997)

Co-authored-by: tastelikefeet <[email protected]>

Author: tastelikefeet

examples/train/embedding/train_gte.sh

@@ -11,7 +11,7 @@ swift sft \
     --train_type lora \
     --dataset 'sentence-transformers/stsb' \
     --torch_dtype bfloat16 \
-    --num_train_epochs 10 \
+    --num_train_epochs 1 \
     --per_device_train_batch_size 2 \
     --per_device_eval_batch_size 1 \
     --gradient_accumulation_steps $(expr 64 / $nproc_per_node) \

swift/ui/base.py

@@ -32,6 +32,7 @@ def wrapper(*args, **kwargs):
         if builder is not None:
             choices = base_builder.choice(elem_id)
             if choices:
+                choices = [str(choice) if choice is not None else None for choice in choices]
                 kwargs['choices'] = choices
 
         if not isinstance(self, (Tab, TabItem, Accordion)) and 'interactive' not in kwargs:  # noqa
@@ -259,10 +260,15 @@ def set_lang(cls, lang):
     def get_choices_from_dataclass(dataclass):
         choice_dict = {}
         for f in fields(dataclass):
+            default_value = f.default
+            if 'MISSING_TYPE' in str(default_value):
+                default_value = None
             if 'choices' in f.metadata:
-                choice_dict[f.name] = f.metadata['choices']
+                choice_dict[f.name] = list(f.metadata['choices'])
             if 'Literal' in str(f.type) and typing.get_args(f.type):
-                choice_dict[f.name] = typing.get_args(f.type)
+                choice_dict[f.name] = list(typing.get_args(f.type))
+            if f.name in choice_dict and default_value not in choice_dict[f.name]:
+                choice_dict[f.name].insert(0, default_value)
         return choice_dict
 
     @staticmethod

swift/ui/llm_export/llm_export.py

@@ -188,4 +188,4 @@ def export_model(cls, *args):
         run_command, export_args, log_file = cls.export(*args)
         os.system(run_command)
         time.sleep(2)
-        return gr.update(open=True), ExportRuntime.refresh_tasks(log_file), [None]
+        return gr.update(open=True), ExportRuntime.refresh_tasks(log_file)