st_pydantic.ui_renderer.md

module st_pydantic.ui_renderer

---

function pydantic_input

pydantic_input(
    key: str,
    model: Type[BaseModel],
    group_optional_fields: GroupOptionalFieldsStrategy = 'no',
    lowercase_labels: bool = False,
    ignore_empty_values: bool = False
) → Dict

Auto-generates input UI elements for a selected Pydantic class.

Args:

• key (str): A string that identifies the form. Each form must have its own key.
• model (Type[BaseModel]): The input model. Either a class or instance based on Pydantic BaseModel or Python dataclass.
• group_optional_fields (str, optional): If sidebar, optional input elements will be rendered on the sidebar. If expander, optional input elements will be rendered inside an expander element. Defaults to no.
• lowercase_labels (bool): If True, all input element labels will be lowercased. Defaults to False.
• ignore_empty_values (bool): If True, empty values for strings and numbers will not be stored in the session state. Defaults to False.

Returns:

• Dict: A dictionary with the current state of the input data.

---

function pydantic_output

pydantic_output(output_data: Any) → None

Auto-generates output UI elements for all properties of a (Pydantic-based) model instance.

Args:

• output_data (Any): The output data.

---

function pydantic_form

pydantic_form(
    key: str,
    model: Type[~T],
    submit_label: str = 'Submit',
    clear_on_submit: bool = False,
    group_optional_fields: GroupOptionalFieldsStrategy = 'no',
    lowercase_labels: bool = False,
    ignore_empty_values: bool = False
) → Optional[~T]

Auto-generates a Streamlit form based on the given (Pydantic-based) input class.

Args:

• key (str): A string that identifies the form. Each form must have its own key.
• model (Type[BaseModel]): The input model. Either a class or instance based on Pydantic BaseModel or Python dataclass.
• submit_label (str): A short label explaining to the user what this button is for. Defaults to “Submit”.
• clear_on_submit (bool): If True, all widgets inside the form will be reset to their default values after the user presses the Submit button. Defaults to False.
• group_optional_fields (str, optional): If sidebar, optional input elements will be rendered on the sidebar. If expander, optional input elements will be rendered inside an expander element. Defaults to no.
• lowercase_labels (bool): If True, all input element labels will be lowercased. Defaults to False.
• ignore_empty_values (bool): If True, empty values for strings and numbers will not be stored in the session state. Defaults to False.

Returns:

• Optional[BaseModel]: An instance of the given input class, if the submit button is used and the input data passes the Pydantic validation.

---

class GroupOptionalFieldsStrategy

An enumeration.

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