14969570320

Committed 12 May 2025 10:11AM CUT coverage: 90.734%. Remained the same

Build # 14969570320

Build Type

Pull #818

github

Committed by

web-flow

Commit Message

Merge 4584b0cfb into f9a52afbd

Pull Request Pull Request #818: Bump dependabot/fetch-metadata from 2.2.0 to 2.4.0

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79.85

/src/bootstrap4/templatetags/bootstrap4.py

from math import floor
from urllib.parse import parse_qs, urlparse, urlunparse

from django import template
from django.contrib.messages import constants as message_constants
from django.template import Context
from django.utils.http import urlencode
from django.utils.safestring import mark_safe

from ..bootstrap import css_url, get_bootstrap_setting, javascript_url, jquery_slim_url, jquery_url, theme_url
from ..components import render_alert
from ..forms import (
    render_button,
    render_field,
    render_field_and_label,
    render_form,
    render_form_errors,
    render_form_group,
    render_formset,
    render_formset_errors,
    render_label,
)
from ..utils import (
    handle_var,
    parse_token_contents,
    render_link_tag,
    render_script_tag,
    render_tag,
    render_template_file,
    url_replace_param,
)

MESSAGE_LEVEL_CLASSES = {
    message_constants.DEBUG: "alert alert-warning",
    message_constants.INFO: "alert alert-info",
    message_constants.SUCCESS: "alert alert-success",
    message_constants.WARNING: "alert alert-warning",
    message_constants.ERROR: "alert alert-danger",
}

register = template.Library()


@register.filter
def bootstrap_setting(value):
    """
    Get a setting.

    A simple way to read bootstrap settings in a template.
    Please consider this filter private for now, do not use it in your own templates.
    """
    return get_bootstrap_setting(value)


@register.filter
def bootstrap_message_classes(message):
    """Return the message classes for a message."""
    extra_tags = None
    try:
        extra_tags = message.extra_tags
    except AttributeError:
        pass
    if not extra_tags:
        extra_tags = ""
    classes = [extra_tags]
    try:
        level = message.level
    except AttributeError:
        pass
    else:
        try:
            classes.append(MESSAGE_LEVEL_CLASSES[level])
        except KeyError:
            classes.append("alert alert-danger")
    return " ".join(classes).strip()


@register.simple_tag
def bootstrap_jquery_url():
    """
    Return url to full version of jQuery.

    **Tag name**::

        bootstrap_jquery_url

    Return the full url to jQuery plugin to use

    Default value: ``https://code.jquery.com/jquery-3.2.1.min.js``

    This value is configurable, see Settings section

    **Usage**::

        {% bootstrap_jquery_url %}

    **Example**::

        {% bootstrap_jquery_url %}
    """
    return jquery_url()


@register.simple_tag
def bootstrap_jquery_slim_url():
    """
    Return url to slim version of jQuery.

    **Tag name**::

        bootstrap_jquery_slim_url

    Return the full url to slim jQuery plugin to use

    Default value: ``https://code.jquery.com/jquery-3.2.1.slim.min.js``

    This value is configurable, see Settings section

    **Usage**::

        {% bootstrap_jquery_slim_url %}

    **Example**::

        {% bootstrap_jquery_slim_url %}
    """
    return jquery_slim_url()


@register.simple_tag
def bootstrap_javascript_url():
    """
    Return the full url to the Bootstrap JavaScript library.

    Default value: ``None``

    This value is configurable, see Settings section

    **Tag name**::

        bootstrap_javascript_url

    **Usage**::

        {% bootstrap_javascript_url %}

    **Example**::

        {% bootstrap_javascript_url %}
    """
    return javascript_url()


@register.simple_tag
def bootstrap_css_url():
    """
    Return the full url to the Bootstrap CSS library.

    Default value: ``None``

    This value is configurable, see Settings section

    **Tag name**::

        bootstrap_css_url

    **Usage**::

        {% bootstrap_css_url %}

    **Example**::

        {% bootstrap_css_url %}
    """
    return css_url()


@register.simple_tag
def bootstrap_theme_url():
    """
    Return the full url to a Bootstrap theme CSS library.

    Default value: ``None``

    This value is configurable, see Settings section

    **Tag name**::

        bootstrap_theme_url

    **Usage**::

        {% bootstrap_theme_url %}

    **Example**::

        {% bootstrap_theme_url %}
    """
    return theme_url()


@register.simple_tag
def bootstrap_css():
    """
    Return HTML for Bootstrap CSS. If no CSS url is available, return empty string.

    Default value: ``None``

    This value is configurable, see Settings section

    **Tag name**::

        bootstrap_css

    **Usage**::

        {% bootstrap_css %}

    **Example**::

        {% bootstrap_css %}
    """
    rendered_urls = []
    if bootstrap_css_url():
        rendered_urls.append(render_link_tag(bootstrap_css_url()))
    if bootstrap_theme_url():
        rendered_urls.append(render_link_tag(bootstrap_theme_url()))
    return mark_safe("".join([url for url in rendered_urls]))


@register.simple_tag
def bootstrap_jquery(jquery=True):
    """
    Return HTML for jQuery tag.

    Adjust the url dict in settings.
    If no url is returned, we don't want this statement to return any HTML. This is intended behavior.

    This value is configurable, see Settings section. Note that any value that evaluates to True and is
    not "slim" will be interpreted as True.

    **Tag name**::

        bootstrap_jquery

    **Parameters**::

        :jquery: False|"slim"|True (default=True)

    **Usage**::

        {% bootstrap_jquery %}

    **Example**::

        {% bootstrap_jquery jquery='slim' %}
    """
    if not jquery:
        return ""
    elif jquery == "slim":
        jquery = get_bootstrap_setting("jquery_slim_url")
    else:
        jquery = get_bootstrap_setting("jquery_url")

    if isinstance(jquery, str):
        jquery = dict(src=jquery)
    else:
        jquery = jquery.copy()
        jquery.setdefault("src", jquery.pop("url", None))

    return render_tag("script", attrs=jquery)


@register.simple_tag
def bootstrap_javascript(jquery=False):
    """
    Return HTML for Bootstrap JavaScript.

    Adjust url in settings.
    If no url is returned, we don't want this statement to return any HTML. This is intended behavior.

    Default value: False

    This value is configurable, see Settings section. Note that any value that evaluates to True and is
    not "slim" will be interpreted as True.

    **Tag name**::

        bootstrap_javascript

    **Parameters**::

        :jquery: False|"slim"|True (default=False)

    **Usage**::

        {% bootstrap_javascript %}

    **Example**::

        {% bootstrap_javascript jquery="slim" %}
    """
    # List of JS tags to include
    javascript_tags = []

    # Get jquery value from setting or leave default.
    jquery = jquery or get_bootstrap_setting("include_jquery", False)

    # Include jQuery if the option is passed
    if jquery:
        javascript_tags.append(bootstrap_jquery(jquery=jquery))

    # Bootstrap 4 JavaScript
    bootstrap_js_url = bootstrap_javascript_url()
    if bootstrap_js_url:
        javascript_tags.append(render_script_tag(bootstrap_js_url))

    # Join and return
    return mark_safe("\n".join(javascript_tags))


@register.simple_tag
def bootstrap_formset(*args, **kwargs):
    """
    Render a formset.

    **Tag name**::

        bootstrap_formset

    **Parameters**::

        formset
            The formset that is being rendered


        See bootstrap_field_ for other arguments

    **Usage**::

        {% bootstrap_formset formset %}

    **Example**::

        {% bootstrap_formset formset layout='horizontal' %}
    """
    return render_formset(*args, **kwargs)


@register.simple_tag
def bootstrap_formset_errors(*args, **kwargs):
    """
    Render formset errors.

    **Tag name**::

        bootstrap_formset_errors

    **Parameters**::

        formset
            The formset that is being rendered

        layout
            Context value that is available in the template ``bootstrap4/form_errors.html`` as ``layout``.

    **Usage**::

        {% bootstrap_formset_errors formset %}

    **Example**::

        {% bootstrap_formset_errors formset layout='inline' %}
    """
    return render_formset_errors(*args, **kwargs)


@register.simple_tag
def bootstrap_form(*args, **kwargs):
    """
    Render a form.

    **Tag name**::

        bootstrap_form

    **Parameters**::

        form
            The form that is to be rendered

        exclude
            A list of field names (comma separated) that should not be rendered
            E.g. exclude=subject,bcc

        alert_error_type
            Control which type of errors should be rendered in global form alert.

                One of the following values:

                    * ``'all'``
                    * ``'fields'``
                    * ``'non_fields'``

                :default: ``'non_fields'``

        See bootstrap_field_ for other arguments

    **Usage**::

        {% bootstrap_form form %}

    **Example**::

        {% bootstrap_form form layout='inline' %}
    """
    return render_form(*args, **kwargs)


@register.simple_tag
def bootstrap_form_errors(*args, **kwargs):
    """
    Render form errors.

    **Tag name**::

        bootstrap_form_errors

    **Parameters**::

        form
            The form that is to be rendered

        type
            Control which type of errors should be rendered.

            One of the following values:

                * ``'all'``
                * ``'fields'``
                * ``'non_fields'``

            :default: ``'all'``

        layout
            Context value that is available in the template ``bootstrap4/form_errors.html`` as ``layout``.

    **Usage**::

        {% bootstrap_form_errors form %}

    **Example**::

        {% bootstrap_form_errors form layout='inline' %}
    """
    return render_form_errors(*args, **kwargs)


@register.simple_tag
def bootstrap_field(*args, **kwargs):
    """
    Render a field.

    **Tag name**::

        bootstrap_field

    **Parameters**::


        field
            The form field to be rendered

        layout
            If set to ``'horizontal'`` then the field and label will be rendered side-by-side, as long as there
            is no ``field_class`` set as well.

        form_group_class
            CSS class of the ``div`` that wraps the field and label.

            :default: ``'form-group'``

        field_class
            CSS class of the ``div`` that wraps the field.

        label_class
            CSS class of the ``label`` element. Will always have ``control-label`` as the last CSS class.

        form_check_class
            CSS class of the ``div`` element wrapping the label and input when rendering checkboxes and radio buttons.

        show_help
            Show the field's help text, if the field has help text.

            :default: ``True``

        show_label
            Whether the show the label of the field.

                * ``True``
                * ``False``/``'sr-only'``
                * ``'skip'``

            :default: ``True``

        exclude
            A list of field names that should not be rendered

        size
            Controls the size of the rendered ``div.form-group`` through the use of CSS classes.

            One of the following values:

                * ``'small'``
                * ``'medium'``
                * ``'large'``

        placeholder
            Sets the placeholder text of a textbox

        horizontal_label_class
            Class used on the label when the ``layout`` is set to ``horizontal``.

            :default: ``'col-md-3'``. Can be changed in :doc:`settings`

        horizontal_field_class
            Class used on the field when the ``layout`` is set to ``horizontal``.

            :default: ``'col-md-9'``. Can be changed in :doc:`settings`

        addon_before
            Text that should be prepended to the form field. Can also be an icon, e.g.
            ``'<span class="glyphicon glyphicon-calendar"></span>'``

            See the `Bootstrap docs <http://getbootstrap.com/components/#input-groups-basic>` for more examples.

        addon_after
            Text that should be appended to the form field. Can also be an icon, e.g.
            ``'<span class="glyphicon glyphicon-calendar"></span>'``

            See the `Bootstrap docs <http://getbootstrap.com/components/#input-groups-basic>` for more examples.

        addon_before_class
            Class used on the span when ``addon_before`` is used.

            One of the following values:

                * ``'input-group-text'``
                * ``None``

            Set to None to disable the span inside the addon. (for use with buttons)

            :default: ``input-group-text``

        addon_after_class
            Class used on the span when ``addon_after`` is used.

            One of the following values:

                * ``'input-group-text'``
                * ``None``

            Set to None to disable the span inside the addon. (for use with buttons)

            :default: ``input-group-text``

        error_css_class
            CSS class used when the field has an error

            :default: ``'has-error'``. Can be changed :doc:`settings`

        required_css_class
            CSS class used on the ``div.form-group`` to indicate a field is required

            :default: ``''``. Can be changed :doc:`settings`

        bound_css_class
            CSS class used when the field is bound

            :default: ``'has-success'``. Can be changed :doc:`settings`

    **Usage**::

        {% bootstrap_field field %}

    **Example**::

        {% bootstrap_field field show_label=False %}
    """
    return render_field(*args, **kwargs)


@register.simple_tag()
def bootstrap_label(*args, **kwargs):
    """
    Render a label.

    **Tag name**::

        bootstrap_label

    **Parameters**::

        content
            The label's text

        label_for
            The value that will be in the ``for`` attribute of the rendered ``<label>``

        label_class
            The CSS class for the rendered ``<label>``

        label_title
            The value that will be in the ``title`` attribute of the rendered ``<label>``

    **Usage**::

        {% bootstrap_label content %}

    **Example**::

        {% bootstrap_label "Email address" label_for="exampleInputEmail1" %}
    """
    return render_label(*args, **kwargs)


@register.simple_tag
def bootstrap_button(*args, **kwargs):
    """
    Render a button.

    **Tag name**::

        bootstrap_button

    **Parameters**::

        content
            The text to be displayed in the button

        button_type
            Optional field defining what type of button this is.

            Accepts one of the following values:

                * ``'submit'``
                * ``'reset'``
                * ``'button'``
                * ``'link'``

        button_class
            The class of button to use. If none is given, btn-primary will be used.

        extra_classes
            Any extra CSS classes that should be added to the button.

        size
            Optional field to control the size of the button.

            Accepts one of the following values:

                * ``'xs'``
                * ``'sm'``
                * ``'small'``
                * ``'md'``
                * ``'medium'``
                * ``'lg'``
                * ``'large'``


        href
            Render the button as an ``<a>`` element. The ``href`` attribute is set with this value.
            If a ``button_type`` other than ``link`` is defined, specifying a ``href`` will throw a
            ``ValueError`` exception.

        name
            Value of the ``name`` attribute of the rendered element.

        value
            Value of the ``value`` attribute of the rendered element.

    **Usage**::

        {% bootstrap_button content %}

    **Example**::

        {% bootstrap_button "Save" button_type="submit" button_class="btn-primary" %}
    """
    return render_button(*args, **kwargs)


@register.simple_tag
def bootstrap_alert(content, alert_type="info", dismissible=True):
    """
    Render an alert.

    **Tag name**::

        bootstrap_alert

    **Parameters**::

        content
            HTML content of alert

        alert_type
            * ``'info'``
            * ``'warning'``
            * ``'danger'``
            * ``'success'``

            :default: ``'info'``

        dismissible
            boolean, is alert dismissible

            :default: ``True``

    **Usage**::

        {% bootstrap_alert content %}

    **Example**::

        {% bootstrap_alert "Something went wrong" alert_type='danger' %}
    """
    return render_alert(content, alert_type, dismissible)


@register.tag("buttons")
def bootstrap_buttons(parser, token):
    """
    Render buttons for form.

    **Tag name**::

        buttons

    **Parameters**::

        submit
            Text for a submit button

        reset
            Text for a reset button

    **Usage**::

        {% buttons %}{% endbuttons %}

    **Example**::

        {% buttons submit='OK' reset="Cancel" %}{% endbuttons %}
    """
    kwargs = parse_token_contents(parser, token)
    kwargs["nodelist"] = parser.parse(("endbuttons",))
    parser.delete_first_token()
    return ButtonsNode(**kwargs)


class ButtonsNode(template.Node):
    def __init__(self, nodelist, args, kwargs, asvar, **kwargs2):
        self.nodelist = nodelist
        self.args = args
        self.kwargs = kwargs
        self.asvar = asvar

    def render(self, context):
        output_kwargs = {}
        for key in self.kwargs:
            output_kwargs[key] = handle_var(self.kwargs[key], context)
        buttons = []
        submit = output_kwargs.get("submit", None)
        reset = output_kwargs.get("reset", None)
        if submit:
            buttons.append(bootstrap_button(submit, "submit"))
        if reset:
            buttons.append(bootstrap_button(reset, "reset"))
        buttons = " ".join(buttons) + self.nodelist.render(context)
        output_kwargs.update({"label": None, "field": buttons})
        css_class = output_kwargs.pop("form_group_class", "form-group")
        output = render_form_group(render_field_and_label(**output_kwargs), css_class=css_class)
        if self.asvar:
            context[self.asvar] = output
            return ""
        else:
            return output


@register.simple_tag(takes_context=True)
def bootstrap_messages(context, *args, **kwargs):
    """
    Show django.contrib.messages Messages in Bootstrap alert containers.

    In order to make the alerts dismissible (with the close button),
    we have to set the jquery parameter too when using the
    bootstrap_javascript tag.

    Uses the template ``bootstrap4/messages.html``.

    **Tag name**::

        bootstrap_messages

    **Parameters**::

        None.

    **Usage**::

        {% bootstrap_messages %}

    **Example**::

        {% bootstrap_javascript jquery=True %}
        {% bootstrap_messages %}
    """
    # Force Context to dict
    if isinstance(context, Context):
        context = context.flatten()
    context.update({"message_constants": message_constants})
    return render_template_file("bootstrap4/messages.html", context=context)


@register.inclusion_tag("bootstrap4/pagination.html")
def bootstrap_pagination(page, **kwargs):
    """
    Render pagination for a page.

    **Tag name**::

        bootstrap_pagination

    **Parameters**::

        page
            The page of results to show.

        pages_to_show
            Number of pages in total

            :default: ``11``

        url
            URL to navigate to for pagination forward and pagination back.

            :default: ``None``

        size
            Controls the size of the pagination through CSS. Defaults to being normal sized.

            One of the following:

                * ``'small'``
                * ``'large'``

            :default: ``None``

        extra
            Any extra page parameters.

            :default: ``None``

        parameter_name
            Name of the paging URL parameter.

            :default: ``'page'``

    **Usage**::

        {% bootstrap_pagination page %}

    **Example**::

        {% bootstrap_pagination lines url="/pagination?page=1" size="large" %}

    **Tip**::

      If you want to repeat the query string arguments in subsequent pagination links,
      use the "extra" parameter with "request.GET.urlencode":

        {% bootstrap_pagination page_obj extra=request.GET.urlencode %}
    """
    pagination_kwargs = kwargs.copy()
    pagination_kwargs["page"] = page
    return get_pagination_context(**pagination_kwargs)


@register.simple_tag
def bootstrap_url_replace_param(url, name, value):
    return url_replace_param(url, name, value)


def get_pagination_context(
    page, pages_to_show=11, url=None, size=None, justify_content=None, extra=None, parameter_name="page"
):
    """Generate Bootstrap pagination context from a page object."""
    pages_to_show = int(pages_to_show)
    if pages_to_show < 1:
        raise ValueError(f"Pagination pages_to_show should be a positive integer, you specified {pages_to_show}.")
    num_pages = page.paginator.num_pages
    current_page = page.number
    half_page_num = int(floor(pages_to_show / 2))
    if half_page_num < 0:
        half_page_num = 0
    first_page = current_page - half_page_num
    if first_page <= 1:
        first_page = 1
    if first_page > 1:
        pages_back = first_page - half_page_num
        if pages_back < 1:
            pages_back = 1
    else:
        pages_back = None
    last_page = first_page + pages_to_show - 1
    if pages_back is None:
        last_page += 1
    if last_page > num_pages:
        last_page = num_pages
    if last_page < num_pages:
        pages_forward = last_page + half_page_num
        if pages_forward > num_pages:
            pages_forward = num_pages
    else:
        pages_forward = None
        if first_page > 1:
            first_page -= 1
        if pages_back is not None and pages_back > 1:
            pages_back -= 1
        else:
            pages_back = None
    pages_shown = []
    for i in range(first_page, last_page + 1):
        pages_shown.append(i)

    # parse the url
    parts = urlparse(url or "")
    params = parse_qs(parts.query)

    # append extra querystring parameters to the url.
    if extra:
        params.update(parse_qs(extra))

    # build url again.
    url = urlunparse(
        [parts.scheme, parts.netloc, parts.path, parts.params, urlencode(params, doseq=True), parts.fragment]
    )

    # Set CSS classes, see http://getbootstrap.com/components/#pagination
    pagination_css_classes = ["pagination"]
    if size == "small":
        pagination_css_classes.append("pagination-sm")
    elif size == "large":
        pagination_css_classes.append("pagination-lg")

    if justify_content == "start":
        pagination_css_classes.append("justify-content-start")
    elif justify_content == "center":
        pagination_css_classes.append("justify-content-center")
    elif justify_content == "end":
        pagination_css_classes.append("justify-content-end")

    return {
        "bootstrap_pagination_url": url,
        "num_pages": num_pages,
        "current_page": current_page,
        "first_page": first_page,
        "last_page": last_page,
        "pages_shown": pages_shown,
        "pages_back": pages_back,
        "pages_forward": pages_forward,
        "pagination_css_classes": " ".join(pagination_css_classes),
        "parameter_name": parameter_name,
    }

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