Source code for richy.core.context_processors

import logging

from django.conf import settings as stngs

from .forms import SearchForm
from .models import Item, Meta

logger = logging.getLogger(__name__)




def meta(request):
    """
    Adds meta (Meta model) info to the context.

    - last_price_update
    """
    try:
        last_price_update = Meta.objects.get(type=Meta.LAST_PRICE_UPDATE)
    except Meta.DoesNotExist:
        last_price_update = None

    return {
        "meta": {
            "last_price_update": last_price_update.value if last_price_update else "",
        }
    }





def settings(request):
    """
    Adds Django settings directives to the context:

    - CHART_COLORS
    - VERSION
    - MAX_PRECISION
    - COINS_MAX_PRECISION
    """

    return {
        "settings": {
            "CHART_COLORS": stngs.CHART_COLORS,
            "VERSION": stngs.VERSION,
            "MAX_PRECISION": stngs.MAX_PRECISION,
            "COINS_MAX_PRECISION": stngs.COINS_MAX_PRECISION,
        }
    }





def search_form(request):
    """
    Adds search form (SearchForm) blank instance to the context.

    """
    return {"search_form": SearchForm()}



# TODO: cache this and invalidate once a item is added/removed


def all_symbols(request):
    """
    Adds list of all symbols (all_symbols) to the context.
    """

    return {"all_symbols": Item.objects.values_list("symbol", flat=True)}