83 lines
2.4 KiB
Python
83 lines
2.4 KiB
Python
import datetime
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import lxml.html
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import requests
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from peewee import *
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from playhouse.shortcuts import model_to_dict
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import config
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from database import BaseModel
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from plugins.plugin import Plugin
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class Robor(BaseModel):
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date = DateField(index=True, default=datetime.date.today(), null=False)
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field = TextField(null=False)
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value = FloatField(null=False)
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class RoborPlugin(Plugin):
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models = [Robor]
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def __init__(self):
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self.__table = None
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def get_interval(self):
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return config.ROBOR_INTERVAL
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def get_column_index(self, table, column_name):
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header_row = table.find('tr')
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for elem in header_row.iter('th'):
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if column_name in elem.text_content():
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return header_row.index(elem)
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return None
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def values_newer_than(self, table, oldest_date: datetime.date, col_date, col_value):
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# Items are ordered descending, so stop when we reach date
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for row in table.iter('tr'):
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dt_str = row[col_date].text_content()
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val_str = row[col_value].text_content()
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try:
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dt = datetime.datetime.strptime(dt_str, '%d/%b/%Y')
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val = float(val_str)
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except ValueError:
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continue
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dt = dt.date()
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if (oldest_date is not None) and (dt <= oldest_date):
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break
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yield (dt, val)
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def execute(self):
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# Get last existing date
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latest_date = Robor.select(Robor.date) \
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.order_by(Robor.date.desc()) \
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.limit(1) \
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.scalar()
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# Fetch & parse data
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response = requests.get('https://www.bnro.ro/StatisticsReportHTML.aspx?icid=801&table=642', verify=False)
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response.raise_for_status()
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html = lxml.html.fromstring(response.text)
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# Read data from table
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table = html.find('.//table[@class="stat_table"]')
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for field in config.ROBOR_FIELDS:
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col_date = self.get_column_index(table, 'Date')
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col_value = self.get_column_index(table, field)
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for date, value in self.values_newer_than(table, latest_date, col_date, col_value):
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entry = Robor()
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entry.date = date
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entry.field = field
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entry.value = value
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entry.save()
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