accountant/api/controller/entries.py

"""
    This file is part of Accountant.

    Accountant is free software: you can redistribute it and/or modify
    it under the terms of the GNU Affero General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    Foobar is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU Affero General Public License for more details.

    You should have received a copy of the GNU Affero General Public License
    along with Accountant.  If not, see <http://www.gnu.org/licenses/>.
"""
from app import app
from app import db

from api.model.entries import Entry
from api.model.operations import Operation
from api.model.scheduled_operations import ScheduledOperation

from sqlalchemy import func, desc
from sqlalchemy.ext.hybrid import hybrid_property, hybrid_method
from sqlalchemy.orm import sessionmaker, column_property, aliased
from sqlalchemy.sql import func, select, case

#from sqlalchemy import *

from flask import json, request

@app.route("/api/entries/<account_id>/<year>/<month>")
def get_entries(account_id, year, month):
    """
    Return entries for an account, year, and month.
    """
    session = db.session

    base_query = session.query(
        Operation,
        case(whens={Operation.canceled: None}, else_=func.sum(Operation.value).over(partition_by="canceled", order_by="operation_date, value desc, label desc")).label("sold")
    ).filter(Operation.account_id == account_id).order_by(
        desc(Operation.operation_date),
        Operation.value,
        Operation.label,
    ).subquery()

    query = session.query(base_query).select_from(base_query).filter(func.date_trunc('month', base_query.c.operation_date) == "%s-%s-01" % (year, month))

    return json.dumps([{
         "id": i.id,
         "pointed": i.pointed,
         "operation_date": i.operation_date.strftime("%Y-%m-%d"),
         "label": i.label,
         "value": str(i.value),
         "category": i.category,
         "sold": str(i.sold) if not i.canceled else None,
         "account_id": i.account_id,
         "canceled": i.canceled,
         "scheduled_operation_id": i.scheduled_operation_id
    } for i in query.all()])

@app.route("/api/entries", methods=["PUT"])
def add_entry():
    session = db.session

    try:
        entry = Entry(
          operation_date = request.json['operation_date'],
          pointed = request.json['pointed'],
          label = request.json['label'],
          value = request.json['value'],
          category = request.json['category'],
          account_id = request.json['account_id'],
          scheduled_operation_id = request.json['scheduled_operation_id']
        )
    
        session.add(entry)
        session.commit()
    
        return json.dumps("Entry added.")
    except:
        session.rollback()
        raise

@app.route("/api/entries/<entry_id>", methods=["PUT"])
def update_entry(entry_id):
    session = db.session

    try:
        entry = session.query(Entry).filter(Entry.id == entry_id).first()
    
        entry.id = entry_id
        entry.operation_date = request.json['operation_date']
        entry.pointed = request.json['pointed']
        entry.label = request.json['label']
        entry.value = request.json['value']
        entry.category = request.json['category']
        entry.account_id = request.json['account_id']
        entry.scheduled_operation_id = request.json['scheduled_operation_id']
    
        session.merge(entry)
        session.commit()
    
        return json.dumps("Entry #%s updated." % entry_id)
    except:
        session.rollback()
        raise

@app.route("/api/entries/<entry_id>", methods=["DELETE"])
def delete_entry(entry_id):
    session = db.session

    try:
        entry = session.query(Entry).filter(Entry.id == entry_id).first()
    
        session.delete(entry)
        session.commit()
    
        return json.dumps("Entry #%s deleted." % entry_id)
    except:
        session.rollback()
        raise