Rewrote the application in Python/Flask/SQLAlchemy

src/api/controller/accounts.py

@@ -0,0 +1,75 @@
+
+from app import app
+from app import db
+from app import session
+
+from api.model.accounts import Account
+from api.model.entries import Entry
+
+from flask import json, request
+
+from sqlalchemy import func, case, cast, extract, distinct
+
+@app.route("/api/accounts", methods=["GET"])
+def get_accounts():
+    """
+    Returns accounts with their solds.
+    """
+
+    query=session.query(
+      Account.id.label("id"),
+      Account.name.label("name"),
+      func.sum(Entry.value).label("future"),
+      func.sum(case([(Entry.operation_date != None, Entry.value,)], else_=cast(0, db.Numeric(15, 2)))).label("pointed"),
+      func.sum(case([(Entry.value_date < func.now(), Entry.value,)], else_=cast(0, db.Numeric(15, 2)))).label("current")
+    ).outerjoin(Entry).group_by(Account.id).order_by(Account.id)
+
+    return json.dumps([{
+        "id": i.id,
+        "name": i.name,
+        "current": str(i.current),
+        "pointed": str(i.pointed),
+        "future": str(i.future)
+    } for i in query.all()])
+
+@app.route("/api/accounts/<account_id>/months")
+def get_months(account_id):
+    query=session.query(
+      distinct(extract("year", Entry.value_date)).label("year"),
+      extract("month", Entry.value_date).label("month")
+    ).filter(Entry.account_id == account_id).order_by("year", "month")
+
+    return json.dumps([{
+        "year": i.year,
+        "month": i.month
+    } for i in query.all()])
+
+@app.route("/api/accounts", methods=["PUT"])
+def add_account():
+    account = Account(request.json['name'])
+
+    session.add(account)
+    session.commit()
+
+    return json.dumps("Account added.")
+
+@app.route("/api/accounts/<account_id>", methods=["PUT"])
+def update_account(account_id):
+    account = session.query(Account).filter(Account.id == account_id).first()
+
+    account.name = request.json['name']
+
+    session.merge(account)
+    session.commit()
+
+    return json.dumps("Account #%s updated." % account_id)
+
+@app.route("/api/accounts/<account_id>", methods=["DELETE"])
+def delete_account(account_id):
+    account = session.query(Account).filter(Account.id == account_id).first()
+
+    session.delete(account)
+    session.commit()
+
+    return json.dumps("Account #%s deleted." % account_id)
+

src/api/controller/entries.py

@@ -0,0 +1,88 @@
+from app import app
+from app import db
+from app import session
+
+from api.model.entries import Entry
+
+from sqlalchemy import func, desc
+from sqlalchemy.ext.hybrid import hybrid_property, hybrid_method
+from sqlalchemy.orm import sessionmaker, column_property
+from sqlalchemy.sql import func, select
+
+#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.
+    """
+    query=session.query(
+      Entry
+    ).select_from(
+      session.query(Entry)
+      .filter(Entry.account_id == account_id)
+      .order_by(
+        desc(Entry.value_date),
+        desc(Entry.operation_date),
+        Entry.label,
+        Entry.value
+      ).subquery()
+    ).filter(func.date_trunc('month', Entry.value_date) == "%s-%s-01" % (year, month))
+
+    return json.dumps([{
+         "id": i.id,
+         "value_date": i.value_date.strftime("%Y-%m-%d"),
+         "operation_date": i.operation_date.strftime("%Y-%m-%d") if i.operation_date else None,
+         "label": i.label,
+         "value": str(i.value),
+         "category": i.category,
+         "sold": str(i.sold),
+         "pointedsold": str(i.pointedsold),
+         "account_id": i.account_id
+    } for i in query.all()])
+
+@app.route("/api/entries", methods=["PUT"])
+def add_entry():
+    entry = Entry(
+      value_date = request.json['value_date'],
+      operation_date = request.json['operation_date'],
+      label = request.json['label'],
+      value = request.json['value'],
+      category = request.json['category'],
+      account_id = request.json['account_id']
+    )
+
+    session.add(entry)
+    session.commit()
+
+    return json.dumps("Entry added.")
+
+@app.route("/api/entries/<entry_id>", methods=["PUT"])
+def update_entry(entry_id):
+    entry = session.query(Entry).filter(Entry.id == entry_id).first()
+
+    entry.id = entry_id
+    entry.value_date = request.json['value_date']
+    entry.operation_date = request.json['operation_date']
+    entry.label = request.json['label']
+    entry.value = request.json['value']
+    entry.category = request.json['category']
+    entry.account_id = request.json['account_id']
+
+    session.merge(entry)
+    session.commit()
+
+    return json.dumps("Entry #%s updated." % entry_id)
+
+@app.route("/api/entries/<entry_id>", methods=["DELETE"])
+def delete_entry(entry_id):
+    entry = session.query(Entry).filter(Entry.id == entry_id).first()
+
+    session.delete(entry)
+    session.commit()
+
+    return json.dumps("Entry #%s deleted." % entry_id)
+
+

src/api/model/accounts.py

@@ -0,0 +1,12 @@
+from app import app
+from app import db
+
+from collections import OrderedDict
+
+class Account(db.Model):
+    id = db.Column(db.Integer, primary_key = True)
+    name = db.Column(db.String(200), nullable = False)
+
+    def __init__(self, name):
+        self.name = name
+

src/api/model/entries.py

@@ -0,0 +1,33 @@
+from app import app
+from app import db
+
+from api.model.accounts import Account
+
+from sqlalchemy import func, desc
+from sqlalchemy.orm import column_property
+from sqlalchemy.sql import func, select
+
+from collections import OrderedDict
+
+class Entry(db.Model):
+    id = db.Column(db.Integer, primary_key=True)
+    value_date = db.Column(db.Date, nullable = False)
+    operation_date = db.Column(db.Date, nullable = True)
+    label = db.Column(db.String(500), nullable = False)
+    value = db.Column(db.Numeric(15, 2), nullable = False)
+    account_id = db.Column(db.Integer, db.ForeignKey('account.id'))
+
+    account = db.relationship(Account, backref = db.backref('entry', lazy="Dynamic"))
+
+    category = db.Column(db.String(100), nullable = True)
+    sold = column_property(func.sum(value).over(order_by="value_date, operation_date, label desc, value desc"))
+    pointedsold = column_property(func.sum(value).over(partition_by="operation_date is not null", order_by="value_date, operation_date, label desc, value desc"))
+
+    def __init__(self, value_date, label, value, account_id, operation_date = None, category = None):
+        self.value_date = value_date
+        self.operation_date = operation_date
+        self.label = label
+        self.value = value
+        self.account_id = account_id
+        self.category = category
+