Merge pull request #5 from ndkoch/currency_exchange

Currency exchange

ihatemoney/forms.py

@@ -21,8 +21,7 @@ from jinja2 import Markup
 import email_validator
 
 from ihatemoney.models import Project, Person
-from ihatemoney.utils import slugify, eval_arithmetic_expression
+from ihatemoney.utils import slugify, eval_arithmetic_expression,CurrencyConverter
-
 
 def strip_filter(string):
     try:
@@ -87,6 +86,10 @@ class EditProjectForm(FlaskForm):
     name = StringField(_("Project name"), validators=[DataRequired()])
     password = StringField(_("Private code"), validators=[DataRequired()])
     contact_email = StringField(_("Email"), validators=[DataRequired(), Email()])
+    currency_helper = CurrencyConverter()
+    default_currency = SelectField(
+        _("Default Currency"), choices=currency_helper.get_currencies(), validators=[DataRequired()]
+    )
 
     def save(self):
         """Create a new project with the information given by this form.
@@ -98,6 +101,7 @@ class EditProjectForm(FlaskForm):
             id=self.id.data,
             password=generate_password_hash(self.password.data),
             contact_email=self.contact_email.data,
+            default_currency=self.default_currency.data
         )
         return project
 
@@ -106,6 +110,7 @@ class EditProjectForm(FlaskForm):
         project.name = self.name.data
         project.password = generate_password_hash(self.password.data)
         project.contact_email = self.contact_email.data
+        project.default_currency = self.default_currency.data
 
         return project
 

ihatemoney/migrations/versions/5cdb4f2e52c9_add_default_currency.py

@@ -7,15 +7,17 @@ Create Date: 2019-12-06 15:46:03.416256
 """
 
 # revision identifiers, used by Alembic.
-revision = '5cdb4f2e52c9'
+revision = "5cdb4f2e52c9"
-down_revision = 'e782dd493cdc'
+down_revision = "e782dd493cdc"
 
 from alembic import op
 import sqlalchemy as sa
 
 
 def upgrade():
-    op.add_column("project", sa.Column("default_currency", sa.String(length=3), nullable=True))
+    op.add_column(
+        "project", sa.Column("default_currency", sa.String(length=3), nullable=True)
+    )
 
 
 def downgrade():

ihatemoney/migrations/versions/e782dd493cdc_add_original_currency_and_amount.py

@@ -7,15 +7,17 @@ Create Date: 2019-12-06 15:12:46.116711
 """
 
 # revision identifiers, used by Alembic.
-revision = 'e782dd493cdc'
+revision = "e782dd493cdc"
-down_revision = '6c6fb2b7f229'
+down_revision = "6c6fb2b7f229"
 
 from alembic import op
 import sqlalchemy as sa
 
 
 def upgrade():
-    op.add_column("bill", sa.Column("original_currency", sa.String(length=3), nullable=True))
+    op.add_column(
+        "bill", sa.Column("original_currency", sa.String(length=3), nullable=True)
+    )
     op.add_column("bill", sa.Column("original_amount", sa.Float(), nullable=True))
 
 

ihatemoney/models.py

@@ -379,6 +379,7 @@ class Bill(db.Model):
             "external_link": self.external_link,
             "original_currency": self.original_currency,
             "original_amount": self.original_amount,
+
         }
 
     def pay_each(self):

ihatemoney/templates/forms.html

@@ -65,6 +65,7 @@
     {{ input(form.name) }}
     {{ input(form.password) }}
     {{ input(form.contact_email) }}
+    {{ input(form.default_currency) }}
     {% if not home %}
     {{ submit(form.submit, home=True) }}
     {% endif %}
@@ -78,6 +79,7 @@
     {{ input(form.name) }}
     {{ input(form.password) }}
     {{ input(form.contact_email) }}
+    {{ input(form.default_currency) }}
     <div class="actions">
         <button class="btn btn-primary">{{ _("Edit the project") }}</button>
         <a id="delete-project" style="color:red; margin-left:10px; cursor:pointer; ">{{ _("delete") }}</a>

ihatemoney/utils.py

@@ -12,7 +12,20 @@ from werkzeug.routing import HTTPException, RoutingException
 from datetime import datetime, timedelta
 
 import csv
+import requests
 
+class CurrencyConverter(object):
+    api_url = 'https://api.exchangerate-api.com/v4/latest/USD'
+    response = []
+
+    def __init__(self):
+        self.response = requests.get(self.api_url).json();
+    
+    def get_currencies(self):
+        currencies = []
+        for rate in self.response["rates"]:
+            currencies.append((rate,rate))
+        return currencies
 
 def slugify(value):
     """Normalizes string, converts to lowercase, removes non-alpha characters,

ihatemoney/web.py

@@ -277,6 +277,8 @@ def create_project():
             project = form.save()
             db.session.add(project)
             db.session.commit()
+            print(project.name)
+            print(project.default_currency)
 
             # create the session object (authenticate)
             session[project.id] = True
@@ -299,7 +301,7 @@ def create_project():
             )
             try:
                 current_app.mail.send(msg)
-            except SMTPRecipientsRefused:
+            except (SMTPRecipientsRefused, ConnectionRefusedError):
                 msg_compl = "Problem sending mail. "
                 # TODO: destroy the project and cancel instead?
             else:
@@ -315,7 +317,9 @@ def create_project():
             )
             return redirect(url_for(".list_bills", project_id=project.id))
 
-    return render_template("create_project.html", form=form)
+    return render_template(
+        "create_project.html", form=form,
+    )
 
 
 @main.route("/password-reminder", methods=["GET", "POST"])
@@ -387,7 +391,9 @@ def edit_project():
         edit_form.contact_email.data = g.project.contact_email
 
     return render_template(
-        "edit_project.html", edit_form=edit_form, current_view="edit_project"
+        "edit_project.html",
+        edit_form=edit_form,
+        current_view="edit_project",
     )
 
 
@@ -449,6 +455,7 @@ def demo():
             name="demonstration",
             password=generate_password_hash("demo"),
             contact_email="demo@notmyidea.org",
+            default_currency="USD",
         )
         db.session.add(project)
         db.session.commit()

requirements.txt

@@ -25,3 +25,4 @@ pytz==2019.2
 SQLAlchemy==1.3.8
 Werkzeug==0.16.0
 WTForms==2.2.1
+requests==2.22.0