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application.py
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application.py
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import os
from flask import Flask, redirect, url_for, render_template, flash
from forms import RecipeForm, SearchForm
import pandas as pd
from werkzeug.utils import secure_filename
app = Flask(__name__)
app.config['SECRET_KEY'] = "aon123xzdondfipubasdfgibf45234uasdfbipSBDFPIUBdsf"
app.config['SUBMITTED_DATA'] = os.path.join("static", "data_dir", "")
app.config['SUBMITTED_IMG'] = os.path.join("static", "image_dir", "")
@app.context_processor
def base():
form = SearchForm()
return dict(form=form)
@app.route('/')
def hello_world():
return render_template("index.html")
@app.route('/add_recipe', methods=["POST", "GET"])
def add_recipe():
"""
A function that uses a pre-built form that allows a user to add a recipe to the database, including file handling.
:return:
"""
df = pd.read_csv("static/data_dir/recipes.csv", dtype={"name": str})
df = df.set_index("name")
form = RecipeForm()
if form.validate_on_submit():
recipe_name = form.recipe_name.data
if recipe_name not in df.index:
recipe_ingredients = form.recipe_ingredients.data
recipe_instructions = form.recipe_instructions.data
recipe_serving_size = form.recipe_serving_size.data
picture_filename = (recipe_name.lower().replace(" ", "_") + "." +
secure_filename(form.recipe_picture.data.filename).split(".")[-1])
form.recipe_picture.data.save(os.path.join(app.config["SUBMITTED_IMG"] + picture_filename))
df.loc[recipe_name] = [recipe_ingredients, recipe_instructions, recipe_serving_size, picture_filename]
df.to_csv("static/data_dir/recipes.csv")
recipe = df.loc[recipe_name]
flash("Your recipe was added to the cookbook!")
return render_template("view_recipe.html", recipe=recipe)
else:
flash("A recipe with that name already exists! \nTry something funnier.")
return redirect(url_for("add_recipe"))
else:
return render_template("add_recipe.html", form=form)
@app.route("/recipes", methods=["POST", "GET"])
def recipes():
recipes = pd.read_csv("static/data_dir/recipes.csv", dtype={"name": str})
recipes = recipes.set_index("name")
return render_template("recipes.html", recipes=recipes)
@app.route("/display_recipe/<recipe_name>")
def display_recipe(recipe_name):
recipes = pd.read_csv("static/data_dir/recipes.csv", dtype={"name": str})
recipes = recipes.set_index("name")
recipe = recipes.loc[recipe_name]
return render_template("view_recipe.html", recipe=recipe)
@app.route("/search", methods=["POST"])
def search():
form = SearchForm()
if form.validate_on_submit():
searchString = form.search.data
recipes = pd.read_csv("static/data_dir/recipes.csv", dtype={"name": str})
recipes = recipes.set_index("name")
if searchString in recipes.index:
recipe = recipes.loc[searchString]
return render_template("view_recipe.html", form=form, recipe=recipe)
else:
flash("The recipe you looked for does not exist, try something else.")
return redirect(url_for("hello_world"))
if __name__ == "__main__":
app.run()