111 lines
5.4 KiB
Python
111 lines
5.4 KiB
Python
from wtforms import SubmitField, StringField, HiddenField, FileField, validators, Form
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from flask_wtf import FlaskForm
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from flask import request, render_template, redirect
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from main import db, app, ma
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from sqlalchemy import Sequence
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from sqlalchemy.exc import SQLAlchemyError
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from status import st, Status
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import os
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################################################################################
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# Class describing Refimg in the database, and via sqlalchemy, connected to the DB as well
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################################################################################
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class Refimg(db.Model):
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id = db.Column(db.Integer, db.Sequence('refimg_id_seq'), primary_key=True )
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fname = db.Column(db.String(256), unique=True, nullable=False)
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def __repr__(self):
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return "<tag: {}, fname: {}>".format(self.id, self.fname )
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################################################################################
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# Helper class that inherits a .dump() method to turn class Refimg into json / useful in jinja2
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################################################################################
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class RefimgSchema(ma.SQLAlchemyAutoSchema):
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class Meta:
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model = Refimg
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ordered = True
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################################################################################
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# Helper class that defines a form for refimg, used to make html <form>, with field validation (via wtforms)
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################################################################################
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class RefimgForm(FlaskForm):
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id = HiddenField()
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fname = StringField('File name:', [validators.DataRequired()])
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refimg_file = FileField('File name:')
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submit = SubmitField('Save' )
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delete = SubmitField('Delete' )
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################################################################################
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# Routes for refimg data
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#
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# /refimgs -> GET only -> prints out list of all refimgs
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################################################################################
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@app.route("/refimgs", methods=["GET"])
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def refimgs():
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refimgs = Refimg.query.all()
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return render_template("refimgs.html", refimgs=refimgs, alert=st.GetAlert(), message=st.GetMessage() )
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################################################################################
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# /refimg -> GET/POST -> creates a new refimg type and when created, takes you back to /refimgs
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################################################################################
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@app.route("/refimg", methods=["GET", "POST"])
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def new_refimg():
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form = RefimgForm(request.form)
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page_title='Create new Reference Image'
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if request.method == 'GET':
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return render_template("refimg.html", form=form, page_title=page_title )
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else:
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# now save into the DB
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refimg = Refimg( fname=request.form["fname"] )
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try:
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# save the actual uploaded image to reference_images/
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f=request.files['refimg_file']
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f.save(os.path.join("reference_images/", request.form["fname"]))
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db.session.add(refimg)
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db.session.commit()
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st.SetMessage( "Created new Refimg ({})".format(refimg.fname) )
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return redirect( '/refimgs' )
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except SQLAlchemyError as e:
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st.SetAlert( "danger" )
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st.SetMessage( "<b>Failed to add Refimg:</b> {}".format(e.orig) )
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except Exception as e:
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st.SetAlert( "danger" )
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st.SetMessage( "<b>Failed to modify Refimg:</b> {}".format(e) )
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return render_template("refimg.html", form=form, page_title=page_title, alert=st.GetAlert(), message=st.GetMessage() )
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################################################################################
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# /refimg/<id> -> GET/POST(save or delete) -> shows/edits/delets a single
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# refimg
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################################################################################
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@app.route("/refimg/<id>", methods=["GET", "POST"])
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def refimg(id):
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form = RefimgForm(request.form)
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page_title='Edit Reference Image'
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if request.method == 'POST':
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try:
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refimg = Refimg.query.get(id)
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os.remove("reference_images/{}".format(refimg.fname) )
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if 'delete' in request.form:
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st.SetMessage("Successfully deleted Refimg: ({})".format( refimg.fname ) )
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refimg = Refimg.query.filter(Refimg.id==id).delete()
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if 'submit' in request.form and form.validate():
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st.SetMessage("Successfully Updated Refimg: (From: {})".format(refimg.fname))
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refimg.fname = request.form['fname']
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st.AppendMessage(" To: ({})".format(refimg.fname) )
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# save the actual uploaded image to reference_images/
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f=request.files['refimg_file']
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f.save(os.path.join("reference_images/", request.form["fname"]))
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db.session.commit()
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return redirect( '/refimgs' )
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except SQLAlchemyError as e:
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st.SetAlert( "danger" )
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st.SetMessage( "<b>Failed to modify Refimg:</b> {}".format(e.orig) )
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except Exception as e:
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st.SetAlert( "danger" )
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st.SetMessage( "<b>Failed to modify Refimg:</b> {}".format(e) )
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return render_template("refimg.html", form=form, page_title=page_title, alert=st.GetAlert(), message=st.GetMessage() )
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else:
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refimg = Refimg.query.get(id)
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form = RefimgForm(request.values, obj=refimg)
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return render_template("refimg.html", object=refimg, form=form, page_title = page_title, alert=st.GetAlert(), message=st.GetMessage() )
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