Added snippet database to the website.

flask_website/views/snippets.py

@@ -1,8 +1,116 @@
-from flask import Module, render_template
+from flask import Module, render_template, request, flash, abort, redirect, \
+     g, url_for
+from flask_website.utils import requires_login, format_creole
+from flask_website.database import Category, Snippet, Comment, db_session
 
 snippets = Module(__name__, url_prefix='/snippets')
 
 
 @snippets.route('/')
 def index():
-    return render_template('snippets/index.html')
+    return render_template('snippets/index.html',
+        categories=Category.query.order_by(Category.name).all(),
+        recent=Snippet.query.order_by(Snippet.pub_date.desc()).limit(5).all())
+
+
+@snippets.route('/new/', methods=['GET', 'POST'])
+@requires_login
+def new():
+    category_id = None
+    preview = None
+    if 'category' in request.args:
+        rv = Category.query.filter_by(slug=request.args['category']).first()
+        if rv is not None:
+            category_id = rv.id
+    if request.method == 'POST':
+        if 'preview' in request.form:
+            preview = format_creole(request.form['body'])
+        else:
+            title = request.form['title']
+            body = request.form['body']
+            category_id = request.form.get('category', type=int)
+            if not body:
+                flash(u'Error: you have to enter a snippet')
+            else:
+                category = Category.query.get(category_id)
+                if category is not None:
+                    snippet = Snippet(g.user, title, body, category)
+                    db_session.add(snippet)
+                    db_session.commit()
+                    flash(u'Your snippet was added')
+                    return redirect(snippet.url)
+    return render_template('snippets/new.html',
+        categories=Category.query.order_by(Category.name).all(),
+        active_category=category_id, preview=preview)
+
+
+@snippets.route('/<int:id>/', methods=['GET', 'POST'])
+def show(id):
+    snippet = Snippet.query.get(id)
+    if snippet is None:
+        abort(404)
+    if request.method == 'POST':
+        title = request.form['title']
+        text = request.form['text']
+        if not title:
+            flash(u'Error: the title is required')
+        elif not text:
+            flash(u'Error: the text is required')
+        else:
+            db_session.add(Comment(snippet, g.user, title, text))
+            db_session.commit()
+            flash(u'Your comment was added')
+            return redirect(snippet.url)
+    return render_template('snippets/show.html', snippet=snippet)
+
+
+@snippets.route('/edit/<int:id>/', methods=['GET', 'POST'])
+@requires_login
+def edit(id):
+    snippet = Snippet.query.get(id)
+    if snippet is None:
+        abort(404)
+    if snippet.author != g.user:
+        abort(401)
+    preview = None
+    form = dict(title=snippet.title, body=snippet.body,
+                category=snippet.category.id)
+    if request.method == 'POST':
+        form['title'] = request.form['title']
+        form['body'] = request.form['body']
+        form['category'] = request.form.get('category', type=int)
+        if 'preview' in request.form:
+            preview = format_creole(request.form['body'])
+        elif 'delete' in request.form:
+            for comment in snippet.comments:
+                db_session.delete(comment)
+            db_session.delete(snippet)
+            db_session.commit()
+            flash(u'Your snippet was deleted')
+            return redirect(url_for('snippets.index'))
+        else:
+            category_id = request.form.get('category', type=int)
+            if not form['body']:
+                flash(u'Error: you have to enter a snippet')
+            else:
+                category = Category.query.get(category_id)
+                if category is not None:
+                    snippet.title = form['title']
+                    snippet.body = form['body']
+                    snippet.category = category
+                    db_session.commit()
+                    flash(u'Your snippet was modified')
+                    return redirect(snippet.url)
+    return render_template('snippets/edit.html',
+        snippet=snippet, preview=preview, form=form,
+        categories=Category.query.order_by(Category.name).all())
+
+
+@snippets.route('/category/<slug>/')
+def category(slug):
+    category = Category.query.filter_by(slug=slug).first()
+    if category is None:
+        abort(404)
+    snippets = category.snippets.order_by(Snippet.title).all()
+    return render_template('snippets/category.html', category=category,
+                           snippets=snippets)