Initial commit.

Mike Wales · Mike Wales · commit 5af9d19adf9a · 2015-02-02T11:16:45.000-08:00
diff --git a/README.md b/README.md
@@ -0,0 +1,4 @@
+rdb-fullstack
+=============
+
+Common code for the Relational Databases and Full Stack Fundamentals courses
diff --git a/vagrant/.vagrant/machines/default/virtualbox/action_provision b/vagrant/.vagrant/machines/default/virtualbox/action_provision
@@ -0,0 +1 @@
+1.5:a5703ba0-4f2b-48a2-a9cd-df7f9f6351bc
diff --git a/vagrant/.vagrant/machines/default/virtualbox/action_set_name b/vagrant/.vagrant/machines/default/virtualbox/action_set_name
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+1417389922
diff --git a/vagrant/.vagrant/machines/default/virtualbox/id b/vagrant/.vagrant/machines/default/virtualbox/id
@@ -0,0 +1 @@
+a5703ba0-4f2b-48a2-a9cd-df7f9f6351bc
diff --git a/vagrant/.vagrant/machines/default/virtualbox/index_uuid b/vagrant/.vagrant/machines/default/virtualbox/index_uuid
@@ -0,0 +1 @@
+0ec7f8cc1f8c4b4288739a3eba765013
diff --git a/vagrant/.vagrant/machines/default/virtualbox/synced_folders b/vagrant/.vagrant/machines/default/virtualbox/synced_folders
@@ -0,0 +1 @@
+{"virtualbox":{"/vagrant":{"guestpath":"/vagrant","hostpath":"/Users/karl/rdb-fullstack/vagrant","disabled":false}}}
diff --git a/vagrant/Vagrantfile b/vagrant/Vagrantfile
@@ -0,0 +1,11 @@
+# -*- mode: ruby -*-
+# vi: set ft=ruby :
+
+VAGRANTFILE_API_VERSION = "2"
+
+Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
+  config.vm.provision "shell", path: "pg_config.sh"
+  # config.vm.box = "hashicorp/precise32"
+  config.vm.box = "ubuntu/trusty32"
+  config.vm.network "forwarded_port", guest: 8000, host: 8000
+end
diff --git a/vagrant/forum/forum.py b/vagrant/forum/forum.py
@@ -0,0 +1,107 @@
+#
+# DB Forum - a buggy web forum server backed by a good database
+#
+
+# The forumdb module is where the database interface code goes.
+import forumdb
+
+# Other modules used to run a web server.
+import cgi
+from wsgiref.simple_server import make_server
+from wsgiref import util
+
+# HTML template for the forum page
+HTML_WRAP = '''\
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>DB Forum</title>
+    <style>
+      h1, form { text-align: center; }
+      textarea { width: 400px; height: 100px; }
+      div.post { border: 1px solid #999;
+                 padding: 10px 10px;
+		 margin: 10px 20%%; }
+      hr.postbound { width: 50%%; }
+      em.date { color: #999 }
+    </style>
+  </head>
+  <body>
+    <h1>DB Forum</h1>
+    <form method=post action="/post">
+      <div><textarea id="content" name="content"></textarea></div>
+      <div><button id="go" type="submit">Post message</button></div>
+    </form>
+    <!-- post content will go here -->
+%s
+  </body>
+</html>
+'''
+
+# HTML template for an individual comment
+POST = '''\
+    <div class=post><em class=date>%(time)s</em><br>%(content)s</div>
+'''
+
+## Request handler for main page
+def View(env, resp):
+    '''View is the 'main page' of the forum.
+
+    It displays the submission form and the previously posted messages.
+    '''
+    # get posts from database
+    posts = forumdb.GetAllPosts()
+    # send results
+    headers = [('Content-type', 'text/html')]
+    resp('200 OK', headers)
+    return [HTML_WRAP % ''.join(POST % p for p in posts)]
+
+## Request handler for posting - inserts to database
+def Post(env, resp):
+    '''Post handles a submission of the forum's form.
+  
+    The message the user posted is saved in the database, then it sends a 302
+    Redirect back to the main page so the user can see their new post.
+    '''
+    # Get post content
+    input = env['wsgi.input']
+    length = int(env.get('CONTENT_LENGTH', 0))
+    # If length is zero, post is empty - don't save it.
+    if length > 0:
+        postdata = input.read(length)
+        fields = cgi.parse_qs(postdata)
+        content = fields['content'][0]
+        # If the post is just whitespace, don't save it.
+        content = content.strip()
+        if content:
+            # Save it in the database
+            forumdb.AddPost(content)
+    # 302 redirect back to the main page
+    headers = [('Location', '/'),
+               ('Content-type', 'text/plain')]
+    resp('302 REDIRECT', headers) 
+    return ['Redirecting']
+
+## Dispatch table - maps URL prefixes to request handlers
+DISPATCH = {'': View,
+            'post': Post,
+	    }
+
+## Dispatcher forwards requests according to the DISPATCH table.
+def Dispatcher(env, resp):
+    '''Send requests to handlers based on the first path component.'''
+    page = util.shift_path_info(env)
+    if page in DISPATCH:
+        return DISPATCH[page](env, resp)
+    else:
+        status = '404 Not Found'
+        headers = [('Content-type', 'text/plain')]
+        resp(status, headers)    
+        return ['Not Found: ' + page]
+
+
+# Run this bad server only on localhost!
+httpd = make_server('', 8000, Dispatcher)
+print "Serving HTTP on port 8000..."
+httpd.serve_forever()
+
diff --git a/vagrant/forum/forum.sql b/vagrant/forum/forum.sql
@@ -0,0 +1,5 @@
+
+CREATE TABLE posts ( content TEXT,
+                     time TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+                     id SERIAL );
+
diff --git a/vagrant/forum/forumdb.py b/vagrant/forum/forumdb.py
@@ -0,0 +1,31 @@
+#
+# Database access functions for the web forum.
+# 
+
+import time
+
+## Database connection
+DB = []
+
+## Get posts from database.
+def GetAllPosts():
+    '''Get all the posts from the database, sorted with the newest first.
+
+    Returns:
+      A list of dictionaries, where each dictionary has a 'content' key
+      pointing to the post content, and 'time' key pointing to the time
+      it was posted.
+    '''
+    posts = [{'content': str(row[1]), 'time': str(row[0])} for row in DB]
+    posts.sort(key=lambda row: row['time'], reverse=True)
+    return posts
+
+## Add a post to the database.
+def AddPost(content):
+    '''Add a new post to the database.
+
+    Args:
+      content: The text content of the new post.
+    '''
+    t = time.strftime('%c', time.localtime())
+    DB.append((t, content))
diff --git a/vagrant/pg_config.sh b/vagrant/pg_config.sh
@@ -0,0 +1,10 @@
+
+apt-get -qqy update
+apt-get -qqy install postgresql python-psycopg2
+apt-get -qqy install python-flask python-sqlalchemy
+apt-get -qqy install python-pip
+pip install bleach
+su postgres -c 'createuser -dRS vagrant'
+su vagrant -c 'createdb'
+su vagrant -c 'createdb forum'
+su vagrant -c 'psql forum -f /vagrant/forum/forum.sql'
diff --git a/vagrant/tournament/tournament.py b/vagrant/tournament/tournament.py
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+#!/usr/bin/env python
+# 
+# tournament.py -- implementation of a Swiss-system tournament
+#
+
+import psycopg2
+
+
+def connect():
+    """Connect to the PostgreSQL database.  Returns a database connection."""
+    return psycopg2.connect("dbname=tournament")
+
+
+def deleteMatches():
+    """Remove all the match records from the database."""
+
+
+def deletePlayers():
+    """Remove all the player records from the database."""
+
+
+def countPlayers():
+    """Returns the number of players currently registered."""
+
+
+def registerPlayer(name):
+    """Adds a player to the tournament database.
+  
+    The database assigns a unique serial id number for the player.  (This
+    should be handled by your SQL database schema, not in your Python code.)
+  
+    Args:
+      name: the player's full name (need not be unique).
+    """
+
+
+def playerStandings():
+    """Returns a list of the players and their win records, sorted by wins.
+
+    The first entry in the list should be the player in first place, or a player
+    tied for first place if there is currently a tie.
+
+    Returns:
+      A list of tuples, each of which contains (id, name, wins, matches):
+        id: the player's unique id (assigned by the database)
+        name: the player's full name (as registered)
+        wins: the number of matches the player has won
+        matches: the number of matches the player has played
+    """
+
+
+def reportMatch(winner, loser):
+    """Records the outcome of a single match between two players.
+
+    Args:
+      winner:  the id number of the player who won
+      loser:  the id number of the player who lost
+    """
+ 
+ 
+def swissPairings():
+    """Returns a list of pairs of players for the next round of a match.
+  
+    Assuming that there are an even number of players registered, each player
+    appears exactly once in the pairings.  Each player is paired with another
+    player with an equal or nearly-equal win record, that is, a player adjacent
+    to him or her in the standings.
+  
+    Returns:
+      A list of tuples, each of which contains (id1, name1, id2, name2)
+        id1: the first player's unique id
+        name1: the first player's name
+        id2: the second player's unique id
+        name2: the second player's name
+    """
+
+
diff --git a/vagrant/tournament/tournament.sql b/vagrant/tournament/tournament.sql
@@ -0,0 +1,9 @@
+-- Table definitions for the tournament project.
+--
+-- Put your SQL 'create table' statements in this file; also 'create view'
+-- statements if you choose to use it.
+--
+-- You can write comments in this file by starting them with two dashes, like
+-- these lines here.
+
+
diff --git a/vagrant/tournament/tournament_test.py b/vagrant/tournament/tournament_test.py

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	`1`	`+1.5:a5703ba0-4f2b-48a2-a9cd-df7f9f6351bc`
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	`1`	`+{"virtualbox":{"/vagrant":{"guestpath":"/vagrant","hostpath":"/Users/karl/rdb-fullstack/vagrant","disabled":false}}}`