Google App Engine のデータストアには全文検索に対応した何かが無いので Python にがんばってもらった

gae python

くそが

models.py

# -*- coding: utf-8 -*-
from django.utils.translation import ugettext_lazy as _
from google.appengine.ext import db

class Message(db.Model):
    created_date = db.DateTimeProperty(auto_now_add = True)
    fulltext = db.TextProperty()
    nomaltext = db.StringProperty()

views.py

# -*- coding: utf-8 -*-
from django.http import HttpResponseRedirect, HttpResponse
from django.template import Context, loader

# full text search
from XXXXX.models import Message
import re

# データ100と検索用フォームを表示
def fulltextform(request):
    mes = Message.all().fetch(100)

    alllist = []
    i = 1
    for val in mes:
        alllist.append(getDataByStore(val))

    cnt = str(len(mes))

    c = Context({'alllist': alllist, 'allcnt' : cnt})
    t = loader.get_template('fulltextform.html')
    return HttpResponse(t.render(c))

# 検索実行、結果表示
def fulltextfind(request):
    stext = request.POST['stext']
    mes = Message.all()

    hitlist = []
    for val in mes:
        hit = []
        if hasWord(stext, val.fulltext) == True:
            hitlist.append(getDataByStore(val))
            continue
        if hasWord(stext, val.nomaltext) == True:
            hitlist.append(getDataByStore(val))
            continue

    cnt = len(hitlist)

    c = Context({'hitlist': hitlist, 'hitcnt' : cnt})
    t = loader.get_template('fulltextfind.html')
    return HttpResponse(t.render(c))

def hasWord(search_text, text):
    if not text:
        return False
    if not re.search(search_text, text):
        return False
    return True

def getDataByStore(data):
    result = []
    result.append(data.key())
    result.append(data.created_date.strftime('%y/Ym/%d %H:%M:%S'))
    result.append(data.fulltext)
    result.append(data.nomaltext)
    return result

fulltextform.html

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>fulltext search form</title>
<style type="text/css">
ol {
    background-color : #ECECFF;
}
</style>
</head>
<body>
<form method="post" action="./fulltextfind">
<input type="text" name="stext" value="ふるふる" size="50">
<input type="submit" value="検　索">
</form>
<p>
以下{{ allcnt }}件のデータから指定した文字列を含むデータのみ抽出。<br>
<br>
{% for val in alllist %}
<ol>
    <li>key_id : {{ val.0 }}</li>
    <li>created_date : {{ val.1 }}</li>
    <li>fulltext : <pre>{{ val.2}}</pre></li>
    <li>nomaltext : {{ val.3 }}</li>
</ol>
{% endfor %}
</p>
</body>
</html>

fulltextfind.html

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>fulltext search find</title>
<style type="text/css">
ol {
    background-color : #ECECFF;
}
.attention {
    color : #0000FF;
</style>
</head>
<body>
<a href="./fulltextform">フォームへ戻る</a>
<p>
{{ hitcnt }}件のデータがヒットしました。<br>
<br>
{% for val in hitlist %}
<ol>
    <li>key_id : {{ val.0 }}</li>
    <li>created_date : {{ val.1 }}</li>
    <li>fulltext : <pre>{{ val.2}}</pre></li>
    <li>nomaltext : {{ val.3 }}</li>
</ol>
{% endfor %}
</p>
</body>
</html>