BBS論壇（二十五）

25.1.發布帖子后臺邏輯完成

（1）apps/models.py

class PostModel(db.Model):__tablename__ = 'post'id = db.Column(db.Integer, primary_key=True, autoincrement=True)title = db.Column(db.String(200), nullable=False)content = db.Column(db.Text, nullable=False)create_time = db.Column(db.DateTime, default=datetime.now)board_id = db.Column(db.Integer, db.ForeignKey('board.id'))board = db.relationship('BoardModel', backref='posts')

（2）front/decorater.py

from flask import session,redirect,url_for from functools import wraps import configdef login_requried(func):@wraps(func)def wrapper(*args,**kwargs):if config.FRONT_USER_ID in session:return func(*args,**kwargs)else:return redirect(url_for('front.signin'))return wrapper

（3）front/forms.py

class AddPostForm(BaseForm):title=StringField(validators=[InputRequired(message='請輸入標題')])content=StringField(validators=[InputRequired(message='請輸入內容')])board_id=IntegerField(validators=[InputRequired(message='請選擇版塊')])

（4）front/views.py

@bp.route('/apost/', methods=['POST', 'GET']) @login_requried def apost():if request.method == 'GET':boards = BoardModel.query.all()return render_template('front/front_apost.html', boards=boards)else:form = AddPostForm(request.form)if form.validate():title = form.title.datacontent = form.content.databoard_id = form.board_id.databoard = BoardModel.query.get(board_id)if not board:return restful.params_error(message='沒有這個版塊')post = PostModel(title=title, content=content, board_id=board_id)post.board = boarddb.session.add(post)db.session.commit()return restful.success()else:return restful.params_error(message=form.get_error())

25.2.發布帖子界面布局完成

（1）把ueditor靜態文件放到static目錄下

（2）apps目錄下新建ueditor目錄

init.py

from .ueditor import bp

ueditor.py

#encoding: utf-8from flask import (Blueprint,request,jsonify,url_for,send_from_directory,current_app as app ) import json import re import string import time import hashlib import random import base64 import sys import os from urllib import parse # 更改工作目錄。這么做的目的是七牛qiniu的sdk # 在設置緩存路徑的時候默認會設置到C:/Windows/System32下面 # 會造成沒有權限創建。 os.chdir(os.path.abspath(sys.path[0])) try:import qiniu except:pass from io import BytesIObp = Blueprint('ueditor',__name__,url_prefix='/ueditor')UEDITOR_UPLOAD_PATH = "" UEDITOR_UPLOAD_TO_QINIU = False UEDITOR_QINIU_ACCESS_KEY = "" UEDITOR_QINIU_SECRET_KEY = "" UEDITOR_QINIU_BUCKET_NAME = "" UEDITOR_QINIU_DOMAIN = ""@bp.before_app_first_request def before_first_request():global UEDITOR_UPLOAD_PATHglobal UEDITOR_UPLOAD_TO_QINIUglobal UEDITOR_QINIU_ACCESS_KEYglobal UEDITOR_QINIU_SECRET_KEYglobal UEDITOR_QINIU_BUCKET_NAMEglobal UEDITOR_QINIU_DOMAINUEDITOR_UPLOAD_PATH = app.config.get('UEDITOR_UPLOAD_PATH')if UEDITOR_UPLOAD_PATH and not os.path.exists(UEDITOR_UPLOAD_PATH):os.mkdir(UEDITOR_UPLOAD_PATH)UEDITOR_UPLOAD_TO_QINIU = app.config.get("UEDITOR_UPLOAD_TO_QINIU")if UEDITOR_UPLOAD_TO_QINIU:try:UEDITOR_QINIU_ACCESS_KEY = app.config["UEDITOR_QINIU_ACCESS_KEY"]UEDITOR_QINIU_SECRET_KEY = app.config["UEDITOR_QINIU_SECRET_KEY"]UEDITOR_QINIU_BUCKET_NAME = app.config["UEDITOR_QINIU_BUCKET_NAME"]UEDITOR_QINIU_DOMAIN = app.config["UEDITOR_QINIU_DOMAIN"]except Exception as e:option = e.args[0]raise RuntimeError('請在app.config中配置%s！'%option)csrf = app.extensions.get('csrf')if csrf:csrf.exempt(upload)def _random_filename(rawfilename):letters = string.ascii_lettersrandom_filename = str(time.time()) + "".join(random.sample(letters,5))filename = hashlib.md5(random_filename.encode('utf-8')).hexdigest()subffix = os.path.splitext(rawfilename)[-1]return filename + subffix@bp.route('/upload/',methods=['GET','POST']) def upload():action = request.args.get('action')result = {}if action == 'config':config_path = os.path.join(bp.static_folder or app.static_folder,'ueditor','config.json')with open(config_path,'r',encoding='utf-8') as fp:result = json.loads(re.sub(r'\/\*.*\*\/','',fp.read()))elif action in ['uploadimage','uploadvideo','uploadfile']:image = request.files.get("upfile")filename = image.filenamesave_filename = _random_filename(filename)result = {'state': '','url': '','title': '','original': ''}if UEDITOR_UPLOAD_TO_QINIU:if not sys.modules.get('qiniu'):raise RuntimeError('沒有導入qiniu模塊！')buffer = BytesIO()image.save(buffer)buffer.seek(0)q = qiniu.Auth(UEDITOR_QINIU_ACCESS_KEY, UEDITOR_QINIU_SECRET_KEY)token = q.upload_token(UEDITOR_QINIU_BUCKET_NAME)ret,info = qiniu.put_data(token,save_filename,buffer.read())if info.ok:result['state'] = "SUCCESS"result['url'] = parse.urljoin(UEDITOR_QINIU_DOMAIN,ret['key'])result['title'] = ret['key']result['original'] = ret['key']else:image.save(os.path.join(UEDITOR_UPLOAD_PATH, save_filename))result['state'] = "SUCCESS"result['url'] = url_for('ueditor.files',filename=save_filename)result['title'] = save_filename,result['original'] = image.filenameelif action == 'uploadscrawl':base64data = request.form.get("upfile")img = base64.b64decode(base64data)filename = _random_filename('xx.png')filepath = os.path.join(UEDITOR_UPLOAD_PATH,filename)with open(filepath,'wb') as fp:fp.write(img)result = {"state": "SUCCESS","url": url_for('files',filename=filename),"title": filename,"original": filename}return jsonify(result)@bp.route('/files/<filename>/') def files(filename):return send_from_directory(UEDITOR_UPLOAD_PATH,filename) View Code

（3）perfect_bbs.py

from apps.ueditor import bp as ueditor_bpapp.register_blueprint(ueditor_bp)

（4）front/index.html

<a class="btn btn-warning btn-block" href="{{ url_for('front.apost') }}" id="add-post-btn">發布帖子</a>

（5）front/apost.html

{% extends 'front/front_base.html' %} {% from 'common/_macros.html' import static %}{% block title %}發布帖子 {% endblock %}{% block head %}<script src="{{ static('ueditor/ueditor.config.js') }}"></script><script src="{{ static('ueditor/ueditor.all.min.js') }}"></script><script src="{{ static('front/js/front_apost.js') }}"></script> {% endblock %}{% block body %}<form method="post"><div class="form-group"><div class="input-group"><span class="input-group-addon">標題</span><input type="text" name="title" class="form-control"></div></div><div class="form-group"><div class="input-group"><span class="input-group-addon">版塊</span><select name="board_id" class="form-control">{% for board in boards %}<option value="{{ board.id }}">{{ board.name }}</option>{% endfor %}</select></div></div><div class="form-group"><script id="ueditor" type="text/plain" style="height:500px;"></script></div><div class="form-group"><button class="btn btn-danger" id="submit-btn">發布帖子</button></div></form>{% endblock %}

（6）front/js/apost.js

$(function () {var ue=UE.getEditor('ueditor',{'serverUrl':'/ueditor/upload/'}); });

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25.1.發布帖子后臺邏輯完成

25.2.發布帖子界面布局完成

轉載于:https://www.cnblogs.com/edeny/p/10021165.html

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