rays A "LESS PAIN" lightweight WSGI compatible web framework
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web framework web framework WSGI WSGI framework

rays Description

rays is a WSGI compatible web framework designed for small web applications. It supports both Python 2.7 and Python 3.2. rays handles multibyte-charcters correctly(It is important for me, So I'm a Japanese).Installationeasy_install raysorpip install -e git://github.com/yuin/rays.git#egg=raysor download a zip file from https://github.com/yuin/rays/zipball/master andpython setup.py installExampleYou can find these source code in the src/samples/blog directory.index.py:from rays import *from rays.compat import *import sys, os.path, math, contextlibfrom datetime import datetimeimport threadingapp = Application()APP_DIR = os.path.dirname(__file__)DB_FILE = os.path.join(APP_DIR, "test.db")c = threading.local()app.config()class BaseModel(Model): # {{{ def class_init(cls): Model.class_init(cls) @cls.hook("before_create") def before_create(self): self.created_at = datetime.now()# }}}class Entry(BaseModel): #{{{ table_name = "entries" def validate(self): result = [] if not self.title: result.append("Title required.") if len(self.title) > 100: result.append("Title too long.") if len(self.title) < 2: result.append("Title too short.") if not self.body: result.append("Body required.") return result# }}}# filters {{{def context_setup_filter(*a, **k): c.title = app.vars.blog_title c.errors = [] yielddef admin_filter(*a, **k): if not app.session: app.res.redirect(app.url.admin_signin()) yielddef flash_filter(*a, **k): cond = app.session if cond: app.session = app.session or {} keys = list(iter_keys(app.session)) yield if cond: for key in keys: del app.session# }}}# helpers {{{@app.helper@contextlib.contextmanagerdef main_block(helper): helper.concat("< div id=\"main\" >") with helper.capture("__main_block"): yield helper.concat(helper.captured("__main_block")) helper.concat("< /div >")@app.helperdef show_errors(helper, errors): if errors: helper.concat("< div class=\"error\" >< strong >Error:< /strong >< ul >") for error in errors: helper.concat("< li >"+error+"< /li >") helper.concat("< /ul >< /div >")@app.helperdef show_message(helper, message): if message: helper.concat("< div class=\"message\" >") helper.concat(message) helper.concat("< /div >")@app.helperdef format_datetime(helper, dt): return dt.strftime("%m.%d.%y/%I%p %Z").lower()@app.helperdef hatom_published(helper, entry): return """< abbr class="published" title="%s" >%s< /abbr >"""%(entry.created_at.isoformat(), helper.format_datetime(entry.created_at))@app.helperdef format_body(helper, body): return body.replace("\n", "< br / >")@app.helperdef page_link(helper, page): return app.url.index()+"?page=%d"%page@app.helperdef pagination(helper, count, page): page = int(page) n = app.vars.entry_per_page tpl = append = tpl.append max_page = int(math.ceil(count/float(n))) if page > max_page: page=1 start, end = max(page-4, 1), min(page+4, max_page) append("< li class=\"%s\" >%s< /li >"% \ ((page-1) < 1 and ("previous-off", "«Previous") or\ ("previous", "< a href=\"%s\" rel=\"prev\" >«Previous< /a >"%(helper.page_link(c, page-1))))) if start != 1: append("< li >< a href=\"%s\" >1< /a >< /li >"%helper.page_link(c, 1)) if start > 2: append("< li > ....... < /li >") for i in irange(start, end+1): if i == page: append("< li class=\"active\" >%d< /li >"%i) else: append("< li >< a href=\"%s\" >%d< /a >< /li >"%(helper.page_link(c, i), i)) if end < (max_page-1): append("< li > ...... < /li >") if end != max_page: append("< li >< a href=\"%s\" >%d< /a >< /li >"%(helper.page_link(c, max_page), max_page)) append("< li class=\"%s\" >%s< /li >"% \ ((page+1) > max_page and ("next-off", "Next»") or\ ("next", "< a href=\"%s\" rel=\"next\" >Next»< /a >"%(helper.page_link(c, page+1))))) append("") return "".join(tpl)# }}}# db {{{def find_entry_by_id(entry_id): return app.db.select_one(, cond="id=?", values=)def find_entries(offset, limit): return app.db.select(, cond="1 order by created_at desc limit ? offset ?", values=)def count_entries(): return app.db.select_one(, select="SELECT count(id) as count from %(tables)s").count# }}}with app.filter(context_setup_filter): @app.get("") def index(): limit = app.vars.entry_per_page offset = limit*(int(app.req.input.get("page", 1)) - 1) c.entries = find_entries(offset, limit) c.count = count_entries() return app.renderer.show_entries({"c":c}) @app.get("articles/(int:\d+)") def show_entry(entry_id): c.entry = find_entry_by_id(entry_id) c.title += " :: %s"%c.entry.title return app.renderer.show_entry({"c":c}) @app.get("admin/signin") def admin_signin_form(): return app.renderer.admin_signin_form({"c":c}) @app.post("admin/signin") def admin_signin(): if app.req.input == app.vars.admin_name and \ app.req.input == app.vars.admin_password: app.session = True app.res.redirect(app.url.admin_index()) else: c.errors = return app.renderer.admin_signin_form({"c":c}) with app.filter(admin_filter, flash_filter): @app.get("admin") def admin_index(): return app.renderer.admin_index({"c":c}) @app.get("admin/signout") def admin_signout(): app.session.kill() app.res.redirect(app.url.admin_signin_form()) @app.get("admin/entry/new") def admin_entry_new(): if not hasattr(c, "entry"): c.entry = Entry(title="", body="") return app.renderer.admin_entry_new({"c":c}) @app.post("admin/entry/create") def admin_entry_create(): c.entry = Entry(**app.req.input) c.errors = c.entry.validate() if c.errors: return admin_entry_new(c) app.db.insert(c.entry) app.session = "Entry added." app.res.redirect(app.url.admin_index())if not os.path.exists(DB_FILE): db = app.ext.database.create_new_session() db.autocommit = True try: db.execute(""" CREATE TABLE entries ( id INTEGER PRIMARY KEY NOT NULL, title TEXT, body TEXT, created_at TIMESTAMP); """ ) db.execute(DatabaseSessionStore.SCHEMA) db.execute(DatabaseSessionStore.INDEX) finally: db.close()if __name__ == "__main__": app.serve_forever() File TypeProduct's homepage

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