persistent

问题 I was writing debugging methods for my CherryPy application. The code in question was (very) basically equivalent to this: import cherrypy class Page: def index(self): try: self.body += 'okay' except AttributeError: self.body = 'okay' return self.body index.exposed = True cherrypy.quickstart(Page(), config='root.conf') I was surprised to notice that from request to request, the output of self.body grew. When I visited the page from one client, and then from another concurrently-open client,

问题 How to, for example, insert a new User into a database using Yesod application's models? Or is there a better way? I am dealing with scaffolded application. Now I created App instance and dont know how to perform requests using it. :i Extra data Extra = Extra {extraCopyright :: Data.Text.Internal.Text, extraAnalytics :: Maybe Data.Text.Internal.Text} -- Defined in `Settings let e = Extra "asdf" Nothing let c = AppConfig {appEnv = Development, appPort = 3000, appRoot = "/", appHost =

问题 How to, for example, insert a new User into a database using Yesod application's models? Or is there a better way? I am dealing with scaffolded application. Now I created App instance and dont know how to perform requests using it. :i Extra data Extra = Extra {extraCopyright :: Data.Text.Internal.Text, extraAnalytics :: Maybe Data.Text.Internal.Text} -- Defined in `Settings let e = Extra "asdf" Nothing let c = AppConfig {appEnv = Development, appPort = 3000, appRoot = "/", appHost =

问题 Couldn't figure out a way to put a bounty on my old question, so I'm reposting it because maybe it was a bug. Short version: I want a persistent header in a PhoneGap+JQM application that stays in-place (never moves) between page transitions like the footer can be designed to do. Long version: First off, I'm totally new to jQuery and JQM, so please point out any newb mistakes I've made. I'm trying to get a header that persists between different pages in the application. It would have to be

问题 I receive sometimes the following error: SQLSTATE[HY000] [14] unable to open database file I open the datebase by using new PDO("sqlite:database/datbase.db","","",array( PDO::ATTR_PERSISTENT => true )); everytime I want read or write data from or to the database. The open process is the following function: function opendatabase(){ try{ return new PDO("sqlite:database/database.db","","",array( PDO::ATTR_PERSISTENT => true )); }catch(PDOException $e){ logerror($e->getMessage(), "opendatabase");

问题 Are all immutable data structures in Scala persistent? If not, which of them are and which not? What are the behavioural characteristics of those which are persistent? Also, how do they compare to the persistent data structures in Clojure? 回答1: Scala's immutable data structures are all persistent, in the sense that the old value is maintained by an `update' operation. In fact, I do not know of a difference between immutable and persistent; for me the two terms are aliases. Two of Scala's 2.8

问题 This is a repost of my question before but because of too many edit's and I've simplified my examples, I thought it would be more clear if I create a new question instead of re-edit the questions multiple times. PROBLEM: UISwitch object somehow doesn't deallocate even when nothing has been done with it. PROJECT: There are only two view controllers. VC1 and VC2. VC1 has one button to present VC2. VC2 contains one button to dismiss itself and a property of a custom UISwitch , UILabel and a

问题 I've a WinForms application on wich i have to draw some lines between controls. These lines need to be persistent, so i override the form OnPaint() event. The problem is that, the re-draw of the lines aren't very smooth. I'm creating the graphics as follows: Graphics g; g = this.CreateGraphics(); g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias; g.FillRectangle(Brushes.White, this.ClientRectangle); And drawing the lines as follows: public void lineDraw(Control L1, Control L2

问题 What I did: I edited php.ini to include mysqli.allow_persistent = Off restarted php php_info -->> shows mysqli.allow_persistent = On I even tried: ini_set('mysqli.allow_persistent', "Off"); but php_info -->> still shows mysqli.allow_persistent = On Why and how to fix this? 回答1: mysqli.allow_persistent actually expects an integer value, the default being 1 according to the documentation. This can be a bit confusing since mysql.allow_persistent (without the i) uses an On/Off toggle, and On/Off

问题 My understanding, all implementations of ClientConnectionManager persist connections base on route. This results in basically no persistent connections if a proxy is involved. For example, the HttpClient needs to visit 1000 different domains via a HTTP proxy with an fix IP, it has to establish at least 1000 connection to the proxy instead of creating 1 persistent connection to the proxy and reuse that for the 1000 requests. I'm simulating multiple users visiting thousands of domains (fake