It provides efficient Error – Document follows management features. It let you effectively manage your mailbox objects such as: mails, contacts, calendar events, and attachments etc. If some improper operation is performed on the database then it will bring the database to inconsistent state.
Whenever there is some kind of corruption in the file then, its data may turn unreadable and its structure can turn un-integrated or disturbed. The data transaction that couldn’t be committed successfully also leads an inconsistent data state. In such situation the database cannot be flushed properly or it may crash. The NSF database can also get corrupt due to a defect or system problem, the corruption can occur at any level . There can be various other reasons for Notes database corruption. Installed add-ons or software applications that can be conflicting with Notes. Some of the common situations are described below.
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You might not face any problem while accessing your archive files you can easily open and access your previously archived messages without any issue. The hindrance occurs when you try to archive documents to one of the archive files. If doing so resolves the issue. Deleting the corrupt file and let notes recreate it automatically. Lotus Domino database, Lotus Enterprise Integrator administrator creates special form and named activities. For successful accomplishment of the database transaction, the Lotus Enterprise Integrator must be correctly integrated with the Notes document.
If there is some issue in connecting LEI with Notes document due to reasons like corruption or something else, the activity cannot be executed correctly in such situation. In such situation you need to perform NSF file recovery. Lotus Notes provides inbuilt utilities for Lotus Notes database recovery. Create a new database and replace the corrupt one. If you have a backup copy of data before corruption occurred.
Then used that fresh data file instead of the corrupt file. Such software are enriched with various interactive features and powerful algorithms for efficient recovery of the corrupt NSF database. How to Back up Outlook 2011 for Mac? Your internet connection may be unreliable. For more information about the W3C website, see the Webmaster FAQ. Your internet connection may be unreliable.
For more information about the W3C website, see the Webmaster FAQ. It is recommended to also run gem install thin, which Sinatra will pick up if available. Routes In Sinatra, a route is an HTTP method paired with a URL-matching pattern. Routes are matched in the order they are defined.
The first route that matches the request is invoked. If you match an anchored pattern clap your hands! It looks like a condition, but it isn’t one! These options will be merged into the global :mustermann_opts hash described below.
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Return Values The return value of a route block determines at least the response body passed on to the HTTP client, or at least the next middleware in the Rack stack. Most commonly, this is a string, as in the above examples. But other values are also accepted. Custom Route Matchers As shown above, Sinatra ships with built-in support for using String patterns and regular expressions as route matches. However, it does not stop there.
Static Files Static files are served from the . Note that the public directory name is not included in the URL. Templates Each template language is exposed via its own rendering method. Options passed to the render method override options set via set.
List of locals passed to the document. String encoding to use if uncertain. Views folder to load templates from. You must use a symbol because otherwise rendering methods will render any strings passed to them directly.
Liquid template, you almost always want to pass locals to it. It is not possible to call methods from Markdown, nor to pass locals to it. Since you cannot call Ruby from Markdown, you cannot use layouts written in Markdown. However, it is possible to use another rendering engine for the template than for the layout by passing the :layout_engine option. It is not possible to call methods from Textile, nor to pass locals to it. Since you cannot call Ruby from Textile, you cannot use layouts written in Textile.
It is not possible to call methods from RDoc, nor to pass locals to it. Since you cannot call Ruby from RDoc, you cannot use layouts written in RDoc. Since you cannot call Ruby methods directly from a Radius template, you almost always want to pass locals to it. It is not possible to call methods from Creole, nor to pass locals to it.
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Since you cannot call Ruby from Creole, you cannot use layouts written in Creole. Since calling ruby methods is not idiomatic in WLang, you almost always want to pass locals to it. Layouts written in WLang and yield are supported, though. Accessing Variables in Templates Templates are evaluated within the same context as route handlers. This is typically used when rendering templates as partials from within other templates. Templates with yield and nested layouts A layout is usually just a template that calls yield. Currently, the following rendering methods accept a block: erb, haml, liquid, slim , wlang.
Also the general render method accepts a block. NOTE: Inline templates defined in the source file that requires sinatra are automatically loaded. Call enable :inline_templates explicitly if you have inline templates in other source files. Associating File Extensions To associate a file extension with a template engine, use Tilt.
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Filters Before filters are evaluated before each request within the same context as the routes will be and can modify the request and response. After filters are evaluated after each request within the same context as the routes will be and can also modify the request and response. Note: Unless you use the body method rather than just returning a String from the routes, the body will not yet be available in the after filter, since it is generated later on. Using Sessions A session is used to keep state during requests. Session Secret Security To improve security, the session data in the cookie is signed with a session secret using HMAC-SHA1. By default, a 32 byte secure random session secret is generated for you by Sinatra, but it will change with every restart of your application. If you have multiple instances of your application, and you let Sinatra generate the key, each instance would then have a different session key which is probably not what you want.
For better security and usability it’s recommended that you generate a secure random secret and store it in an environment variable on each host running your application so that all of your application instances will share the same secret. You should periodically rotate this session secret to a new value. This could take a while Successfully installed sysrandom-1. Set a SESSION_SECRET environment variable for Sinatra to the value you generated. Make this value persistent across reboots of your host.
Setup your app config to fail-safe to a secure random secret if the SESSION_SECRET environment variable is not available. To share your session across other apps on subdomains of foo. Choosing Your Own Session Middleware Note that enable :sessions actually stores all data in a cookie. It is important to note that when using this method, session based protection will not be enabled by default.
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Configuring attack protection’ for more information. The route block is immediately exited and control continues with the next matching route. If no matching route is found, a 404 is returned. Triggering Another Route Sometimes pass is not what you want, instead you would like to get the result of calling another route.
If you want the request to be sent to the same application instance rather than a duplicate, use call! Check out the Rack specification if you want to learn more about call. Setting Body, Status Code and Headers It is possible and recommended to set the status code and response body with the return value of the route block. However, in some scenarios you might want to set the body at an arbitrary point in the execution flow. You can do so with the body helper method.
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Like body, headers and status with no arguments can be used to access their current values. Streaming Responses Sometimes you want to start sending out data while still generating parts of the response body. In extreme examples, you want to keep sending data until the client closes the connection. It can also be used to increase throughput if some but not all content depends on a slow resource. Streaming does not work at all with Shotgun. If the optional parameter is set to keep_open, it will not call close on the stream object, allowing you to close it at any later point in the execution flow. It’s also possible for the client to close the connection when trying to write to the socket.
Because of this, it’s recommended to check out. This logger will automatically take your Rack handler’s logging settings into account. If logging is disabled, this method will return a dummy object, so you do not have to worry about it in your routes and filters. However, keep in mind that logger will in that case return nil. A common use case is when you want to set your own logger. Sinatra will use whatever it will find in env.
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Mime Types When using send_file or static files you may have mime types Sinatra doesn’t understand. It takes reverse proxies and Rack routers into account, if present. Cache Control Setting your headers correctly is the foundation for proper HTTP caching. Cache-Control header info to static files. File name to be used in the response, defaults to the real file name.
Value for Last-Modified header, defaults to the file’s mtime. Value for Content-Type header, guessed from the file extension if missing. Dealing with Date and Time Sinatra offers a time_for helper method that generates a Time object from the given value. This method is used internally by expires, last_modified and akin.
But it is useful that you can actually override this method to hook in your own lookup mechanism. You can also easily wrap this up in an extension and share with others! Note that find_template does not check if the file really exists but rather calls the given block for all possible paths. This is not a performance issue, since render will use break as soon as a file is found. You should keep that in mind if you write a really crazy method. Configuring attack protection Sinatra is using Rack::Protection to defend your application against common, opportunistic attacks.
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By default, Sinatra will only set up session based protection if :sessions have been enabled. Sinatra app, such as in the config. Enable if your app is running behind a reverse proxy that has not been set up properly. You can use predefined methods: development?
This is nowhere to be found. The exception object can be obtained from the sinatra. Rack Middleware Sinatra rides on Rack, a minimal standard interface for Ruby web frameworks. Rack is distributed with a variety of standard middleware for logging, debugging, URL routing, authentication, and session handling. Sinatra uses many of these components automatically based on configuration so you typically don’t have to use them explicitly. You can find useful middleware in rack, rack-contrib, or in the Rack wiki.