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Blocks

Cache And Redirect

Introduction

This is meant to be used to cache a value from the query string and then forward the user to another page with the same query string parameter. Upon return to this same page containing the Cache And Redirect block without the specified query string parameter it will use the value stored in the cache and again redirect to the target page. If no value is supplied in the query string and no value is availabe in the cache then the user is redirected to another page that would, normally, be used to pick the value for the query string parameter.

Use Cases

You have a number of iPads or laptops for the public to use to sign up for various bits of information, groups, etc. But you do not know which device will end up at which table so you cannot hard code the home URL to the correct destination. You can instead create a Configure page that has buttons that link to the Cache page with the correct query string parameter defined. The Cache page will store this and send the user on to the Action page where they can do whatever you want them to do. When the action is finished they are sent back to the Cache page which will check the cache and send them back to the Action page with the correct query string parameter.

Configuration

Setup Page is the page that the user will be redirected to if there is currently no cached value and one was not specified in the query string.

Content Page is the page the user will be redirected to with the proper query string parameter, assuming we have a value in cache or have been given on in our own query string.

URL Key is the key that is expected on our query string (or loaded from cache) and passed to the Content Page.

Cache Time is the duration in minutes to keep the URL Key value in cache before it is expired. This is a rolling duration, meaning that each time the value is read from cache the expiration time is extended.

Session Unique is a boolean that indicates if you want this to be session specific or page (block) specific. If true then the cache entry will be unique to each user's session. If false then the cache entry will be shared by all user's visiting this page.

Block Key allows you to link multiple blocks on different pages together. If a value is entered here then all blocks using this same Block Key and URL Key will share the same cached value. Leave blank for unique cached values on each block.

Usage

The normal usage will be 3 pages.

  • Page A - this is the page where the user will select the initial cache key.
  • Page B - this is the page that contains this block.
  • Page C - this is the (initial) page that will peform whatever tasks you want the user to do.

Page A should link to Page B with the appropriate key specified in the query string. Page B will then link to Page C after storing the value in cache. Once Page C is done doing whatever it needs to do it links back to Page B, which then checks the cache and sends them back to Page C automatically. If it has been more than Cache Time minutes since it was last visited, causing the cached value to expire, then the user is sent to Page A instead.

Self Serve Search (Kiosk)

Introduction

Self Serve Search is meant to be used on a kiosk where you want the user to search for themselves (usually by phone number) the same way they would to check-in one of their kids. Instead of performing a particular action it simply redirects the user to your selected page with a query string parameter appending to the URL to identify the user (either by Id or Guid). This then allows you to chain to another module to perform the specific action you want to on that person.

Use Cases

You have a kiosk in your lobby where the user can give, update their record, etc. You also want them to be able to sign up for a mailing list without having to enter their username and password (or create a new account if they do not already have one). Use this module to let them search for themselves and pass their PersonId to the next page as a query string parameter. This allows you to identify the user without them to do a full login.

Sample Images

Search By Phone

Phone Search

Person Select

Person Select

Configuration

Cancel Page is the page to direct the user to if they click the cancel button.

Continue Page is the page to direct the user to if they sleect their person record.

Use Person GUID will pass the Person GUID rather than the ID number if set to true.

Query String Key is the key to use when passing the Person ID/GUID to the Continue Page.

Search Type is the type of search method to use, either Phone or Name.

Phone Search

Minimum Length is the minimum number of digits the user must enter to perform a search by phone number.

Maximum Length is the maximum number of digits the user may enter when performing a search by phone number.

Name Search

Minimum Length is the minimum number of letters the user must enter to perform a search by name.

File Browser

Introduction

Out of the box, Rock includes a really nice File Manager block for uploading and renaming files in your Content directory. But it doesn't work so well for allowing end users to browse those files and download them. The File Browser block adds support for doing this by simply having you point it to the location you want users to be able to browse files in.

Users will see all files in the specified directory as well as any sub-directories, which will allow the user to navigate into them.

Sample Images

The first sample is using the default "list style" view of the block which displays the results in a format users will probably be used to and instantly recognize it as a file browser. This is generated by the FileBrowserList.lava file.

List View

The second sample switched to the "button style" view of the block. This is designed to resemble the "pages as buttons" view of many of the Administrative pages in Rock. Users may not recognize it as a file browser right away but if you just need to display a few pretty buttons for users to click then this is the way to go. This is generated by the FileBrowserButtons.lava file.

Button View

Configuration

Content Root is the root folder to present to the user. They will see this as simply / so they will not be confused by extra parts of the path. This must be a path that is under your application root, so it must begin with ~/.

Lava Template is, you guessed it, the Lava that is used to generate your displayed content. To help you along there are a couple full lava files that you can simply {% include %} in your Lava. In fact the list-view style is in there by default. You do not need to use any of these pre-made files, you can create your own lava to completely customize the look if you want. But there is a lot you can do with some simple CSS overrides too!

Customization

If you decide to do some serious customization, there are a few Lava variables defined for you to make things easier.

Path is the user-friendly path they are currently browsing. For example this might be simply /Images if they are viewing the Images sub-directory.

ContentPath contains the URL friendly path they are currently browsing, meaning it is the path you can use in a hyperlink to get to the files. For example this might be /Content/Images.

BrowseJavascript is the method name to call to browse to a different directory. It is relative to the current directory, so to navigate to the parent directory pass .. to this method. To navigate to a sub-directory simpily pass the name of the sub-directory. The one exception to this rule is that if you pass / then it will be treated as a "go to root folder" request. When you call this method from an onclick handle be sure to return the value returned from the function (which is false) as this will cancel any default action, such as trying to navigate away from the page.

DownloadJavascript is the method name to call to initiate a download for the user. You can link directly to the files, as the Lava samples do, but if you wish to hide the real path you can use this method. The first argument is the filename (relative to the current directory) to download. So if you need to download the file Data.zip from the current directory they are viewing you would write something like onclick="return {{ DownloadJavascript }}('Data.zip');". You can optionally include a second argument of false to indicate that you don't wish the file to be force-downloaded but opened in the browser instead (only supported if the file type is known).

Directories contains the list of sub-directories. These are standard .NET DirectoryInfo objects and you can check Microsofts documentation for exactly what properties are available, or use the ToJSON filter to view them that way.

Files contains the list of files in this directory. These are standard .NET FileInfo objects and you can check Microsoft's documentation for exactly what properties are available, or use the ToJSON filter to view them that way.