Webinar 11/25/2009

Macros in Kentico CMS

Martin Hejtmanek (CTO), [email protected]

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Topics

Macro types and syntax Localization macros Context (data) macros QueryString macros Cookie macros Custom macros Path macros Path expressions Macro parameters Macros as the web part properties When to use and not use macros and why

Macro types and syntax

 Syntax – {}  Type – Single character       $ = Localization % = Context (data) ? = QueryString value @ = Cookie value # = Custom macro ^ = Inline control (not covered today)  Optional parameters – {[]*}  Parameter – |()

Localization macros

 {$expression$} - ($ as string) 

Localization from resources

 {$General.Cancel$} ResHelper.GetString(“General.Cancel”)  In-place localization – {$=[]*$>  Translation - |=  {$=Hello|cs-cz=Ahoj|de-de=Hallo$} = switch (currentCulture) { case cs-cz: return “Ahoj”; case de-de: return “Hallo”; default: return Hello; }

Context (data) macros

 {%expression%} – (% as data value)   General context macros – [.]     Available when the given context object is available {%CurrentDocument.DocumentName%} – Current doc. name {%IP%} – Client IP address {%CurrentDateTime%} – Datetime.Now

 … Data context macros – [.]     Available only for specific modules or actions {%Path%} – Path property from the web part {%OrderStatus.StatusDisplayName%} – In the invoice …  No specific API code – Just get the desired data using API …

QueryString macros

 {?expression?} – (? as query) 

Available within the page request {?param1?}

Request.QueryString[“param1”]

Cookie macros

 {@expression@} – (@ as internet / cookie) 

Available within the page request {@CMSPreferredCulture@}

CookieHelper.GetValue(“CMSPreferredCulture”)

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Custom macros

{#expression#} - (# as C# or code)

Not processed by engine, processed by YOUR CODE!

 {#TimeToEndOfTheWorld#} ~/App_Code/Global/CMS/CMSCustom.cs

CMSCustom.ResolveCustomMacro(resolver, “TimeToEndOfTheWorld”, out bool match) public static string ResolveCustomMacro(MacroResolver sender, string expression, out bool match) { if (expression.ToLower() == "timetoendoftheworld“) { match = true; } return (new DateTime(2012,12,21).Subtract(DateTime.Now)).ToString(); } else { match = false; return expression; }

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Path macros

{&expression&} – (& as path)

Resolves AliasPath – See previous webinar

  {&./Teaser&} – Document named Teaser under current document {&/{1}/{3}&} – First and third level of current document path CMSContext.ResolveCurrentPath(“./Teaser”)

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Path expressions for macros

. = Current document path (only on beginning) .. = Parent document path (if on beginning, starts from current) {} = Specific part of current document path 

How to read the path expressions

 ./Teaser – “Teaser document under current document  ../Teaser – “Teaser document under the parent document  /Products/{1}/{2} – Document in products section matching the first two levels of current path  /Accessories/{1}/% - All accessories within the same main section as current product

Macro parameters

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|(name)value

  Culture, Format, Default, Encode, ToLower, ToBool, Equals, …

Full list in the documentation – Appendix A

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{?param1|(default)N/A?}

QueryString value of param1 or N/A if not available 

{%CurrentDocument.DocumentName|(encode)false%}

Current document name, never HTML encoded 

{%CurrentDocument.DocumentName|(encode)true%}

Current document name, always HTML encoded

Macros in web part properties

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All web part properties are resolved unless it is disabled

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Some of them may be excluded

 CMSAbstractWebPart.mNotResolveProperties = “;yourproperty1;yourproperty2;”;

Some of them may automatically escape SQL injection

 CMSAbstractWebPart.mSQLProperties = “;wherecondition;orderby;yourproperty;”;

Web part property can use data macro to use another property

 Text = Container title is {%ContainerTitle%} 

If you need to do some web part setting dynamic, use custom macro

When to use and not use macros

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Use macros in:

 Web part properties (even non-text ones)  E-mails and other templates  Anywhere where it is recommended in the documentation  In places where you need to set up something dynamically, it is easier to use macro than Copy – Paste – Change the web part 

Don’t use macros for:

   ASPX page templates Transformations Layouts  In places where you have direct access to the API, it is more efficient to query the objects directly

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Q&A

Now is the time for your questions  The webinar recording will be available on our new Partner portal and later on the DevNet.