OrchardCMS Custom Forms and lookup fields - orchardcms

I can create custom form with Orchard Custom forms Module based on a Content Type.
Also i can add Enumerable field to the Content Type to show as combo box in created custom form.
But i can set list items of the enumerable field statically only.
How can i set this items based on result of a projection query or fill the combo box by any content items of a special content type dynamically?

You can't out of the box.
You could write your own module that provided a query driven combo field, but if you've not written a module before then you might want to start with writing a more simple field module first.
You might find the following useful:
Creating a custom field tutorial
I'd also look at the Orchard Source code for the projection module to see how they use queries.

Related

How to create cascading dropdownLists in orchard

I'm trying to create a dependency between fields in orchard.
I need to create cascading dropdownList in Orchard.
e.g : Country and State (for each Country a couple of states must be displayed not all the content).
How can I do that with Orchard.
I think, that you need make a choice from two options:
Create content type for Country and other content type for State (or may be one content type for Country and State). Then use Container and Containable part to create hierarchy (May be you should also use List module). Then override your field editor (you can use any field type, but i suggest you to use content picker field).
Use Taxonomy Module to create country-state hierarchy. Then use Taxonomy Field and override editor for it.

Orchard CMS: Content Item Get Field By Name in View

I have created a custom content type (via the admin UI) that consists mostly of text fields. I know how to position the fields using zones and Placement.info but for simplicity I would like to use a single view template and to just arrange the fields by name instead of having to use Placement.info. Is there a good way to reference the fields by name from the content item in my MVC view?
So for example, I have a template named Content-MyContentType-Detail.cshtml. Instead of the generic
#Display(Model.Content)
I would like to be able to do something like
#Display(...MyField...)
#Display(...MyOtherField...)
Is there a way to explicitly render a field by name that is associated with my content item?
You can use Shape Tracing module to view model properties and how to get access to content parts.
Then in your template you can use something like this:
<h3>#Model.ContentItem.TitlePart.Title - £#Model.ContentItem.Product.Fields[1].Value</h3>
<p>#Model.ContentItem.BodyPart.Text</p>
If you don't just want to access the field's properties, but rather would like its shape rendered in-place, but like it would be when using placement (i.e. using the existing template), then read this article, which describes how to do direct rendering without placement: http://weblogs.asp.net/bleroy/archive/2013/02/13/easy-content-templates-for-orchard-take-2.aspx

how to render custom layout of the projection of known content items

I have defined my own projection by a query which returns a set of content items of known content type. I would like to take pick up certain content parts of these content items and display them in the list. Using shape tracing tool I have found the view template where to write my custom layout:
/Views/Parts.ProjectionPart.cshtml
but from the Model variable in the template I can not get the data I want because it is way too high above from the content parts data.
a good example of what I want: let's say I want to render product catalog as defined in this tutorial:
http://skywalkersoftwaredevelopment.net/blog/writing-an-orchard-webshop-module-from-scratch-part-5
but I want only to render a list which consists from items:
name of the owner who created the product
name of the product.
publish date of the product
and I need to render it at one place, i.e., not separately in their own part views.
Have you tried adding a layout in the projector module? There is a properties mode option that lets you select which fields/data to show. If the data you want is not there, you should be able to implement an IPropertyProvider. There are examples of this in the Projections module code.

Web Part with a custom property bound to a "choice" field from a content type?

I'm trying to make a custom property for a WebPart. The custom property should be a drop down with choices coming from a "choice" column from a content type. Is that even possible?
You have two options:
1) If your choices will never change then you can hardcode an enum with these values and use that as datatype for your custom property. SP will the automatically generate a drop down.
2) If you can't hardcode the values then you have to implement what is called an EditorPart where you can code the UI for handling entry of the custom property
You cannot data bind directly to a content type column as it does not exist as in a bindable form, only as an XML secification on the content type itself.
Better to specify the column as a lookup and databind to the list directly. However, that is not going to work well when you only want one lookup across multiple webs or site collections.
In that case create a list in a config site such as http://intranet/sites/config and code a lookup control to databind to that list. Then use the control in the webpart and in a custom field control on the content type.
A bit of work, but worth it if you require SharePoint edit control (versioning, security etc) access to the contents of the lookup and a single (changeable) source of data across the entire site.

How to create a lookup column that targets a Doc Lib and uses the 'Name' of the document?

How do you create a lookup column to a Document Library that uses the 'Name' of the document as the lookup value?
I found a blog post that recommends adding another custom field like "FileName" and then using a item reciever to populate the custom field with the value from the Name field but that seems cheesy.
Link to the blog in case people are interested:
http://blogs.msdn.com/pranab/archive/2008/01/08/sharepoint-2007-moss-wss-issue-with-lookup-column-to-doc-lib-name-field.aspx
I've got a bunch of custom document content types that I dont want to clutter with a work around that should really work anyway.
I created a one step workflow to set the title from the name, fired on modify and created. Seems to work and took seconds to create.
One way you can do this (although not the easiest way) is by creating a custom field type that extends the SPFieldLookup class. SharePoint's field editor for Lookup fields purposefully hides any columns types that aren't supported by Lookup fields, but you can create a field editor for your custom field type that shows them.
However, I have created a Lookup column that points to a Name column in a Document Library before, and it probably doesn't work like you'd expect. While the value stored in the lookup column is valid, it doesn't show up right in List view or on the View Properties form.
The solution you posted may actually be the best way to handle this. Lookup fields require some kludges if you want to handle more complex scenarios, but that's because they're not meant to provide the same functionality as a foreign key relationship in a database.
Coding in any form always scares me. So Here's what I did: I simply renamed the Stupid "Title" Field to something else, say "Keywords", since you cant do anything with that field: cant even make it mandatory.
Then I created another Single line field called "Title" and used this field for the Lookups
Well there is a simple solution to that and in might work in some case.
In the nutshell if you make the Title field Mandatory, this will force the user to enter a title. In that manner we can use title field as a lookup field.
Now How to do that?
One you are done create a document library go to the library setting. Select Advance Setting and Select Yes for the option "Allow management of content types?".
Then go back to the Library setting and Under content types select the "Document" Content type. THen Select Title Column and then Select "Required (Must contain information)" and say OK.
Now try uploading a document to this document library. You will see Title field in the form.
Hope this helps
Cheers
Vaqar
You have to add the field as XML with the ShowField as 'FileLeafRef'
var XmlFieldDefinition = "<Field DisplayName='myLookupColumn' Type='LookupMulti' StaticName='myLookupColumn' Name='myLookupColumn' Required='FALSE' List='THE LOOKUP ID HERE' WebId='THE WEB ID HERE' UnlimitedLengthInDocumentLibrary='TRUE' Mult='TRUE' Sortable='FALSE' ShowField='FileLeafRef' />"
Field fld = fieldCollection.AddFieldAsXml(XmlFieldDefinition, true, AddFieldOptions.DefaultValue);
ClientContext.Load(fld);
ClientContext.ExecuteQuery();

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