I need to create some functionality in our SharePoint app that populates a list or lists with some simple hierarchical data. Each parent record will represent a "submission" and each child record will be a "submission item." There's a 1-to-n relationship between submissions and submission items. Is this practical to do in SharePoint? The only types of list relationships I've done so far are lookup columns, but this seems a bit different. Also, once such a list relationship is established, then what's the best way to create views on this kind of data. I'm almost convinced that it'd be easier just to write this stuff to an external database, but I'd like to give SharePoint a shot in order to take advantage of the automated search capabilities.
Proper Parent/Child in Sharepoint is near impossible without developing it yourself. There is one approach to that here: Simulate Parent / Child relationship in SharePoint 2007 with Folders & Content Types
(Note: This concerns SharePoint 2007. In 2010, Joins make this much easier)
Do it in a separate database, create a page(s) with controls that surfaces the data and run search over that. Loses quite a bit of the SharePoint features though.
Otherwise it may be okay to create a custom field control that will allow you to lookup the data in the other list.
The custom field control can be the one to "view" the related data.
I know we have done it for parent child relationships between pages on the same list. Not 1-to-N though.
Tough choice either way.
My vote is "to write this stuff to an external database"
You miss a lot of things in Sharepoint things like transaction support, referential integrity, easy way of updating (compare SQL), reporting (using Reporting Services and a SQL database)... see sharepoint as a way to store documents and simple lists.....
The argument for Sharepoint is if it is a small application, no requirements on support for transactions, no need to import external data etc...
When people say Sharepoint is a development plattform there is a need to define whjat they think a development plattform is.
The latest rumours about Sharepoint 2010 tells us that there will be support for SQL server based lists in next version ..... which I think will at least move Sharepoint in the right direction ....
Take a look at SLAM, SharePoint List Association Manager, an open source project my company created and actively supports. SLAM allows you to synchronize SharePoint data to SQL, including any relationships between lists. SLAM, in addition to being very useful on its own, is really a framework intended to allow developers to create their own complex data associations using what we call SLAM type profiles. We have one out-of-the-box type profile which is part of the open source project which actually allows you to make a SharePoint list hierarchical using the nested set model. For more information, see this page on our codeplex site.
I do this a lot just using sharepoint, using a framework called AAA (Activity,Assignment,Artifact), which allows you to use lookup columns to link an assignment or artifact to a parent Activity. You then build a web part page with connected web parts that allow you to filter all assignments and artifacts by activity. For example, click next to a submission in the submission web part, and all of the submission items attached to that submission will show up. Works great.
The other approach that you can look at using is persisting XML with a field in the item. This is the approach used by the Podcasting Kit (on CodePlex) to store things like ratings.
One possible method is to create a submission content type based on the folder content type and a submission-item based on item content type. Then you can store data hierarchically like in file system and also will work default views and search functionality.
Other way is to create lookup field that points to same list (list=”self”). This field will be used like reference to parent item and you will get list that contains recursively related data. To use this data programmatically will be ok but using views functionality will be little bit complex.
It's easy to do using a connected web part.
Create two lists:
Parent (Id, Title)
Child (Id, Title, ParentId)
Create a new sharepoint page, add DataFormWebPart (displaying Parent) and another one for Child, set both of them to filter based on a QueryString parameter (use that Parameter to filter Parent.Id, and Child.ParentId) voila, you can display parent-child relationships. Now, adding children is more difficult, and that's the part I haven't worked out yet.
Related
I am doing "traditional" lotus notes programming (same since R5) and need to implement linking between 2 document types (forms) residing in different databases.
Document of type (A) in database (A) can reference several documents of type (B) in database (B).
And document (B) should also display its relationships with document (A), as document (B) can be related to different documents (A).
We have Many to Many relationship.
At the moment it is implemented on one side only (one to many):
Form of Document (A) contains embedded view of special
"link" documents residing in database A. This link documents are created by lotusScript when user selects documents from database (B). When user clicks on an item in this embedded view, it opens document (B).
Client wants to be able to edit this relationship on any side, so that if he edits it in form (A), form (B) is updated.
Form (B) is supposed to have the same kind of embedded view or a list of associated documents of type (A)
What is the best way to implement it?
Client's infrastracture is Lotus Domino 8.5.2 + Lotus Notes 8.5.2, so theoretically, composite applications approach may be an option.
The reason why I ask this question is that as far as I understand there is no good way in Notes to embed a view from another database.
The requirement is that the database should be present on workspace to be displayed in some sort of dodgy list.
It would be great to be able to specify target database for embedded view by server and replicaID, but instead we have a weird list of random workspace databases.
The main problem is that Notes wasn't designed to handle relationships like that between databases (nor anything besides parent child relationships for that matter). So the solution will have to be a creative one.
A couple of (off-the wall, potentially awful) ideas come to mind. One is to store the references in the documents themselves, and update them whenever the document is saved. That could all be done in LotusScript, and would require searching through the other database's documents to update their references.
Upside is that the performance when reading the documents would be excellent. There'd be no issues while reading Database A if Database B was unavailable. It keeps data local to each database. The downsides include the likelihood of save conflicts and the danger that references could get out of sync if documents aren't "saved" but instead are updated via agents, etc.
Another thought is to use agents to manage the links on a scheduled basis. If you don't need real-time up-to-date references, you could run an agent that scans Database B and updates the references in Database A. With this method you could choose either to update the Database A documents themselves - or - as it sounds like you've already done, create a set of link documents that show up in an embedded view. The latter eliminates the save conflict problem.
One more idea is to hide any references when you open a document in Database A, but provide a button to "show" or "update" references. When you click that button, it fires off LotusScript to search Database B and build a list on the fly. This would probably work quickly with less than 10,000 documents. That function could update the link documents you store on the same database which feed the embedded view.
Hope this helps!
What is the best way to implement it?
As you mention creating a composite application may allow you to do this, but would be restricted to windows rather then design level in the form.
eg.
[Window A] --- trigger ---> [Window B]
If you are not familiar with this system I did a tutorial which explains the basics.
http://www-10.lotus.com/ldd/compappwiki.nsf/dx/ibm-my-first-wire
Although the tutorial calls back to the same database, it is easy enough to point to a different one.
Personally I'd do it through XPages. I personally find it much easier to implement then through classic style notes design/comp apps. It will also allow you to display design elements within the same screen area.
As you've already heard, Lotus Notes has no referential integrity constraints built-in, you have to do it yourself.
I wouldn't be relying on document links as they're geared around UNID's which can change if you cut and paste the same document, thus losing the link. Try this,
1/ Create an "ID" field on each document. You can populate it by using #Unique in a computed field to generate an ID, and save that to the documents in both databases. You can create an agent to do this in lotusScript (LS), or formula. (Consider using the evaluate statement if doing in LS)
2/ Create a lookup view in each database that lists the documents by the new ID (don't forget to set the "sort order" of the ID column.
3/ Using an action button that can be configured for both databases, you can create a LS function that will open the the opposing databases view and return the ID field. (NotesUIWorkspace.pickliststrings would be the simplest way to pick the documents, otherwise you could build a dialogbox. Store the list of results in a field called "linkedID" as multi-value list.
4/ There may be more info that you want to store like document title or author, so you'll need to then get a handle to those documents using getdocumentbykey and then interrogating the fields you'll need to display information on screen.
5/ You can then also add a new field on the target documents you're referring to, call it "referrerID", which is a list of documents that reference the current document. This will maintain the two-way relationship.
The field that stores links must be a multi-valued field, otherwise it gets quite cumbersome to loop through list of linked document ID's and manage them.
This approach uses a static key so you can copy databases around without losing the relationships between documents the user has invested time in producing. You can (and probably will) lose those relationships if you rely on document universal ID's (described well in the #documentUniqueID documentation), if you cut and paste the document, or copy the database somewhere else they become new documents despite copying the same fields, and will be assigned a new universal ID, any document links for the old document will be invalid.
If the information you're displaying from the other database changes, you'll need to be able to refresh that data regularly, so consider writing a scheduled agent that can do the look up and refresh the relevant fields.
If the user intends to un-link or change the relationships between documents, then you'll need to add functions that loop through the key fields and keep the lists consistent with what the user is doing. So, like I said, Lotus Notes' flat data structure requires you manage all integrity constraints yourself.
If you want to get a little fancy you can use embedded views as they do support references from another database on the same server. Some tips about handling it in LotusScript here. And use an additional view that categorises your data by the referring ID. Embedded views are ok, as long as the view they're based on is not too big, otherwise it may affect the performance of the form that it is embedded into.
I am using Visual Studio 2010, SharePoint 2010 with custom document content types and forms. And plan to also use jquery to build the document add/edit/view forms.
I am developing a solution where I want to have a document library where each document uploaded also has a number of external data elements added as metadata.
The tricky part I'm trying to figure out is I want the user to be able to specify and add a multiple number of those same external data elements.
I'm trying to figure out how I represent the data internally in SharePoint. My initial thought is to programmaticly add hidden external fields as the users adds those external selections. But then I also think of simply storing those external elements as non-external text fields but have my own code which performs the external data lookup and validation.
I'm not adverse to significant custom coding, as I'm probably going to need to do a lot anyway since even the user interface is going to be a jquery tabbed form to enable all the external data the user will be able to associate with each SP document.
I've made an attempt to hopefully further explain what I'm trying to do and included that image. Essentially I'm wanting to add 1+ external data relationships to each document, as desired by the user.
It uses just example data. I'll actually have 4-7 different complex relationships much like the example. And the user is permitted to drilldown and select 1, 2 or all 3 of the dropdowns.
Think of it as similar to how here on Experts-Exchange we can add multiple zones to a question.
An example illustration is here: http://flic.kr/p/aFUSJn
Could you simply add a multi-line text column and have the user input the metadata with comma's, then use your code to seperate the data and do what you want with it?
You said you were not adverse to significant custom coding :)
One solution is to use SharePoint content types. The trick is that not all items in a list need to have the same content type.
Therefore, you can do the following:
As the user is selecting the fields he wants to use you generate or select a content type that matchs those fields.
You then add your document to the document list using the content template
You then have all your information strongly typed in SharePoint lists.
We have previously built a system where we generate content types based on xsd files, this worked very well.
I've got a custom list with a custom content type. I'm aware that when you create a new item you can see a drop down for the different content types on that list which I assume all have their own NewForm.aspx somewhere. I can specify in the content type definition which columns are shown on the New form and that I can replace the new form with a custom one of my own design.
What I'm trying to achieve is to have multiple New forms but for the same content type listed on the New drop down. I would like each new form to expose different fields of the content type. Additionally I'd like to make particular New forms only visable by users with particular permissions although this isn't critical.
Scenario:
I've got a content type with all the fields I need for a risk assessment. When a new item is created it only exposes fields to enter contact details. Once this is created a workflow with infopath forms then drives the gathering of the rest of the risk assessment information through booking, the inspection itself and approval of the data. I want the ability to have a second option to easily enter all this information on a different new form for an inspection that's already been done and needs logging in the system.
You could customize the NewForm.aspx (e.g. via SharePoint Designer) for the initial submission case. Obviously, all of the required fields will need to be populated in some fashion.
The EditForm.aspx is the out-of-box page for updating existing list items. You may be able to customize this to meet your update an existing risk assessment case. From the post above it's not entirely clear to me whether this distinction between these pages is fully understood.
In both of these cases, you can add code-behind to the .aspx pages. However, it's usually best to start as simply as possible, keep it as simple as possible and only add complexity as necessary.
Hope this makes sense and helps. Good luck!
Dan,
Per your scenario, I have done something similar by creating one content type per actor/stage. Consider using a simple SharePoint Designer workflow to change your content types onChanged (simply by setting the Content Type) column so that the perspective actors only see the columns you want them to see in the edit/newforms. As long as the proper content type is set, your users will only see the fields you want them to see. Furthermore, with creative use of views and audience targetting of pages you can somewhat prevent these users from seeing columns.
Also, you can prevent users from seeing the different content types (under the new button) in the advanced content type page.
As a feed from external system we get a Catalog items (They are product info) as part of feed once a day. We need to take this feed and store in Sharepoint. Following are things we want to achive with this.
Need to search those items and show as part of standard search resutls.
There will be Insert (New Items) , updates and deletes to the items. In addtion to that catalog item will have metadata associated with it.
We would not be modifing any of that data in our system. it is just the display only.
I would like to know from the group what is the best way to store this in sharepoint and search on them.
I would agree with the suggestion of a timer job to do a perhaps nightly batch import and update of the sharepoint catalog. The catalog would be stored in a sharepoint list using a content type (set of fields) that you specify which will hold all the product related data for the catalog.
The BDC may well be your answer if it's compatible with the type of data you want to display and would be the easier cleaner option. However if it doesn't meet all your requirements, the above solution would be the most flexible route.
Give BDC (Business Data Catalog) a try. MOSS required.
If you don't have MOSS Enterprise, creating your own TimerJob that imports the Catalog info from this once a day into a list is also an option.
let me explain my current situation
i have a SharePoint site lets say it is MAIN, and a subsite lets call it SUBMAIN
in MAIN i have a list called "a" and in subMAIN i have a list called "b"
both lists have the exact same columns,
i need to show the content of both lists (ordered by modified date for example) in one webpart in the main page i know it is possible some how but couldnt get to it.
currently i am showing only the content of list "a" in a content query webpart (i have changed the way it display and added to it horizontal merquee) so it will be nice if somehow i can add contents of list"b" also to the same content query webpart (but if it is not possible in content query webpart its ok, at least let me know what other options do i have)
your help is appreciated
If you are using SharePoint Designer to do this, take a look at this blog.
If you are building your own web part, I would perform two queries on the SPList objects. You can then aggregate, sort, etc. the results however you would like. If you aren't familiar with SPList, you can look here for the MSDN overview.
I've built web parts to display items from 2 different lists, and I did something similar to what Scott Price suggested. I used an SPQuery object for each list and used it to get DataTable objects that I could then use with things like Repeaters and DataLists. You could merge your two tables and do something similar.
The biggest trick for me was setting up the custom templates for DataBinding in a webpart. To do that, I created a custom class that implemented the ITemplate interface and then emitted the HTML for each item from the template class in an event handler. Then, you just create an instance of your template class and set that as the ItemTemplate property of your, say, DataList.
This post and this one do a better job of explaining that approach, but the nice thing is that you have complete control of the markup, and you can style it as you like.
If you're not looking to code your own solution, you might consider this webpart on codeplex:
http://rssaggregator.codeplex.com/
It's actually an RSS aggregator, but since all SharePoint lists have built-in RSS feeds, you can use it just as well to aggregate the SharePoint lists from the different sites.
Another approach is SLAM, SharePoint List Association Manager, an open source project my company created and actively supports. SLAM will allow you to configure those two lists to be automatically synchronized to SQL tables at which point you can create a query to join the two. If you have the two lists built off a content type (since they have the same fields) you can actually slam the content type and have both lists in the same SQL table.