XSD for XML with all unique node names - xsd

My XML file looks something like this:
<Fields>
<Humanities>
<Performing_Arts>
<Dance />
<Music />
</Performing_Arts>
<Visual_Arts>
<Painting />
<Sculptue />
</Visual_Arts>
</Humanities>
<Social_Sciences>
<Psychology>
<Cultural_Psychology />
<Social_Psychology />
</Psychology>
</Social_Sciences>
</Fields>
I want to write an XML Schema, for this file, so that no two nodes, irrespective of location in the file can have duplicate names.
Any node in this file should be allowed to have unlimited child nodes, to any sub-level.
How might I achieve this goal?

skaffman is quite right, you needto enclose your values as either attributes or elements, if you are unsure, w3 schools hasa great tutorial on this;
http://www.w3schools.com/xml/xml_elements.asp
http://www.w3schools.com/xml/xml_attributes.asp

An example of a possible xml representation of your data might be:
<fields>
<department name="Humanities">
<subject name="Peforming Arts">
<topic name="Dance"/>
<topic name="Music"/>
</subject>
<subject name="Visual Arts">
<topic name="Painting"/>
<topic name="Sculpture"/>
</subject>
</department>
<department name="Social Sciences">
<subject name="Psychology">
<topic name="Cultural Psychology"/>
<topic name="Social Psychology"/>
</subject>
</department>
</fields>
Notes:
You can see that this is roughly equivalent to a database with three tables: department, subject and topic, with FK relationships between the parent and children. This is really what XML encapsulates, but in text form, and is the sort of thing to bear in mind while you design your layout.
I've used all lower-case names for elements and attributes. This is a personal thing as xsl/xpath as case sensitive, so making everything lowercase avoids the opporyunity for horrid bugs later

Related

How to develope list in sharepoint online by code

We want to create lists in our tenant on developer site. We want do develope it in our developer site and than deploy on client side using package (maybe sppkg).
We tried to create lists in visual studio 2017 using Sharepoint Add-in and in Visual studio code by using SPFX framework, with tutorials based on microsoft spfx documentation link - https://learn.microsoft.com/en-us/sharepoint/dev/spfx/web-parts/get-started/provision-sp-assets-from-package.
<?xml version="1.0" encoding="utf-8"?>
<Elements xmlns="http://schemas.microsoft.com/sharepoint/">
<Field ID="{060E50AC-E9C1-4D3C-B1F9-DE0BCAC300F6}"
Name="SPFxAmount"
DisplayName="Amount"
Type="Currency"
Decimals="2"
Min="0"
Required="FALSE"
Group="SPFx Columns" />
<Field ID="{943E7530-5E2B-4C02-8259-CCD93A9ECB18}"
Name="SPFxCostCenter"
DisplayName="Cost Center"
Type="Choice"
Required="FALSE"
Group="SPFx Columns">
<CHOICES>
<CHOICE>Administration</CHOICE>
<CHOICE>Information</CHOICE>
<CHOICE>Facilities</CHOICE>
<CHOICE>Operations</CHOICE>
<CHOICE>Sales</CHOICE>
<CHOICE>Marketing</CHOICE>
</CHOICES>
</Field>
<ContentType ID="0x010042D0C1C200A14B6887742B6344675C8B"
Name="Cost Center"
Group="SPFx Content Types"
Description="Sample content types from web part solution">
<FieldRefs>
<FieldRef ID="{060E50AC-E9C1-4D3C-B1F9-DE0BCAC300F6}" />
<FieldRef ID="{943E7530-5E2B-4C02-8259-CCD93A9ECB18}" />
</FieldRefs>
</ContentType>
<ListInstance
CustomSchema="schema.xml"
FeatureId="00bfea71-de22-43b2-a848-c05709900100"
Title="SPFx List"
Description="SPFx List"
TemplateType="100"
Url="Lists/SPFxList">
</ListInstance>
</Elements>
With SPFX we created webpart and in code we created 2 lists in elemnts.xml and schema.xml. Than we had problem with some content type IDs. So our problem is to create list by code. Can anybody give us advice what and how is best option to develope these lists?
Etc this two simple lists
Employee -name,surename
Vacation -employee, numberOfDays
Unfortunately, documentation for the XML is a bit hard-to-find. Here is an overview of what I've learned thus far working with SPFx:
Fields
Let's start by creating some Fields. If you want to create a SharePoint list, Fields would represent the columns of the list. The basic outline of a Field is as follows (note that the #1 through #5 are for reference purposes only, and should not be included in any final code):
<Field
1 ID="{DAFF97CE-C27D-4D27-9863-4422526CC395}"
2 Name="EmployeeName"
3 DisplayName="Name"
4 Description="Column for the employee's first name."
5 Type="Text"
/>
ID: GUID (Globally Unique IDentifier) for the Field. You need to generate one. Use an online generator such as this one - make sure it is uppercase, with hyphens, and with braces (reference). Visual Studio has a generator built-in, if you are using it.
Name: The Internal Name for the Field. This is the name that exists "under the hood". If you interact with the Field programmatically, this is the name you would use.
DisplayName: The Display Name for the Field. This is the name that is shown in SharePoint. It is usually for presentation purposes only.
Description: A text description of the Field. Useful for remembering what a field is for, but not important otherwise.
Type: This is the important one. It defines what kind of column you will create. As you have likely seen when creating columns in the SharePoint web interface, there are a lot of different types, such as "Single line of text", "Date and time", "Person or group", "Calculated", etc. The Type attribute directly maps to these allowed choices.
Types
The hard part is figuring out what the allowed values for Type are. Thankfully, these are documented in the Field element specification. Scroll down to the row for Type.
Examine the documentation for whether there are other required or optional attributes based on the Type you selected. For example, for a Number type, you can have extra attributes Decimals, Min, and Max. Below, we can specify that for Number Of Days, you can only pick a whole number, cannot take less than 1 day off, and cannot take more than 30 days off.
<Field
ID="{B34A7173-5AB7-4ABC-812B-EF8D0386498F}"
Name="NumberOfDays"
DisplayName="Number of Days"
Description="The number of days employee will take off."
Type="Number"
Decimals="0"
Min="1"
Max="30"
/>
List Fields vs. Site Fields
Once you have created the Fields, you have a choice to make: Should these fields be List Columns or Site Columns?
Fields that are entered into a schema.xml will become List Columns; in other words, limited to that List.
Fields that are entered into elements.xml will become Site Columns.
Keep this choice in mind, and keep the Field definitions you created. We will come back to them.
Lists
Now let's create a List Schema. You will not (and should not) have to create this thing from scratch - look at and copy-and-paste the boilerplate below into your solution (again, numbers on the left are for reference purposes only):
<List xmlns:ows="Microsoft SharePoint"
1 BaseType="0"
Direction="$Resources:Direction;"
xmlns="http://schemas.microsoft.com/sharepoint/">
<MetaData>
<ContentTypes />
2 <Fields></Fields>
<Views>
<View BaseViewID="1"
Type="HTML"
WebPartZoneID="Main"
DisplayName="$Resources:core,objectiv_schema_mwsidcamlidC24;"
DefaultView="TRUE"
MobileView="TRUE"
MobileDefaultView="TRUE"
SetupPath="pages\viewpage.aspx"
ImageUrl="/_layouts/images/dlicon.png"
Url="AllItems.aspx">
<XslLink Default="TRUE">main.xsl</XslLink>
<JSLink>clienttemplates.js</JSLink>
<RowLimit Paged="TRUE">30</RowLimit>
<Toolbar Type="Standard" />
3 <ViewFields>
<FieldRef Name="<FIELD_1>" />
<FieldRef Name="<FIELD_2>" />
<FieldRef Name="<FIELD_3>" />
</ViewFields>
<Query>
<OrderBy>
<FieldRef Name="ID" />
</OrderBy>
</Query>
</View>
</Views>
<Forms>
<Form Type="DisplayForm"
Url="DispForm.aspx"
SetupPath="pages\form.aspx"
WebPartZoneID="Main" />
<Form Type="EditForm"
Url="EditForm.aspx"
SetupPath="pages\form.aspx"
WebPartZoneID="Main" />
<Form Type="NewForm"
Url="NewForm.aspx"
SetupPath="pages\form.aspx"
WebPartZoneID="Main" />
</Forms>
</MetaData>
</List>
BaseType: This represents the type of list you want to create. See this documentation for the allowed values. Generic List (the type you would create if you clicked "Add Custom List" or "Create List" in the SharePoint web interface) would be 0, and is probably most common. Another common option is Document Library, which would be 1.
Fields: If you have chosen to create your Fields as List Columns, this is where you would paste your Field definitions. Field definitions added here will be automatically created in the list, when the list is created. (If you want Site Columns, leave the Fields as-is, and save your Field definitions for later.)
<!-- ... -->
<ContentTypes />
<Fields>
<Field
ID="{DAFF97CE-C27D-4D27-9863-4422526CC395}"
Name="EmployeeName"
DisplayName="Name"
Description="Column for the employee's first name."
Type="Text"
/>
<Field
ID="{AA4D083E-1B32-4AF5-B572-DA06B3996A94}"
Name="EmployeeSurname"
DisplayName="Surname"
Description="Column for the employee's surname."
Type="Text"
/>
</Fields>
<Views>
<!-- ... -->
ViewFields: ViewFields define the columns that will be visible in the View in which it is associated. (Playing around with Views is a more advanced topic for another post.) For now, ensure that you have a FieldRef for each Field that you add to your list. Make sure to specify the Internal Name of each Field. (Always do this, regardless of whether you want List Columns or Site Columns.)
<!-- ... -->
<Toolbar Type="Standard" />
<ViewFields>
<FieldRef Name="EmployeeName" />
<FieldRef Name="EmployeeSurname" />
</ViewFields>
<Query>
<!-- ... -->
Now you have a List Schema which defines everything you need to know about a List.
Note: If you want multiple different lists, you must create multiple List Schema files. Just copy-and-paste the boilerplate schema, and add modifications in the same way as above.
Elements
Finally let's tie everything together. elements.xml is where you tell SPFx every item you want provisioned.
To create a list, you need a ListInstance element. Here is the documentation. Below is an example of an elements.xml file (once again, the numbers on the left are for reference only):
<?xml version="1.0" encoding="utf-8"?>
<Elements xmlns="http://schemas.microsoft.com/sharepoint/">
<ListInstance
1 CustomSchema="schema-employees.xml"
2 Description="List for employee name and surname."
3 FeatureId="00bfea71-de22-43b2-a848-c05709900100"
4 TemplateType="100"
5 Title="Employee Names"
6 Url="Lists/EmployeeNames"
/>
</Elements>
CustomSchema: Name of the List Schema file that we worked on earlier. In this case I have called it schema-employees.xml - you can name it whatever you like, just make sure the names match.
Description: A text description of the list. Not too important.
FeatureId: Recall that earlier in the List Schema we decided that we were making a Custom List with BaseType="0". A Custom List has a corresponding Feature ID, which must match the type of List created. See here for a list of feature IDs. Find the Feature Name for CustomList to double-check that the Feature IDs are the same. If you were provisioning another kind of list, such as a Document Library, you would have to come here to find the corresponding FeatureId.
Template Type: This is another part that must match the type of List created. See here for a list of template types. In this case, see that GenericList maps to a TemplateType of 100. A Document Library would be 101, etc.
Title: Visible title of the list, which will be shown in the Site Contents of a site. Not too important.
Url: This dictates the web URL where you will find this list. Usually, as you may have noticed while creating lists using the SharePoint web interface, Custom Lists are placed under /sites/YOUR_SITE/Lists/. The example above follows this convention, but you can set the URL to other values as well.
That's all for the ListInstance. Additionally, if you had decided to implement your Fields as Site Columns, elements.xml is where you would paste the Field definitions. Just make sure you paste the Fields before the ListInstance, because otherwise SharePoint will not know what Fields you are referring to (they would not have been created yet!).
<?xml version="1.0" encoding="utf-8"?>
<Elements xmlns="http://schemas.microsoft.com/sharepoint/">
<Field
ID="{DAFF97CE-C27D-4D27-9863-4422526CC395}"
Name="EmployeeName"
DisplayName="Name"
Description="Column for the employee's first name."
Type="Text"
/>
<Field
ID="{AA4D083E-1B32-4AF5-B572-DA06B3996A94}"
Name="EmployeeSurname"
DisplayName="Surname"
Description="Column for the employee's surname."
Type="Text"
/>
<ListInstance
CustomSchema="schema-employees.xml"
Description="List for employee name and surname."
FeatureId="00bfea71-de22-43b2-a848-c05709900100"
TemplateType="100"
Title="Employee Names"
Url="Lists/EmployeeNames"
/>
</Elements>
Having specified the elements.xml, we have successfully created an XML definition for the Lists we want to create!
A Final Note
Don't forget that in order for SPFx to know about the schema-employees.xml and elements.xml, you must include them as part of a Feature definition in the package-solution.json. This is addressed in the tutorial linked in the original question, but I wanted to make note of it anyway.
thank you a lot for perfect info, it's what we are looking for!
You recommend copy and paste list definition i VS (or other IDE). I would to ask you is there some way to design lists with person, lookup, compute and another "advanced" columns and download XML schema definition to copy and paste into VS because I need on the end package solution to sppkg? It's because I find this way to much faster than code all in VS.
Thank you.

Redefining data type in items.xml in Hybris

I had a datatype defined as follows in items.xml:
<attribute qualifier="daysOfWeek" type="java.lang.String">
<persistence type="property" />
</attribute>
To modify the data type to enumeration,I redefined it as follows:
<enumtype code="DaysOfWeek" autocreate="true" generate="true">
<value code="Monday" />
<value code="Tuesday" />
</enumtype>
<attribute qualifier="daysOfWeek" type="DaysOfWeek">
<persistence type="property" />
</attribute>
After updating the extension,I am getting SQLException.Is there anything wrong with this approach?
hybris doesn't support updates like this in a "running" system.
The reason is that hybris won't drop any db columns and recreate them as any data contained in there would be lost (plus its probably difficult to write this logic for multiple supported databases).
If you are in a development phase of your project, the easiest way to fix this is to initialize your system from scratch (i.e. it will drop the database and recreate it).
If you have a live system / production system, you would have to take another approach:
You would define a new attribute (different name!) with your enumeration type.
You would then probably update any code to use the new field.
You would also have to take care of data migration, i.e. write some scripts that transfer the old data (e.g. the String "Monday" to the new respective enum value).
Hope this helps!

Dynamics CRM 2013: Advanced Find FetchXML contains extra fields - why?

I have two (related) questions:
I am having a puzzling problem with the Advanced Find function. I set up the fields I require, both in the criteria and display section and then hit 'Download Fetchxml'. What I end up with is fields that I never asked for. For example, in my advanced find I asked for All Activities. I changed the results to show me only the Date Created, Activity Type, Subject and Regarding fields. The (truncated) generated fetchXML looks like this:
<fetch version="1.0" output-format="xml-platform" mapping="logical" distinct="false">
<entity name="activitypointer">
<attribute name="activitytypecode" />
<attribute name="subject" />
<attribute name="activityid" />
<attribute name="instancetypecode" />
<attribute name="community" />
<attribute name="createdon" />
<attribute name="regardingobjectid" />
<order attribute="subject" descending="false" />
Why have those extra columns been included? I didn't ask for the 'community' attribute anywhere, for example.
Second question:
What determines the output order of the fields? I ran the above fetchXML through Fetch Tester 3000 (saved my life - thank you!) and the output table bears no relation to the order of the attributes in the xml. This is true also when I use the fetchXML elsewhere.
Thanks in advance for your comments
The FetchXML returned by the button Download Fetch XML is generated internally and in some scenarios it returns extra columns (as you found), for example the primary key field of the entity is always added.
If you remove the additional attributes the FetchXML is still valid and can be executed.
Regarding the order, the tool you used (Fetch Tester 3000) display the fields inside the Table View ordered by their logicalname, inside Dynamics CRM the order of the attributes (subgrids and advanced find results) is defined using another XML definition known as LayoutXML

How to prevent self-referencing foreign key values in XSD schema?

My XML (simplified) is like this:
<Actions>
<Action Id="1">
</Action>
<Action Id="2">
<DoSomething>
<ActionRef ActionId="1" /> <!-- valid -->
</DoSomething>
</Action>
</Actions>
The ActionId attribute value references the Id attribute value of the Action element. I've already set up a foreign key constraint in the XSD, and it works correctly.
I want to prevent self-referencing values in the foreign field, like this:
<Actions>
<Action Id="1">
</Action>
<Action Id="2">
<DoSomething>
<ActionRef ActionId="2" /> <!-- invalid -->
</DoSomething>
</Action>
</Actions>
Of course, this can easily be done within the application that processes the XML, and I'll fall back on that if what I'm asking for isn't possible, but I'd much rather have this done automatically by the validation process.
I tried adding [not(#ActionId = ../#Id)] to the foreign key selector XPath query, but that isn't valid in that context (nor am I sure it's correct either). Other than that, I have no idea what else to try, and it doesn't look like many people on the internets even set up foreign key relationships in their XSDs, let alone prevent this kind of situation (I found nothing on this exact topic).
It cannot be done - the selector syntax for XSD constraints is very limited. Other alternatives may include Schematron, which should be reasonable to integrate assuming your runtime has access to an XSLT processor. The effort could pay off is you decide to add more validation rules separate from the code of the application that processes the XML.

xml schema for validating multiple xml files

Currently we have a set of related xml files(4 files) to represent a single entity.
One xml file may refer to an element in another xml file. How can we write the XSD for validating this scenario?
EG:
XMLFile1:
<Actors>
<Actor id="A1">
<Name>Name1</Name>
<Movies>
<Movie Id="M1" />
<Movie Id="M2" />
</Movies>
</Actor>
<Actor id="A2">
<Name>Name2</Name>
<Movies>
<Movie Id="M2" />
<Movie Id="M3" />
</Movies>
</Actor>
</Actors>
XMLFile2:
<Movies>
<Movie Id="M1">
<Name>Name1</Name>
</Movie>
<Movie Id="M2">
<Name>Movie2</Name>
</Movie>
</Movies>
Now in the two examples, Actor id="A2" refers to movie Movie id="M3" which doesn't exist.
how do we validate the cross references between the two files?
You need, with some external process (xpath, xslt...) collect the movies ids from xmlfile1, and generate an xml schema with an enum type (for instance) wich test ids in xmlfile2.

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