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Rob Watkins 369 posts 701 karma points

Oct 05, 2017 @ 09:51
0

Upgrading 4.11 to 7.7.2 - MultiNodePicker
I am upgrading an old 4.11 site, which uses the uComponents MultiNodePicker.

This does not carry across to the new version, so I selected the Umbraco.MultiNodeTreePicker (Obsolete) thinking that this would be the replacement.

Trouble is, it does not load the existing stored values into content.

I get the following error in the log:
```
2017-10-05 10:47:51,929 [P36824/D54/T78] WARN 
Umbraco.Web.Models.Mapping.PreValueDisplayResolver - Could not find
persisted pre-value for field values
```
The old values are persisted as XML, of course - does the new picker not load that? Is there any way around this - I have a lot of fields to migrate!
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Simon Dingley 1474 posts 3431 karma points c-trib

Oct 05, 2017 @ 10:44

0

I've done a fair few upgrades now and I make use of PhoenixConvertors for which I've had to develop some of my own but the project does have a Legacy MNTP to MNTP convertor out of the box which is what you will likely need to migrate the legacy data.

https://github.com/imulus/PhoenixConverters

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Rob Watkins 369 posts 701 karma points

Oct 05, 2017 @ 11:32

Hi Simon, thanks for that - I created a manual process in the end - her it is for anyone interested:

First, get affected nodes as XML:

select '<r id="' + cast(id as nvarchar(10)) + '">' + cast(dataNtext as nvarchar(max)) + '</r>' 
from cmsPropertyData where dataNtext like '%MultiNodePicker%'

Wrap the above in <root></root>.

Use an XSL tool to transform to an update statement:

    <xsl:stylesheet version="1.0"
    xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
    >
    <xsl:output method="text" indent="yes" />

    <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
        IDENTITY
        - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
    <xsl:template match="root">
    <root><xsl:apply-templates /></root>
    </xsl:template>

    <xsl:template match="r">
    update cmsPropertyData set dataNvarchar= '<xsl:apply-templates select="MultiNodePicker/nodeId" />' where id = <xsl:value-of select="@id" />
    </xsl:template>

    <xsl:template match="nodeId">
    <xsl:value-of select="." />
    <xsl:if test="count(following-sibling::nodeId) &gt; 0">,</xsl:if>
    </xsl:template>

    </xsl:stylesheet>

This should give you something like:

    update cmsPropertyData set dataNvarchar= '3026' where id = 50233
    update cmsPropertyData set dataNvarchar= '3027,3028' where id = 50234

NOTE 1: You may have to run the again for the cmsPropertyData.dataNvarchar field to get them all. NOTE 2: This is for the OBSOLETE node picker, but no reason you couldn't modify the SQL in the transform to get the guid for the new style storage.

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Rob Watkins 369 posts 701 karma points

Oct 05, 2017 @ 12:04

The above technique also works with the old MultiUrlPicker - use this transform to convert link info into plain html links separated by line breaks - modify for plain text / markdown or whatever.

    <xsl:stylesheet version="1.0"
    xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
    >
    <xsl:output method="text" indent="yes" />

    <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
        IDENTITY
        - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
    <xsl:template match="root">
    <root><xsl:apply-templates /></root>
    </xsl:template>

    <xsl:template match="r">
    update cmsPropertyData set dataNtext= <xsl:apply-templates select="multi-url-picker" /> where id = <xsl:value-of select="@id" />
    </xsl:template>

    <xsl:template match="multi-url-picker">
    <xsl:if test="count(url-picker) &lt;= 0">
    <xsl:text>''</xsl:text>
    </xsl:if>
     <xsl:apply-templates select="url-picker" />
    </xsl:template>

    <xsl:template match="url-picker">
    <xsl:text><![CDATA['<a href="]]></xsl:text>
    <xsl:value-of select="url" />
    <xsl:text>" title="</xsl:text>
    <xsl:value-of select="link-title"  />
    <xsl:text><![CDATA[">]]></xsl:text>
    <xsl:value-of select="link-title"  />
    <xsl:text><![CDATA[</a>']]></xsl:text>
    <xsl:if test="count(following-sibling::url-picker) &gt; 0"><xsl:text>+ CHAR(13) + CHAR(10) + </xsl:text></xsl:if>
    </xsl:template>

    </xsl:stylesheet>

NOTE: This only gets the link url and title as that's all I need; you can get target etc easily enough though.

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Upgrading 4.11 to 7.7.2 - MultiNodePicker