Merger Line with attributes

Hi @danilo_inovacao,

Could you use the ListConcatenator (create comma separated values in the attributes) instead of the ListExploder?

The ListExploder will create multiple features (lines) and the ListConcatenator will not.

I agree with @erik_jan, you may want to avoid the ListExploder here.

For some use cases you may not want to concatenate all the suppliers, perhaps you just want one of them. In those cases you could e.g. use a ListSorter to "bubble" your preferred item to the top of the list and then use a ListIndexer to only keep that particular item.

Also a quick tip for the FeatureMerger: you don't have to create a separate join attribute if it's static, you can simply type something into the "Join on" fields, e.g. if usually just type "1" into both for an unconditional merge:

Hi @erik_jan and @david_r thanks to help me.

I removed the ListExploder and used the configuration on FeatureMerger 1:1 how the @david_r wrote.

After like @erik_jan wrote, i use the transformer ListConcatenator and my result is:

Now, how can i turn the attributes like the image bellow?

Thanks,

Danilo

Use the ListExploder like your original workspace. However, you will have to set "Use List Attribute Values" to the Conflict Resolution parameter, or set "Only Use List Attributes" to the Accumulation Mode parameter..

Hi @takashi, @TiaAtSafe, @david_r , @erik_jan

I created a image to describe:

Thanks,

Danilo

<table>
    <row>
        <column name="id" value="1" />
        <column name="name" value="vancouver" />
    </row>
    <row>
        <column name="id" value="2" />
        <column name="name" value="london" />
    </row>
    <row>
        <column name="id" value="3" />
        <column name="name" value="lima" />
    </row>
</table>

{
    "attributes" : [
        { "id" : 1, "name" : "vancouver" },
        { "id" : 2, "name" : "london" },
        { "id" : 3, "name" : "lima" }
    ]
}

Hi @danilo_inovacao, I'm afraid that no one can provide any specific solution unless you clarify how the destination feature should store the three pairs of id and name.

We have already suggested these different approaches so far.

• List: _list{}.id, _list{}.name
• Concatenated values: e.g. "ids"="1,2,3", "names"="vancouver,london,lima"
• Individual values: e.g. "id0"="1", "name0"="vancouver", "id1"="2", "name1"="london", "id2" = "3", "name2"="lima"
• XML
• JSON

In the items listed above, which is your desired data structure?

If your desired one has not been suggested yet, please explain specifically your requirement.

@danilo_inovacao

Almost.

But do a stringconcatenator first. id <space> nome <NewLine>

Then listbuilder

Then listconcatenator with no separator.

Weird...these best answers. None emulate the requested output.

The only solution to actually emulate desired output is to use a stringconcatenator before listbuilding and listconcatenating.

So the attribute looks like a table (albeit without cellborderlines...)