How to Compare feature class in Model Builder?

LeandroBenicio_de_Souza1

HI, I'm trying  to compare the feature classe in 2 geodatabase, and make an APPEND if the name is the same. I'm trying with WHILE but not work correct. How can I do it?

Compare.png

curtvprice

If then is tricky with ModelBuilder.

I think the most straightforward way to do this is to do the compare with a Python function inside a Calculate Value tool. Have your function return 1 or 0 and make the returned value a precondition to your append operation.

expression

test_same<SPAN class="punctuation token">(</SPAN>r<SPAN class="string token">"%Featureclass1%"</SPAN><SPAN class="punctuation token">,</SPAN> r<SPAN class="string token">"%Featureclass2%"</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="line-numbers-rows"><SPAN>‍</SPAN></SPAN>

code block

<SPAN class="keyword token">def</SPAN> <SPAN class="token function">test_same</SPAN><SPAN class="punctuation token">(</SPAN>fc1<SPAN class="punctuation token">,</SPAN> fc2<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">:</SPAN>
&nbsp; nm1 <SPAN class="operator token">=</SPAN> arcpy<SPAN class="punctuation token">.</SPAN>Describe<SPAN class="punctuation token">(</SPAN>fc1<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">.</SPAN>name<SPAN class="punctuation token">.</SPAN>lower<SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN>
&nbsp; nm2 <SPAN class="operator token">=</SPAN> arcpy<SPAN class="punctuation token">.</SPAN>Describe<SPAN class="punctuation token">(</SPAN>fc2<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">.</SPAN>name<SPAN class="punctuation token">.</SPAN>lower<SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN>
&nbsp; <SPAN class="keyword token">if</SPAN> nm1 <SPAN class="operator token">==</SPAN> nm2<SPAN class="punctuation token">:</SPAN>
&nbsp;&nbsp;&nbsp; <SPAN class="keyword token">return</SPAN> <SPAN class="number token">1</SPAN>
&nbsp; <SPAN class="keyword token">else</SPAN><SPAN class="punctuation token">:</SPAN>
&nbsp;&nbsp;&nbsp; <SPAN class="keyword token">return</SPAN> <SPAN class="number token">0</SPAN><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>