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<p class="MsoNormal">Hi Andreas,</p>
<p class="MsoNormal">unfortunately I never used it in this way (with formulae) before: all the previous times I was simply adding empty fields or deleting useless ones.</p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">A further minor issue related to the alg: when selecting the field type, “double” and “data” are repeated twice.</p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">An improvement could be also adding the NULL value by default when a field is created. Does it make sense?</p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Should these notes be added to your issue or separated into other tickets?</p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">All the best,</p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Niccolò</p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="border:none;padding:0cm"><b>Da: </b><a href="mailto:a.neumann@carto.net">Andreas Neumann</a><br>
<b>Inviato: </b>giovedì 21 settembre 2017 00:34<br>
<b>A: </b><a href="mailto:sciurusurbanus@hotmail.it">Niccolò Marchi</a><br>
<b>Cc: </b><a href="mailto:qgis-developer@lists.osgeo.org">qgis-developer@lists.osgeo.org</a><br>
<b>Oggetto: </b>Re: [QGIS-Developer] refactor fields doesn't accept expressions</p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p><span style="font-size:10.0pt;font-family:"Verdana",sans-serif">Hi Niccolo,<o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Verdana",sans-serif">I ran into the exact same problem yesterday. I opened an issue:<o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Verdana",sans-serif"><a href="https://issues.qgis.org/issues/17170">https://issues.qgis.org/issues/17170</a><o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Verdana",sans-serif">Are you sure that this worked in earlier QGIS versions? It would help to know that.<o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Verdana",sans-serif">Andreas<o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Verdana",sans-serif">On 2017-09-21 00:58, Niccolò Marchi wrote:<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Verdana",sans-serif">Hi all,<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Verdana",sans-serif">I'm using 'refactor fields' in the modeler.<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Verdana",sans-serif"> <o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Verdana",sans-serif">Once I've loaded the fields from a shp and then added some new ones, I'm not able to add a formula (e.g. 'to_int(substr("MM_GG",
1,2))' ) to the latter ones because it's recognised as wrong in the Expression dialog. Furthermore, the Expression dialog doesn't recognise any field in the label 'Fields and values' and simply shows 'NULL'.<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Verdana",sans-serif">BTW, if I write the formula directly in the box without using the expression dialog and then run the model, it works
smoothly.<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Verdana",sans-serif">Are those intended behaviours?<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Verdana",sans-serif"> <o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Verdana",sans-serif">i just updated from 2.18.11 to .13 .<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Verdana",sans-serif"> <o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Verdana",sans-serif">all the best,<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Verdana",sans-serif"> <o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:10.0pt;font-family:"Verdana",sans-serif">Niccolò<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Verdana",sans-serif"><o:p> </o:p></span></p>
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<p><span style="font-size:10.0pt;font-family:"Verdana",sans-serif"><o:p> </o:p></span></p>
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