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@@ -65,6 +65,13 @@ to the data provider definition. type is one of "integer", "double", "string". |
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An example url is "Point?crs=epsg:4326&field=id:integer&field=name:string(20)&index=yes" |
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Since QGIS 3.4 when closing a project, the application shows a warning about potential data |
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loss if there are any non-empty memory layers present. If your memory layer should not |
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trigger such warning, it is possible to suppress that by setting the following custom variable: |
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.. code-block:: python |
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layer.setCustomProperty("skipMemoryLayersCheck", 1) |
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\subsection ogr OGR data provider (ogr) |
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Accesses data using the OGR drivers (http://www.gdal.org/ogr/ogr_formats.html). The url |
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@@ -124,6 +124,14 @@ typedef QSet<int> QgsAttributeIds; |
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* |
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* An example url is "Point?crs=epsg:4326&field=id:integer&field=name:string(20)&index=yes" |
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* |
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* Since QGIS 3.4 when closing a project, the application shows a warning about potential data |
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* loss if there are any non-empty memory layers present. If your memory layer should not |
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* trigger such warning, it is possible to suppress that by setting the following custom variable: |
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* \code{.py} |
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* layer.setCustomProperty("skipMemoryLayersCheck", 1) |
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* \endcode |
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* |
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* |
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* \subsection ogr OGR data provider (ogr) |
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* |
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* Accesses data using the OGR drivers (http://www.gdal.org/ogr/ogr_formats.html). The url |
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