QGIS/resources/function_help/json/file_exists

{
  "name": "file_exists",
  "type": "function",
  "groups": ["Files and Paths"],
  "description": "Returns true if a file path exists.",
  "arguments": [{
    "arg": "path",
    "description": "a file path or a map layer value. If a map layer layer value is specified then the file source of the layer will be used."
  }],
  "examples": [{
    "expression": "file_exists('/home/qgis/data/country_boundaries.shp')",
    "returns": "true"
  }],
  "tags": ["path", "exists", "file"]
}
[FEATURE] Expression functions which return file info base_file_name: Returns the base name of the file without the directory or file suffix. file_exists: Returns true if a file exists file_name: Returns the file name from a full path file_path: Returns the directory/path from a full file path file_size: Returns a file size file_suffix: Returns a files suffix/extension is_directory: Returns true if a file path is a directory is_file: Returns true if a file path is a file 2019-04-27 10:03:55 +10:00			`{`
			`"name": "file_exists",`
			`"type": "function",`
Add groups to function_help files 2020-07-02 01:46:48 +01:00			`"groups": ["Files and Paths"],`
[FEATURE] Expression functions which return file info base_file_name: Returns the base name of the file without the directory or file suffix. file_exists: Returns true if a file exists file_name: Returns the file name from a full path file_path: Returns the directory/path from a full file path file_size: Returns a file size file_suffix: Returns a files suffix/extension is_directory: Returns true if a file path is a directory is_file: Returns true if a file path is a file 2019-04-27 10:03:55 +10:00			`"description": "Returns true if a file path exists.",`
proposal tags made with https://gist.github.com/roya0045/eaa19acabe1033569f97b40604b7e6df 2022-01-07 08:33:29 -05:00			`"arguments": [{`
			`"arg": "path",`
[expressions] Make file function (such as base_file_name) gracefully handle map layer values These are treated as the file path to the layer. E.g. base_file_name(@some_variable_which_is_a_layer) will return the base file name of the layer's source 2022-02-07 11:41:29 +10:00			`"description": "a file path or a map layer value. If a map layer layer value is specified then the file source of the layer will be used."`
proposal tags made with https://gist.github.com/roya0045/eaa19acabe1033569f97b40604b7e6df 2022-01-07 08:33:29 -05:00			`}],`
			`"examples": [{`
			`"expression": "file_exists('/home/qgis/data/country_boundaries.shp')",`
			`"returns": "true"`
			`}],`
			`"tags": ["path", "exists", "file"]`
[FEATURE] Expression functions which return file info base_file_name: Returns the base name of the file without the directory or file suffix. file_exists: Returns true if a file exists file_name: Returns the file name from a full path file_path: Returns the directory/path from a full file path file_size: Returns a file size file_suffix: Returns a files suffix/extension is_directory: Returns true if a file path is a directory is_file: Returns true if a file path is a file 2019-04-27 10:03:55 +10:00			`}`