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Nyall Dawson db1a1929a4 [FEATURE][expressions] Simplified variant of "attribute" function 
This adds a second variant for the existing "attribute" function.
The current function requires both a target feature and attribute
name to be specified, while the NEW variant just uses the current
feature.

E.g.

NEW:

attribute( 'name' ) -> returns the value stored in 'name' attribute
for the current feature

EXISTING:

attribute( @atlas_feature, 'name' ) -> returns value stored in 'name'
attribute for the current atlas feature

It's just a faster shorthand version!
2019-02-23 05:20:52 +10:00
..
$area
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$atlasfeature
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$atlasfeatureid
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$atlasgeometry
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$currentfeature
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$feature
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$geometry
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$id
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$length
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$map
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$numfeatures
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$numpages
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$page
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$perimeter
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$rownum
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$scale
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$x
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$x_at
Expression calculator: clarify documentation for x_at() and y_at()
2018-11-29 23:26:43 +13:00
$y
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$y_at
Expression calculator: clarify documentation for x_at() and y_at()
2018-11-29 23:26:43 +13:00
abs
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acos
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age
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aggregate
Update aggregate
2018-09-11 07:28:59 +10:00
Aggregates
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AND
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angle_at_vertex
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area
…
array
Update map and array examples
2018-08-24 14:04:27 +02:00
array_agg
[FEATURE] Add expression function array_agg
2017-08-12 10:18:21 +02:00
array_append
Update map and array examples
2018-08-24 14:04:27 +02:00
array_cat
Update map and array examples
2018-08-24 14:04:27 +02:00
array_contains
…
array_distinct
Update map and array examples
2018-08-24 14:04:27 +02:00
array_filter
Fix example display
2018-08-27 21:35:39 +10:00
array_find
…
array_first
array docs
2017-07-07 13:01:17 +02:00
array_foreach
Update map and array examples
2018-08-24 14:04:27 +02:00
array_get
…
array_insert
Update map and array examples
2018-08-24 14:04:27 +02:00
array_intersect
corrections
2018-05-14 15:13:22 +02:00
array_last
array docs
2017-07-07 13:01:17 +02:00
array_length
…
array_prepend
Update map and array examples
2018-08-24 14:04:27 +02:00
array_remove_all
Update map and array examples
2018-08-24 14:04:27 +02:00
array_remove_at
Update map and array examples
2018-08-24 14:04:27 +02:00
array_reverse
Update map and array examples
2018-08-24 14:04:27 +02:00
array_slice
Update map and array examples
2018-08-24 14:04:27 +02:00
array_sort
[FEATURE][expression] Brand new array_sort() function
2018-12-20 11:47:16 +07:00
array_to_string
Fix array_to_string description and add default value example
2018-08-24 11:54:34 +02:00
Arrays
Added new help files to the expression function groups of Arrays and Maps
2017-08-04 20:30:37 +02:00
asin
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atan
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atan2
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attribute
[FEATURE][expressions] Simplified variant of "attribute" function
2019-02-23 05:20:52 +10:00
azimuth
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boundary
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bounds
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bounds_height
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bounds_width
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buffer
add optional segments argument
2018-05-10 16:58:12 +02:00
buffer_by_m
[FEATURE] Add expression functions for tapered and variable
2018-05-01 06:16:01 +10:00
CASE
replace three dots with ellipsises in translation strings
2018-10-27 19:06:37 +02:00
ceil
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centroid
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char
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clamp
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closest_point
expression help: support optional parameters and defaults
2018-05-10 20:15:39 +02:00
coalesce
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collect
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Color
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color_cmyk
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color_cmyka
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color_grayscale_average
[FEATURE] color_grayscale_average() and color_mix_rgb() expression functions (#6554)
2018-03-07 11:59:52 +07:00
color_hsl
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color_hsla
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color_hsv
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color_hsva
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color_mix_rgb
fix translation strings
2018-03-09 21:47:49 +01:00
color_part
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color_rgb
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color_rgba
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combine
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concat
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concatenate
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Conditionals
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Conditions
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contains
first example deleted, cause it is for combine function
2018-11-30 07:39:57 +10:00
Conversions
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convex_hull
first example deleted, cause it is for combine function
2018-11-30 07:39:57 +10:00
cos
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count
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count_distinct
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count_missing
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create_ramp
[FEATURE] create_ramp() expression function
2017-05-29 16:31:53 +07:00
crosses
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current_value
Updated docs for current_value function
2018-05-15 12:45:43 +02:00
Custom
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darker
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Date and Time
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day
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day_of_week
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decode_uri
Double escape for JSON and C++
2018-12-18 17:04:50 +01:00
degrees
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difference
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disjoint
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distance
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distance_to_vertex
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end_point
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env
translation string fixes
2017-03-05 11:37:57 +01:00
epoch
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eval
replace three dots with ellipsises in translation strings
2018-10-27 19:06:37 +02:00
exp
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extend
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exterior_ring
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extrude
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Field
Replace "double click" and "doubleclick" by double-click
2017-07-07 01:26:38 +02:00
Fields and Values
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flip_coordinates
Add missing expression help
2018-04-05 06:35:13 +10:00
floor
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force_rhr
[FEATURE] force_rhr expression function
2018-11-09 19:06:48 +10:00
format
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format_date
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format_number
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from_json
Rename json functions to postgres names
2019-01-18 17:45:12 +07:00
Fuzzy Matching
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General
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generate_series
Merge branch 'master' into patch-2
2018-08-24 16:05:15 +02:00
geom_from_gml
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geom_from_wkt
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geom_to_wkt
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geometry
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geometry_n
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GeometryGroup
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get_feature
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get_feature_by_id
get_feature_by_id docs
2017-07-07 13:01:17 +02:00
hamming_distance
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hausdorff_distance
Typo corrected
2017-09-05 15:28:40 +02:00
hour
…
hstore_to_map
[FEATURE] hstore_to_map() / map_to_hstore() expression functions
2018-09-14 11:21:40 +07:00
if
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ILIKE
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IN
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inclination
add missing help for inclination
2017-08-01 21:48:03 +02:00
interior_ring_n
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intersection
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intersects
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intersects_bbox
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iqr
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IS
…
IS NOT
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is_closed
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is_layer_visible
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is_selected
…
item_variables
…
json_to_map
[FEATURE] json_to_map() / map_to_json() expression functions
2018-09-14 11:21:40 +07:00
layer_property
Add path to layer_property expression function
2018-12-18 13:47:46 +01:00
left
…
length
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levenshtein
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lighter
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LIKE
…
line_interpolate_angle
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line_interpolate_point
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line_locate_point
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line_merge
…
line_substring
[FEATURE] line_substring function
2018-08-15 14:01:59 +10:00
ln
…
log
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log10
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longest_common_substring
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lower
…
lpad
Update lpad and rpad functions description
2018-01-18 16:43:43 +10:00
m
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majority
…
make_circle
add missing optional flag in some qgs expression helps
2018-10-25 18:20:23 +10:00
make_ellipse
add missing optional flag in some qgs expression helps
2018-10-25 18:20:23 +10:00
make_line
…
make_point
add missing optional flag in some qgs expression helps
2018-10-25 18:20:23 +10:00
make_point_m
…
make_polygon
add some optional flags in make_polygon expression
2019-02-20 05:41:26 +10:00
make_rectangle_3points
[feature] Add expression for square by diagonal and rectangle from 3 points
2019-01-17 03:42:20 +11:00
make_regular_polygon
add missing optional flag in some qgs expression helps
2018-10-25 18:20:23 +10:00
make_square
[feature] Add expression for square by diagonal and rectangle from 3 points
2019-01-17 03:42:20 +11:00
make_triangle
Add missing make_triangle function help. Fix #16406
2018-02-23 14:32:43 +01:00
map
Update map and array examples
2018-08-24 14:04:27 +02:00
Map Layers
Add items for project map layers and relations to expression builder
2017-07-31 08:08:18 +10:00
map_akeys
Update map and array examples
2018-08-24 14:04:27 +02:00
map_avals
Update map and array examples
2018-08-24 14:04:27 +02:00
map_concat
Update map and array examples
2018-08-24 14:04:27 +02:00
map_delete
Update map and array examples
2018-08-24 14:04:27 +02:00
map_exist
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map_get
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map_insert
Update map and array examples
2018-08-24 14:04:27 +02:00
map_to_hstore
[FEATURE] hstore_to_map() / map_to_hstore() expression functions
2018-09-14 11:21:40 +07:00
map_to_json
[FEATURE] json_to_map() / map_to_json() expression functions
2018-09-14 11:21:40 +07:00
Maps
Added new help files to the expression function groups of Arrays and Maps
2017-08-04 20:30:37 +02:00
Math
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max
Add example with NULL value
2018-01-03 06:57:10 +01:00
max_length
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maximum
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mean
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median
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min
Add example with NULL value
2018-01-03 06:57:10 +01:00
min_length
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minimal_circle
add missing optional flag in some qgs expression helps
2018-10-25 18:20:23 +10:00
minimum
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minority
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minute
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month
…
nodes_to_points
add missing optional flag in some qgs expression helps
2018-10-25 18:20:23 +10:00
NOT
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now
Add note about now() being static to help
2018-08-25 13:52:33 +02:00
NULL
…
nullif
Fix JSON
2019-01-08 11:36:16 +01:00
num_geometries
corrections
2018-05-14 15:13:22 +02:00
num_interior_rings
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num_points
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num_rings
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num_selected
…
offset_curve
Spell check 'mitre' -> 'miter' (i.e. use en-us variation)
2017-08-07 18:08:57 +10:00
op_asterisk
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op_concat
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op_div
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op_eq
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op_exp
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op_ge
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op_gt
…
op_index
More square brackets
2018-12-19 05:21:49 +10:00
op_le
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op_lt
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op_minus
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op_modulo
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op_ne
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op_plus
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op_regex
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Operators
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OR
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order_parts
…
oriented_bbox
initial commit
2017-09-08 08:06:21 +02:00
overlaps
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parameter
Move algorithm expression context generation to QgsProcessingAlgorithm
2017-06-06 11:25:09 +10:00
perimeter
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pi
…
point_n
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point_on_surface
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pole_of_inaccessibility
…
project
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project_color
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q1
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q3
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radians
…
ramp_color
fix function call in example
2018-12-13 18:18:04 +02:00
rand
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randf
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range
…
raster_statistic
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raster_value
[FEATURE][expression] add raster_value() function (#7487)
2018-07-27 12:56:04 +07:00
Recent
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Record
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regexp_match
…
regexp_matches
Update map and array examples
2018-08-24 14:04:27 +02:00
regexp_replace
…
regexp_substr
…
relate
…
relation_aggregate
Update relation_aggregate
2018-09-11 07:28:59 +10:00
Relations
Add items for project map layers and relations to expression builder
2017-07-31 08:08:18 +10:00
replace
…
represent_value
Single parameter version of represent_value
2017-09-29 10:58:18 +02:00
reverse
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right
…
round
…
rpad
Update lpad and rpad functions description
2018-01-18 16:43:43 +10:00
scale_exp
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scale_linear
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second
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segments_to_lines
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set_color_part
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shortest_line
expression help: support optional parameters and defaults
2018-05-10 20:15:39 +02:00
simplify
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simplify_vw
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sin
…
single_sided_buffer
Spell check 'mitre' -> 'miter' (i.e. use en-us variation)
2017-08-07 18:08:57 +10:00
smooth
[needs-docs] geometry smooth algorithm now also retains and smooths z/m values
2018-03-30 08:59:00 +11:00
soundex
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sqlite_fetch_and_increment
Improve expression documentation for sqlite_fetch_and_increment
2019-01-11 10:53:17 +01:00
sqrt
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start_point
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stdev
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String
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string_to_array
Update map and array examples
2018-08-24 14:04:27 +02:00
strpos
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substr
fix substr help (fixes #21192)
2019-02-07 11:17:57 +01:00
sum
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sym_difference
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tan
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tapered_buffer
[FEATURE] Add expression functions for tapered and variable
2018-05-01 06:16:01 +10:00
title
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to_date
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to_datetime
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to_dm
[FEATURE] add conversion from float to DMS format
2018-09-14 05:18:38 +10:00
to_dms
[FEATURE] add conversion from float to DMS format
2018-09-14 05:18:38 +10:00
to_int
…
to_interval
…
to_json
Rename json functions to postgres names
2019-01-18 17:45:12 +07:00
to_real
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to_string
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to_time
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touches
…
transform
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translate
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trim
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try
[expression] Add try() function to provide a way to detect and handle
2019-02-20 06:27:43 +07:00
union
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upper
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uuid
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var
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Variables
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wedge_buffer
[FEATURE] Add wedge_buffer expression function
2018-04-24 10:07:51 +12:00
week
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with_variable
Used named parameters for with_variable function
2018-08-23 21:15:32 +10:00
within
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wordwrap
add missing optional flag in some qgs expression helps
2018-10-25 18:20:23 +10:00
x
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x_max
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x_min
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y
…
y_max
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y_min
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year
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z
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