class Sequel::Postgres::JSONExistsOp
Object
representing json_exists calls
Attributes
expr[R]
Expression (context_item in PostgreSQL terms), usually JSONBaseOp
instance
on_error[R]
How to handle errors when evaluating the JSON path expression
passing[R]
Variables to set in the JSON path expression
path[R]
JSON path expression to apply against the expression
Public Class Methods
new(expr, path, opts=OPTS)
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See JSONBaseOp#exists
for documentation on the options.
# File lib/sequel/extensions/pg_json_ops.rb 906 def initialize(expr, path, opts=OPTS) 907 @expr = expr 908 @path = path 909 @passing = opts[:passing] 910 @on_error = opts[:on_error] 911 freeze 912 end
Public Instance Methods
sequel_ast_transform(transformer)
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Support transforming of function call expression
# File lib/sequel/extensions/pg_json_ops.rb 923 def sequel_ast_transform(transformer) 924 opts = {} 925 transform_opts(transformer, opts) 926 self.class.new(transformer.call(@expr), @path, opts) 927 end
to_s_append(ds, sql)
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