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Accepts a hash of SQL conditions and replaces those attributes that correspond to a #composed_of relationship with their expanded aggregate attribute values.
Given:
class Person < ActiveRecord::Base
composed_of :address, class_name: "Address",
mapping: [%w(address_street street), %w(address_city city)]
end
Then:
{ address: Address.new("813 abc st.", "chicago") }
# => { address_street: "813 abc st.", address_city: "chicago" }
# File activerecord/lib/active_record/sanitization.rb, line 87 def expand_hash_conditions_for_aggregates(attrs) # :doc: expanded_attrs = {} attrs.each do |attr, value| if aggregation = reflect_on_aggregation(attr.to_sym) mapping = aggregation.mapping mapping.each do |field_attr, aggregate_attr| if mapping.size == 1 && !value.respond_to?(aggregate_attr) expanded_attrs[field_attr] = value else expanded_attrs[field_attr] = value.send(aggregate_attr) end end else expanded_attrs[attr] = value end end expanded_attrs end
Accepts an array of conditions. The array has each value sanitized and interpolated into the SQL statement.
sanitize_sql_array(["name=? and group_id=?", "foo'bar", 4])
# => "name='foo''bar' and group_id=4"
sanitize_sql_array(["name=:name and group_id=:group_id", name: "foo'bar", group_id: 4])
# => "name='foo''bar' and group_id=4"
sanitize_sql_array(["name='%s' and group_id='%s'", "foo'bar", 4])
# => "name='foo''bar' and group_id='4'"
# File activerecord/lib/active_record/sanitization.rb, line 148 def sanitize_sql_array(ary) # :doc: statement, *values = ary if values.first.is_a?(Hash) && /:\w+/.match?(statement) replace_named_bind_variables(statement, values.first) elsif statement.include?("?") replace_bind_variables(statement, values) elsif statement.blank? statement else statement % values.collect { |value| connection.quote_string(value.to_s) } end end
Accepts an array, hash, or string of SQL conditions and sanitizes them into a valid SQL fragment for a SET clause.
sanitize_sql_for_assignment(["name=? and group_id=?", nil, 4])
# => "name=NULL and group_id=4"
sanitize_sql_for_assignment(["name=:name and group_id=:group_id", name: nil, group_id: 4])
# => "name=NULL and group_id=4"
Post.send(:sanitize_sql_for_assignment, { name: nil, group_id: 4 })
# => "`posts`.`name` = NULL, `posts`.`group_id` = 4"
sanitize_sql_for_assignment("name=NULL and group_id='4'")
# => "name=NULL and group_id='4'"
# File activerecord/lib/active_record/sanitization.rb, line 48 def sanitize_sql_for_assignment(assignments, default_table_name = table_name) # :doc: case assignments when Array; sanitize_sql_array(assignments) when Hash; sanitize_sql_hash_for_assignment(assignments, default_table_name) else assignments end end
Accepts an array or string of SQL conditions and sanitizes them into a valid SQL fragment for a WHERE clause.
sanitize_sql_for_conditions(["name=? and group_id=?", "foo'bar", 4])
# => "name='foo''bar' and group_id=4"
sanitize_sql_for_conditions(["name=:name and group_id=:group_id", name: "foo'bar", group_id: 4])
# => "name='foo''bar' and group_id='4'"
sanitize_sql_for_conditions(["name='%s' and group_id='%s'", "foo'bar", 4])
# => "name='foo''bar' and group_id='4'"
sanitize_sql_for_conditions("name='foo''bar' and group_id='4'")
# => "name='foo''bar' and group_id='4'"
Accepts an array, or string of SQL conditions and sanitizes them into a valid SQL fragment for an ORDER clause.
sanitize_sql_for_order(["field(id, ?)", [1,3,2]])
# => "field(id, 1,3,2)"
sanitize_sql_for_order("id ASC")
# => "id ASC"
Sanitizes a hash of attribute/value pairs into SQL conditions for a SET clause.
sanitize_sql_hash_for_assignment({ status: nil, group_id: 1 }, "posts")
# => "`posts`.`status` = NULL, `posts`.`group_id` = 1"
# File activerecord/lib/active_record/sanitization.rb, line 110 def sanitize_sql_hash_for_assignment(attrs, table) # :doc: c = connection attrs.map do |attr, value| value = type_for_attribute(attr.to_s).serialize(value) "#{c.quote_table_name_for_assignment(table, attr)} = #{c.quote(value)}" end.join(", ") end
Sanitizes a string
so that it is safe to use within an SQL
LIKE statement. This method uses escape_character
to escape
all occurrences of “", ”_“ and ”%“.
sanitize_sql_like("100%")
# => "100\\%"
sanitize_sql_like("snake_cased_string")
# => "snake\\_cased\\_string"
sanitize_sql_like("100%", "!")
# => "100!%"
sanitize_sql_like("snake_cased_string", "!")
# => "snake!_cased!_string"