Class: Arel::Visitors::PostgreSQL
- Inherits:
-
Object
- Object
- Arel::Visitors::PostgreSQL
- Defined in:
- lib/arel_extensions/visitors/postgresql.rb
Constant Summary collapse
- DATE_MAPPING =
{ 'd' => 'DAY', 'm' => 'MONTH', 'w' => 'WEEK', 'y' => 'YEAR', 'wd' => 'DOW', 'h' => 'HOUR', 'mn' => 'MINUTE', 's' => 'SECOND' }.freeze
- DATE_FORMAT_DIRECTIVES =
{ '%Y' => 'YYYY', '%C' => 'CC', '%y' => 'YY', '%m' => 'MM', '%B' => 'Month', '%^B' => 'MONTH', '%b' => 'Mon', '%^b' => 'MON', '%d' => 'DD', '%e' => 'FMDD', '%j' => 'DDD', '%w' => '', '%A' => 'Day', # day, weekday '%H' => 'HH24', '%k' => '', '%I' => 'HH', '%l' => '', '%P' => 'am', '%p' => 'AM', # hours '%M' => 'MI', '%S' => 'SS', '%L' => 'MS', '%N' => 'US', '%z' => 'tz', # seconds, subseconds '%%' => '%', }.freeze
- NUMBER_COMMA_MAPPING =
{ 'en_US' => '.,', 'fr_FR' => ',', 'sv_SE' => ', ' }.freeze
Instance Method Summary collapse
- #visit_Aggregate_For_AggregateFunction(o, collector) ⇒ Object
- #visit_Arel_Attributes_Attribute(o, collector) ⇒ Object
- #visit_Arel_Nodes_As(o, collector) ⇒ Object
- #visit_Arel_Nodes_NotRegexp(o, collector) ⇒ Object
- #visit_Arel_Nodes_Regexp(o, collector) ⇒ Object
- #visit_Arel_Nodes_SelectStatement(o, collector) ⇒ Object
- #visit_Arel_Nodes_TableAlias(o, collector) ⇒ Object
- #visit_ArelExtensions_Nodes_AiIMatches(o, collector) ⇒ Object
- #visit_ArelExtensions_Nodes_AiMatches(o, collector) ⇒ Object
- #visit_ArelExtensions_Nodes_Cast(o, collector) ⇒ Object
- #visit_ArelExtensions_Nodes_Collate(o, collector) ⇒ Object
- #visit_ArelExtensions_Nodes_Concat(o, collector) ⇒ Object
- #visit_ArelExtensions_Nodes_DateAdd(o, collector) ⇒ Object
- #visit_ArelExtensions_Nodes_DateDiff(o, collector) ⇒ Object
- #visit_ArelExtensions_Nodes_Duration(o, collector) ⇒ Object
- #visit_ArelExtensions_Nodes_Format(o, collector) ⇒ Object
- #visit_ArelExtensions_Nodes_FormattedNumber(o, collector) ⇒ Object
- #visit_ArelExtensions_Nodes_GroupConcat(o, collector) ⇒ Object
- #visit_ArelExtensions_Nodes_IsNotNull(o, collector) ⇒ Object
- #visit_ArelExtensions_Nodes_IsNull(o, collector) ⇒ Object
- #visit_ArelExtensions_Nodes_Json(o, collector) ⇒ Object
- #visit_ArelExtensions_Nodes_JsonGet(o, collector) ⇒ Object
- #visit_ArelExtensions_Nodes_JsonGroup(o, collector) ⇒ Object
- #visit_ArelExtensions_Nodes_JsonMerge(o, collector) ⇒ Object
- #visit_ArelExtensions_Nodes_JsonSet(o, collector) ⇒ Object
- #visit_ArelExtensions_Nodes_Locate(o, collector) ⇒ Object
- #visit_ArelExtensions_Nodes_Log10(o, collector) ⇒ Object
- #visit_ArelExtensions_Nodes_Ltrim(o, collector) ⇒ Object
- #visit_ArelExtensions_Nodes_Power(o, collector) ⇒ Object
- #visit_ArelExtensions_Nodes_Rand(o, collector) ⇒ Object
- #visit_ArelExtensions_Nodes_RegexpReplace(o, collector) ⇒ Object
- #visit_ArelExtensions_Nodes_Repeat(o, collector) ⇒ Object
- #visit_ArelExtensions_Nodes_Rtrim(o, collector) ⇒ Object
- #visit_ArelExtensions_Nodes_SMatches(o, collector) ⇒ Object
- #visit_ArelExtensions_Nodes_Std(o, collector) ⇒ Object
- #visit_ArelExtensions_Nodes_Substring(o, collector) ⇒ Object
- #visit_ArelExtensions_Nodes_Sum(o, collector) ⇒ Object
- #visit_ArelExtensions_Nodes_Trim(o, collector) ⇒ Object
- #visit_ArelExtensions_Nodes_Variance(o, collector) ⇒ Object
- #visit_ArelExtensions_Nodes_Wday(o, collector) ⇒ Object
Instance Method Details
#visit_Aggregate_For_AggregateFunction(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 101 def visit_Aggregate_For_AggregateFunction o, collector if !o.order.blank? || !o.group.blank? collector << " OVER (" if !o.group.blank? collector << " PARTITION BY " o.group.each_with_index do |group, i| collector << COMMA if i != 0 visit group, collector end end if !o.order.blank? collector << " ORDER BY " o.order.each_with_index do |order, i| collector << COMMA if i != 0 visit order, collector end end collector << ")" end collector end |
#visit_Arel_Attributes_Attribute(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 483 def visit_Arel_Attributes_Attribute o, collector join_name = o.relation.table_alias || o.relation.name if join_name.length > 63 join_name = Arel.shorten(join_name) end collector << "#{quote_table_name join_name}.#{quote_column_name o.name}" end |
#visit_Arel_Nodes_As(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 81 def visit_Arel_Nodes_As o, collector if o.left.is_a?(Arel::Nodes::Binary) collector << '(' collector = visit o.left, collector collector << ')' else collector = visit o.left, collector end collector << " AS " # sometimes these values are already quoted, if they are, don't double quote it quote = o.right.is_a?(Arel::Nodes::SqlLiteral) && o.right[0] != '"' && o.right[-1] != '"' collector << '"' if quote collector = visit o.right, collector collector << '"' if quote collector end |
#visit_Arel_Nodes_NotRegexp(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 63 def visit_Arel_Nodes_NotRegexp o, collector collector = visit o.left, collector collector << " !~ " collector = visit o.right, collector collector end |
#visit_Arel_Nodes_Regexp(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 55 def visit_Arel_Nodes_Regexp o, collector collector = visit o.left, collector collector << " ~ " collector = visit o.right, collector collector end |
#visit_Arel_Nodes_SelectStatement(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 465 def visit_Arel_Nodes_SelectStatement o, collector if !(collector.value.blank? || (collector.value.is_a?(Array) && collector.value[0].blank?)) && o.limit.blank? && o.offset.blank? o = o.dup o.orders = [] end old_visit_Arel_Nodes_SelectStatement(o,collector) end |
#visit_Arel_Nodes_TableAlias(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 475 def visit_Arel_Nodes_TableAlias o, collector if o.name.length > 63 o = Arel::Table.new(o.table_name).alias(Arel.shorten(o.name)) end old_visit_Arel_Nodes_TableAlias(o,collector) end |
#visit_ArelExtensions_Nodes_AiIMatches(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 219 def visit_ArelExtensions_Nodes_AiIMatches o, collector collector = visit o.left.ai_collate, collector collector << ' ILIKE ' collector = visit o.right.ai_collate, collector if o.escape collector << ' ESCAPE ' visit o.escape, collector else collector end end |
#visit_ArelExtensions_Nodes_AiMatches(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 207 def visit_ArelExtensions_Nodes_AiMatches o, collector collector = visit o.left.ai_collate, collector collector << ' LIKE ' collector = visit o.right.ai_collate, collector if o.escape collector << ' ESCAPE ' visit o.escape, collector else collector end end |
#visit_ArelExtensions_Nodes_Cast(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 373 def visit_ArelExtensions_Nodes_Cast o, collector as_attr = case o.as_attr when :string Arel::Nodes::SqlLiteral.new('varchar') when :text, :ntext Arel::Nodes::SqlLiteral.new('text') when :time Arel::Nodes::SqlLiteral.new('time') when :int collector << "CAST(CAST(" collector = visit o.left, collector collector << " AS numeric) AS int)" return collector when :number, :decimal, :float Arel::Nodes::SqlLiteral.new('numeric') when :datetime Arel::Nodes::SqlLiteral.new('timestamp with time zone') when :date Arel::Nodes::SqlLiteral.new('date') when :binary Arel::Nodes::SqlLiteral.new('binary') when :jsonb Arel::Nodes::SqlLiteral.new('jsonb') else Arel::Nodes::SqlLiteral.new(o.as_attr.to_s) end collector << "CAST(" collector = visit o.left, collector collector << " AS " collector = visit as_attr, collector collector << ")" collector end |
#visit_ArelExtensions_Nodes_Collate(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 243 def visit_ArelExtensions_Nodes_Collate o, collector if o.ai collector << "unaccent(" collector = visit o.expressions.first, collector collector << ")" elsif o.ci collector = visit o.expressions.first, collector else collector = visit o.expressions.first, collector end collector end |
#visit_ArelExtensions_Nodes_Concat(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 70 def visit_ArelExtensions_Nodes_Concat o, collector collector << '(' o.expressions.each_with_index { |arg, i| collector = visit arg, collector collector << ' || ' unless i == o.expressions.length - 1 } collector << ")" collector end |
#visit_ArelExtensions_Nodes_DateAdd(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 256 def visit_ArelExtensions_Nodes_DateAdd o, collector collector = visit o.left, collector collector << ' + ' # (o.right.value >= 0 ? ' + ' : ' - ') collector = visit o.postgresql_value(o.right), collector collector end |
#visit_ArelExtensions_Nodes_DateDiff(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 263 def visit_ArelExtensions_Nodes_DateDiff o, collector if o.right_node_type == :ruby_date || o.right_node_type == :ruby_time || o.right_node_type == :date || o.right_node_type == :datetime || o.right_node_type == :time collector << if o.left_node_type == :ruby_time || o.left_node_type == :datetime || o.left_node_type == :time "DATEDIFF('second', " else "DATEDIFF('day', " end collector = visit o.right, collector collector << (o.right_node_type == :date ? '::date' : '::timestamp') collector << COMMA collector = visit o.left, collector collector << (o.left_node_type == :date ? '::date' : '::timestamp') collector << ")" else collector << '(' collector = visit o.left, collector collector << ' - (' if o.right.is_a?(ArelExtensions::Nodes::Duration) o.right.with_interval = true end collector = visit o.right, collector collector << '))' end collector end |
#visit_ArelExtensions_Nodes_Duration(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 289 def visit_ArelExtensions_Nodes_Duration o, collector if o.with_interval interval = case o.left when 'd','m','y' 'DAY' when 'h','mn','s' 'SECOND' when /i\z/ collector << "(" collector = visit o.right, collector collector << ")" collector << " * (INTERVAL '1' #{DATE_MAPPING[o.left[0..-2]]})" return collector end end collector << "EXTRACT(#{DATE_MAPPING[o.left]} FROM CAST(" collector = visit o.right, collector collector << " AS TIMESTAMP WITH TIME ZONE))" collector << " * (INTERVAL '1' #{interval})" if interval && o.with_interval collector end |
#visit_ArelExtensions_Nodes_Format(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 175 def visit_ArelExtensions_Nodes_Format o, collector fmt = ArelExtensions::Visitors::strftime_to_format(o.iso_format, DATE_FORMAT_DIRECTIVES) collector << "TO_CHAR(" collector << '(' if o.time_zone collector = visit o.left, collector case o.time_zone when Hash src_tz, dst_tz = o.time_zone.first collector << ') AT TIME ZONE ' collector = visit Arel::Nodes.build_quoted(src_tz), collector collector << ' AT TIME ZONE ' collector = visit Arel::Nodes.build_quoted(dst_tz), collector when String collector << ') AT TIME ZONE ' collector = visit Arel::Nodes.build_quoted(o.time_zone), collector end collector << COMMA collector = visit Arel::Nodes.build_quoted(fmt), collector collector << ")" collector end |
#visit_ArelExtensions_Nodes_FormattedNumber(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 407 def visit_ArelExtensions_Nodes_FormattedNumber o, collector col = o.left.coalesce(0) comma = o.precision == 0 ? '' : (NUMBER_COMMA_MAPPING[o.locale][0] || '.') thousand_separator = NUMBER_COMMA_MAPPING[o.locale][1] || (NUMBER_COMMA_MAPPING[o.locale] ? '' : 'G') nines_after = (1..o.precision).map{'9'}.join('') nines_before = ("999#{thousand_separator}"*4+"990") sign = ArelExtensions::Nodes::Case.new.when(col<0). then('-'). else(o.flags.include?('+') ? '+' : (o.flags.include?(' ') ? ' ' : '')) sign_length = ArelExtensions::Nodes::Length.new([sign]) number = if o.scientific_notation ArelExtensions::Nodes::Concat.new([ Arel::Nodes::NamedFunction.new('TRIM',[ Arel::Nodes::NamedFunction.new('TO_CHAR',[ Arel.when(col.not_eq 0).then(col.abs/Arel::Nodes.build_quoted(10).pow(col.abs.log10.floor)).else(1), Arel::Nodes.build_quoted('FM'+nines_before+'"'+comma+'"V'+nines_after) ])]), o.type, Arel::Nodes::NamedFunction.new('TRIM',[ Arel::Nodes::NamedFunction.new('TO_CHAR',[ Arel.when(col.not_eq 0).then(col.abs.log10.floor).else(0), Arel::Nodes.build_quoted('FM'+nines_before) ])]) ]) else Arel::Nodes::NamedFunction.new('TRIM',[ Arel::Nodes::NamedFunction.new('TO_CHAR',[ Arel::Nodes.build_quoted(col.abs), Arel::Nodes.build_quoted('FM'+nines_before+'"'+comma+'"V'+nines_after) ])]) end repeated_char = (o.width == 0) ? Arel::Nodes.build_quoted('') : ArelExtensions::Nodes::Case.new(). when(Arel::Nodes.build_quoted(o.width).abs-(number.length+sign_length)>0). then(Arel::Nodes.build_quoted( o.flags.include?('-') ? ' ' : (o.flags.include?('0') ? '0' : ' ') ).repeat(Arel::Nodes.build_quoted(o.width).abs-(number.length+sign_length)) ). else('') before = (!o.flags.include?('0'))&&(!o.flags.include?('-')) ? repeated_char : '' middle = (o.flags.include?('0'))&&(!o.flags.include?('-')) ? repeated_char : '' after = o.flags.include?('-') ? repeated_char : '' full_number = ArelExtensions::Nodes::Concat.new([ before, sign, middle, number, after ]) collector = visit ArelExtensions::Nodes::Concat.new([Arel::Nodes.build_quoted(o.prefix),full_number,Arel::Nodes.build_quoted(o.suffix)]), collector collector end |
#visit_ArelExtensions_Nodes_GroupConcat(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 123 def visit_ArelExtensions_Nodes_GroupConcat o, collector collector << "array_to_string(array_agg(" collector = visit o.left, collector if o.order && !o.order.blank? collector << " ORDER BY" o.order.each_with_index do |order, i| collector << COMMA if i != 0 collector << " " visit order, collector end end collector << ")" o.order = nil visit_Aggregate_For_AggregateFunction o, collector collector << COMMA collector = if o.separator && o.separator != 'NULL' visit o.separator, collector else visit Arel::Nodes.build_quoted(','), collector end collector << ")" collector end |
#visit_ArelExtensions_Nodes_IsNotNull(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 352 def visit_ArelExtensions_Nodes_IsNotNull o, collector collector = visit o.expr, collector collector << ' IS NOT NULL' collector end |
#visit_ArelExtensions_Nodes_IsNull(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 346 def visit_ArelExtensions_Nodes_IsNull o, collector collector = visit o.expr, collector collector << ' IS NULL' collector end |
#visit_ArelExtensions_Nodes_Json(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 507 def visit_ArelExtensions_Nodes_Json o,collector case o.dict when Array collector << 'to_jsonb(array[' o.dict.each.with_index do |v,i| if i != 0 collector << Arel::Visitors::MySQL::COMMA end collector = visit v, collector end collector << '])' when Hash collector << 'jsonb_build_object(' o.dict.each.with_index do |(k,v),i| if i != 0 collector << Arel::Visitors::MySQL::COMMA end collector = visit k, collector collector << Arel::Visitors::MySQL::COMMA collector = visit v, collector end collector << ')' when String,Numeric,TrueClass,FalseClass collector = visit Arel::Nodes.build_quoted("#{o.dict}"), collector collector << '::jsonb' when NilClass collector << %Q['null'::jsonb] else collector = visit o.dict, collector collector << '::jsonb' end collector end |
#visit_ArelExtensions_Nodes_JsonGet(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 551 def visit_ArelExtensions_Nodes_JsonGet o,collector collector = visit o.dict, collector collector << ' ->> ' collector = visit o.key, collector collector end |
#visit_ArelExtensions_Nodes_JsonGroup(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 572 def visit_ArelExtensions_Nodes_JsonGroup o, collector if o.as_array collector << 'jsonb_agg(' collector = visit o.dict, collector collector << ')' else case o.dict when Hash o.dict.each.with_index do |(k,v),i| if i != 0 collector << ' || ' end collector << 'jsonb_object_agg(' collector = visit k, collector collector << Arel::Visitors::MySQL::COMMA collector = visit v, collector collector << ')' end else collector << 'jsonb_object_agg(' collector = visit o.dict, collector collector << ')' end end collector end |
#visit_ArelExtensions_Nodes_JsonMerge(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 541 def visit_ArelExtensions_Nodes_JsonMerge o,collector o.expressions.each.with_index do |v,i| if i != 0 collector << ' || ' end collector = visit v, collector end collector end |
#visit_ArelExtensions_Nodes_JsonSet(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 558 def visit_ArelExtensions_Nodes_JsonSet o,collector collector << 'jsonb_set(' collector = visit o.dict, collector collector << Arel::Visitors::MySQL::COMMA collector << 'array[' collector = visit o.key, collector collector << ']' collector << Arel::Visitors::MySQL::COMMA collector = visit o.value, collector collector << Arel::Visitors::MySQL::COMMA collector << 'true)' collector end |
#visit_ArelExtensions_Nodes_Locate(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 311 def visit_ArelExtensions_Nodes_Locate o, collector collector << "POSITION(" collector = visit o.right, collector collector << " IN " collector = visit o.left, collector collector << ")" collector end |
#visit_ArelExtensions_Nodes_Log10(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 43 def visit_ArelExtensions_Nodes_Log10 o, collector collector << "LOG(" o.expressions.each_with_index { |arg, i| collector << Arel::Visitors::ToSql::COMMA if i != 0 collector = visit arg, collector } collector << ")" collector end |
#visit_ArelExtensions_Nodes_Ltrim(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 157 def visit_ArelExtensions_Nodes_Ltrim o, collector collector << 'TRIM(LEADING ' collector = visit o.right, collector collector << " FROM " collector = visit o.left, collector collector << ")" collector end |
#visit_ArelExtensions_Nodes_Power(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 33 def visit_ArelExtensions_Nodes_Power o, collector collector << "POWER(" o.expressions.each_with_index { |arg, i| collector << Arel::Visitors::ToSql::COMMA if i != 0 collector = visit arg, collector } collector << ")" collector end |
#visit_ArelExtensions_Nodes_Rand(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 22 def visit_ArelExtensions_Nodes_Rand o, collector collector << "RANDOM(" if (o.left != nil && o.right != nil) collector = visit o.left, collector collector << COMMA collector = isit o.right, collector end collector << ")" collector end |
#visit_ArelExtensions_Nodes_RegexpReplace(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 330 def visit_ArelExtensions_Nodes_RegexpReplace o, collector collector << "REGEXP_REPLACE(" visit o.left, collector collector << Arel::Visitors::ToSql::COMMA tab = o.pattern.inspect+ 'g' # Make it always global pattern = tab.split('/')[1..-2].join('/') flags = tab.split('/')[-1] visit Arel::Nodes.build_quoted(pattern), collector collector << Arel::Visitors::ToSql::COMMA visit o.substitute, collector collector << Arel::Visitors::ToSql::COMMA visit Arel::Nodes.build_quoted(flags+"g"), collector collector << ")" collector end |
#visit_ArelExtensions_Nodes_Repeat(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 197 def visit_ArelExtensions_Nodes_Repeat o, collector collector << "REPEAT(" o.expressions.each_with_index { |arg, i| collector << Arel::Visitors::ToSql::COMMA if i != 0 collector = visit arg, collector } collector << ")" collector end |
#visit_ArelExtensions_Nodes_Rtrim(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 166 def visit_ArelExtensions_Nodes_Rtrim o, collector collector << 'TRIM(TRAILING ' collector = visit o.right, collector collector << " FROM " collector = visit o.left, collector collector << ")" collector end |
#visit_ArelExtensions_Nodes_SMatches(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 231 def visit_ArelExtensions_Nodes_SMatches o, collector collector = visit o.left, collector collector << ' LIKE ' collector = visit o.right, collector if o.escape collector << ' ESCAPE ' visit o.escape, collector else collector end end |
#visit_ArelExtensions_Nodes_Std(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 491 def visit_ArelExtensions_Nodes_Std o, collector collector << (o.unbiased_estimator ? "STDDEV_SAMP(" : "STDDEV_POP(") visit o.left, collector collector << ")" visit_Aggregate_For_AggregateFunction o, collector collector end |
#visit_ArelExtensions_Nodes_Substring(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 320 def visit_ArelExtensions_Nodes_Substring o, collector collector << "SUBSTR(" o.expressions.each_with_index { |arg, i| collector << COMMA if i != 0 collector = visit arg, collector } collector << ")" collector end |
#visit_ArelExtensions_Nodes_Sum(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 358 def visit_ArelExtensions_Nodes_Sum o, collector collector << "sum(" collector = visit o.expr, collector collector << ")" visit_Aggregate_For_AggregateFunction o, collector collector end |
#visit_ArelExtensions_Nodes_Trim(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 148 def visit_ArelExtensions_Nodes_Trim o, collector collector << 'TRIM(BOTH ' collector = visit o.right, collector collector << " FROM " collector = visit o.left, collector collector << ")" collector end |
#visit_ArelExtensions_Nodes_Variance(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 499 def visit_ArelExtensions_Nodes_Variance o, collector collector << (o.unbiased_estimator ? "VAR_SAMP(" : "VAR_POP(") visit o.left, collector collector << ")" visit_Aggregate_For_AggregateFunction o, collector collector end |
#visit_ArelExtensions_Nodes_Wday(o, collector) ⇒ Object
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# File 'lib/arel_extensions/visitors/postgresql.rb', line 366 def visit_ArelExtensions_Nodes_Wday o, collector collector << "EXRTACT(DOW, " collector = visit o.date, collector collector << ')' collector end |