85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
|
# File 'lib/acts_as_taggable_on/acts_as_taggable_on/core.rb', line 85
def tagged_with(tags, options = {})
tag_list = ActsAsTaggableOn::TagList.from(tags)
empty_result = where("1 = 0")
return empty_result if tag_list.empty?
joins = []
conditions = []
having = []
select_clause = []
order_by = []
context = options.delete(:on)
owned_by = options.delete(:owned_by)
alias_base_name = undecorated_table_name.gsub('.','_')
quote = ActsAsTaggableOn::Tag.using_postgresql? ? '"' : ''
if options.delete(:exclude)
if options.delete(:wild)
tags_conditions = tag_list.map { |t| sanitize_sql(["#{ActsAsTaggableOn::Tag.table_name}.name #{like_operator} ? ESCAPE '!'", "%#{escape_like(t)}%"]) }.join(" OR ")
else
tags_conditions = tag_list.map { |t| sanitize_sql(["#{ActsAsTaggableOn::Tag.table_name}.name #{like_operator} ?", t]) }.join(" OR ")
end
conditions << "#{table_name}.#{primary_key} NOT IN (SELECT #{ActsAsTaggableOn::Tagging.table_name}.taggable_id FROM #{ActsAsTaggableOn::Tagging.table_name} JOIN #{ActsAsTaggableOn::Tag.table_name} ON #{ActsAsTaggableOn::Tagging.table_name}.tag_id = #{ActsAsTaggableOn::Tag.table_name}.#{ActsAsTaggableOn::Tag.primary_key} AND (#{tags_conditions}) WHERE #{ActsAsTaggableOn::Tagging.table_name}.taggable_type = #{quote_value(base_class.name, nil)})"
if owned_by
joins << "JOIN #{ActsAsTaggableOn::Tagging.table_name}" +
" ON #{ActsAsTaggableOn::Tagging.table_name}.taggable_id = #{quote}#{table_name}#{quote}.#{primary_key}" +
" AND #{ActsAsTaggableOn::Tagging.table_name}.taggable_type = #{quote_value(base_class.name, nil)}" +
" AND #{ActsAsTaggableOn::Tagging.table_name}.tagger_id = #{quote_value(owned_by.id, nil)}" +
" AND #{ActsAsTaggableOn::Tagging.table_name}.tagger_type = #{quote_value(owned_by.class.base_class.to_s, nil)}"
end
elsif options.delete(:any)
tags = if options.delete(:wild)
ActsAsTaggableOn::Tag.named_like_any(tag_list)
else
ActsAsTaggableOn::Tag.named_any(tag_list)
end
return empty_result unless tags.length > 0
taggings_context = context ? "_#{context}" : ''
taggings_alias = adjust_taggings_alias(
"#{alias_base_name[0..4]}#{taggings_context[0..6]}_taggings_#{sha_prefix(tags.map(&:name).join('_'))}"
)
tagging_join = "JOIN #{ActsAsTaggableOn::Tagging.table_name} #{taggings_alias}" +
" ON #{taggings_alias}.taggable_id = #{quote}#{table_name}#{quote}.#{primary_key}" +
" AND #{taggings_alias}.taggable_type = #{quote_value(base_class.name, nil)}"
tagging_join << " AND " + sanitize_sql(["#{taggings_alias}.context = ?", context.to_s]) if context
conditions << tags.map { |t| "#{taggings_alias}.tag_id = #{quote_value(t.id, nil)}" }.join(" OR ")
select_clause = " #{table_name}.*" unless context and tag_types.one?
if owned_by
tagging_join << " AND " +
sanitize_sql([
"#{taggings_alias}.tagger_id = ? AND #{taggings_alias}.tagger_type = ?",
owned_by.id,
owned_by.class.base_class.to_s
])
end
joins << tagging_join
else
tags = ActsAsTaggableOn::Tag.named_any(tag_list)
return empty_result unless tags.length == tag_list.length
tags.each do |tag|
taggings_alias = adjust_taggings_alias("#{alias_base_name[0..11]}_taggings_#{sha_prefix(tag.name)}")
tagging_join = "JOIN #{ActsAsTaggableOn::Tagging.table_name} #{taggings_alias}" +
" ON #{taggings_alias}.taggable_id = #{quote}#{table_name}#{quote}.#{primary_key}" +
" AND #{taggings_alias}.taggable_type = #{quote_value(base_class.name, nil)}" +
" AND #{taggings_alias}.tag_id = #{quote_value(tag.id, nil)}"
tagging_join << " AND " + sanitize_sql(["#{taggings_alias}.context = ?", context.to_s]) if context
if owned_by
tagging_join << " AND " +
sanitize_sql([
"#{taggings_alias}.tagger_id = ? AND #{taggings_alias}.tagger_type = ?",
owned_by.id,
owned_by.class.base_class.to_s
])
end
joins << tagging_join
end
end
group = [] if options.delete(:order_by_matching_tag_count)
select_clause = "#{table_name}.*, COUNT(#{taggings_alias}.tag_id) AS #{taggings_alias}_count"
group_columns = ActsAsTaggableOn::Tag.using_postgresql? ? grouped_column_names_for(self) : "#{table_name}.#{primary_key}"
group = group_columns
order_by << "#{taggings_alias}_count DESC"
elsif options.delete(:match_all)
taggings_alias, _ = adjust_taggings_alias("#{alias_base_name}_taggings_group"), "#{alias_base_name}_tags_group"
joins << "LEFT OUTER JOIN #{ActsAsTaggableOn::Tagging.table_name} #{taggings_alias}" +
" ON #{taggings_alias}.taggable_id = #{quote}#{table_name}#{quote}.#{primary_key}" +
" AND #{taggings_alias}.taggable_type = #{quote_value(base_class.name, nil)}"
joins << " AND " + sanitize_sql(["#{taggings_alias}.context = ?", context.to_s]) if context
group_columns = ActsAsTaggableOn::Tag.using_postgresql? ? grouped_column_names_for(self) : "#{table_name}.#{primary_key}"
group = group_columns
having = "COUNT(#{taggings_alias}.taggable_id) = #{tags.size}"
end
order_by << options[:order] if options[:order].present?
request = select(select_clause).
joins(joins.join(" ")).
where(conditions.join(" AND ")).
group(group).
having(having).
order(order_by.join(", ")).
readonly(false)
((context and tag_types.one?) && options.delete(:any)) ? request : request.uniq
end
|