Class: Spider::Model::Storage::Db::Mysql

Inherits:
DbStorage show all
Defined in:
lib/spiderfw/model/storage/db/adapters/mysql.rb

Defined Under Namespace

Modules: MapperExtension

Class Attribute Summary collapse

Attributes inherited from BaseStorage

#instance_name, #url

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from DbStorage

#alter_table, #change_field, #collect_having_fields, #column_name, #create_index, #create_table, #drop_field, #drop_index, #drop_table, #dump, #foreign_key_name, #get_mapper, inherited, #initialize, #lock, #parse_db_column, #query, #query_finished, #query_start, #reflect_column, #safe_schema_conversion?, #schema_field_equal?, #sequence_name, #shorten_identifier, #sql_add_index, #sql_alter_table, #sql_change_field, #sql_condition, #sql_condition_value, #sql_delete, #sql_drop_field, #sql_drop_foreign_key, #sql_drop_index, #sql_drop_primary_key, #sql_drop_table, #sql_insert, #sql_joins, #sql_keys, #sql_limit, #sql_max, #sql_order, #sql_tables, #sql_tables_join, #sql_truncate, #sql_update, #sql_update_values, storage_type

Methods inherited from BaseStorage

#==, #commit, #commit!, #commit_or_continue, #connect, #connected?, #connection, connection_attributes, #connection_attributes, #connection_pool, connection_pools, #create_sequence, #curr, #generate_uuid, get_connection, #get_mapper, #in_transaction, inherited, #initialize, max_connections, release_connection, remove_connection, #rollback, #rollback!, #rollback_or_continue, #sequence_exists?, #sequence_file_path, #sequence_next, sequence_sync, #start_transaction, storage_type, #supports?, supports?, #supports_transactions?, #transactions_enabled?, #update_sequence, #value_for_condition, #value_for_save

Methods included from Logger

add, check_request_level, close, close_all, datetime_format, datetime_format=, #debug, debug, debug?, #debug?, enquire_loggers, #error, error, #error?, error?, fatal, #fatal, fatal?, #fatal?, info, #info, info?, #info?, #log, log, method_missing, open, reopen, request_level, send_to_loggers, set_request_level, unknown, #unknown, warn, #warn, warn?, #warn?

Constructor Details

This class inherits a constructor from Spider::Model::Storage::Db::DbStorage

Class Attribute Details

.field_flags ⇒ Object (readonly)

Returns the value of attribute field_flags.



74
75
76
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 74

def field_flags
  @field_flags
end

.field_types ⇒ Object (readonly)

Returns the value of attribute field_types.



74
75
76
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 74

def field_types
  @field_types
end

.reserved_kewords ⇒ Object (readonly)

Returns the value of attribute reserved_kewords.



74
75
76
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 74

def reserved_kewords
  @reserved_kewords
end

.safe_conversions ⇒ Object (readonly)

Returns the value of attribute safe_conversions.



74
75
76
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 74

def safe_conversions
  @safe_conversions
end

.type_synonyms ⇒ Object (readonly)

Returns the value of attribute type_synonyms.



74
75
76
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 74

def type_synonyms
  @type_synonyms
end

Class Method Details

.base_types ⇒ Object 



8
9
10
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 8

def self.base_types
    super << Spider::DataTypes::Binary
end

.connection_alive?(conn) ⇒ Boolean

Returns:

  • (Boolean) 


104
105
106
107
108
109
110
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 104

def self.connection_alive?(conn)
    begin
        return conn.ping
    rescue
        return false
    end 
end

.disconnect(conn) ⇒ Object 



83
84
85
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 83

def self.disconnect(conn)
    conn.close
end

.new_connection(host = nil, user = nil, passwd = nil, db = nil, port = nil, sock = nil, flag = 0) ⇒ Object 



76
77
78
79
80
81
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 76

def self.new_connection(host=nil, user=nil, passwd=nil, db=nil, port=nil, sock=nil, flag=0)
    conn = ::Mysql.new(host, user, passwd, db, port.to_i, sock, flag)
    conn.autocommit(true)
    conn.query("SET NAMES 'utf8'")
    return conn
end

.parse_url(url) ⇒ Object 



112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 112

def self.parse_url(url)
    # db:mysql://<username:password>@<host>:<port>/<database>
    if (url =~ /.+:\/\/(?:(.+):(.+)@)?(.+)?\/(.+)/)
        user = $1
        pass = $2
        location = $3
        db_name = $4
    else
        raise ArgumentError, "Mysql url '#{url}' is invalid"
    end
    if (location =~ /localhost:(\/.+)/)
        host = 'localhost'
        sock = $1
    else
        location =~ /(.+)(?::(\d+))/
        host = $1
        port = $2
    end
    return [host, user, pass, db_name, port, sock]
end

Instance Method Details

#column_attributes(type, attributes) ⇒ Object 



521
522
523
524
525
526
527
528
529
530
531
532
533
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 521

def column_attributes(type, attributes)
    db_attributes = super(type, attributes)
    case type.name
    when 'String'
        db_attributes[:length] = attributes[:length] || 255
    when 'Fixnum'
        db_attributes[:length] = 11
    when 'Spider::DataTypes::Text'
        db_attributes[:length] = nil
    end
    db_attributes[:autoincrement] = false if attributes[:autoincrement] && !attributes[:primary_key]
    return db_attributes
end

#column_type(type, attributes) ⇒ Object 



494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 494

def column_type(type, attributes)
    case type.name
    when 'String'
        'VARCHAR'
    when 'Spider::DataTypes::Text'
        return 'TEXT' if (attributes[:length].blank? || (!attributes[:length].blank? && attributes[:length] < 65536)) 
        return 'MEDIUMTEXT' if !attributes[:length].blank? && attributes[:length] >= 65536 && attributes[:length] < 16777216
        return 'LONGTEXT' if !attributes[:length].blank? && attributes[:length] >= 16777216
    when 'Fixnum'
        'INT'
    when 'Float'
        'FLOAT'
    when 'Date'
        'DATE'
    when 'DateTime'
        'DATETIME'
    when 'Time'
        'TIME'
    when 'Spider::DataTypes::Binary'
        'BLOB'
    when 'Spider::DataTypes::Bool'
        'TINYINT'
    when 'BigDecimal', 'Spider::DataTypes::Decimal'
        'DECIMAL'
    end
end

#configure(conf) ⇒ Object 



87
88
89
90
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 87

def configure(conf)
    super
    @configuration['default_engine'] ||= Spider.conf.get('db.mysql.default_engine')
end

#describe_table(table) ⇒ Object 



374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 374

def describe_table(table)
    columns = {}
    primary_keys = []
    foreign_keys = []
    order = []
    connection do |c|
        res = c.query("select * from #{table} where 1=0")
        fields = res.fetch_fields
        fields.each do |f|
            type =  self.class.field_types[f.type]
            length = f.length;
            length /= 3 if ['CHAR', 'VARCHAR'].include?(type)
            scale = nil
            precision = f.decimals
            # FIXME
            if (type == 'DECIMAL')
                scale = f.decimals
                precision = length - scale
                length = 0
            end
            col = {
                :type => type,
                :length => length,
                :precision => precision,
                :scale => scale
            }
            flags = f.flags
            self.class.field_flags.each do |flag_name, flag_val|
                col[flag_name] = (flags & flag_val == 0) ? false : true
            end
            columns[f.name] = col
            order << f.name
            primary_keys << f.name if f.is_pri_key?
        end                 
        res = c.query("select * from INFORMATION_SCHEMA.KEY_COLUMN_USAGE WHERE constraint_schema = '#{@db_name}' and table_name = '#{table}'")
        while h = res.fetch_hash
            fk_table = h['REFERENCED_TABLE_NAME']
            if fk_table
                fk_fields1 = h['COLUMN_NAME'].split(',')
                fk_fields2 = h['REFERENCED_COLUMN_NAME'].split(',')
                fk_name = h['CONSTRAINT_NAME']
                fk_fields = {}
                fk_fields1.each_index{ |i| fk_fields[fk_fields1[i]] = fk_fields2[i] }
                foreign_keys << ForeignKeyConstraint.new(fk_name, fk_table, fk_fields)
            end
        end
        
    end
    return {:columns => columns, :order => order, :primary_keys => primary_keys, :foreign_key_constraints => foreign_keys}
end

#do_commit ⇒ Object 



153
154
155
156
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 153

def do_commit
    curr[:conn].commit unless curr[:conn].blank?
    curr[:in_transaction] = false
end

#do_rollback ⇒ Object 



158
159
160
161
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 158

def do_rollback
    curr[:conn].rollback unless curr[:conn].blank?
    curr[:in_transaction] = false
end

#do_start_transaction ⇒ Object 



138
139
140
141
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 138

def do_start_transaction
    connection.autocommit(false)
    curr[:in_transaction] = true
end

#dump_table_data(table, stream) ⇒ Object 



447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 447

def dump_table_data(table, stream)
    connection do |c|
        res = c.query("select * from #{table}")
        num = res.num_rows
        if num > 0
            fields = res.fetch_fields
            stream << "INSERT INTO `#{table}` (#{fields.map{ |f| "`#{f.name}`"}.join(', ')})\n"
            stream << "VALUES\n"
            cnt = 0
            while row = res.fetch_row
                cnt += 1
                stream << "("
                fields.each_with_index do |f, i|
                    stream << dump_value(row[i], f)
                    stream << ", " if i < fields.length - 1
                end
                stream << ")"
                if cnt < num
                    stream << ",\n"
                else
                    stream << ";\n"
                end
            end
            stream << "\n\n"
        end
    end
end

#dump_value(val, field) ⇒ Object 



475
476
477
478
479
480
481
482
483
484
485
486
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 475

def dump_value(val, field)
    return 'NULL' if val.nil?
    type =  self.class.field_types[field.type]
    if ['CHAR', 'VARCHAR', 'BLOB', 'TINY_BLOB', 'MEDIUM_BLOB', 'LONG_BLOB'].include?(type)
        val = val.gsub("'", "''").gsub("\n", '\n').gsub("\r", '\r')
        return "'#{val}'"
    elsif ['DATE', 'TIME', 'DATETIME'].include?(type)
        return "'#{val}'"
    else
        return val.to_s
    end
end

#execute(sql, *bind_vars) ⇒ Object 



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
215
216
217
218
219
220
221
222
223
224
225
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 168

def execute(sql, *bind_vars)
    begin
        if (bind_vars && bind_vars.length > 0)
            debug_vars = bind_vars.map{|var| var = var.to_s; var && var.length > 50 ? var[0..50]+"...(#{var.length-50} chars more)" : var}
        end
        curr[:last_executed] = [sql, bind_vars]
        if (Spider.conf.get('storage.db.replace_debug_vars'))
            cnt = -1
            debug("mysql #{curr[:conn]} executing: "+sql.gsub('?'){ debug_vars[cnt+=1] })
        else
            debug_vars_str = debug_vars ? debug_vars.join(', ') : ''
            debug("mysql #{curr[:conn]} executing:\n#{sql}\n[#{debug_vars_str}]")
        end
        query_start
        stmt = connection.prepare(sql)
        curr[:stmt] = stmt
        res = stmt.execute(*bind_vars)
        have_result = (stmt.field_count == 0 ? false : true)
        if (have_result)
            result_meta = stmt.result_metadata
            fields = result_meta.fetch_fields
            result = []
            while (a = res.fetch)
                h = {}
                fields.each_index{ |i| h[fields[i].name] = a[i]}
                if block_given?
                    yield h
                else
                    result << h
                end
            end
            if (curr[:last_query_type] == :select)
                rows_res = connection.query("select FOUND_ROWS()")
                curr[:total_rows] = rows_res.fetch_row[0].to_i
            end
        end
        curr[:last_insert_id] = connection.insert_id
        curr[:last_query_type] = nil
        if (have_result)
            unless block_given?
                result.extend(StorageResult)
                return result
            end
        else
            return res
        end
    rescue => exc
        release if !in_transaction?
        if (exc.message =~ /Duplicate entry/)
            raise Spider::Model::Storage::DuplicateKey
        else
            raise exc
        end
    ensure
        query_finished
        release if !curr[:conn].blank? && !in_transaction?
    end
end

#execute_statement(stmt, *bind_vars) ⇒ Object 



232
233
234
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 232

def execute_statement(stmt, *bind_vars)
    stmt.execute(*bind_vars)
end

#function(func) ⇒ Object 



346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 346

def function(func)
    case func.func_name
    when :rownum
        "if(@rn, @rn:=@rn+1, @rn:=1)-1"
    when :concat
        fields = func.elements.map{ |func_el|
            if (func_el.is_a?(Spider::QueryFuncs::Function))
                function(func_el)
            else
                func.mapper_fields[func_el.to_s]
            end
        }
        "CONCAT(#{fields.map{ |f| "COALESCE(#{f}, '')" }.join(', ')})"
    else
        super
    end
end

#get_table_create_sql(table) ⇒ Object 



437
438
439
440
441
442
443
444
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 437

def get_table_create_sql(table)
    sql = nil
    connection do |c|
        res = c.query("SHOW CREATE TABLE #{table}")
        sql = res.fetch_row[1]
    end
    sql
end

#in_transaction? ⇒ Boolean

Returns:

  • (Boolean) 


148
149
150
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 148

def in_transaction?
    return curr[:in_transaction] ? true : false
end

#last_insert_id ⇒ Object 



276
277
278
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 276

def last_insert_id
    curr[:last_insert_id]
end

#list_tables ⇒ Object

Methods to get information from the db #



368
369
370
371
372
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 368

def list_tables
    connection do |c|
        return c.list_tables
    end
end

#parse_url(url) ⇒ Object 



133
134
135
136
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 133

def parse_url(url)
    @host, @user, @pass, @db_name, @port, @sock = self.class.parse_url(url)
    @connection_params = [@host, @user, @pass, @db_name, @port, @sock]
end

#prepare(sql) ⇒ Object 



227
228
229
230
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 227

def prepare(sql)
    debug("mysql preparing: #{sql}")
    return curr[:stmt] = connection.prepare(sql)
end

#prepare_value(type, value) ⇒ Object 



240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 240

def prepare_value(type, value)
   value = super(type, value)
   return value unless value
   case type.name
   when 'String'
       return value.to_s
   when 'Date'
       return value.strftime("%Y-%m-%d")
   when 'DateTime'
       return value.strftime("%Y-%m-%dT%H:%M:%S")
   when 'Time'
       return value.strftime("%H:%M:%S")
   when 'Fixnum'
       return value.to_i
   end
   return value
end

#release ⇒ Object 



92
93
94
95
96
97
98
99
100
101
102
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 92

def release
    begin
        #Spider::Logger.debug("MYSQL #{self.object_id} in thread #{Thread.current} releasing connection #{@conn}")
        curr[:conn].autocommit(true) if curr[:conn] && !Spider.conf.get('storage.db.shared_connection')
        super
    rescue => exc
        Spider::Logger.error("MYSQL #{self.object_id} in thread #{Thread.current} exception #{exc.message} while trying to release connection #{curr[:conn]}")
        self.class.remove_connection(curr[:conn], @connection_params)
        curr[:conn] = nil
    end
end

#rollback_savepoint(name = nil) ⇒ Object 



163
164
165
166
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 163

def rollback_savepoint(name=nil)
    connection.query("ROLLBACK TO #{name}")
    super
end

#savepoint(name) ⇒ Object 



143
144
145
146
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 143

def savepoint(name)
    connection.query("SAVEPOINT #{name}")
    super
end

#schema_field_date_equal?(current, field) ⇒ Boolean

Returns:

  • (Boolean) 


546
547
548
549
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 546

def schema_field_date_equal?(current, field)
    # FIXME
    return true
end

#schema_field_datetime_equal?(current, field) ⇒ Boolean

Returns:

  • (Boolean) 


551
552
553
554
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 551

def schema_field_datetime_equal?(current, field)
    # FIXME
    return true
end

#schema_field_float_equal?(current, field) ⇒ Boolean

Returns:

  • (Boolean) 


556
557
558
559
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 556

def schema_field_float_equal?(current, field)
    # FIXME
    return true
end

#schema_field_int_equal?(current, field) ⇒ Boolean

Returns:

  • (Boolean) 


536
537
538
539
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 536

def schema_field_int_equal?(current, field)
    # FIXME
    return true
end

#schema_field_text_equal?(current, field) ⇒ Boolean

Returns:

  • (Boolean) 


541
542
543
544
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 541

def schema_field_text_equal?(current, field)
    # FIXME
    return true
end

#schema_field_varchar_equal?(current, field) ⇒ Boolean

Returns:

  • (Boolean) 


561
562
563
564
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 561

def schema_field_varchar_equal?(current, field)
    # modifica fatta per introduzione LONGTEXT
    current[:type] == field[:type] && current[:length] == field[:attributes][:length]
end

#sql_add_field(table_name, name, type, attributes) ⇒ Object 



323
324
325
326
327
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 323

def sql_add_field(table_name, name, type, attributes)
    sqls = super
    sqls[0] += ", ADD PRIMARY KEY(#{name})" if attributes[:primary_key]
    sqls
end

#sql_alter_field(table_name, name, type, attributes) ⇒ Object 



329
330
331
332
333
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 329

def sql_alter_field(table_name, name, type, attributes)
    sqls = super
    sqls[0] += ", ADD PRIMARY KEY(#{name})" if attributes[:primary_key]
    sqls
end

#sql_create_primary_key(table_name, fields) ⇒ Object 



341
342
343
344
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 341

def sql_create_primary_key(table_name, fields)
    sqls = super
    #nil # done in add field or alter field
end

#sql_create_table(create) ⇒ Object 



335
336
337
338
339
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 335

def sql_create_table(create)
    sqls = super
    sqls[0] += " ENGINE=#{@configuration['default_engine']}" if @configuration['default_engine']
    sqls
end

#sql_select(query) ⇒ Object 



285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 285

def sql_select(query)
    curr[:last_query_type] = :select
    bind_vars = query[:bind_vars] || []
    tables_sql, tables_values = sql_tables(query)
    sql = "SELECT "
    sql += "SQL_CALC_FOUND_ROWS " unless query[:query_type] == :count
    if query[:joins] && query[:joins].values.map{ |h| h.values }.flatten.select{ |v| v[:type] == :left}.length > 0
        sql += "DISTINCT "
    end
    sql += "#{sql_keys(query)} FROM #{tables_sql} "
    bind_vars += tables_values
    where, vals = sql_condition(query)

    bind_vars += vals if vals
    sql += "WHERE #{where} " if where && !where.empty?
    having, having_vals = sql_condition(query, true)
    unless having.blank? && query[:group_by].blank?
       group_fields = query[:group_by] || (
           query[:keys].select{ |k| !k.is_a?(FieldExpression)
       } + collect_having_fields(query[:condition])).flatten.uniq
       group_keys = sql_keys(group_fields)
       sql += "GROUP BY #{group_keys} " 
       sql += "HAVING #{having} " unless having.blank?
       bind_vars += having_vals if having_vals
   end
    order = sql_order(query)
    sql += "ORDER BY #{order} " if order && !order.empty?
    limit = sql_limit(query)
    sql += limit if limit
    return sql, bind_vars
end

#sql_table_field(name, type, attributes) ⇒ Object 



317
318
319
320
321
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 317

def sql_table_field(name, type, attributes)
    sql = super
    sql += " AUTO_INCREMENT" if attributes[:autoincrement]
    return sql
end

#table_exists?(table) ⇒ Boolean

Returns:

  • (Boolean) 


425
426
427
428
429
430
431
432
433
434
435
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 425

def table_exists?(table)
    begin
        connection do |c|
            c.query("select * from #{table} where 1=0")
        end
        Spider.logger.debug("TABLE EXISTS #{table}")
        return true
    rescue ::Mysql::Error
        return false
    end
end

#table_name(name) ⇒ Object

Schema methods



490
491
492
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 490

def table_name(name)
    super.downcase
end

#total_rows ⇒ Object 



236
237
238
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 236

def total_rows
    return curr[:total_rows]
end

#value_to_mapper(type, value) ⇒ Object 



258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
 
# File 'lib/spiderfw/model/storage/db/adapters/mysql.rb', line 258

def value_to_mapper(type, value)
    return unless value
    begin
        case type.name
        when 'DateTime'
            @@time_offset ||= DateTime.now.offset
            return type.civil(value.year, value.month, value.day, value.hour, value.minute, value.second, @@time_offset)
        when 'Date'
            return type.civil(value.year, value.month, value.day)
        when 'Time'
            return type.local(2000, 1, 1, value.hour, value.minute, value.second)
        end
        return super(type, value)    
    rescue 
        return nil    
    end 
end