Class: ActiveRecord::ConnectionAdapters::QuickBaseAdapter

Inherits:
AbstractAdapter
  • Object
show all
Defined in:
lib/quickbase_adapter.rb

Overview

The QuickBase Adapter for Rails

Instance Method Summary collapse

Constructor Details

#initialize(connection, logger, connection_options = nil) ⇒ QuickBaseAdapter

Returns a new instance of QuickBaseAdapter.



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# File 'lib/quickbase_adapter.rb', line 110

def initialize(connection, logger, connection_options=nil)
  super(connection, logger)
  @connection_options = connection_options
  @qbc = @connection
  @main_dbid = @qbc.dbid.dup
  @main_dbname = @qbc.dbname.dup.downcase
  @id_field_name = "Record ID#"
  @id_fid = "3"
  @useActiveTableColumns = false
  @cachedColumns = {}
end

Instance Method Details

#active? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/quickbase_adapter.rb', line 283

def active?
  @qbc.ticket
end

#adapter_name ⇒ Object 



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# File 'lib/quickbase_adapter.rb', line 122

def adapter_name
  'QuickBase'
end

#add_column(table_name, column_name, type, options = {}) ⇒ Object

Raises:

  • (NotImplementedError) 


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# File 'lib/quickbase_adapter.rb', line 302

def add_column(table_name, column_name, type, options = {})
  raise NotImplementedError, "add_column is not supported by the QuickBase adapter"
end

#add_index(table_name, column_name, options = {}) ⇒ Object

Raises:

  • (NotImplementedError) 


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# File 'lib/quickbase_adapter.rb', line 310

def add_index(table_name, column_name, options = {})
  raise NotImplementedError, "indexing is not supported by the QuickBase"
end

#columns(table_name, name = nil) ⇒ Object 



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# File 'lib/quickbase_adapter.rb', line 126

def columns(table_name, name = nil)

   return [] if table_name.nil? or table_name.blank?
   
   if @useActiveTableColumns
      dbid = @qbc.dbid
      @useActiveTableColumns = false
   else
      @qbc.getSchema(@main_dbid)
      if table_name.downcase != @main_dbname or @qbc.chdbids
         dbid = @qbc.lookupChdbid(table_name)
         @qbc.getSchema(dbid)
      end
   end
   
   if @qbc.cacheSchemas and @cachedColumns[dbid]
      quickBaseColumns = @cachedColumns[dbid]
   else
      quickBaseColumns = []
      columnNames = @qbc.getFieldNames(dbid)
      key_fid = @qbc.key_fid
      primary = false
      columnNames.each{|columnName|
      
         fieldAttributes = {}
         quickBaseFieldId = @qbc.lookupFieldIDByName(columnName)
         quickBaseFieldType = @qbc.lookupFieldTypeByName(columnName)
         
         fieldAttributes["quickBaseFieldName"] =  columnName.dup
         fieldAttributes["quickBaseFieldId"] =  quickBaseFieldId.dup
         fieldAttributes["quickBaseFieldType"] =  quickBaseFieldType.dup
         fieldAttributes["default_value"] =  @qbc.lookupFieldPropertyByName(columnName, "default_value" )
         fieldAttributes["decimal_places"] =  @qbc.lookupFieldPropertyByName(columnName, "decimal_places" )
         
         if key_fid and key_fid == quickBaseFieldId
            fieldAttributes["primary"] =  true
         elsif quickBaseFieldType == "recordid"
            @id_field_name = columnName.dup 
            @id_fid = quickBaseFieldId.dup
            columnName = "id"
         elsif quickBaseFieldId.to_i < 6  
            columnName << "_id" 
         end
         fieldAttributes["columnName"] =  columnName.dup
         quickBaseColumn = QuickBaseColumn.new(fieldAttributes)
         quickBaseColumns << quickBaseColumn
      }
      if @qbc.cacheSchemas
         @cachedColumns[dbid] = quickBaseColumns
      end
   end
   quickBaseColumns
end

#create_table(name, options = {}) ⇒ Object

Raises:

  • (NotImplementedError) 


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# File 'lib/quickbase_adapter.rb', line 298

def create_table(name, options = {})
  raise NotImplementedError, "create_table is not supported by the QuickBase adapter"
end

#delete(sql, name = nil) ⇒ Object 



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# File 'lib/quickbase_adapter.rb', line 199

def delete(sql, name = nil)
   selectString = sql.dup
   selectString.gsub!("DELETE","SELECT [id] ")
   selectString.gsub!("[id]",@id_fid)
   rows = select(selectString,name)
   rows.each{|row|
      recordID = row["id"]
      @qbc._deleteRecord(recordID) if recordID
   }
end

#disconnect! ⇒ Object 



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# File 'lib/quickbase_adapter.rb', line 293

def disconnect!
  @qbc.signOut 
  @active = @qbc.ticket
end

#execute(sql, name = nil) ⇒ Object 



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# File 'lib/quickbase_adapter.rb', line 273

def execute(sql, name = nil)
  if sql and sql.is_a?(String) and sql.length > 0
     @qbc.instance_eval(sql)
  end
end

#index_name(table_name, options) ⇒ Object

:nodoc:

Raises:

  • (NotImplementedError) 


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# File 'lib/quickbase_adapter.rb', line 314

def index_name(table_name, options) #:nodoc:
  raise NotImplementedError, "indexing is not supported by the QuickBase"
end

#insert(sql, name = nil, pk = nil, id_value = nil, sequence_name = nil) ⇒ Object 



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# File 'lib/quickbase_adapter.rb', line 188

def insert(sql, name = nil, pk = nil, id_value = nil, sequence_name = nil)
  sql.gsub!("NULL,","'',")
  @qbc.doSQLInsert(sql)
end

#quote(value, column = nil) ⇒ Object 



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# File 'lib/quickbase_adapter.rb', line 184

def quote(value, column = nil)
   ret = value ? "'#{value}'" : ''
end

#quote_column_name(name) ⇒ Object 



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# File 'lib/quickbase_adapter.rb', line 180

def quote_column_name(name)
  "[#{name}]"
end

#reconnect! ⇒ Object 



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# File 'lib/quickbase_adapter.rb', line 287

def reconnect!
    @qbc.signOut
    @qbc.authenticate(@qbc.username,@qbc.password) 
    @active = !@qbc.ticket.nil?
end

#remove_column(table_name, column_name) ⇒ Object

Raises:

  • (NotImplementedError) 


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# File 'lib/quickbase_adapter.rb', line 306

def remove_column(table_name, column_name)
  raise NotImplementedError, "remove_column is not supported by the QuickBase adapter"
end

#select(sql, name) ⇒ Object 



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# File 'lib/quickbase_adapter.rb', line 210

def select(sql,name)
   puts sql
   sql = sql.to_s
   
   if sql.match(/([^:]+)(:)(.+)/)
      table = $1
      sql = $3
   elsif name  
      table = name.split()[0]
   end
   
   rows = nil
   if sql.include?("SELECT count(*)")
      rows = []
      rows << {"count" => @qbc.doSQLQuery(sql).to_i }
   elsif sql.include?("SELECT ")
      sql.gsub!(".id",".#{@id_field_name}")
      rows = @qbc.doSQLQuery(sql, :Array)
      rows.each{|row| row["id"] = row[@id_field_name]} if rows
   elsif sql.match(/\{[^\}]+\}/)  # QuickBase query 
      setActiveTable(table)
      rows = @qbc.getAllValuesForFieldsAsArray(@qbc.dbid,@qbc.getFieldNames,sql)            
      rows.each{|row| row["id"] = row[@id_field_name]} if rows
   elsif sql.length > 0 # named QuickBase query 
      setActiveTable(table)
      rows = @qbc.getAllValuesForFieldsAsArray(@qbc.dbid,nil,nil,nil,sql)            
      rows.each{|row| row["id"] = row[@id_field_name]} if rows
   end
   puts rows.inspect
   
   rows
   
end

#setActiveTable(table) ⇒ Object 



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# File 'lib/quickbase_adapter.rb', line 244

def setActiveTable(table)
   if table
      foundTable  = false
      save_dbid = @qbc.dbid.dup
      @qbc.getSchema(@main_dbid)
      if table.downcase != @main_dbname
         if @qbc.lookupChdbid(table)
            if @qbc._getSchema
               foundTable  = true
            end
         elsif @qbc.findDBByname(table)                      
            if @qbc._getSchema
               foundTable  = true
            end
         else
            if @qbc.getSchema(table)
               foundTable  = true
            end
         end
      end
      if foundTable
         @useActiveTableColumns = true
      else
         @qbc.getSchema(save_dbid)
      end
   end
   @qbc.dbid
end

#supports_count_distinct? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/quickbase_adapter.rb', line 279

def supports_count_distinct?
  false
end

#update(sql, name = nil) ⇒ Object 



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# File 'lib/quickbase_adapter.rb', line 193

def update(sql, name = nil)
   selectString = sql.dup
   selectString.gsub!("[id]",@id_fid) 
   @qbc.doSQLUpdate(selectString)
end