Class: RailsDbAdmin::ErpApp::Desktop::QueriesController

Inherits:
BaseController
  • Object
show all
Defined in:
app/controllers/rails_db_admin/erp_app/desktop/queries_controller.rb

Direct Known Subclasses

ReportsController

Instance Method Summary collapse

Methods inherited from BaseController

#databases, #setup_table_grid, #table_data, #tables

Instance Method Details

#delete_query ⇒ Object 



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# File 'app/controllers/rails_db_admin/erp_app/desktop/queries_controller.rb', line 27

def delete_query
  query_name  = params[:query_name]
  @query_support.delete_query(query_name)

  render :json => {:success => true}
end

#execute_query ⇒ Object 



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# File 'app/controllers/rails_db_admin/erp_app/desktop/queries_controller.rb', line 97

def execute_query
  sql = params[:sql]
  selection = params[:selected_sql]
  sql = sql.rstrip
  cursor_pos = params[:cursor_pos].to_i

  #append a semicolon as the last character if the
  #user forgot
  if !sql.end_with?(";")
    sql << ";"
  end

  sql_arr = sql.split("\n")
  sql_stmt_arry = []
  sql_str = ""

  #search for the query to run based on cursor position if there
  #was nothing selected by the user
  if (selection == nil || selection == "")
    last_stmt_end = 0
    sql_arr.each_with_index do |val,idx|
      if val.match(';')
        sql_stmt_arry << {:begin => (sql_stmt_arry.length > 0) ? last_stmt_end +1 : 0, :end => idx}
        last_stmt_end = idx
      end
    end

    last_sql_stmt = sql_stmt_arry.length-1
    #run the first complete query if we're in whitespace
    #at the beginning of the text area
    if cursor_pos <= sql_stmt_arry[0].fetch(:begin)
      sql_str = sql_arr.values_at(sql_stmt_arry[0].fetch(:begin)..
        sql_stmt_arry[0].fetch(:end)).join(" ")
      #run the last query if we're in whitespace at the end of the
      #textarea
    elsif cursor_pos > sql_stmt_arry[last_sql_stmt].fetch(:begin)
      sql_str = sql_arr.values_at(
        sql_stmt_arry[last_sql_stmt].fetch(:begin)..
        sql_stmt_arry[last_sql_stmt].fetch(:end)).join(" ")
      #run query based on cursor position
    else
      sql_stmt_arry.each do |sql_stmt|
        if cursor_pos >= sql_stmt.fetch(:begin) &&
            cursor_pos <= sql_stmt.fetch(:end)
          sql_str = sql_arr.values_at(sql_stmt.fetch(:begin)..
            sql_stmt.fetch(:end)).join(" ")
        end
      end
    end
  else
    sql_str = selection
  end

  columns, values, exception = @query_support.execute_sql(sql_str)

  if !exception.nil?
    result = {:success => false, :exception => exception.gsub("\n"," ")}
  elsif columns.empty? || values.empty?
    result = {:success => false, :exception => "Empty result set"}
  else exception.nil?
    columns_array = columns.collect do |column|
      RailsDbAdmin::Extjs::JsonColumnBuilder.build_readonly_column(column)
    end

    fields_array = columns.collect do |column|
      {:name => column}
    end

    result = {:success => true, :sql => sql,
      :columns => columns_array,
      :fields => fields_array, :data => values}
  end
  render :json => result
end

#open_and_execute_query ⇒ Object 



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# File 'app/controllers/rails_db_admin/erp_app/desktop/queries_controller.rb', line 53

def open_and_execute_query
  result = {}
  query_name = params[:query_name]

  query = @query_support.get_query(query_name)
  columns, values, exception = @query_support.execute_sql(query)

  if columns.blank? || values.blank?
    result = {:success => false, :query => query,
      :exception => "Empty result set"}
  elsif exception.nil?

    columns_array = columns.collect do |column|
      RailsDbAdmin::Extjs::JsonColumnBuilder.build_readonly_column(column)
    end

    fields_array = columns.collect do |column|
      {:name => column}
    end

    result = {:success => true, :query => query,
      :columns => columns_array,
      :fields => fields_array, :data => values}
  else
    result = {:success => false, :query => query,
      :exception => exception.gsub("\n", " ")}
  end

  render :json => result
end

#open_query ⇒ Object 



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# File 'app/controllers/rails_db_admin/erp_app/desktop/queries_controller.rb', line 46

def open_query
  query_name = params[:query_name]
  query = @query_support.get_query(query_name)

  render :json => {:success => true, :query => query}
end

#save_query ⇒ Object 



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# File 'app/controllers/rails_db_admin/erp_app/desktop/queries_controller.rb', line 6

def save_query
  query = params[:query]
  query_name  = params[:query_name]

  @query_support.save_query(query, query_name)

  render :json => {:success => true}
end

#saved_queries ⇒ Object 



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# File 'app/controllers/rails_db_admin/erp_app/desktop/queries_controller.rb', line 15

def saved_queries
  names = @query_support.get_saved_query_names

  names_hash_array = []

  names_hash_array = names.collect do |name|
    {:display => name, :value => name}
  end unless names.empty?

  render :json => {:data => names_hash_array}
end

#saved_queries_tree ⇒ Object 



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# File 'app/controllers/rails_db_admin/erp_app/desktop/queries_controller.rb', line 34

def saved_queries_tree
  names = @query_support.get_saved_query_names

  queries = []

  queries = names.collect do |name|
    {:text => name, :id => name, :iconCls => 'icon-sql', :leaf => true}
  end unless names.empty?

  render :json => queries
end

#select_top_fifty ⇒ Object 



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# File 'app/controllers/rails_db_admin/erp_app/desktop/queries_controller.rb', line 84

def select_top_fifty
  table = params[:table]
  sql, results = @query_support.select_top_fifty(table)

  columns = @database_connection_class.connection.columns(table)

  render :json => {:success => true,
    :sql => sql,
    :columns => RailsDbAdmin::Extjs::JsonColumnBuilder.build_grid_columns(columns),
    :fields => RailsDbAdmin::Extjs::JsonColumnBuilder.build_store_fields(columns),
    :data => results}
end