#justdotnetthings

Retooling a Legacy App

Entity Framework

• Query Generation– LINQ-syntax– Auto-compilation

• Database Access– Single context during page interaction

– —————— Less code– ———————— Better performance

– —————————————————

Some Page Some Page

What We Have Today

Some Page

-Factory

-Manager

-DAL

160+1

160+1

+1

-Collection160+1

• What if we need different data?

• What if we add a new database table?

-ServiceFaçade

ObjectSettings

What We’re Going For

-DbContext

Entity

Some Page

What We Have Today

Some Page

-Factory

-Manager

-DAL

160+1

160+1

+1

-Collection160+1

• What if we need different data?

• What if we add a new database table?

-ServiceFaçade

What We’re Going For

Deletable -DbContext

Creatable

SearchByDate

Entity

Some Page

• What if we need different data?

• What if we add a new database table?

SearchByName

+1

Aftermath

• Doesn’t this break literally everything?– Let’s do a demo

• What we’ve learned– You can’t spell “Hackathon” without “Hack”– Implementing a new framework isn’t a three day task

• But it can be done piece-by-piece