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create database twitter

Use twitter

Create Table USERS

(

	UserID [int] NOT NULL Primary Key Identity(1,1),

	Image [image] NULL,

	Name [varchar](50) NOT NULL,

	Password [varchar](50) NOT NULL,

	Phone [varchar](50) NULL,

	DOB [Date] NULL,

	Email [varchar](50) NOT NULL,

	Gender [varchar](50) NULL,

	About [text] NULL,

	Status [varchar](50) NULL  

)

Create Table FOLLOWERS

(

	FollowID [int] NOT NULL Primary Key Identity(1,1),

	UserID [int] NOT NULL Foreign Key References USERS(UserID) On Delete No Action On Update No Action,

	FollowingID [int] NOT NULL Foreign Key References USERS(UserID) On Delete No Action On Update No Action

)

Create Table TWEETS

(	

	TweetID [int] NOT NULL Primary Key Identity(1,1),

	UserID [int] NOT NULL Foreign Key References USERS(UserID) On Delete No Action On Update No Action,

	TrendName [varchar](50) NULL,

	TweetContent [varchar](Max) NOT NULL  

)

Create Table TRENDS

(

	TrendID [int] NOT NULL Primary Key Identity(1,1),

	TrendName [varchar](50) NOT NULL

)

Create Table LIKES

(

	LikeID [int] NOT NULL Primary Key Identity(1,1),

	LikerID [int] NOT NULL Foreign Key References USERS(UserID) On Delete No Action On Update No Action,

	TweetID [int] NOT NULL Foreign Key References TWEETS(TweetID) On Delete No Action On Update No Action 

)

Create Table REPLIES

(

	ReplyID [int] NOT NULL Primary Key Identity(1,1),

	ReplierID [int] NOT NULL Foreign Key References USERS(UserID) On Delete No Action On Update No Action,

	TweetID [int] NOT NULL Foreign Key References TWEETS(TweetID) On Delete No Action On Update No Action,

	ReplyContent [varchar](Max) NOT NULL

)  

Create Table RETWEETS

(

	ReTweetID [int] NOT NULL Primary Key Identity(1,1),

	ReTweeterID [int] NOT NULL Foreign Key References USERS(UserID) On Delete No Action On Update No Action,

	TweetID [int] NOT NULL Foreign Key References TWEETS(TweetID) On Delete No Action On Update No Action

)

Create Table MESSAGES 

(

	MessageID [int] NOT NULL Primary Key Identity(1,1),

	SenderID [int] NOT NULL Foreign Key References USERS(UserID) On Delete No Action On Update No Action,

	ReceiverID [int] NOT NULL Foreign Key References USERS(UserID) On Delete No Action On Update No Action,

	MessageContent [varchar](Max) NOT NULL

)

-- Procedure for SIGN UP

GO

Create Procedure SigningUp

@Name varchar(50), @Email varchar(50), @Pass varchar(50),  @Status varchar(1) Output

As

Begin

If Exists(Select * From USERS As A Where A.Email=@Email)

	Begin

		Set @Status='0'  -- User is already present

	End	

Else 

	Begin

		Insert Into USERS (Name, Password, Email, Status) Values (@Name, @Pass, @Email, 'Active')

		Set @Status='1'  -- User has been entered

	End

End

--Execution

--Declare @TestStatus varchar(1)

--Execute SigningUp 'Hamza', 'hamza@gmail.com', '123', @Status=@TestStatus Output

--Select @TestStatus As Status

--Procedure for LOGIN

GO

Create Procedure LoggingIn

@Email varchar(50), @Pass varchar(50), @Status varchar(1) Output

As

Begin  

If Exists (Select * From Users Where Email=@Email and Password=@Pass)

	Begin

		Set @Status='1' --User Exists

		If (Select Status From USERS Where Email=@Email) is NULL

		Begin

			Update USERS Set Status='Active' Where Email=@Email

		End

	End

Else

	Begin 

	If Exists ( Select * From Users Where Email=@Email and Password!=@Pass)

		Begin

			Set @Status='2' -- Password Incorrect

		End

	Else If Not Exists( Select * From Users Where Email=@Email )

		Begin

			Set @Status='3' -- Login Does Not Exists

		End

	End

End

-- Execution

--Declare @TestStatus varchar(1)

--Execute LoggingIn 'hamza@gmail.com', '123', @Status=@TestStatus Output

--Select @TestStatus As Status

--Select * From USERS

-- Procedure For TWEET STORING

GO

Create Procedure TweetStoring

@Email varchar(50), @Trendname varchar(50), @Content varchar(120)

AS

Begin

	Declare @Userid int

	Select @Userid=UserID

	From USERS

	Where Email=@Email

	if(@Content!='')

	Begin

		if(@Trendname='-1')

		begin

			Set @Trendname=NULL

		end

		Insert Into TWEETS (UserID, TrendName, TweetContent) Values (@Userid, @Trendname,@Content)

		If Not Exists (Select * From TRENDS Where TrendName=@Trendname) 

			Begin

				IF (@Trendname is not NULL)

				begin 

					Insert Into TRENDS (TrendName) Values(@Trendname)

				end

			End

	End

End

--drop procedure TweetStoring

-- Execution

--Execute TweetStoring 'waleed@gmail.com', '#GoodLife', 'Just Prayed. #GoodLife'

--Select * From USERS

--Select * From Tweets

-- Procedure for MESSAGE SAVING

GO

Create Procedure MessageControl

@SenderID int, @ReceiverID int, @Content varchar(Max)

As

Begin

	Insert Into MESSAGES(SenderID, ReceiverID, MessageContent) Values(@SenderID, @ReceiverID, @Content)

End

-- Execution

--Execute MessageControl 1,2, 'Hello, how are you?'

-- Procedure For LIKE OR UNLIKE

GO

Create Procedure LikeUnlike

@LikerID int, @TweetID int, @Status varchar(1) Output

As

Begin

If Exists (Select * From LIKES Where LikerID=@LikerID AND TweetID=@TweetID)

	Begin

		Set @Status='0' -- Unliked Now

		Delete From LIKES Where LikerID=@LikerID AND TweetID=@TweetID

	End

Else

	Begin

		Set @Status='1' --Liked Now

		Insert Into LIKES (LikerID,TweetID) Values(@LikerID, @TweetID)

	End

End

-- Execution

--Declare @TestStatus varchar(1)

--Execute LikeUnlike 2,1, @Status=@TestStatus Output

--Select @TestStatus AS Status

go

GO

Create Procedure getTotallikes

 @Tweet varchar(max), @total int Output

As

begin

declare @id int

select @id=TWEETS.TweetID

from TWEETS

where TWEETS.TweetContent=@Tweet

declare @total1 int

select @total=t

from

(

select LIKES.TweetID, count(LIKES.LikeID) as t

from LIKES

group by LIKES.TweetID

) as x

where x.TweetID=@id

set @total =@total1

end

-- Procedure For FOLLOW UNFOLLOW

go

create proc geteachlike

(

@userid int,

@tweetid varchar(max)

)

as

begin

If Exists (Select * From LIKES Where LikerID=@userid AND TweetID=@tweetid)

begin

return 1

end

else

begin

return 0

end

end

--procedure for following unfollowing

GO

Create Procedure FollowUnFollow

@FollowEmail varchar(50), @FollowingEmail varchar(50)

As

Begin

declare @UserID int,@FollowingID int

Set @UserID=(Select UserID From Users Where Email=@FollowEmail)

Set @FollowingID=(Select UserID From Users Where Email=@FollowingEmail)

If Exists (Select * From FOLLOWERS Where UserID=@UserID AND FollowingID=@FollowingID)

	Begin

		Delete From FOLLOWERS Where UserID=@UserID AND FollowingID=@FollowingID

	End

Else

	Begin

		Insert Into FOLLOWERS(UserID,FollowingID) Values(@UserID, @FollowingID)

	End

End

--Exec FollowUnFollow

Select * from FOLLOWERS

--Drop Procedure FollowUnfollow

-- Execution

--Declare @TestStatus varchar(1)

--Execute FollowUnfollow 2,1, @Status=@TestStatus Output

--Select @TestStatus AS Status

-- Procedure for Getting Name

Go

Create Procedure GetName

@Email varchar(50)

As

Begin

Select Name

From USERS

Where Email=@Email

End

GO

Create View AllTrends 

As 

Select *

From Trends

--Procedure for Deactivting

GO

CREATE PROCEDURE Deactivate

@Email varchar(50)

AS

BEGIN

	UPDATE USERS 

	SET Status=NULL

	WHERE Email=@Email

END

-- Execution

--EXEC Deactivate

--@Email='waleed@gmail.com'

--Procedure for Update of Remaining User Info

GO

Create Procedure AddUserInfo

@Email varchar(50),

@Gender varchar(50),

@Dob varchar(50),

@Ph varchar(50),

@Notes varchar(50)

As

Begin

	If(@Gender='-1')

	Begin

		Set @Gender=NULL

	End

	If(@Dob='-1')

	Begin

		Set @Dob=NULL

	End

	If(@Ph='-1')

	Begin

		Set @Ph=NULL

	End

	If(@Notes='-1')

	Begin

		Set @Notes=NULL

	End

	Update USERS Set Gender=@Gender, DOB=@Dob, Phone=@Ph,  About=@Notes Where Email=@Email 

End

--Drop Procedure AddUserInfo

--Execution

--Execute AddUserInfo 'hamza@gmail.com','-1', '-1','03360101543','-1'

--Select* From USERS

--Procedure for Update of Remaining User Info

GO

Create Procedure AboutInfo

@Email varchar(50),

@Password varchar(50),

@Dob varchar(50),

@Ph varchar(50),

@Notes varchar(50)

As

Begin

	If(@Password='-1')

	Begin

		Select @Password=Password From USERS Where Email=@Email

	End

	If(@Dob='-1')

	Begin

		Select @Dob=DOB From USERS Where Email=@Email

	End

	If(@Ph='-1')

	Begin

		Select @Ph=Phone From USERS Where Email=@Email

	End

	If(@Notes='-1')

	Begin

		Select @Notes=About From USERS Where Email=@Email

	End

	Update USERS Set Password=@Password, DOB=@Dob, Phone=@Ph,  About=@Notes Where Email=@Email 

End

--Drop Procedure AboutInfo

--Execution

--Select* From USERS

--GettingTotalTweets

GO

Create Procedure TotalTweets

@email varchar(50)

as

Begin

	select u.Email,count(t.TweetID) as Total

	from  USERS as u join TWEETS as t on u.UserID=t.UserID

	where u.Email=@email

	group by u.Email

end

--GetRelatedTweets

Go

Create Procedure GetTweetsHome

@Email varchar(50)

AS

Begin

	declare @UserID int

	select @UserID=UserID

	from USERS

	where Email=@Email

	Select U.Name,U.Email,TweetContent

	From USERS as U

	Join TWEETS as T ON U.UserID=T.UserID

	WHERE U.UserID=@UserID OR 

	U.UserID IN (

		Select F.UserID

		From (

			Select C.UserID,FollowingID 

			from FOLLOWERS as G Join Users as C On G.UserID=C.UserID 

			WHERE Status is not NULL

			) as F 

		Where FollowingID=@UserID

	)  

End

--Drop Procedure GetTweetsHome

--EXEC GetTweetsHome 'hamza@gmail.com'

--Select * from FOLLOWERS

--Select * from USERS

--GetTweetsProfile

Go

Create Procedure GetTweetsProfile

@Email varchar(50)

AS

Begin

declare @UserID int

select @UserID=UserID

from USERS

where Email=@Email

Select u.Name,u.Email,t.TweetContent

from USERS as u join TWEETS as T on u.UserID=t.UserID

where u.UserID=@UserID 

End

--exec GetTweetsProfile 'asjad@gmail.com'

--GetTweetsTrend

Go

Create Procedure GetTweetsTrend

@Trendname varchar(50)

AS

Begin

Select u.Name,u.Email,t.TweetContent

From TWEETS As T join TRENDS AS Tr On T.TrendName=Tr.TrendName join USERS as u on T.UserID=u.UserID

Where T.TrendName=@Trendname And Status is not null

End

--Exec GetTweetsTrend '#PartyScene' 

--drop procedure GetTweetsTrend

--Select * From Users

-- Procedure for Getting Credentials

Go

Create Procedure GetCredentials

@Email varchar(50)

As

Begin

	Select Gender,Phone,DOB,About

	From USERS

	Where Email=@Email

End

--Drop Procedure GetCredentials

--Procedure for GetSearch

GO

Create Procedure GetSearch

@Search varchar(50)

AS

Begin

	Select Name,Email

	From Users

	Where Name like @Search+'%' AND Status is not NULL AND @Search!=''

End

--Drop Procedure GetSearch

--Exec GetSearch @Search='Ferhan'

--Select * From USERS

--Procedure for Iffollowing

GO

Create Procedure Iffollowing

@followemail varchar(50),@followingemail varchar(50), @status varchar(1) output

as

Begin

	If Exists(Select * From Followers 

				Where UserID IN (Select UserID From Users Where Email=@followemail) AND FollowingID IN (Select UserID From Users Where Email=@followingemail))

		Begin

			Set @Status='1'  -- Relation is already present

		End	

	Else 

		Begin

			Set @Status='0'  -- Relation is not present

		End

End

--Declare @TestStatus varchar(1)

--Exec Iffollowing

--@followemail='ferhan@gmail.com',@followingemail='hamza@gmail.com',

--@status=@TestStatus output

--Select @TestStatus

--Drop Procedure Iffollowing

--Procedure for Who To Follow

Go

Create Procedure WhotoFollow

@Email varchar(50)

AS

Declare @UserID int

Set @UserID=(Select UserID From Users Where Email=@Email)

Select Top 5 U.Name,U.Email

From USERS as U

Join	(Select P.UserID

			FROM (Select G.UserID

			From FOLLOWERS as G

			Where G.FollowingID=@UserID) as Q Join FOLLOWERS as P ON Q.UserID=P.FollowingID

			) as F 

ON F.UserID=U.UserID

Where U.UserID!=@UserID AND U.Status is not NULL AND F.UserID NOT IN (Select UserID From FOLLOWERS Where FollowingID=@UserID)

Group By U.Name,U.Email

--End of Procedure Who to Follow

--Get Followers

Go

Create Procedure GetFollowers

@Email varchar(50)

AS

Declare @UserID int

Set @UserID=(Select UserID From USERS Where Email=@Email)

Select U.Email,Name

From Users as U

Join FOLLOWERS as F ON U.UserID=FollowingID

Where F.UserID=@UserID AND U.Status is not Null

Group By U.Email,Name

--Drop Procedure GetFollowers

--Get Followers Ends

--Get Following

Go

Create Procedure GetFollowing

@Email varchar(50)

AS

Declare @UserID int

Set @UserID=(Select UserID From USERS Where Email=@Email)

Select U.Email,Name

From Users as U

Join FOLLOWERS as F ON U.UserID=F.UserID

Where F.FollowingID=@UserID AND U.Status is not Null

Group By U.Email,Name

--Drop Procedure GetFollowers

--Get Following Ends

--Send Message

Go

Create Procedure SendMessage

@SenderEmail varchar(50),@ReceiverEmail varchar(50),@MessageContent varchar(max)

AS

Declare @ReceiverID int,@SenderID int

Set @SenderID=(Select UserID From USERS Where Email=@SenderEmail)

Set @ReceiverID=(Select UserID From USERS Where Email=@ReceiverEmail)

Insert Into MESSAGES(SenderID,ReceiverID,MessageContent) values (@SenderID,@ReceiverID,@MessageContent)

--End of SendMessages

--Procedure for MessagesFrom

Go

Create Procedure GetMessagesFrom

@Email varchar(50)

AS

Begin

Declare @UserID int

Set @UserID=(Select UserID From USERS Where Email=@Email)

Select u.Name,u.Email

from MESSAGES as m join USERS as u on m.SenderId=u.userid

where m.ReceiverID=@UserID

union

Select u.Name,u.Email

from MESSAGES as m join USERS as u on m.ReceiverID=u.userid

where m.SenderID=@UserID

end

--DROP Procedure GetMessagesFrom

--Select * from MESSAGES

--Exec GetMessagesFrom @Email='hamza@gmail.com'

--End of MessagesFrom

--Procedure to GetMessages

Go

Create Procedure GetMessages

@senderemail varchar(50),@receiveremail varchar(50)

AS

Begin

declare @senderId int

declare @receiverId int

set @senderId=(select UserId

from USERS

where Email=@senderemail)

set @receiverId=(select UserId

from USERS

where Email=@receiveremail)

select u.Name,u.Email,MessageContent

from MESSAGES as m join USERS as u on m.SenderID=u.UserID

where (SenderID=@senderId and ReceiverID=@receiverId) or (SenderID=@receiverId and ReceiverID=@senderId)

End

select * from USERS

insert into USERS (UserID,Name,Password,Phone,DOB,Email,About,s)

 No newline at end of file