讲解Systems Programming、辅导C++设计、讲解C++编程 解析Haskell程序|辅导Python编程

Due before: 11:59 PM (before Midnight) on Wed April 10 2019
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Introduction to Systems Programming (Systems I)
Homework #6
Due: Wednesday April 10 2019 before 11:59 PM
Email-based help Cutoff: 5:00 PM on Tuesday April 9 2019
Maximum Points: 25
Submission Instructions
This homework assignment must be turned-in electronically via Canvas. Ensure your
program compiles (without any warnings or style errors) successfully. Ensure you have
tested operations of your program as indicated. Once you have tested your
implementation, upload just the 1 source file onto Canvas via the CODE plug-in.
1. The Movie.h and Movie.cpp modified as part of this homework
2. The homework6.cpp C++ source file modified for this homework.
General Note: Upload each file associated with homework (or lab exercises) individually
to Canvas. Do not upload archive file formats such as zip/tar/gz/7zip/rar etc.
Objective
The objective of this homework is to:
Develop a Common Gateway Interface (CGI) program
Process inputs with URL-encoding
Run SQL queries on a database and process results
Work with a simple C++ class to manage results from a database.
Grading Rubric:
The program submitted for this homework must pass necessary base
case test(s) in order to qualify for earning any score at all.
Programs that do not meet base case requirements or just skeleton
code will be assigned zero score!
Program that do not compile, have even 1 method longer than 25
lines, or just some skeleton code will be assigned zero score.
-1 Points: for each warning generated by the compiler.
NOTE: Violating CSE programming style guidelines is a compiler error! Your
program should not have any style violations reported in NetBeans when you
compile it.Due before: 11:59 PM (before Midnight) on Wed April 10 2019
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Starter Code:
Movie.h, Movie.cpp: For this homework you are supplied with a Movie
class. You may modify these 2 files as needed. Review the
Movie::printAsHtml method. You must use this printAsHtml method
to print Movie information (if you don't use this method to print Movie
information you automatically get zero for this homework).
homework6.cpp: For convenience you are supplied with a starter code with
some of the HTML formatting information to streamline printing results in
HTML.
hw6.html and movies.css: Do not modify or submit these 2 files.
Optionally, you can use these 2 files to setup your own website (to showcase your
work for jobs/internships) in your public_html using the procedure from prior
labs.
Background
A Movies table has been created and populated with information about movies. The
structure of the table is shown below:
mysql> desc Movies;
+---------+--------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+---------+--------------+------+-----+---------+-------+
| id | int(8) | NO | PRI | NULL | |
| title | varchar(256) | NO | MUL | NULL | |
| year | int(4) | NO | MUL | NULL | |
| genres | varchar(128) | NO | | NULL | |
| imdb_id | int(9) | NO | | NULL | |
| rating | float(7,5) | NO | | NULL | |
| raters | int(6) | NO | | NULL | |
+---------+--------------+------+-----+---------+-------+
In this homework you will be developing a custom C++ program that can find movies
matching one-or-more of the following conditions specified by the user:
1. title: If this input is specified (i.e., not an empty string) then this specifies the
partial (i.e., substring) title for the movie the user is interested in.
2. genre: If this input is specified (i.e., not an empty string) then this specifies a
partial (i.e., substring) for the genre for the movie the user is interested in.
3. startYear: If this input is specified (i.e., not an empty string) then this
specifies the earliest year to search for movies. For example, if
startYear=2000, then return only movies with year >= 2000.
4. edYear: If this input is specified (i.e., not an empty string) then this specifies
the latest year to search for movies. For example, if endYear=2016, then return
only movies with year <= 2016.
Note: You may assume at least one of the above inputs will be specified. Each of the
above inputs restricts the scope of the search. For example, if title=atri,
genre="Anim", startYear=1990, and endYear=2016, then the search is for a
movie whose title contains the substring "atri" and genre contains the substring
"anim" and year is >= 1990 and year <= 2016. If any of the inputs are not
specified, then the corresponding restriction is not applicable.Due before: 11:59 PM (before Midnight) on Wed April 10 2019
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Demonstration site
An example website is available at http://os1.csi.miamioh.edu/~raodm/hw6/hw6.html.
You can use the above website to form a stronger mental model on the expected userexperience
for his assignment.
Homework Assignment
Develop a CGI-bin compatible C++ program that can process 1-line of input in the
following manner:
Base case: The program should extract the title value and print movies
whose title contains the specified substring. 15 points
Extra functionality #1: If genre is specified, the program should print
movies whose genre contains the specified substring. The program
should handle cases where the title or genre may or may not be specified.
8 points
Extra functionality #2: If startYear or endYear inputs are
specified then the program should restrict movies to those years
appropriately.
7 points
Tips:
1. First play with the demo website using sample inputs and outputs to ensure you
form a good mental model of the operation.
2. Use the solutions for lab exercises as reference to implement the necessary
functionality.
3. Needless to add you should URL-decode all values input via CGI.
4. Remove any trailing newline ('\n') characters in numerical inputs. Otherwise
you may get errors when calling std::stoi.
5. Use SQL LIKE clause to search for substrings.
6. Think about using if-statements to add additional conditions to your SQL query
7. Use bind variables to streamline your query. Keep in mind you can specify more
bind variables in the store() statement than used. For example, even though your
query may only have %1 as the only bind variable, you can still call
query.store(year, genre, startYear, endYear); with 4
variables.
8. Using the lab exercises as reference, develop a program with hardcoded values
to test the operations of the above store method. Developing test program is the
best way to improve your understanding. This type of learning (i.e., building
small test programs) is a key expectation in jobs and internships.
9. The above feature enables you have just 1 SQL statement to develop this
program, thereby making this assignment an cinch.
10. You will need to add a constructor or setter methods to the supplied Movie class
to set values in instance variables.
11. This would be a good project to showcase for jobs after you add more features of
your own.Due before: 11:59 PM (before Midnight) on Wed April 10 2019
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Sample inputs and outputs
Note: Some of the output appear wrapped in the sample output below. User inputs are
shown in bold.
Base case #1:
title=M%61tr%69x&genre=&startYear=&endYear=
Content-Type: text/html












Extra functionality #1 Test #1:
title=&genre=C%2B%2B&startYear=&endYear=
Content-Type: text/html








Due before: 11:59 PM (before Midnight) on Wed April 10 2019
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Extra functionality #1 Test #2:
title=M%61tr%69x&genre=An%69m&startYear=&endYear=









Extra functionality #2 Test #1:
title=&genre=&startYear=%32%30%31%39&endYear=
Content-Type: text/html









Extra functionality #2 Test #2:
title=&genre=&startYear=&endYear=1902
Content-Type: text/html








Due before: 11:59 PM (before Midnight) on Wed April 10 2019
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Extra functionality #2 Test #3:
title=M%61tr%69x&genre=&startYear=&endYear=%32%30%300
Content-Type: text/html









Extra functionality #2 Test #4:
title=Toy&genre=Anim&startYear=1995&endYear=1999
Content-Type: text/html










Turn-in:
This homework assignment must be turned-in electronically via Canvas CODE plug-in.
Ensure you have tested operations of your program by setting up your website. Once
you have tested your implementation, upload the following 3 source files onto Canvas:
1. The Movie.h and Movie.cpp modified as part of this homework
2. The homework6.cpp C++ source file modified for this homework.
Upload all the necessary C++ source files to onto Canvas via the CODE plug-in. Do not
submit zip/7zip/tar/gzip files. Upload each file independently.