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Specification Pattern In .NET With Projection.

This demo project showcases an extended specification pattern with projection capability, specifically tailored for Entity Framework in .NET. It showcases how the specification pattern can be effectively utilized with projection or selecting during SQL query execution rather than mapping after data retrieval, this pattern is designed to handle selection/projection directly within the SQL query when implementing the repository pattern with specifications.

Setup

Prerequisite

  1. .NET 8 installed on your computer. You can download .NET 8 from the official website (https://dotnet.microsoft.com/download/dotnet/8.0).
  2. An integrated development environment (IDE) to write your code
  3. Git installed on your computer.

Initial setup

  1. Clone the project.
git clone https://github.com/haritha99ch/ExtendedSpecificationPattern-Example.git
cd ExtendedSpecificationPattern-Example
  1. Set Environment variables.
dotnet user-secrets set"SqlServerOptions:ConnectionString" CONNECTIONSTRINGS_DEFAULTCONNECTION --project ./src/ApplicationSettings/

  1. Install all the dependencies.

    dotnet restore

  2. Build the project.

dotnet build
  1. Add migrations and update database.
dotnet ef migrations add InitialMigration --project ./src/Infrastructure/
dotnet ef database update --project ./src/Infrastructure/

Make sure, dotnet-ef tool is installed with dotnet tool install --global dotnet-ef

  1. Run the project.
dotnet run --project ./src/Presentation/
, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
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function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;
codeBlock.parentElement.setAttribute('data-copy-added', 'true');
var btn = document.createElement('button');
btn.textContent = 'Copy';
btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';
btn.onmouseover = function() { this.style.opacity = '1'; };
btn.onmouseout = function() { this.style.opacity = '0.7'; };
btn.onclick = function() {
navigator.clipboard.writeText(codeBlock.textContent).then(function() {
btn.textContent = 'Copied!';
setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
});
};
codeBlock.parentElement.style.position = 'relative';
codeBlock.parentElement.appendChild(btn);
});
}
addCopyButtons();
// Re-run on dynamic content
var observer = new MutationObserver(addCopyButtons);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
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try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
ExtendedSpecificationPattern-Example/README.md at main · haritha99ch/ExtendedSpecificationPattern-Example · GitHub
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Specification Pattern In .NET With Projection.
This demo project showcases an extended specification pattern with projection capability, specifically tailored for Entity Framework in .NET. It showcases how the specification pattern can be effectively utilized with projection or selecting during SQL query execution rather than mapping after data retrieval, this pattern is designed to handle selection/projection directly within the SQL query when implementing the repository pattern with specifications.
Setup
Prerequisite
  1. .NET 8 installed on your computer. You can download .NET 8 from the official website (https://dotnet.microsoft.com/download/dotnet/8.0).
  2. An integrated development environment (IDE) to write your code
  3. Git installed on your computer.
Initial setup
  1. Clone the project.
git clone https://github.com/haritha99ch/ExtendedSpecificationPattern-Example.git
cd ExtendedSpecificationPattern-Example
  1. Set Environment variables.
dotnet user-secrets set"SqlServerOptions:ConnectionString" CONNECTIONSTRINGS_DEFAULTCONNECTION --project ./src/ApplicationSettings/
  1. Install all the dependencies.
    dotnet restore
  2. Build the project.
dotnet build
  1. Add migrations and update database.
dotnet ef migrations add InitialMigration --project ./src/Infrastructure/
dotnet ef database update --project ./src/Infrastructure/
Make sure, dotnet-ef tool is installed with dotnet tool install --global dotnet-ef
  1. Run the project.
dotnet run --project ./src/Presentation/

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Force GitHub README to respect dark mode
(function() {
var style = document.createElement('style');
style.textContent = '
.markdown-body {
color-scheme: dark light;
}
.markdown-body pre { background: #161b22 !important; }
.markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }
.markdown-body table th, .markdown-body table td { border-color: #30363d !important; }
.markdown-body img { background: #0d1117; }
.markdown-body blockquote { border-left-color: #8b949e; }
.markdown-body hr { border-color: #30363d; }
';
document.head.appendChild(style);
})();
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
ExtendedSpecificationPattern-Example/README.md at main · haritha99ch/ExtendedSpecificationPattern-Example · GitHub
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Specification Pattern In .NET With Projection.
This demo project showcases an extended specification pattern with projection capability, specifically tailored for Entity Framework in .NET. It showcases how the specification pattern can be effectively utilized with projection or selecting during SQL query execution rather than mapping after data retrieval, this pattern is designed to handle selection/projection directly within the SQL query when implementing the repository pattern with specifications.
Setup
Prerequisite
  1. .NET 8 installed on your computer. You can download .NET 8 from the official website (https://dotnet.microsoft.com/download/dotnet/8.0).
  2. An integrated development environment (IDE) to write your code
  3. Git installed on your computer.
Initial setup
  1. Clone the project.
git clone https://github.com/haritha99ch/ExtendedSpecificationPattern-Example.git
cd ExtendedSpecificationPattern-Example
  1. Set Environment variables.
dotnet user-secrets set"SqlServerOptions:ConnectionString" CONNECTIONSTRINGS_DEFAULTCONNECTION --project ./src/ApplicationSettings/
  1. Install all the dependencies.
    dotnet restore
  2. Build the project.
dotnet build
  1. Add migrations and update database.
dotnet ef migrations add InitialMigration --project ./src/Infrastructure/
dotnet ef database update --project ./src/Infrastructure/
Make sure, dotnet-ef tool is installed with dotnet tool install --global dotnet-ef
  1. Run the project.
dotnet run --project ./src/Presentation/

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Highlight search terms from Google/DuckDuckGo/Bing referrer
(function() {
var ref = document.referrer;
var terms = [];
if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {
var url = new URL(ref);
var q = url.searchParams.get('q') || url.searchParams.get('p');
if (q) {
terms = q.split(/\s+/).filter(function(t) { return t.length > 2; });
}
}
if (terms.length === 0) return;
var style = document.createElement('style');
style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';
document.head.appendChild(style);
function highlight(node) {
if (node.nodeType === 3) { // text node
var text = node.textContent;
var found = false;
terms.forEach(function(term) {
var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi');
if (regex.test(text)) {
found = true;
var frag = document.createDocumentFragment();
var parts = text.split(regex);
parts.forEach(function(part, i) {
if (i % 2 === 0) {
frag.appendChild(document.createTextNode(part));
} else {
var span = document.createElement('span');
span.className = 'userscript-highlight';
span.textContent = part;
frag.appendChild(span);
}
});
node.parentNode.replaceChild(frag, node);
}
});
} else if (node.nodeType === 1 && node.childNodes) { // element
var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];
if (!skipTags.includes(node.tagName)) {
Array.from(node.childNodes).forEach(highlight);
}
}
}
highlight(document.body);
// Re-highlight on dynamic content
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1 || node.nodeType === 3) highlight(node);
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
ExtendedSpecificationPattern-Example/README.md at main · haritha99ch/ExtendedSpecificationPattern-Example · GitHub
Skip to content
README.md
Latest commit
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53 lines (35 loc) · 1.57 KB
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53 lines (35 loc) · 1.57 KB
Raw
Specification Pattern In .NET With Projection.
This demo project showcases an extended specification pattern with projection capability, specifically tailored for Entity Framework in .NET. It showcases how the specification pattern can be effectively utilized with projection or selecting during SQL query execution rather than mapping after data retrieval, this pattern is designed to handle selection/projection directly within the SQL query when implementing the repository pattern with specifications.
Setup
Prerequisite
  1. .NET 8 installed on your computer. You can download .NET 8 from the official website (https://dotnet.microsoft.com/download/dotnet/8.0).
  2. An integrated development environment (IDE) to write your code
  3. Git installed on your computer.
Initial setup
  1. Clone the project.
git clone https://github.com/haritha99ch/ExtendedSpecificationPattern-Example.git
cd ExtendedSpecificationPattern-Example
  1. Set Environment variables.
dotnet user-secrets set"SqlServerOptions:ConnectionString" CONNECTIONSTRINGS_DEFAULTCONNECTION --project ./src/ApplicationSettings/
  1. Install all the dependencies.
    dotnet restore
  2. Build the project.
dotnet build
  1. Add migrations and update database.
dotnet ef migrations add InitialMigration --project ./src/Infrastructure/
dotnet ef database update --project ./src/Infrastructure/
Make sure, dotnet-ef tool is installed with dotnet tool install --global dotnet-ef
  1. Run the project.
dotnet run --project ./src/Presentation/

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '
ExtendedSpecificationPattern-Example/README.md at main · haritha99ch/ExtendedSpecificationPattern-Example · GitHub
Skip to content
README.md
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53 lines (35 loc) · 1.57 KB
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Specification Pattern In .NET With Projection.
This demo project showcases an extended specification pattern with projection capability, specifically tailored for Entity Framework in .NET. It showcases how the specification pattern can be effectively utilized with projection or selecting during SQL query execution rather than mapping after data retrieval, this pattern is designed to handle selection/projection directly within the SQL query when implementing the repository pattern with specifications.
Setup
Prerequisite
  1. .NET 8 installed on your computer. You can download .NET 8 from the official website (https://dotnet.microsoft.com/download/dotnet/8.0).
  2. An integrated development environment (IDE) to write your code
  3. Git installed on your computer.
Initial setup
  1. Clone the project.
git clone https://github.com/haritha99ch/ExtendedSpecificationPattern-Example.git
cd ExtendedSpecificationPattern-Example
  1. Set Environment variables.
dotnet user-secrets set"SqlServerOptions:ConnectionString" CONNECTIONSTRINGS_DEFAULTCONNECTION --project ./src/ApplicationSettings/
  1. Install all the dependencies.
    dotnet restore
  2. Build the project.
dotnet build
  1. Add migrations and update database.
dotnet ef migrations add InitialMigration --project ./src/Infrastructure/
dotnet ef database update --project ./src/Infrastructure/
Make sure, dotnet-ef tool is installed with dotnet tool install --global dotnet-ef
  1. Run the project.
dotnet run --project ./src/Presentation/

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
tryTheater();
// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
ExtendedSpecificationPattern-Example/README.md at main · haritha99ch/ExtendedSpecificationPattern-Example · GitHub
Skip to content
README.md
Latest commit
History
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53 lines (35 loc) · 1.57 KB
README.md
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53 lines (35 loc) · 1.57 KB
Raw
Specification Pattern In .NET With Projection.
This demo project showcases an extended specification pattern with projection capability, specifically tailored for Entity Framework in .NET. It showcases how the specification pattern can be effectively utilized with projection or selecting during SQL query execution rather than mapping after data retrieval, this pattern is designed to handle selection/projection directly within the SQL query when implementing the repository pattern with specifications.
Setup
Prerequisite
  1. .NET 8 installed on your computer. You can download .NET 8 from the official website (https://dotnet.microsoft.com/download/dotnet/8.0).
  2. An integrated development environment (IDE) to write your code
  3. Git installed on your computer.
Initial setup
  1. Clone the project.
git clone https://github.com/haritha99ch/ExtendedSpecificationPattern-Example.git
cd ExtendedSpecificationPattern-Example
  1. Set Environment variables.
dotnet user-secrets set"SqlServerOptions:ConnectionString" CONNECTIONSTRINGS_DEFAULTCONNECTION --project ./src/ApplicationSettings/
  1. Install all the dependencies.
    dotnet restore
  2. Build the project.
dotnet build
  1. Add migrations and update database.
dotnet ef migrations add InitialMigration --project ./src/Infrastructure/
dotnet ef database update --project ./src/Infrastructure/
Make sure, dotnet-ef tool is installed with dotnet tool install --global dotnet-ef
  1. Run the project.
dotnet run --project ./src/Presentation/

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
}
unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
ExtendedSpecificationPattern-Example/README.md at main · haritha99ch/ExtendedSpecificationPattern-Example · GitHub
Skip to content
README.md
Latest commit
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53 lines (35 loc) · 1.57 KB
README.md
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53 lines (35 loc) · 1.57 KB
Raw
Specification Pattern In .NET With Projection.
This demo project showcases an extended specification pattern with projection capability, specifically tailored for Entity Framework in .NET. It showcases how the specification pattern can be effectively utilized with projection or selecting during SQL query execution rather than mapping after data retrieval, this pattern is designed to handle selection/projection directly within the SQL query when implementing the repository pattern with specifications.
Setup
Prerequisite
  1. .NET 8 installed on your computer. You can download .NET 8 from the official website (https://dotnet.microsoft.com/download/dotnet/8.0).
  2. An integrated development environment (IDE) to write your code
  3. Git installed on your computer.
Initial setup
  1. Clone the project.
git clone https://github.com/haritha99ch/ExtendedSpecificationPattern-Example.git
cd ExtendedSpecificationPattern-Example
  1. Set Environment variables.
dotnet user-secrets set"SqlServerOptions:ConnectionString" CONNECTIONSTRINGS_DEFAULTCONNECTION --project ./src/ApplicationSettings/
  1. Install all the dependencies.
    dotnet restore
  2. Build the project.
dotnet build
  1. Add migrations and update database.
dotnet ef migrations add InitialMigration --project ./src/Infrastructure/
dotnet ef database update --project ./src/Infrastructure/
Make sure, dotnet-ef tool is installed with dotnet tool install --global dotnet-ef
  1. Run the project.
dotnet run --project ./src/Presentation/

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
.CodeMirror, .CodeMirror *,
.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
// Toggle with Alt+Shift+D
document.addEventListener('keydown', function(e) {
if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
if (enabled) {
applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
} else {
removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
}
}
});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();
ExtendedSpecificationPattern-Example/README.md at main · haritha99ch/ExtendedSpecificationPattern-Example · GitHub
Skip to content
README.md
Latest commit
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Specification Pattern In .NET With Projection.
This demo project showcases an extended specification pattern with projection capability, specifically tailored for Entity Framework in .NET. It showcases how the specification pattern can be effectively utilized with projection or selecting during SQL query execution rather than mapping after data retrieval, this pattern is designed to handle selection/projection directly within the SQL query when implementing the repository pattern with specifications.
Setup
Prerequisite
  1. .NET 8 installed on your computer. You can download .NET 8 from the official website (https://dotnet.microsoft.com/download/dotnet/8.0).
  2. An integrated development environment (IDE) to write your code
  3. Git installed on your computer.
Initial setup
  1. Clone the project.
git clone https://github.com/haritha99ch/ExtendedSpecificationPattern-Example.git
cd ExtendedSpecificationPattern-Example
  1. Set Environment variables.
dotnet user-secrets set"SqlServerOptions:ConnectionString" CONNECTIONSTRINGS_DEFAULTCONNECTION --project ./src/ApplicationSettings/
  1. Install all the dependencies.
    dotnet restore
  2. Build the project.
dotnet build
  1. Add migrations and update database.
dotnet ef migrations add InitialMigration --project ./src/Infrastructure/
dotnet ef database update --project ./src/Infrastructure/
Make sure, dotnet-ef tool is installed with dotnet tool install --global dotnet-ef
  1. Run the project.
dotnet run --project ./src/Presentation/