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Rails “validates_uniqueness_of” Case Sensitivity
...its the insert statement for the new record and succeeds
If you have a database constraint requiring uniqueness for that field, Process B will submit the insert statement for the new record and fail with a ugly server exception that comes back from the SQL adapter. If you do not have a database con...
What's the purpose of the LEA instruction?
... y = points[i].ycoord;
where points[] is an array of Point. Assuming the base of the array is already in EBX, and variable i is in EAX, and xcoord and ycoord are each 32 bits (so ycoord is at offset 4 bytes in the struct), this statement can be compiled to:
MOV EDX, [EBX + 8*EAX + 4] ; right s...
What does Html.HiddenFor do?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Best way to use html5 data attributes with rails content_tag helper?
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Xcode 4 and Core Data: How to enable SQL Debugging
... any thoughts on how to print the arguments that are passed to the database? this approach works fine to see how the query is being structured, but it print only the sql statement, like UPDATE ZTABLE SET ZCOLUMN = ? WHERE ZID = ? and it is not very useful to really see what is the data being sen...
In Eclipse, can I have multiple Console views at once, each showing a different Console?
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How can I get the full object in Node.js's console.log(), rather than '[Object]'?
...at string (see below): uses util.format() to print the remaining arguments based on the format string (see below); e.g.:
o = { one: 1, two: 'deux', foo: function(){} }; console.log('o as JSON: %j', o) // -> 'o as JSON: {"one":1,"two":"deux"}'
Note:
There is NO placeholder for representing ob...
Relation between CommonJS, AMD and RequireJS?
...e server-side JavaScript runtimes, and yes, both of them implement modules based on the CommonJS Module spec.
AMD (Asynchronous Module Definition) is another specification for modules. RequireJS is probably the most popular implementation of AMD. One major difference from CommonJS is that AMD speci...
How to write a JSON file in C#?
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Search for “does-not-contain” on a DataFrame in pandas
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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